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BHT-206A/B-SERIES-MM-1

NOTICE

The instructions set forth in this manual, as supplemented or modified by Alert Service Bulletins (ASB) or
other directions issued by Bell Helicopter Textron Inc. and Airworthiness Directives (AD) issued by the
applicable regulatory agencies, shall be strictly followed. This manual covers 206A, 206B, and 206B3
helicopters SN 4 through and including current production. TH-57/TH-67 helicopters are covered along
with the use of manual supplements. 206B1 helicopters are not covered by this manual.

FOR MODELS 206A, 206B, AND 206B3 HELICOPTERS

MAINTENANCE MANUAL

VOLUME 1

GENERAL INFORMATION

Export Classification C, ECCN EAR99

32672)),&(%2;)257:257+7(;$6

7 JANUARY 1998

REVISION 16 — 25 JUNE 2019

COPYRIGHT NOTICE

COPYRIGHT

201

BELL ® HELICOPTER TEXTRON INC.
AND BELL HELICOPTER TEXTRON
CANADA LTD.

ALL RIGHTS RESERVED

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Содержание Bell 206A Series

Страница 1: ...s 206A 206B and 206B3 helicopters SN 4 through and including current production TH 57 TH 67 helicopters are covered along with the use of manual supplements 206B1 helicopters are not covered by this m...

Страница 2: ...licopter operation or maintenance is forbidden without prior written authorization from Bell Helicopter Textron Inc Export Classification C ECCN EAR99 DESTINATION CONTROL STATEMENT WARNING This docume...

Страница 3: ...ELL IS NOT APPLICABLE TO NON BELL PARTS OR PARTS THAT HAVE BEEN REPAIRED USING DATA AND OR PROCESSES NOT APPROVED BY BELL BELL IS NOT RESPONSIBLE FOR ANY PART OTHER THAN THOSE THAT IT HAS APPROVED BEF...

Страница 4: ...ur local Customer Service Engineering CSE network please access http www bellhflightcom support and service support Model 206 407 or 505 Phone 450 437 2862 or 800 363 8023 U S Canada Fax 450 433 0272...

Страница 5: ...evision 16 25 JUN 19 VOLUME 1 Cover 16 Title 16 PN 16 Warning 16 CSS 16 A D 16 E F 16 Help 13 Customer Feedback 16 Helicopter Sales Notice 16 Warranty 16 BR 16 TR 16 i ii 16 Chapter 1 1 2 6 3 12 4 8 6...

Страница 6: ...0 71 72 4 73 0 74 14 75 78 0 79 80 4 Chapter 21 1 14 6 15 16 6 17 20 6 Chapter 25 1 8 6 9 10 6 Chapter 26 1 2 6 3 4 6 5 6 6 VOLUME 4 Cover 13 Title 15 PN 13 Chapter 28 1 2 11 3 0 4 8 5 0 6 8 7 11 0 1...

Страница 7: ...4 9 5 7 9 8 15 6 16 12 17 30 6 31 12 32 55 6 56 10 57 60 6 VOLUME 7 Cover 6 Title 10 PN 6 Chapter 64 1 2 6 3 4 6 5 14 6 15 8 16 22 6 23 7 24 25 6 26 7 27 6 28 7 29 30 6 31 32 6 Chapter 65 1 2 10 2A 2B...

Страница 8: ...0 57 58 0 59 70 0 71 74 10 74A 74B 10 75 84 0 85 86 0 Chapter 75 1 2 0 3 6 0 Chapter 76 1 7 2 2 3 4 7 5 8 2 9 7 10 2 11 12 7 13 2 14 6 15 16 7 16A 16B 7 17 28 2 29 31 7 32 34 2 35 36 2 37 42 2 43 44 2...

Страница 9: ...12 Cover 15 Title 15 PN 15 Chapter 98 1 8 15 9 10 15 11 82 15 83 84 15 VOLUME 13 Cover 0 Title 0 PN 0 Chapter 99 1 2 0 MMS 01 1 2 0 3 6 0 MMS 02 1 2 0 3 12 0 MMS 03 1 2 0 3 6 0 MMS 04 1 2 0 3 6 0 MMS...

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Страница 11: ...__________________________ _______________________________________________________________________ _______________________________________________________________________ Should Read _________________...

Страница 12: ...TAPE HERE From POSTAGE NECESSARY Product Support Engineering 12 800 rue de l Avenir Mirabel Qu bec Canada J7J 1R4 FOLD ON DOTTED LINES AND TAPE TAPE HERE Export Classification C ECCN EAR99...

Страница 13: ..._________________________________________________ Future Publications to be mailed to this address Address ____________________________________________________________________ City ___________________...

Страница 14: ...MAILED IN THE UNITED STATES COMMERCIAL PUBLICATION DISTRIBUTION CENTER P O BOX 482 FORT WORTH TEXAS 76101 0482 FOLD ON DOTTED LINES AND TAPE BUSINESS REPLY MAIL FIRST CLASS PERMIT NO 1744 FORT WORTH T...

Страница 15: ...nce and strict tort delictual liability with respect to work performed by third parties at Purchaser s request and with respect to engines engine accessories batteries radios and avionics except Selle...

Страница 16: ......

Страница 17: ...NESS LIMITATIONS SCHEDULE 4 1 Airworthiness Limitations Schedule 4 00 00 3 TABLES Table Page Number Title Number 4 1 Airworthiness Limitations Schedule 4 Chief Engineering Aircraft Certification Trans...

Страница 18: ...rt Classification C ECCN EAR99 REVISION NO DATE OF SIGNATURE TC SIGNATURE Original 7 January 1998 N A 1 21 May 2002 2 N A N A 3 N A N A 4 N A N A 5 N A N A 6 7 December 2009 7 N A N A 8 N A N A 9 N A...

Страница 19: ...TC APPROVED BHT 206A B SERIES MM 1 4 00 00 Export Classification C ECCN EAR99 REVISION NO DATE OF SIGNATURE TC SIGNATURE 14 N A N A 15 N A N A 16 25 JUNE 2019 25 JUN 2019 Rev 16 Page 3 4...

