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AFS-BH430-IBF-ICA

Aerospace

Filtration Systems, Inc.

Revision: B

Proprietary Information

Use or disclosure of this material is subject

26

AFS Bell 230 and 430 IBF

to the restrictions on the title page

Instructions for Continued Airworthiness

aid to help maintenance personnel and pilots to ascertain the current condition or trend
accumulation of dirt on the Filter Assembly.

d.

Actuator - The Actuator is an electro-mechanical device that provides mechanical actuation of
the Bypass Door when the cockpit switch is pushed to open or close the bypass door. The
construction details of the component do not warrant field maintenance. Repair of this
component requires the component to be sent back to AFS for disposition or replacement.

e.

Wiring, Wiring Harness, Connectors, Backshells, Circuit Breaker – The wiring and wiring
harness utilizes wire per Military Specification Mil-W-22759/41. The gauge and marking
identification is specified on the wiring diagram. The connectors, backshells, and circuit
breaker are military specification components, or where applicable, vendor designed
components. The construction details of these components (other than wiring) do not warrant
field maintenance.

8.3

FILTER ASSY / FILTER SEAL

(Refer to Appendix A, Figure A-10 & 11)

8.3.1

FORWARD FILTER ASSY

8.3.1.1

Removal – Filter Assy

CAUTION

UPON REMOVAL OF THE FILTER ASSEMBLY, COVER THE ENGINE
INLET TO ENSURE IT IS PROTECTED FROM FOREIGN OBJECT
DAMAGE (FOD).

a.

Remove the L/H or R/H Air Inlet Cowl whichever is applicable.

b.

Disconnect the electrical connector from the Differential Pressure Switch.

c.

Disconnect the hose assembly from the fitting located on the firewall flange.

d.

Remove the Air Intake Plenum.

e.

Remove the five (5) captive fasteners securing the Forward Filter Assembly to the Upper Filter
Assembly.

f.

Remove the five (5) captive fasteners securing the Forward Filter Assembly to the Structural
Assembly and Support Bracket.

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Summary of Contents for AFS-BH430-IBF-ICA

Page 1: ...e perform display or disclose these technical data are restricted to the purpose of evaluating AFS s design for FAA commercial certification and airworthiness consideration only Any reproduction of technical data or portions thereof marked with this legend or referring to this legend must also reproduce the markings and legend Any person other than the Government who has been provided access to su...

Page 2: ...data excluding Chapter 4 Airworthiness Limitations are proprietary to Aerospace Filtration Systems Inc Disclosure reproduction or use of these data for any purpose other than helicopter operation and or maintenance is forbidden without prior written authorization from Aerospace Filtration Systems Inc EFFECTIVITY Effectivity for this ICA is for all Bell model 230 and 430 helicopters with the Aerosp...

Page 3: ......

Page 4: ...itle page Instructions for Continued Airworthiness iii LOG OF REVISIONS Revision No Revision Description Release Date IR Initial Release 11 26 08 A Changed 106114 201 to 118265 201 and 104441 201 to 104441 203 associated with these changes are the tables in sections 8 5 2 5 8 5 3 7 and Appendix A 8 24 09 B Added Bell 230 to applicability changed logo and address on cover page 4 19 11 ...

Page 5: ...ERVIEW 5 2 AIRWORTHINESS LIMITATIONS 8 2 1 FAA APPROVAL BLOCK 8 2 2 GENERAL 9 2 3 FILTER RETIREMENT LIFE 9 2 4 LIFE LIMITED COMPONENTS 9 3 INSPECTION REQUIREMENTS AND OVERHAUL 10 3 1 INSPECTION REQUIREMENTS 10 3 2 GENERAL REQUIREMENTS 10 3 2 1 FILTER ASSEMBLY INSPECTION 10 3 2 2 STRUCTURAL COMPONENT INSPECTIONS 11 3 2 3 SYSTEMS AND ELECTRICAL COMPONENT INSPECTIONS 11 3 2 4 IBF BYPASS COCKPIT SWITC...

Page 6: ...25 8 2 1 FILTER ASSY FILTER SEAL 25 8 2 2 STRUCTURAL COMPONENTS 25 8 2 3 SYSTEMS AND ELECTRICAL COMPONENTS 25 8 3 FILTER ASSY FILTER SEAL 26 8 3 1 FORWARD FILTER ASSY 26 8 3 2 UPPER FILTER ASSY 30 8 3 3 FILTER SEALS 31 8 4 STRUCTURAL COMPONENTS 33 8 4 1 BYPASS STRUCTURAL ASSY 33 8 5 SYSTEMS AND ELECTRICAL COMPONENTS 36 8 5 1 COCKPIT SWITCH INDICATOR 36 8 5 2 DIFFERENTIAL PRESSURE SWITCH 37 8 5 3 F...

