MD Helicopters 369 Series, Manual

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CSP−HMI−2
MD Helicopters, Inc
.
MAINTENANCE MANUAL
05−20−00
Page 7
Revision 39
Form HOE005 (Rev 5/04)
Table 1. 100 − Hour or Annual Inspection (Cont.)
Registration No. Serial No.
Helicopter Hours Torque Events
Model Initial Chap/Sect Requirement
ALL Overrunning clutch for:
*
Evidence of oil leakage.
* Proper operation: turn rotor in forward direction by hand − engine must
decouple; turn rotor in reverse direction − engine must rotate (listen for
turbine noise during reverse rotation). Rotor brake disc should not drag.
63
NOTE: Normal seal drag may be sufficient to rotate engine at low rpm.
369D/E/FF
500N
For aircraft equipped with 369A5350 overrunning clutch, regrease clutch
splines.
63
ALL Engine − to − main transmission drive shaft couplings and shaft for condition and
security of attachment.
Bendix couplings only: inspect shaft coupling diaphragms for scratches, nicks
or cracks (Ref. Main Transmission Drive Shaft Inspection (Bendix)).
63 − 10 − 00
500/600N * Main transmission − to − fan transmission drive shaft for dents, bulkhead
chafing and obvious damage.
*
Inter − Connect drive shaft for dents and obvious damage.
* Free movement of control rod thru interconnect drive shaft.
63
369D/E Bendix couplings only: Check tail rotor blade tip movement in excess of 0.75
inch, without main rotor blade movement, when tail rotor blades are rocked
back and forth in plane of rotation.
63
369D/E/FF Tail rotor drive shaft for:
* Evidence of buckling, dents, bulkhead chafing and obvious damage.
* Align aft coupling index stripe with corresponding tail rotor transmission
stripe and verify that bulkhead − to − drive shaft index stripes align (Ref. Tail
Rotor Drive Shaft Twist Inspection).
63 − 15 − 10
ANTI − TORQUE
Tail Rotor System
369D/E/FF Tail rotor transmission for:
* Corrosion, excessive oil leakage, cracks and other damage.
* Check torque of mounting nuts (also tailboom extension hardware on
369FF helicopters) (Ref. Tail Rotor Transmission Installation).
63 − 25 − 10
369D/E/FF Tail rotor and pitch control assembly for:
* Binding and unusual sounds (teeter blades to check for binding).
* Control rod, pitch control links, hub and drive fork for play or damage.
* Boots for installation and deterioration.
* Retaining nut and lockwasher secure (no broken tangs noted and nut
has not rotated, visual inspection of torque stripe).
*
Pitch control for evidence of seal rotation or loss of grease.
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