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Страница 21: ...ROM THE HELICOPTER NOT LATER THAN THE END OF THE LIFE LIMIT IT MUST EITHER BE MADE UNSERVICEABLE OR MARKED IN A CONSPICUOUS MANNER TO PREVENT CONTINUED USE EVEN INADVERTENT USE WHEN A REPLACEMENT PART...

Страница 22: ...ven to the components and assemblies are determined by experience tests and the judgment of Bell Helicopter engineers The airworthiness lives and inspection intervals cannot be changed without the app...

Страница 23: ...4800 hours Strap Retention Fitting 206 011 140 001 1200 hours Tension Torsion Strap 206 011 147 001 003 005 007 1200 hours 24 months Strap Retention Fitting 206 011 150 101 105 2400 hours Tension Tors...

Страница 24: ...800 hours Swashplate Sleeve Assembly 206 010 454 109 113 14 400 hours Collective Lever 206 010 447 109 14 400 hours Collective Lever 206 010 467 001 105 4800 hours Servo Actuator 206 076 023 001 003 8...

Страница 25: ...1 125 127 131 133 135 137 2500 hours Tail Rotor Blade 206 016 501 001 200 hours MISCELLANEOUS Landing Gear Crosstube Assembly 206 050 107 ALL Emergency Lightweight Flotation Landing Gear Crosstube Ass...

Страница 26: ...Royce 250 C20 Series Operation and Maintenance Manual 10W2 AIRFRAME Pylon Support Link 206 031 508 005 007 NOTES Airworthiness limitation for part number listed applies to all successive dash numbers...

Страница 27: ...24 months starts when new straps are installed in a main rotor hub and blade assembly and are subjected to rotation on the helicopter Refer to ASB 206 80 9 dated 3 June 1980 Main rotor blade 206 010...

Страница 28: ...0 410 003 005 101 installed in tail rotor gearbox 206 040 402 ALL have a life of 3000 hours Part of squib assembly 30908 Retire squib no later than 15 years after date of manufacture Dispose of time e...

Страница 29: ...h part number 41103650 Refer to ASB 206A 14 Rev A dated 8 April 1970 Cyclic control bellcrank support assembly 206 001 521 005 006 will have been removed from service no later than 15 July 1969 Refer...

Страница 30: ...ired squib in accordance with local regulations Storage life of cutter assembly Y 1265 11 1 in original sealed container is set at 60 months Service life is 36 months from the time the cutter assembly...

Страница 31: ...5 00 00 29 5 18 100 Hour Airframe Progressive Inspection Event No 3 5 00 00 37 5 19 100 Hour Airframe Progressive Inspection Event No 4 5 00 00 41 5 20 100 Hour Airframe Periodic Inspection 5 00 00 4...

Страница 32: ...25 Hours After Each Installation 5 00 00 151 5 50 100 Hours After Each Installation 5 00 00 153 CONDITIONAL INSPECTIONS 5 51 Conditional Inspections 5 00 00 155 5 52 Hard Landing 5 00 00 157 5 53 Sud...

Страница 33: ...5 1 100 Hour Airframe Progressive Inspection Events 11 5 2 300 Hour Airframe Progressive Inspection Events 12 5 3 300 Hour Airframe Progressive or 300 Hour Airframe Periodic Inspection Program Prereq...

Страница 34: ......

Страница 35: ...ment of Bell Helicopter Textron engineers They are subject to change only by Bell Helicopter Textron or an approved Airworthiness Authority Changes to the TBO will be introduced by either revision to...

Страница 36: ...s and component overhaul inspections a Scheduled inspections must occur at specified operating intervals The intervals may be in operating time hours cycles torque events RIN calendar days months year...

Страница 37: ...on s on a regular basis to prevent non scheduled maintenance Operating time Actual flight or calendar time that must be recorded in the Historical Service Records or in the helicopter logs The operati...

Страница 38: ...icable for those operators whose governing aviation authority requires to specifically approve the inspection and overhaul tolerance If approval of the inspection and overhaul tolerance is required by...

Страница 39: ...to a maximum of 300 hours operating time 6 months calendar time whichever is less 1200 HOUR 24 MONTH INSPECTION DUE AT MAXIMUM ALLOWED TOLERANCE INSPECTION CARRIED OUT AT NEXT 1200 HOUR 24 MONTH INSPE...

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Страница 41: ...y The progressive inspections are divided into separate events of similar workload Table 5 1 Table 5 2 and Figure 5 1 NOTE All conditions of Table 5 3 must be met to utilize the 300 hour airframe prog...

Страница 42: ...do not complete all six events in a 12 calendar month period the remaining events must be completed prior to operating the helicopter In addition to performing the 300 hour airframe progressive inspec...

Страница 43: ...so need to perform and record the following scheduled inspections NOTE Every 300 hours of operation helicopters completing the 100 hour airframe periodic inspection program also need to accomplish the...

Страница 44: ...inspection program to a 100 hour airframe periodic inspection program do a complete 100 hour airframe periodic inspection To change from a 100 hour airframe periodic inspection program to a 100 our ai...

Страница 45: ...06 031 629 103 BHT 206 SRM Tailboom Attachment Fittings and Longeron Assembly 206 031 314 201A or 206 031 314 201B TB 206 12 199 Aft Fuselage Bulkhead 407 030 027 105 TB 206 12 199 Tailboom Assembly 2...

Страница 46: ...quired To qualify for the 300 hour airframe progressive inspection program or the 300 hour airframe periodic inspection program the helicopter must have all of the parts listed installed or subsequent...

Страница 47: ...ZONE 9 ZONE 4 ZONE 5 ZONE 6 ZONE 2 Zone 1 Zone 2 Zone 3 Zone 4 Zone 5 Zone 6 Zone 7 Zone 8 Zone 9 Zone 10 Main rotor hub and blade assembly Tail rotor hub and blade assembly Forward top deck Power pl...