Page 7: ...e 3 Circuit Breaker 17 Picture 4 Oiling Filter Media 22 Picture 5 Hand Seamer Used to Straighten or Crimp Pleats 28 Picture 6 Test Setup with Manometer 40 Table of Tables Table 1 Inspection Intervals 14 Table 2 Protective Treatment for Components 48 Table 3 Troubleshooting Guide 49 Table 4 Consumable Materials Supplies and Protective Treatment Specifications 50 Table of Figures Figure 1 IBF System...

Page 8: ...on Systems Inc Revision B Proprietary Information Use or disclosure of this material is subject AFS Bell 230 and 430 IBF to the restrictions on the title page Instructions for Continued Airworthiness vii THIS PAGE INTENTIONALLY LEFT BLANK ...

Page 9: ... MANUAL The instructions that are given in this manual and those that have been changed by revisions bulletins and or alerts issued by AFS Bell or the Airworthiness Directives issued by the local Aviation Authority shall be strictly followed 1 3 DEFINITIONS TERMINOLOGY Actuator An electromechanical actuator used to open close the bypass door Air induction screen Screen installed in the engine inle...

Page 10: ...formulated oil that forms a tack barrier that increases the capture efficiency of the filter Filter assembly Filter media supported by pleated stainless steel screen on both sides and the filter assembly frame components around the perimeter of the filter media Filter assembly frame Structure that frames retains and seals the outside edges of the filter media Filter downstream side Clean side of t...

Page 11: ...ervice cycle Period starting when a filter is cleaned oiled and placed into service and ending when the filter is removed for its next cleaning and oiling 1 4 ACRONYMS AFS Aerospace Filtration Systems Inc FAR Federal Aviation Regulation FMA Filter Maintenance Aid FMS Flight Manual Supplement FOD Foreign Object Damage IBF Inlet Barrier Filter ICA Instructions for Continued Airworthiness IP Installa...

Page 12: ...E INSTRUCTIONS THAT ARE GIVEN IN A CAUTION YOU CAN CAUSE DAMAGE TO THE HELICOPTER OR TO THE COMPONENTS NOTE A note includes supplemental data about the procedure the practice the condition etc for the maintenance task 1 6 UNITS OF MEASURE U S Standard units of measure have been used in preparation of this manual Typical units used in this manual include inches of water measuring differential press...

Page 13: ...iency without degrading engine performance The AFS IBF system provides dust separation efficiencies exceeding 99 for Society of Automotive Engineers SAE AC Coarse and AC Fine dust as defined in specification SAE J726 Air Cleaner Test Code b The IBF system does not interfere with any of the commercial items installed in the Bell 230 and 430 production aircraft The IBF is a complete system in which ...

Page 14: ... R H Plenum Assy which can be viewed by opening the inspection door on the Air Intake Cowling displays the maximum differential pressure across the filter reached during the last flight It is accessible only on the ground providing the pilot or mechanic the ability to visually gauge the current condition of the filter This gives the mechanic the ability to forecast the timing of the next service c...

Page 15: ...tion Systems Inc Revision B Proprietary Information Use or disclosure of this material is subject 7 AFS Bell 230 and 430 IBF to the restrictions on the title page Instructions for Continued Airworthiness Figure 1 IBF System Installation ...

Page 16: ... and 430 IBF to the restrictions on the title page Instructions for Continued Airworthiness 2 AIRWORTHINESS LIMITATIONS 2 1 FAA APPROVAL BLOCK The Airworthiness Limitations Section is FAA approved and specifies maintenance required under Secs 43 16 and 91 403 of the Federal Aviation Regulations unless an alternative program has been FAA approved ...

Page 17: ...t constitute a warranty of any kind The only warranty applicable to any component is the warranty included in the Purchase Agreement for the helicopter or the component 2 3 FILTER RETIREMENT LIFE After fifteen 15 cleaning and oiling cycles the filter must be removed from service at the next servicing interval The filter data tag is scribed after each cleaning and oiling cycle see Section 6 2 When ...

Page 18: ...mary kit components Refer to Figures A 2 through A 9 for structural details Refer to Figure A 12 for electrical components c Table 1 gives a recommended inspection schedule for the components of the system The Trouble Shooting Guide Table 3 found near the end of Chapter 8 also gives additional guidance when performing inspections and encountering trouble with the system Chapter 8 also provides spe...

Page 19: ... or to gage the trend in accumulation of dirt The FMA check is only a check of the indicator reading See Picture 1 As such it is not considered an inspection of the FMA The inspection Table 1 does not require a specific inspection interval of the FMA The condition of the Filter Assembly and its accumulation of dirt will show up as an indication on the FMA Thus operational environment more so than ...

Page 20: ...formed every 100 hours See Table 1 Perform the function check as follows 1 With aircraft power ON push the IBF BYPASS switch in the BYPASS light should illuminate and the bypass door should open visually verify this has happened 2 Push the IBF BYPASS switch in and the BYPASS light should go out and the bypass door should close visually verify this has happened Turn aircraft power OFF If conditions...

