Textron Bell 412, Maintenance Manual

Page: 210 / 288

BHT-412-MM-2
5-00-00
Page 162
Rev. 16 26 FEB 2013 Export Classification C, ECCN EAR99
j. Inspect seal housing for damage that could cause
leakage of lubricant.
k. Inspect end plate for damage that could cause leakage
of lubricant.
BHT-412-CR&O 3. Assemble and lubricate intermediate gearbox output quill
coupling.
Chapter 65 HANGER ASSEMBLIES
1. Visually examine exterior surfaces of hanger assembly and
adjacent area surfaces for evidence of grease leakage.
NOTE
Refer to the BHT-412-CR&O for disassembly,
cleaning, assembly, inspection procedures, and wear
and damage limits.
BHT-412-CR&O 2. Clean external surfaces of hanger assembly.
3. Visually inspect hanger assembly as follows:
a. Inspect hanger for evidence of wear, dents, enlarged
mounting slots, fretting, or corrosion.
WARNING
CAUSE OF ANY DISCOLORATION SHALL BE
DETERMINED AND CORRECTED PRIOR TO
NEXT FLIGHT.
b. Inspect hanger exterior surfaces for discoloration and
overheat condition. A change in color indicates a possible
overheat condition and/or component degradation. The cause
of exterior surface discoloration shall be determined and
corrected prior to continued operation.
SPECIAL INSPECTIONS
5-31. EACH 2500 HOURS OF TAIL ROTOR DRIVE SYSTEM OPERATION (CONT)
DATA REFERENCE INSPECTION TASK DESCRIPTION
INITIAL
MECH OTHER