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Страница 49: ..._____________________ ZONE 1 MAIN ROTOR SYSTEM Chapter 11 PLACARDS AND MARKINGS 1 Examine the placards decals and markings Make sure they are readable correctly applied and in agreement with the appli...

Страница 50: ...n If corrosion is visible remove with fine abrasive pad C 407 If corrosion cannot be removed with pads or is extensive disassemble hub for inspection and repair NOTE If the main rotor hub must be disa...

Страница 51: ...security of attachment a Yoke b Pitch horns c Trunnion and trunnion caps d Counterweight hardware Chapter 64 3 Examine tail rotor blades as follows a Tip block rivets for damage corrosion erosion and...

Страница 52: ...amine forward fairing for condition and security 2 Examine all fairing and cowling latches and or fasteners for condition 3 Examine top deck for condition leaks and security 4 Clean transmission deck...

Страница 53: ...fying glass for damage corrosion and cracks Give particular attention to swaged ends at jam nut or inserts Chapter 76 3 Examine N2 control linkages on forward deck for condition and security Pay parti...

Страница 54: ...for wear deterioration and evidence of excessive axial play between pivot sleeve and swashplate support 10 Examine collar set bushings for cracks and damage 11 Examine swashplate support and uniball s...

Страница 55: ...005 as follows Visually inspect the two forward webs of the support assembly for cracks with a 5X magnifying glass All cracks reported in the support assembly have originated in the top edge of the fo...

Страница 56: ...t contact and general condition and security h All pylon support hardware for security of attachment 2 Examine transmission assembly for condition and security 3 Examine transmission oil cooler for co...

Страница 57: ...amine main driveshaft attachment bolts for security NOTE TEMP PLATE indicator dots are of a white or gray color that turn black when exposed to an overtemperature condition Chemical contamination can...

Страница 58: ...nd tail rotor gearbox prior to running helicopter 3 Make sure that helicopter is ready for ground run and that surrounding area is clear BHT 206A FM 1 BHT 206B FM 1 BHT 206B3 FM 1 4 Start the helicopt...

Страница 59: ...he placards decals and markings Ensure they are readable correctly applied and in agreement with the applicable configuration of your helicopter AIRFRAME POWER PLANT AREA Chapter 71 1 Examine firewall...

Страница 60: ...10W2 1 Perform engine inspection per the applicable Rolls Royce Operation and Maintenance Manual Chapter 71 2 Examine engine inlet bellmouth for obstruction and general condition 3 Examine engine comp...

Страница 61: ...ravel limit NOTE If dual controls are installed it is permitted for pointer to be 0 078 inch 2 00 mm below 30 mark when copilot twist grip is used d Rotate pilot throttle grip to idle detent Fuel cont...

Страница 62: ...amine forward short shaft steel disc pack couplings for condition and security 4 Examine forward short shaft steel splined adapters for adequate lubrication and freedom of movement 5 Torque check forw...

Страница 63: ...or evidence of oil leaks Examine oil cooler pan for cleanliness and make sure the drain is not blocked 2 Examine all flexible and rigid fluid lines for condition and security a Pay particular attentio...

Страница 64: ...ium splined adapter for adequate lubrication and freedom of movement 6 Torque check disc pack coupling fasteners 50 to 70 inch pounds 5 7 to 7 9 Nm Chapter 96 ELECTRICAL 1 Examine all electrical compo...

Страница 65: ...T 206B3 FM 1 4 Start the helicopter and conduct ground run at 100 NR to check for leaks and ensure all systems are operational and parameters are within Flight Manual limitations 5 Shut down the helic...

Страница 66: ......

Страница 67: ...s decals and markings Ensure they are readable correctly applied and in agreement with the applicable configuration of your helicopter Chapter 53 TAILBOOM STRUCTURE NOTE In the event that cracks are f...

Страница 68: ...inch pounds 8 47 to 10 75 Nm Chapter 32 11 Examine vertical fin tail skid for condition security and signs of ground contact 12 Examine for open drains on lower skin of tailboom and clear any obstruct...

Страница 69: ...TCH CHANGE CONTROLS 1 Examine the tail rotor pitch control mechanism for freedom of travel throughout range and for condition and security 2 Examine the following tail rotor pitch change components a...

Страница 70: ...een carried out 2 Check oil level of transmission hydraulic tank engine and tail rotor gearbox prior to running helicopter 3 Make sure that helicopter is ready for ground run and that surrounding area...

Страница 71: ...LACARDS AND MARKINGS 1 Examine the placards decals and markings Ensure they are readable correctly applied and in agreement with the applicable configuration of your helicopter BHT 206A FM 1 BHT 206B...

Страница 72: ...Chapter 67 CONTROLS 1 Examine the collective control stick for condition and security Examine copilot collective control stick if installed 2 Examine the cyclic control stick for condition and securit...

Страница 73: ...y are readable correctly applied and in agreement with the applicable configuration of your helicopter FUSELAGE Chapter 53 1 Examine forward fuselage for condition Chapter 52 2 Examine all cabin doors...

Страница 74: ...s corrosion delamination loose or missing rivets and condition 12 Examine all fuselage sealant joints for condition Restore sealant as necessary Chapter 96 and Chapter 97 ELECTRICAL AND AVIONICS 1 Exa...

Страница 75: ...n and freedom from obstructions Applicable Service Instruction 6 Examine heater and or air conditioning inlets and outlets for cleanliness and absence of obstructions if installed Chapter 53 7 Examine...

Страница 76: ...UNDING OF THE HELICOPTER UNTIL THE PROBLEM IS CORRECTED Chapter 53 and Chapter 4 g Examine the four tailboom attachment fittings on fuselage aft bulkhead and tailboom forward bulkhead for cracks Give...

Страница 77: ...ding strips for condition and security if installed 4 Examine fairings for condition and security if installed 5 Examine crosstube riveted or clamped supports for condition and security Give particula...