Page 21: ...ge Instructions for Continued Airworthiness Picture 1 FMA Operation Figure 2 FMA Reset Location GREEN Zone YELLOW RESET Button RED Zone YELLOW Indicator YELLOW Indicator position relative to SAFE OPERATING ZONE GREEN Zone or SERVICE FILTER RED Zone markings defines current filter condition and pushing YELLOW RESET Button resets indicator Open the inspection door to locate the FMA mounted inside ...

Page 22: ... specific inspection requirements and functional check procedures 2 Refer to Chapter 4 for access information 3 IBF FILTER light or failed PAC This inspection is required any time an IBF FILTER light indication or failed PAC is reported by the pilot 4 Reference Appendix A Illustrated Parts Breakdown 5 Reference Trouble Shooting Guide Table 3 of this manual 6 Perform a visual inspection checking fo...

Page 23: ...icing requires removal of the L H and R H Air Inlet Cowl and the L H and R H Air Intake Plenum to gain access to the filter assemblies The filter assemblies must be removed for servicing See Chapter 8 for filter assembly removal installation procedures and Chapter 7 for filter servicing procedures 4 3 ACCESS FOR MAINTENANCE Access for maintenance of the system components requires removal of the L ...

Page 24: ...AGE CAUTION NEVER INSTALL A FILTER ASSEMBLY AND OR OPERATE AN AIRCRAFT WITH A FILTER INSTALLED WHERE THE FILTER MEDIA HAS NOT BEEN PROPERLY OILED Long term storage has no effect on filter assembly reliability if stored unoiled dry in a cool dry location to discourage possible fungus growth After storage the only maintenance to be performed on the filter before installation on the aircraft is oilin...

Page 25: ...on the serviceability tag see Figure 3 When the last unmarked box is crossed through the filter assembly will have to be replaced at the next servicing See Chapter 7 for servicing procedures Figure 3 Example of Filter Assembly Data Plate 6 3 PLACARDS MARKINGS COCKPIT a The IBF utilizes two cockpit switch indicators labeled IBF 1 and IBF 2 on the aircraft instrument panel The upper segment illumina...

Page 26: ...cleanings under any conditions is 300 flight hours or 1 year TIS whichever comes first Up to the TIS limit the filter is considered an on condition item For consistent performance AFS recommends that all Filter Assemblies be serviced at the same time NOTE The FMA is an aid to help maintenance personnel and pilots to ascertain the condition of the filter at any point in time or to trend the accumul...

Page 27: ...ure as the filters accumulate dirt in operations considered prepared fields operations Once an interval of time in flight hours is determined that provide discrete changes in the FMA this interval can be repeated as long as there is no change in the environmental operating conditions b This interval can be extended after sufficient flight data has been accumulated to establish a greater interval U...

Page 28: ...NG SOLUTIONS CAUTION DO NOT STEAM CLEAN OR USE HIGH PRESSURE WASHERS TO CLEAN THE AFS FILTER ASSEMBLY CAUTION ANY OF THESE PROCESSES WILL DAMAGE THE FILTER MEDIA AND OR THE FILTER FRAMES a Spray AFS approved Air Filter Cleaner liberally onto the entire filter media both sides until the filter media is thoroughly soaked If procured in bulk transfer a smaller quantity to a spray bottle A spray bottl...

Page 29: ...MPRESSED AIR TO DRY THE FILTER ASSEMBLY IT MAY DAMAGE THE FILTER MEDIA CAUTION DO NOT USE HEAT FROM ANY SOURCE TO DRY THE AFS FILTER ASSEMBLY HEAT MAY SHRINK THE FILTER MEDIA AND MAY DAMAGE THE CORING MATERIAL WITHIN THE FILTER FRAMES a After rinsing shake off the excess water and let the Filter Assembly dry at room or outside air temperature above freezing b Ensure dirt or debris does not enter o...

Page 30: ...tle allows for the controlled application of a specific amount of oil to the filter See Picture 4 b Apply approximately of the 6 5 or 9 fluid ounces 6 5 oz on the forward filter and 9 oz on the upper filter that is to be applied to a clean dried Filter Assembly Gently squeeze a small stream of oil along the entire length of each pleat peak then flip the filter over and repeat this on the backside ...

Page 31: ...uring the last flight and should be reset after servicing of the filter assembly by depressing the yellow button marked PUSH TO RESET located on the end of the filter maintenance aid See Picture 1 Figure 2 7 6 ENGINE WATER WASH NOTE It is not necessary to remove the IBF filter prior to conducting an engine wash It is recommended the engine water wash frequency be in accordance with the current eng...

