MD Helicopters MD Explorer - Page 192

CSP−900RMM−2 MD Helicopters, Inc.
Rotorcraft Maintenance Manual
Page 238
Revision 34
05-50-00
Table 208. Transmission and Drive System Overtorque (900 CONFIG), Conditional Inspection.
Both Engines Operative, 8% Maximum Engine Torque Differential (Cont.)
Registration No. Serial No. Helicopter Total Hours
Model Initial
Ref. RMM
Section
Requirement
Averaged Input Above 140%
900 Replace main rotor drive shaft, drive plate, drive plate cover, and
related fasteners.
63−10−00
900 Remove and examine anti−torque fan drive shaft, do not disassemble
drive shaft assembly:
 Examine coupling to shaft interface for damage or cracking.
 Examine fastener holes for corrosion, elongation, and fretting.
 Replace if a discrepancy is found.
63−10−00
900 Examine anti−torque fan input flange for corrosion, hole elongation,
and fretting. Replace if a discrepancy is found.
64−30−00
900 Replace all anti−torque driveshaft fasteners. 63−10−00
900 Replace transmission, all acoustic isolators, and related fasteners. 63−20−00
900 If not replaced by single engine torque value, examine input drive
shaft assemblies and fasteners for condition and installation. Make
sure the torque is correct.
63−10−00
After Inspection
Touch−up all damaged paint and exterior markings, as necessary.
Rotorcraft must not be moved or flown unless cockpit floor, cabin floor, and bag-
gage floor panels are correctly installed. These are stressed panels.
CAUTION
Install all floor and access panels, covers, and trim panels removed or opened for inspection. Do a
check for closure, fit, and tightness. Make sure all loose equipment has been correctly put in
storage.
Do a check of all fluid levels. Fill fluid levels that are low. Make sure the filler caps are correctly
installed and are not loose.
Post Inspection Run−Up (If Applicable)
Ref. the latest revision of the applicable RFM for cockpit check and engine start procedures.