Страница 78: ...t 2 Check oil level of transmission hydraulic tank engine and tail rotor gearbox prior to running helicopter 3 Make sure that helicopter is ready for ground run and that surrounding area is clear BHT...

Страница 79: ...______________ _________________________ HELICOPTER S N __________ _________________________ REGISTRY NO ____________ _________________________ TOTAL TIME _______________________________________ SIGNA...

Страница 80: ......

Страница 81: ...NE 1 MAIN ROTOR SYSTEM Chapter 11 PLACARDS AND MARKINGS 1 Examine the placards decals and markings Make sure they are readable correctly applied and in agreement with the applicable configuration of y...

Страница 82: ...ies CR O Chapter 62 a Examine fillet radius of both yoke spindles inboard of wear sleeves for evidence of corrosion If corrosion is visible remove with fine abrasive pad C 407 If corrosion cannot be r...

Страница 83: ...ASSEMBLY 1 Clean tail rotor blades to maintain visibility of warning stripes BHT 206A B L Series CR O Chapter 64 2 Examine the following tail rotor hub assembly components for condition and security...

Страница 84: ...NNEL ONLY Chapter 12 1 Make sure applicable servicing requirements have been carried out 2 Check oil level of transmission hydraulic tank engine and tail rotor gearbox prior to running helicopter 3 Ma...

Страница 85: ...rt Classification C ECCN EAR99 6 Shut down the helicopter PROGRESSIVE INSPECTIONS 5 21 300 HOUR AIRFRAME PROGRESSIVE INSPECTION EVENT NO 1 CONT DATA REFERENCE INSPECTION TASK DESCRIPTION INITIAL MECH...

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Страница 87: ...___________________ ZONE 3 FORWARD DECK Chapter 11 PLACARDS AND MARKINGS 1 Examine the placards decals and markings Make sure they are readable correctly applied and in agreement with the applicable c...

Страница 88: ...nk supports f Attaching bolts and nuts 2 Inspect main rotor pitch links with a 3X magnifying glass for damage corrosion and cracks Give particular attention to swaged ends at jam nut or inserts Chapte...

Страница 89: ...erioration 8 Examine pivot sleeve bearings for wear deterioration and evidence of excessive axial play between pivot sleeve and swashplate support 9 Examine collar set bushings for cracks and damage 1...

Страница 90: ...al condition 3 Examine hydraulic reservoir for leaks and general condition 4 Examine hydraulic pump splines transmission oil pump splines and rotor tachometer and adapter splines for condition and sec...

Страница 91: ...and general condition and security g All pylon support hardware for security of attachment 2 Examine transmission assembly for condition and security 3 Examine transmission oil cooler for condition s...

Страница 92: ...amine main driveshaft attachment bolts for security NOTE TEMP PLATE indicator dots are of a white or gray color that turn black when exposed to an overtemperature condition Chemical contamination can...

Страница 93: ...o running helicopter 3 Make sure that helicopter is ready for ground run and that surrounding area is clear BHT 206A FM 1 BHT 206B FM 1 BHT 206B3 FM 1 4 Start the helicopter and conduct ground run at...

Страница 94: ......

Страница 95: ...he placards decals and markings Ensure they are readable correctly applied and in agreement with the applicable configuration of your helicopter AIRFRAME POWER PLANT AREA Chapter 71 1 Examine firewall...

Страница 96: ...10W2 1 Perform engine inspection per the applicable Rolls Royce Operation and Maintenance Manual Chapter 71 2 Examine engine inlet bellmouth for obstruction and general condition 3 Examine engine comp...

Страница 97: ...r contact with minimum and maximum stops before throttle grip reaches travel limit NOTE If dual controls are installed it is permitted for pointer to be 0 078 inch 2 00 mm below 30 mark when copilot t...

Страница 98: ...s and lubricate Chapter 71 and Chapter 12 16 Examine N1 and N2 tachometer generator shaft splines and gearbox adapter splines for condition Clean and lubricate shaft splines FUEL SYSTEM AIRFRAME FUEL...

Страница 99: ...imum of 2 minutes to ensure remaining air is purged from fuel filter head and to check for fuel leaks Chapter 28 FUEL PUMP NOTE This inspection is only applicable to helicopters S N 4 through 3566 pri...

Страница 100: ...er 63 1 Examine freewheel assembly for condition leaks and security Chapter 63 2 Examine the freewheel unit chip detector for accumulated material Chapter 63 3 Examine forward short shaft steel disc p...

Страница 101: ...hydraulic tank engine and tail rotor gearbox prior to running helicopter 3 Make sure that helicopter is ready for ground run and that surrounding area is clear BHT 206A FM 1 BHT 206B FM 1 BHT 206B3 FM...

Страница 102: ......

Страница 103: ...________________ ZONE 5 AFT TOP DECK PLACARDS AND MARKINGS Chapter 11 1 Examine the placards decals and markings Ensure they are readable correctly applied and in agreement with the applicable configu...

Страница 104: ...peller 206 061 432 031 requires penetrant inspection Impeller 206 061 432 109 and subsequent do not require penetrant inspection BHT ALL SPM Chapter 6 2 Using dye penetrant methods inspect oil cooler...

Страница 105: ...are found during inspection of tailboom contact Product Support Engineering Chapter 53 1 Clean entire tailboom taking particular care to remove all grime and dirt 2 Remove tail rotor driveshaft and ge...

Страница 106: ...on lower skin of tailboom and clear any obstructions 12 Examine antennas for damage and security Chapter 32 13 Examine vertical fin tailskid for condition security and signs of ground contact TAIL ROT...

Страница 107: ...umulated material Chapter 96 7 Perform operational check of the tail rotor gearbox chip detector Chapter 67 TAIL ROTOR PITCH CHANGE CONTROLS 1 Examine the tail rotor pitch change control mechanism for...