Page 32: ...moval inspection troubleshooting adjustment calibration and or repair and installation for the major components noted above as applicable to the particular component For some components a functional check is included Not all components will require adjustment or calibration or have any approved functional check or repair procedures Contact AFS for possible repairs when not listed in this manual In...

Page 33: ...nents mounting provisions for the upper and forward filter assemblies 8 2 3 SYSTEMS AND ELECTRICAL COMPONENTS Refer to Appendix A Figure A 12 a Cockpit Switch Indicator This switch serves a dual purpose it activates the bypass door as well as indicates that the filter is dirty The switch is a push button type used to open or close the bypass door The indicator is a split light that when the filter...

Page 34: ...y Specification Mil W 22759 41 The gauge and marking identification is specified on the wiring diagram The connectors backshells and circuit breaker are military specification components or where applicable vendor designed components The construction details of these components other than wiring do not warrant field maintenance 8 3 FILTER ASSY FILTER SEAL Refer to Appendix A Figure A 10 11 8 3 1 F...

Page 35: ...d or crimped with a hand seamer a Visually inspect the pleats on both sides of the filter If you cannot see the bottom of the pleat when sighting the length or depth of the pleat straightening of the pleat is required Refer to Adjustment for pleat straightening procedures b If this inspection is in response to an IBF FILTER light indication or failed PAC perform troubleshooting per Table 3 If trou...

Page 36: ...aightened See Picture 5 b Once one side is crimped flip the filter over and crimp the other side as required following the guidance above Use caution not to crush the pleats when straightening them Use care to maintain the original radius as much as possible at the top of the pleat Picture 5 Hand Seamer Used to Straighten or Crimp Pleats 8 3 1 5 Calibration Not applicable 8 3 1 6 Repair Filter Med...

Page 37: ...er to remove loose material wire or cotton gauze d Seal the affected area using two part Sealant AMS 3276 or MIL S 8802 Allow the Sealant to bleed into the filter material and cure Follow manufacturer s directions for proper mixing application and curing of the two part Sealant e Proceed with oiling the filter Refer to Chapter 7 8 3 1 8 Repair Filter Media Large Ruptures Tears or Holes Larger rupt...

Page 38: ...connect the electrical connector from the Differential Pressure Switch i Disconnect the hose assembly from the fitting located on the firewall flange j Remove the Air Intake Plenum k Remove the Forward Filter Assembly See Section 8 3 1 1 l Remove the six 6 NAS6203 3 bolts and NAS620 10 washers securing the Upper Filter Assembly to the firewall 8 3 2 2 Inspection Filter Assy See Section 8 3 1 2 8 3...

Page 39: ... Bypass Structural Assembly and the Filter Support b Install the ten 10 captive fasteners securing the Filter Assembly to the Upper Filter Assembly the Bypass Structural Assembly and the Filter Support 8 3 3 FILTER SEALS 8 3 3 1 Removal Forward Filter Assembly a Gain access to the Filter Seal by removing the Filter Assembly Refer to Section 8 3 1 1 b Remove the twenty one 21 MS27039 bolts that tha...

Page 40: ...ESIVE VAPORS IN SEALANT SUCH AS RTV 736 MAY CAUSE IRRITATION OF EYES NOSE AND RESPIRATORY SYSTEM EYE AND SKIN CONTACT WITH MATERIAL MAY CAUSE IRRITATION IF INGESTED MAY CAUSE GASTRIC DISTRESS FLUSH EYES WITH WATER FOR 15 MINUTES WASH SKIN WITH SOAP AND WATER IF INHALED MOVE TO FRESH AIR IN ALL CASES GET IMMEDIATE MEDICAL ATTENTION WORK IN A WELL VENTILATED AREA WEAR GLOVES AND SAFETY GLASSES a Sma...

Page 41: ... in place using Dow Corning RTV 736 or equivalent Inboard Seal b To install the Seal clean surface of Filter Frame locate and bond Seal in place using Dow Corning RTV 736 or equivalent Outboard Seal c To install the Seal clean surface of Outboard Bracket locate and bond Seal in place using Dow Corning RTV 736 or equivalent d Locate the retainer on the Seal e Install the eight 8 MS27039 bolts that ...

Page 42: ...l flange n Remove the five NAS6203 bolts and NAS1149D0363J washers securing the Bypass Structural Assembly to the aft section of the firewall 8 4 1 2 Inspection a Cracking Visually inspect the Bypass Structural Assembly and related parts for cracking using 10x magnifications at the corners radii and transitions in part thickness Any fretting of faying surfaces such as those at a crack may emit a b...

Page 43: ...Installation a Install five NAS6203 bolts and NAS1149D0363J washers to secure the Bypass Structural Assembly to the aft section of the firewall b Install the two NASM3H4A bolts NAS1149D0316J washers and MS21042L3 nuts to secure the lower angled bracket to the lower firewall flange c Install four MS27039 0808 screws and NAS1149DN832J washers to secure the Bypass Structural Assembly to the upper fir...

