MD Helicopters CSP-900RMM-2, Servicing And Maintenance

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CSP − 900RMM − 2 MD Helicopters, Inc.
Rotorcraft Maintenance Manual
Page 223
Revision 34
05-50-00
Table 204. Anti − Torque Fan Sudden Stoppage, Conditional Inspection
Registration No. Serial No. Helicopter Total Hours
Model Requirement
Ref. RMM
Section
Initial
Fuselage
900 Remove and examine anti − torque fan inlet screen assembly for
damage or deformation.
53 − 30 − 00
900 Examine upper inlet duct assembly (T240):
Examine inlet screen assembly fastener holes and nutplates for
damage and correct installation
Examine for FOD damage
06 − 00 − 00
53 − 30 − 00
900 Examine anti − torque fan mounting frames and adjacent structural
components for deformation and separation of riveted joints.
53 − 20 − 00
900 Examine fan support for impact damage, deformation, and correct
installation.
53 − 20 − 00
900 Examine interior of tailboom for FOD damage. 53 − 40 − 00
Transmission and Drive System
900 Remove and examine anti − torque fan drive shaft assembly:
Examine center section for damage and deformation
Examine flanges for deformation, elongation of fastener holes, and
installation of nutplates
Examine flexible couplings for cracks and deformation of
diaphragms
Examine flange of transmission output pinion assembly for
deformation and elongation of fastener holes
63 − 10 − 00
If anti − torque fan drive shaft shows signs of movement at flanges and/or damage which makes the
component unserviceable
900 Remove and examine input drive shaft assemblies:
Examine center section for damage and deformation
Examine flanges for deformation, elongation of fastener holes, and
correct installation of the nutplates
Examine flexible couplings for cracks and deformation of
diaphragms
Examine flange of transmission input pinion assembly for
deformation and elongation of fastener holes
63 − 10 − 00
900 Remove and examine cooling blower impellers:
Examine hub for damage and deformation
Examine drive key and drive key slot in impeller hub for signs of
movement (shearing)
63 − 21 − 00
900 Remove and examine transmission installation hardware. 63 − 20 − 00