Страница 108: ...apter 12 1 Make sure applicable servicing requirements have been carried out 2 Check oil level of transmission hydraulic tank engine and tail rotor gearbox prior to running helicopter 3 Make sure that...

Страница 109: ...N __________ _________________________ REGISTRY NO ____________ _________________________ TOTAL TIME _______________________________________ SIGNATURE _______________ _________________________ ZONE 7...

Страница 110: ...vertical tunnel covers and roll over bulkhead access panels Chapter 53 2 Remove roof beam access panels Chapter 67 3 Examine flight control tubes inside roof beam for condition and security Chapter 5...

Страница 111: ...nel for cracks corrosion and loose fasteners e Vertical tunnel stiffening angles at roof beam interface for cracks condition and loose fasteners Chapter 25 and Chapter 53 9 Remove crew seat cushions a...

Страница 112: ...ration absence of obstructions or debris and open drains Chapter 95 9 Verify for proper operation of the fuel valve switch guard Chapter 26 10 Inspect cabin fire extinguisher for condition security an...

Страница 113: ...illumination of all caution panel annunciator light segments by depressing test switch or each individual light segment as applicable 7 Verify instrument lighting and dimming capabilities ZONE 8 FORWA...

Страница 114: ...y compartment for condition and security Chapter 32 8 Examine cabin entry steps for condition and security if installed Chapter 52 9 Examine windshields and skylights for condition Chapter 53 10 Exami...

Страница 115: ...ND RUN OF HELICOPTER TO BE ACCOMPLISHED BY QUALIFIED PERSONNEL ONLY Chapter 12 1 Make sure applicable servicing requirements have been carried out 2 Check oil level of transmission hydraulic tank engi...

Страница 116: ......

Страница 117: ...ne the placards decals and markings Make sure they are readable correctly applied and in agreement with the applicable configuration of your helicopter FUSELAGE EXTERIOR Chapter 53 1 Examine aft fusel...

Страница 118: ...longerons for cracks corrosion and condition Pay particular attention to the upper left longeron e Examine interface between longerons and engine pan structure for cracks corrosion distortion and loo...

Страница 119: ...s and connectors for chafing general condition and security 3 Examine all optional equipment installed in the aft fuselage area for condition and security 4 Verify proper operation of fuel sump drain...

Страница 120: ...required 7 Examine cabin entry steps for condition and security if installed 8 Examine sealant joint at junction with skid tube saddles Restore sealant C 251 and paint finish as required Chapter 32 S...

Страница 121: ...1 BHT 206B FM 1 BHT 206B3 FM 1 4 Start the helicopter and conduct ground run at 100 NR to check for leaks and ensure all systems are operational and parameters are within Flight Manual limitations Ch...

Страница 122: ......

Страница 123: ...______________ _________________________ HELICOPTER S N __________ _________________________ REGISTRY NO ____________ _________________________ TOTAL TIME _______________________________________ SIGNA...

Страница 124: ......

Страница 125: ...g the 300 hour airframe progressive inspection program or the 300 hour airframe periodic inspection program Chapter 62 MAIN ROTOR 1 Torque check pillow block retention hardware 84 to 107 inch pounds 9...

Страница 126: ...tion to the tailboom attachment fittings intercostals and bolts and to fasteners between the intercostals Particular attention must be given to inspection of the upper left fitting 5 Make sure the are...

Страница 127: ...0 hours of operation the 300 hour inspection must be accomplished in conjunction with the 100 hour airframe progressive inspection program or the 100 hour airframe periodic inspection program FORWARD...

Страница 128: ...A SPEED CLINCH C60207AA 020 WASHER AN960PD10 MAY BE USED AS REQUIRED UNDER SPEED CLINCH HEAD TO ADJUST FOR GRIP LENGTH 8 In the vertical tunnel area examine the following Chapter 67 a Flight control...

Страница 129: ...hapter 67 1 Verify minimum friction of collective control and readjust as required Verify minimum friction of copilot collective control stick if installed 2 Verify minimum friction of cyclic control...

Страница 130: ...o 142 N If out of limits adjust to 15 to 32 pounds 67 to 142 N and check again HYDRAULIC Chapter 12 Chapter 29 Chapter 63 1 Remove hydraulic pump and rotor tachometer generator 2 Examine hydraulic pum...

Страница 131: ...e of filter head to ensure that hole is unobstructed applicable to fuel filter assemblies 306001 306005 222 366 621 001 003 and 101 52 2889 016 and 52 2889 016A Chapter 28 Rolls Royce 250 Series Opera...

Страница 132: ...Turn ON both fuel boost pumps and verify if engine FUEL FILTER caution light illuminates c If the engine FUEL FILTER caution light illuminates turn OFF both fuel boost pumps Remove the plug and recon...

Страница 133: ...dge of sealant coating should be visible No indications of corrosion are acceptable BHT 206 SRM 1 d If there is no indication of corrosion and the bonded surface seal is present replace access panel a...

Страница 134: ...nting flange where individual blades attach Inspection may be accomplished with impeller installed TAIL ROTOR DRIVESHAFT Chapter 65 1 Lubricate oil cooler blower and tail rotor driveshaft hanger beari...

Страница 135: ...1 Remove pilot and copilot if installed cyclic control sticks BHT 206B3 CR O Chapter 67 2 Clean lower 4 inches 101 6 mm of removed cyclic stick tube s and inspect 3 Visually inspect cyclic stick tubes...

Страница 136: ...it of one repair per bore Repair or replace lever assembly as required 8 For cyclic stick tubes considered serviceable polish out any acceptable damage using 400 to 600 grit abrasive cloth or paper C...

Страница 137: ...____________ FACILITY _________________ _________________________ HELICOPTER S N __________ _________________________ REGISTRY NO ____________ _________________________ TOTAL TIME ____________________...

Страница 138: ......

Страница 139: ...AND BLADES AND TAIL ROTOR HUB AND BLADES NOTE The following procedures shall be accomplished as frequently as deemed necessary when operating in rain corrosive salt laden air or other adverse environm...