Page 44: ...anel e Slide Cockpit Switch Indicator out of panel f Tag and secure wiring 8 5 1 2 Inspection a Inspect Cockpit Switch Indicator for proper functioning Refer to Section 8 5 2 5 and to Table 3 for troubleshooting b Inspect Cockpit Indicator for security damage overheating corrosion or distortion Replace defective component or contact AFS for disposition 8 5 1 3 Troubleshooting See Table 3 for troub...

Page 45: ...ifferential Pressure Switch function check per Section 8 5 2 5 b Verify Cockpit Switch Indicator FILTER amber light illuminates 8 5 1 7 Installation a Slide Cockpit Switch Indicator into panel opening in correct orientation b Open switch cover Turn lug turn clockwise to lock Cockpit Switch Indicator into panel c Attach connector at rear of Cockpit Switch Indicator d Perform Cockpit Switch Indicato...

Page 46: ...DURE INTRODUCES THE POSSIBILITY OF ENGINE FOD CAUTION IMPROPER USE OF THE ALTIMETER TEST SET COULD RESULT IN DAMAGE TO THE SWITCH AND OR SWITCH CALIBRATION CAUTION PULLING AN ALTITUDE OF GREATER THAN 1880 FEET ABOVE FIELD ELEVATION WILL DAMAGE THE DIFFERENTIAL PRESSURE SWITCH a Gain access to the DP low pressure static port below the Bypass Door b Connect the low pressure calibrator or altimeter t...

Page 47: ...ure Switch function is acceptable and the rest of the circuit is suspect Upon completion of testing ensure that aircraft electrical power is OFF Refer to Table 3 WARNING Applying a vacuum greater than 221 in H2O 8 psi may result in damaging the DP switch e This will functionally check both the differential pressure switch and the IBF FILTER Cockpit Indicator Figure 4 Test Equipment Setup Test Stat...

Page 48: ...ing whichever is applicable b Properly orient the Differential Pressure Switch in the Clamp c Attach hoses fittings and attaching hardware d Connect and secure connector e Perform Function Check of Differential Pressure Switch Refer to Section 8 5 2 5 8 5 3 FILTER MAINTENANCE AID Refer to Picture 1 Figure 2 and Appendix A Figures A 7 A 9 8 5 3 1 Removal a Gain access inside the L H or R H Air Inta...

Page 49: ...r of this component requires the component to be sent back to AFS for disposition or replacement 8 5 3 5 Adjustment The Filter Maintenance Aid is designed to hold the highest differential pressure across the filter assembly reached during the last flight and can be reset by depressing the yellow button marked PUSH TO RESET located on the end of the filter maintenance aid See Figure 2 8 5 3 6 Repai...

Page 50: ...ivalent altimeter test set vacuum system to the plenum tube assembly by slipping a piece of 3 16 inch ID vinyl tubing over the end of the tube assembly Ensure that the fit between the tubing and tube assembly is tight i e no leakage c Reset the Filter Maintenance Aid by depressing the yellow button marked PUSH TO RESET located on the end of the filter maintenance aid See Picture 1 d The maintenanc...

Page 51: ...age serviceability corrosion and security of installation b Inspect the connector for damage security corrosion and serviceability c Inspect the Bypass Door contact to the Bypass Door Seal The Seal should be evenly compressed to approximately 15 of its non compressed cross section with no visible gaps Use care not to damage the seal when checking for gaps compression of the Seal Refer to Adjustmen...

Page 52: ...e IBF BYPASS Cockpit Switch to the CLOSED position to retract the Bypass Door The Seal should be uniformly compressed approximately 15 of its non compressed cross section with no visible gaps Use care not to damage the seal when checking for gaps compression of the Seal Refer to Adjustments if Seal compression is discrepant f Repeat steps b through e until the Seal is compressed correctly g Perman...

Page 53: ...F BYPASS Cockpit Switch in and verify that the bypass door is closed d Perform seal compression inspection and verify the seal is uniformly compressed to approximately 15 of its non compressed cross section with no visible gaps around the perimeter of the bypass door e Ensure aircraft power is OFF f If conditions are not met refer to Troubleshooting guide Table 3 and Adjustment procedures Section ...

Page 54: ...ING HARNESS CONNECTORS BACKSHELLS CIRCUIT BREAKER RELAY Refer to Appendix A Figure A 12 8 5 5 1 Removal a Prepare aircraft for electrical system work by disconnecting the battery b Remove hardware clamps and spiral wrap from component as applicable Tag interfacing components for later installation Remove affected components 8 5 5 2 Inspection The IBF wiring wiring harness and associated components...

Page 55: ...are Connect wiring per wiring diagram Install clamps spiral wrap and heat shrink as applicable to affected components per AC 43 13 1 Chapter 11 8 6 FASTENER LISTING Refer to Appendix A Parts Figures for a listing of fasteners and their location 8 7 PROTECTIVE TREATMENT a The IBF system is composed primarily of aluminum alloy materials except for standard hardware components and fasteners and vendo...

Page 56: ...ting gouges must be less than 20 of part thickness See note 1 Alodine and Re apply Epoxy Primer Ref Table 4 Actuator Bracket Alum Alloy Sheet Stk Scratches pitting gouges must be less than 20 of part thickness See note 1 Alodine and Re apply Epoxy Primer Ref Table 4 Filter Maintenance Aid Bracket Alum Alloy Sheet Stk Inspect for Serviceability Alodine and Re apply Epoxy Primer Ref Table 4 Filter A...

Page 57: ...a 8 5 2 4 IBF Bypass door fails to close Actuator misrigged Faulty connector Faulty circuit Faulty cockpit switch Faulty actuator Check actuator rigging Check connectors to aircraft power cockpit switch and actuator Check circuit continuity and repair circuit Check switch continuity in CLOSED position repair or replace cockpit switch Replace actuator Para 8 5 4 Para 8 5 5 Para 8 5 5 Para 8 5 1 Par...

Page 58: ...s Aircraft Supply Part Number TP44 0 Offset Hand Seamer b Barfield or Equivalent Manufacturer Altimeter Test Set Required for Function Check of the Differential Pressure Switch and Filter Maintenance Aid 8 9 1 CONSUMABLE MATERIALS SUPPLIES AND PROTECTIVE TREATMENT SPECIFICATIONS Item Description Spec Part No Consumables 1 Sealant AMS 3276 2 Sealant Mil S 8802 3 Sealant RTV 736 Supplies 6 Air Filte...

Page 59: ...NTS Figure A 1 IBF A 2 Figure A 2 Bypass Structural Assy A 4 Figure A 3 Bypass Structural Sub Assy A 6 Figure A 4 Actuator Mechanism A 9 Figure A 5 Bypass Screen Assembly A 11 Figure A 6 Bypass Door Assembly A 13 Figure A 7 FMA Delta P Assembly A 15 Figure A 8 Differential Pressure Assembly A 17 Figure A 9 FMA Assembly A 19 Figure A 10 Upper Filter Assembly A 21 Figure A 11 Forward Filter Assembly...

Page 60: ...e Filtration Systems Inc Revision B Proprietary Information Use or disclosure of this material is subject AFS Bell 230 and 430 IBF to the restrictions on the title page Instructions for Continued Airworthiness A 2 Figure A 1 IBF ...

Page 61: ... for breakdown 1 P 4 118100 102 Assy Closeout Side See Figure A 2 for breakdown 1 P 5 118350 102 Assy Filter FWD See Figure A 11 for breakdown 1 P 6 118350 101 Assy Filter FWD See Figure A 11 for breakdown 1 P 7 118004 101 Kit Sensor IBF See Figure A 7 for breakdown 1 P 8 118360 101 Assy Support Filter FWD 1 P 9 118360 102 Assy Support Filter FWD 1 P 10 118400 101 Wire Harness 2 P 11 N A Assy FMA ...

Page 62: ...ision B Proprietary Information Use or disclosure of this material is subject AFS Bell 230 and 430 IBF to the restrictions on the title page Instructions for Continued Airworthiness A 4 Figure A 2 Bypass Structural Assy 118100 101 Shown 118100 102 opposite ...

Page 63: ...ER ASSY A V A I L FIGURE A 2 Bypass Structural Assy 118100 101 Assy Side Closeout REF 1 N A Bypass Screen Assy See Figure A 5 for breakdown 1 2 N A Bypass Structural Sub Assy See Figure A 3 for breakdown 1 3 N A Bypass Door Assy See Figure A 6 for breakdown 1 4 N A Actuator Mechanism See Figure A 4 for breakdown 1 5 118705 201 Pin 1 P AVAIL CODE DEFINITION P Procurable NP Non Procurable SP Normal ...

Page 64: ... Systems Inc Revision B Proprietary Information Use or disclosure of this material is subject AFS Bell 230 and 430 IBF to the restrictions on the title page Instructions for Continued Airworthiness A 6 Figure A 3 Bypass Structural Sub Assy ...

Page 65: ...201 Retainer Hinge Pin 1 SP 4 MS20470AD5 6 Rivet 1 SP 5 118111 201 Retainer Seal Door 1 P 6 MS20470AD3 5 5 Rivet 19 SP 7 MS20470AD4 5 Rivet 10 SP 8 NAS1097AD4 5 Rivet 1 P 9 118112 201 Retainer Seal Door 1 P 10 NAS1149DN332J Washer 23 SP 11 118115 201 Retainer Seal Door 1 P 12 118114 201 Retainer Seal Door 1 P 13 118116 201 Retainer Seal Door 1 P 14 118110 201 Retainer Seal Door 1 P 15 MS20470AD3 6...