Страница 140: ...lade bearings 4 Apply a light coat of corrosion preventive compound C 125 to all hub and blade surfaces Flood areas between main rotor hub grip tangs and blades latch bolts to grips and yoke fillet ar...

Страница 141: ...irframe periodic inspection has been completed in the last 12 calendar month period 2 Inspect all fuel system oil system and hydraulic system filler caps for proper functioning and sealing Make sure t...

Страница 142: ......

Страница 143: ...E _______________________________________ SIGNATURE _______________ _________________________ MAIN ROTOR MAST Chapter 63 BHT 206A B L Series CR O 1 Inspect mast assembly internal surface internal diam...

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Страница 145: ...ts with MEK C 309 Wipe dry 3 Visually inspect bolts nuts for corrosion and thread damage Replace any bolts nuts that have damaged threads detectable wear and or corrosion 4 Apply a coating of corrosio...

Страница 146: ...ect the fuel tube assembly 4 from the top of the filter 3 3 Remove the filter 3 and discard packing 2 4 Clean the filter 3 by back flushing with clean fuel Make sure the filter is clean or replace as...

Страница 147: ...BHT 206A B SERIES MM 1 5 00 00 30 APR 2013 Rev 14 Page 117 Export Classification C ECCN EAR99 Figure 5 2 24 Month Inspection of Main Rotor Flight Control System Bolts...

Страница 148: ...4 30 APR 2013 Export Classification C ECCN EAR99 Figure 5 3 24 Month Fuel Vent Purge Fitting Filter Inspection 206AB_MM_05_0002 S N 004 THROUGH 2123 POST ASB 206 05 103 Fuel vent purge fitting Packing...

Страница 149: ...HELICOPTER S N __________ _________________________ REGISTRY NO ____________ _________________________ TOTAL TIME _______________________________________ SIGNATURE _______________ ____________________...

Страница 150: ......

Страница 151: ...ive of the following modifications have been carried out on transmission 206 040 002 005 this 600 hour inspection is not required Refer to the 1200 hours of component operation scheduled inspection pa...

Страница 152: ...LLING OF SPHERICAL ROLLERS IF PLANET ASSEMBLY BECOMES TILTED DO NO FORCE TO STRAIGHTEN ROTATE PLANET GENTLY TO STRAIGHTEN IF PLANET WILL NOT TURN FREELY ONE OR MORE ROLLERS MAY HAVE SHIFTED FROM PROPE...

Страница 153: ...ENSURE PARTS DO NOT DROP INTO TRANSMISSION CASE BHT 206A B M O 5 Reassemble transmission and install NOTE If it becomes necessary to replace sun gear for second time due to spline wear the mating mai...

Страница 154: ...mension measured between pins is greater than maximum replace top case 4 On reassembly ensure all inspection compound has been removed from inside surfaces internal oil passages and oil fitting bosses...

Страница 155: ...in access to control tube remove tail rotor gearbox fairing and access panel on right side of aft fuselage adjacent to tailboom b Remove attachment bolts at each end of control tube through aft end of...

Страница 156: ...nd panels that were removed Chapter 63 MAIN DRIVESHAFT 206 040 015 ALL Chapter 12 BHT 206B3 CR O Chapter 63 Inspect inner and outer coupling teeth splines for wear and corrosion boot for condition and...

Страница 157: ...Chapter 62 MAIN ROTOR HUB ASSEMBLY NOTE Applicable only to main rotor hub 206 011 100 127 and subsequent with yoke 206 011 149 105 installed 1 Inspect yoke and trunnion bearing surfaces for brinelling...

Страница 158: ...ly TOP CASE 1 Fluorescent penetrant inspect top case in area of ring gear spline tooth roots for indications of cracks If cracks are found part must be replaced It is not necessary to strip paint from...

Страница 159: ...amage 3 Inspect pinion and gear teeth for chipped broken or worn teeth 4 Inspect bearing retainer for cracks wear or damage 5 Inspect bearing surfaces of rollers inner race outer race planet gear for...

Страница 160: ...mbly and sun gear 2 Reassemble transmission Chapter 63 3 Install transmission 4 Inspect packing and reducer or filter at transmission oil pressure regulating valve boss Install new packing Replace red...

Страница 161: ...and nylatron sleeves at five areas where tube contacts fairleads and proceed as follows a If nylatron sleeves are worn on one side only but surface of control tube is unworn tube may be rolled 180 and...

Страница 162: ......

Страница 163: ..._____ TOTAL TIME _______________________________________ SIGNATURE _______________ _________________________ Chapter 63 BHT 206A B L Series CR O Chapter 63 MAIN ROTOR MAST 1 Remove disassemble and cle...

Страница 164: ...with DOD PRF 85734 oil since new or since the last overhaul Post TB 206 04 179 Transmissions 204 040 002 115 117 and subsequent Pre TB 206 04 179 Chapter 63 1 Remove transmission 2 Remove mast assemb...

Страница 165: ...ter shaft It is not necessary to remove the thrust bearing from the outer shaft Remove all sealant and clean all parts The stripping of paint is not required 3 Visually inspect clutch assembly inner a...

Страница 166: ......

Страница 167: ...____________ Chapter 62 ASB 206 93 74 SWASHPLATE SUPPORT 206 010 452 001 005 AND 109 NOTE If windy conditions prevail secure blades with tie down to prevent excessive main rotor flapping 1 Thoroughly...

Страница 168: ......

Страница 169: ...4 115 117 and subsequent that have been operating with DOD PRF 85734 oil since new or since last overhaul TB 206 04 179 If these transmissions have been operated with MIL PRF 23699 or MIL PRF 7808 oil...

Страница 170: ...hplate assembly into the transmission assembly 9 Apply sealant primer and paint to the required areas 10 Install the transmission assembly into the helicopter Chapter 12 11 Service the transmission wi...