Page 66: ...S6203 3 Bolt 1 SP 24 118104 201 Retainer Seal Closure 1 P 25 118261 201 Support Closure Side 90 Deg 1 P 26 MS20470AD4 5 Rivet 10 SP 27 NAS1097AD3 3 5 Rivet 8 SP 28 NAS1097AD3 5 Rivet 2 SP 29 118310 201 202 Seal Closeout INBD 1 P 30 118405 201 Bracket Disconnect Actuator 1 P 31 NAS1097AD3 4 Rivet 6 SP 32 118251 201 202 Support Actuator 1 P AVAIL CODE DEFINITION P Procurable NP Non Procurable SP Nor...

Page 67: ...tion Systems Inc Revision B Proprietary Information Use or disclosure of this material is subject AFS Bell 230 and 430 IBF to the restrictions on the title page Instructions for Continued Airworthiness A 9 Figure A 4 Actuator Mechanism ...

Page 68: ...ART NUMBER ITEM NAME UNIT PER ASSY A V A I L FIGURE A 4 Actuator Mechanism 118600 101 Actuator Mechanism REF 1 118113 201 Actuator 1 P 2 NAS6204 10D Bolt 2 SP 3 118605 201 Spacer Actuator Mechanism 1 P 4 NAS1149C0416R Washer 2 SP 5 NAS1149C0432R Washer 3 SP 6 NASM24665 235 Cotter Pin 2 SP 7 MS14144L4 Nut 2 SP AVAIL CODE DEFINITION P Procurable NP Non Procurable SP Normal stock procurable See intro...

Page 69: ...on B Proprietary Information Use or disclosure of this material is subject AFS Bell 230 and 430 IBF to the restrictions on the title page Instructions for Continued Airworthiness A 11 Figure A 5 Bypass Screen Assembly 118170 101 shown 118170 102 opposite 16X ...

Page 70: ...pass REF 1 118105 201 202 Screen Bypass 1 P 2 118118 201 Angle Screen LWR FWD 1 P 3 118119 201 Angle Screen LWR AFT 1 P 4 118120 201 Angle Screen UPR AFT 1 P 5 118121 201 Angle Screen UPR FWD 1 P 6 118161 201 Screen Trap Door P 7 118162 201 Spring Hinge 2 P 8 118163 201 Retainer Spring Screen 1 P 9 118164 201 Spacer Spring Hinge 1 P 10 A A55486 2212 Pin 1 P 11 MS20470AD3 3 5 Rivet 16 SP 12 MS20470...

Page 71: ...ision B Proprietary Information Use or disclosure of this material is subject AFS Bell 230 and 430 IBF to the restrictions on the title page Instructions for Continued Airworthiness A 13 Figure A 6 Bypass Door Assembly 118500 101 shown 118500 102 opposite ...

Page 72: ...NDEX NUMBER PART NUMBER ITEM NAME UNIT PER ASSY A V A I L FIGURE A 6 Bypass Door Assembly 118500 101 102 Assy Door Bypass REF P 1 118501 201 201 Door Bypass 1 P 2 118502 201 Hinge Half Bypass Door 1 P 3 118504 201 Support Actuator Door Attach 1 P 4 MS20470AD4 6 Rivet 8 SP 5 NAS1097AD4 5 Rivet 6 SP AVAIL CODE DEFINITION P Procurable NP Non Procurable SP Normal stock procurable See introduction on a...

Page 73: ...Inc Revision B Proprietary Information Use or disclosure of this material is subject AFS Bell 230 and 430 IBF to the restrictions on the title page Instructions for Continued Airworthiness A 15 Figure A 7 FMA Delta P Assembly R H shown L H opposite ...

Page 74: ...elta P Assy REF 1 See Fig A 9 Filter Maintenance Aid Assy 1 P 2 See Fig A 8 Differential Pressure Switch Assy 1 SP 3 0715 015 Tee Fitting 1 SP 4 CB3001CR3 16 Standoff 1 P 5 118245 101 Hose Assy 1 P 6 NAS6203 2 Bolt 1 SP 7 NAS1149D0363J Washer 3 SP 8 MS21919WDG7 Clamp 3 SP 9 118213 201 Hose 1 P 10 CB3001CR3 8 Standoff 2 P 11 NAS6203 1 Bolt 2 SP 12 3604 Hose Clamp 4 P 13 1537 Hose Adapter 1 P AVAIL ...

Page 75: ...ystems Inc Revision B Proprietary Information Use or disclosure of this material is subject AFS Bell 230 and 430 IBF to the restrictions on the title page Instructions for Continued Airworthiness A 17 Figure A 8 Differential Pressure Assembly ...

Page 76: ...ial Pressure Assy REF 1 118265 201 Delta P Sensor 1 P 2 118235 101 Assy Tube Delta p FWD 1 P 3 118202 201 202 Cover UPR Used on 118004 101 1 P 4 MS20426AD5 6 Rivet Used on 118004 101 5 SP 5 NAS1097AD3 5 Rivet Used on 118004 101 2 SP 6 NAS1149D0363J Washer 1 SP 7 NAS6203 3 Bolt 1 SP 8 MS21919WDG28 Clamp 1 SP 9 MS21059L3 Platenut Used on 118004 101 1 SP 10 CB3001CR3 8 Standoff Used on 118004 103 not...

Page 77: ...tration Systems Inc Revision B Proprietary Information Use or disclosure of this material is subject AFS Bell 230 and 430 IBF to the restrictions on the title page Instructions for Continued Airworthiness A 19 Figure A 9 FMA Assembly ...

Page 78: ...04 101 1 P 2 MS21059L3 Platenut Used on 118004 101 1 SP 3 MS20426AD5 6 Rivet Used on 118004 101 7 SP 4 NAS1097AD3 5 Rivet Used on 118004 101 10 SP 5 NAS1149D0363J Washer 3 SP 6 NAS6203 3 Bolt 3 SP 7 118207 201 Retainer 1 P 8 MS21061L3 Platenut 2 SP 9 118212 201 Cushion 2 P 10 118204 201 202 Mount Indicator Maintenance 1 P 11 NAS6203 2 Bolt 2 SP 12 NAS1149D0316J Washer 2 SP 13 104441 203 Filter Mai...

Page 79: ...sion B Proprietary Information Use or disclosure of this material is subject AFS Bell 230 and 430 IBF to the restrictions on the title page Instructions for Continued Airworthiness A 21 Figure A 10 Upper Filter Assembly 118300 101 shown 118300 102 opposite ...

Page 80: ...SY A V A I L FIGURE A 10 Upper Filter Assembly 118300 101 102 Assy Filter UPR 1 P 1 118390 101 102 Sub Assy Filter UPR 1 P 2 118309 201 202 Seal Top Filter INBD 1 P 3 118316 201 202 Seal Top Filter AFT 1 P 4 118308 201 202 Seal Top Filter OUTBD 1 P 5 118314 201 202 Strap Top Filter OUTBD 1 P 6 NAS620 10L Washer 8 SP 7 MS27039C0808 Bolt 8 SP AVAIL CODE DEFINITION P Procurable NP Non Procurable SP N...

Page 81: ...n B Proprietary Information Use or disclosure of this material is subject AFS Bell 230 and 430 IBF to the restrictions on the title page Instructions for Continued Airworthiness A 23 Figure A 11 Forward Filter Assembly 118350 101 shown 118350 102 opposite 10X ...

Page 82: ...ssy Filter FWD 1 P 1 118340 101 102 Sub Assy Filter FWD 1 P 2 WES7900 10 A 10 Captive Bolt 10 P 3 118366 201 Seal Filter FWD Corner 1 P 4 118365 201 Retainer Seal FWD Corner 1 P 5 NAS1149DN816J Washer 21 SP 6 MS27039C0809 Bolt 17 SP 7 118357 201 Retainer Seal Front Filter 1 P 8 118356 201 202 Seal Front Filter 1 P 9 MS21075L08N Platenut 21 SP 10 MS27039C0810 Bolt 4 SP 11 NAS1097AD3 4 Rivet Not Sho...

Page 83: ... A 25 Figure A 12 FMA Interface Assembly INDEX NUMBER PART NUMBER ITEM NAME UNIT PER ASSY A V A I L FIGURE A 12 FMA Interface Assy N A Assy FMA Interface 1 P 1 SS 400 61 4AN Bulkhead Fitting 1 P 2 118209 09 201 Support FMA Tube 1 P 3 118210 201 202 Tube FMA Inlet 1 P 4 MS35489 6 Grommet 1 P AVAIL CODE DEFINITION P Procurable NP Non Procurable SP Normal stock procurable See introduction on availabi...

Page 84: ...ms Inc Revision B Proprietary Information Use or disclosure of this material is subject AFS Bell 230 and 430 IBF to the restrictions on the title page Instructions for Continued Airworthiness A 26 Figure A 13 Electrical Installation and Schematic ...

Page 85: ...ectrical Installation and Schematic N A Electrical System IBF and Aircraft Interface REF 1 MS22073 3 Circuit Breaker 2 P 2 118401 202 Placard 2 P 3 118401 201 Placard 2 P 4 LED 42 15 KB 36066 Switch Indicator 2 P 5 18 200 Quick Connector 2 P 6 MS39029 22 192 Pin 20 P 7 D38999 20KA35SN Electrical Connector 2 P 8 M85049 38S9S Backshell 2 P 9 118400 101 Wire Harness 2 P AVAIL CODE DEFINITION P Procur...

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