Страница 171: ...206 040 402 this inspection may be accomplished concurrently with the duplex bearing 206 040 410 003 005 101 or subsequent replacement at 3000 hours 1 Perform backlash check of the gearbox prior to di...

Страница 172: ...on and damage 7 Inspect sight glass for cracking crazing or any condition that may obscure level or color of oil Inspect oil level indicator for discoloration peeling paint or evidence of a plastic fi...

Страница 173: ...PECIAL INSPECTIONS Accomplish the following special inspections on the helicopter paragraph 5 46 through paragraph 5 50 After fuel system maintenance and or component change 1 to 5 hours after each in...

Страница 174: ...graph 5 50 X Transmission Top Case Torque Check paragraph 5 50 X Fuel System paragraph 5 46 Immediately after maintenance or component change NOTES Retouch corrosion preventive compound and anti slipp...

Страница 175: ...E Installation and removal of a fuel boost pump cartridge upper or lower fuel quantity probe or fuel drain valve does not require this inspection If fuel system maintenance and or component change rem...

Страница 176: ...leaks and for proper operation as follows BHT 206A FM 1 BHT 206B FM 1 BHT 206B3 FM 1 a Perform normal engine start and run up checks b Set throttle to full open and operate engine at 100 N2 for a min...

Страница 177: ...___________ FACILITY _________________ _________________________ HELICOPTER S N __________ _________________________ REGISTRY NO ____________ _________________________ TOTAL TIME _____________________...

Страница 178: ......

Страница 179: ..._______________ _________________________ HELICOPTER S N __________ _________________________ REGISTRY NO ____________ _________________________ TOTAL TIME _______________________________________ SIGN...

Страница 180: ......

Страница 181: ...be between 15 to 32 pounds 67 to 142 N if not within limits adjust to 15 to 32 pounds 67 to 142 N and check tilt friction every 10 to 25 hours until it is stabilized Chapter 65 DISC PACK COUPLING 1 To...

Страница 182: ...pter 65 TAIL ROTOR GEARBOX 1 Torque check tail rotor gearbox retaining nuts 50 to 70 inch pounds 5 6 to 7 9 Nm Repeat every 10 to 25 hours until torque has stabilized SPECIAL INSPECTIONS 5 49 10 TO 25...

Страница 183: ...SIGNATURE _______________ _________________________ POWER PLANT Chapter 71 TB 206 13 204 1 Torque check engine mount attachment hardware at engine and airframe attachment points 2 If fastener is impr...

Страница 184: ...and check tare torque and replace as required Recheck torque at next 100 hours 2 Check transmission top case stud nuts for torque 50 to 70 inch pounds 6 to 8 Nm BHT ALL SPM 3 Touch up paint finish as...

Страница 185: ...ONS Accomplish applicable Conditional Inspection paragraph 5 52 through paragraph 5 60 of helicopter after Hard Landing Sudden Stoppage Main Rotor Sudden Stoppage Tail Rotor Overspeed Main Rotor Overt...

Страница 186: ......

Страница 187: ...age is discovered blades may be retained in service for continued usage If on a hard landing either main rotor blade comes into contact with ground tailboom or other foreign object both main rotor bla...

Страница 188: ...29 and Chapter 67 7 Check for leaks in hydraulic system interference or binding of hydraulic actuator and controls and for satisfactory operation Chapter 67 8 Perform complete visual inspection of the...

Страница 189: ...cks Check for loose or sheared rivets and check torque of bolts at the following locations a Eight rivets in stop plate Four rivets are located on each side of hole b Two bolts at each end and nine ri...

Страница 190: ...n approved blade repair facility for evaluation Chapter 53 17 Inspect engine mounts at fuselage attachment points for cracks 18 Inspect tailboom for contact with main rotor blades If damage is found a...

Страница 191: ...mblies Chapter 63 e Transmission and mast assembly f Main driveshaft g Freewheel assembly Chapter 65 h Tail rotor driveshaft assembly i Tail rotor gearbox j Tail rotor hub and blade assembly Chapter 6...

Страница 192: ......

Страница 193: ...ve system sudden freewheel clutch engagement impact of main rotor with the ground or with a foreign object of sufficient inertia to cause rapid deceleration NOTE Components removed from helicopter for...

Страница 194: ...NOTE If main rotor mast was severed during a main rotor sudden stoppage acceleration the main rotor mast has sustained torsional yielding BHT 206A B L Series CR O Chatper 63 b Mast assembly 1 Concurre...

Страница 195: ...apped b Check mast TIR c Transmission assembly BHT 206B3 CR O Chapter 62 d Swashplate assembly e Replace all control bolts from hydraulic servo actuator to main rotor hub Chapter 67 f All cyclic and c...

Страница 196: ...otor driveshafts for condition If any defect is detected to one driveshaft scrap all bonded tail rotor driveshafts If any defect is detected scrap the defective riveted tail rotor driveshaft m Inspect...

Страница 197: ...ion exceeding the specified limits of the tail rotor driveshaft steel or aluminum adapters Rolls Royce 250 Series Operation and Maintenance Manual 5W2 or 10W2 5 Refer to applicable Rolls Royce 250 Ser...

Страница 198: ......

Страница 199: ...leration of drive system whether caused by seizure within helicopter drive system sudden freewheel clutch engagement or by contact of tail rotor blades with ground water or with a foreign object of su...

Страница 200: ...chment points for cracks 6 Inspect tail rotor hanger supports for cracks and distortion NOTE If tail rotor driveshaft has failed as a result of torsional overload all hangers driveshafts adapters impe...

Страница 201: ...a of tail rotor gearbox mounting studs for cracks 9 Inspect four tailboom attachment points for cracks distortion damage and security Check torque on nuts of tailboom attachment bolts BHT 206 SRM 1 10...

Страница 202: ......

Страница 203: ...____________________ NOTE Components removed from a helicopter for evaluation following an overspeed shall be evaluated as an interrelated group Removal records accompanying each component shall cross...

Страница 204: ...nkles or deformation exist return blade to a major overhaul facility for evaluation 4 If main rotor blades pass previous inspection they are acceptable for continued service c Tail rotor blades 1 If o...

Страница 205: ...peller for visible distortion or cracks of brazed vane joints using dye penetrant inspection method Rolls Royce 250 Series Operation and Maintenance Manual 5W2 or 10W2 2 Refer to applicable Rolls Royc...

Страница 206: ......

Страница 207: ...ter for evaluation following an overtorque shall be evaluated as an interrelated group Removal records accompanying each component shall cross reference part and serial numbers of other drive system c...

Страница 208: ...n driveshaft couplings for indications of wear and overheating CAUTION A QUALIFIED PERSON MUST BE AT THE HELICOPTER CONTROLS DURING THE FOLLOWING PROCEDURE BHT 206A FM 1 BHT 206B FM 1 BHT 206B3 FM 1 d...

Страница 209: ...ssion top case e Transmission spindles pylon support links and deck fittings f Cabin roof shell and beam at transmission mount attachment points g Transmission isolation mount attachment points h Tran...

Страница 210: ...lowing inspection a Main rotor hub Remove and overhaul in accordance with the conditional inspection criteria BHT 206A B L Series CR O b Main rotor mast Remove and accomplish special accident incident...

Страница 211: ...onal inspection limit of this item may be changed to 110 to 130 provided the specific conditions are met per the applicable notes Overtorque conditional inspection limit of this item may be changed to...

Страница 212: ......

Страница 213: ...re engine vibration or a rapid rise in Turbine Outlet Temperature TOT depending on the severity of stall or surge When a stall or surge is suspected follow steps as dictated by reported conditions NOT...

Страница 214: ...or further maintenance action If no blockage is found do step 2 2 Remove the induction fairing and examine the compressor intake area as follows Chapter 71 a Examine the compressor rotor for contamina...

Страница 215: ...n approved facility for overhaul 2 Examine the tail rotor driveshafts for condition and security of attachment 3 Examine the tail rotor disc pack couplings for cracks or gapping greater than 0 015 inc...

Страница 216: ...tor hub assembly Make an entry on the Historical Service Record and attach a tag on the tail rotor hub assembly and write THIS COMPONENT WAS REMOVED FROM SERVICE BECAUSE OF A COMPRESSOR STALL SURGE Se...

Страница 217: ...r 3 If no defects were detected on any blade the blades are serviceable NOTE This inspection does not require disassembly or removal from the helicopter 4 Examine the main rotor hub for condition If a...

Страница 218: ...BLE YAW CAUTION WHEN A COMPRESSOR STALL OR SURGE WITH NOTICEABLE YAW HAS OCCURRED DISCARD ALL TAIL ROTOR BONDED DRIVESHAFTS BHT 206B3 CR O ENGINE TO TRANSMISSION DRIVESHAFT 1 Remove and disassemble th...

Страница 219: ...ility for overhaul 4 If no defects were detected on the gears the transmission assembly is serviceable BHT206B3 CR O TAIL ROTOR GEARBOX 1 Remove the tail rotor gearbox input pinion 2 Inspect the follo...

Страница 220: ...pter light on its skids Remove and examine the chip detectors of the transmission assembly freewheel assembly and tail rotor gearbox 2 If the chip detector shows signs of metal particles perform a ser...

Страница 221: ...ause lightning behavior is difficult to predict conduct a thorough inspection of entire helicopter Lightning damage may appear as burn marks heat discoloration arc marks or small weld marks where meta...

Страница 222: ...luate components removed from helicopter following a lightning strike as an interrelated group Make entries in component records to cross reference part and serial numbers of other drive system compon...

Страница 223: ...ge are found BHT 206A B M O BHT 206B3 CR O a Remove main rotor grips 1 Visually inspect needle bearings for signs of electrical arcing burning or delamination 2 Visually check pitch horns and trunnion...

Страница 224: ...ion and mast assembly and return to limited service 3 After 5 hours remove the chip detectors and filter and inspect for chips a If no chip indications are found return transmission to full service b...

Страница 225: ...n all gear teeth 1 If no evidence of arcing is found reassemble driveshaft and return to service 2 Parts that exhibit arcing or burning shall be scrapped 3 If indications of arcing or burning are pres...

Страница 226: ...lar attention to area around the mounting points for the tail rotor driveshaft hangers and tail rotor gearbox Rolls Royce 250 Series Operation and Maintenance Manual 5W2 or 10W2 i Refer to applicable...

Страница 227: ...________ HELICOPTER S N __________ _________________________ REGISTRY NO ____________ _________________________ TOTAL TIME _______________________________________ SIGNATURE _______________ ___________...

Страница 228: ......

Страница 229: ...ISTRY NO ____________ _________________________ TOTAL TIME _______________________________________ SIGNATURE _______________ _________________________ PYLON WHIRL NOTE Perform pylon whirl inspection f...

Страница 230: ......

Страница 231: ...TER CONSEQUENTLY PARTS THAT HAVE BEEN USED ON MILITARY HELICOPTERS SHOULD NOT BE USED ON COMMERCIAL HELICOPTERS CAUTION OVERHAUL SCHEDULE FOR SOME KIT COMPONENTS AND OR PARTS IS NOT COVERED IN THIS SC...

Страница 232: ...Assembly 206 040 002 007 3000 hours Transmission without electrical chip detector 206 040 002 005 013 and 015 1200 hours Transmission with electrical chip detector 206 040 002 005 013 and 015 2400 ho...

Страница 233: ...Servo Actuator 206 076 031 013 015 017 021 023 107 and 109 3600 hours Hydraulic Servo Actuator HR41103650 007 and 009 2400 hours Hydraulic Servo Actuator HR41103750 002 003 007 009 and 017 2400 hours...

Страница 234: ...creased to 2400 hours provided main rotor yoke 206 011 149 105 is installed The overhaul interval of 206 040 400 and 206 961 401 tail rotor gearbox assembly may be increased to 6000 hours with indicat...

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