BHT-206L3-MM-1
5-00-00
Page 164 Rev. 19 1 JUN 2012
ECCN EAR99
BHT-206L-CR&O i. Inspect transmission restraint and transmission mount
system for condition, and fuselage attachment points for cracks.
BHT-206L-CR&O j. Inspect engine mounts at fuselage attachment points
for cracks.
If a tail rotor driveshaft failed as a result of torsional
overload, ALL hangers, driveshaft, adapters,
impellers, and disc couplings shall be considered
unserviceable and scrapped. Inspect hanger
attachment points for cracks and distortion. Overhaul
tail rotor gearbox to ensure airworthiness.
If a tail rotor driveshaft has been damaged by main
rotor strike or damaged other than torsional
overload, ALL bonded tail rotor driveshafts, plus the
hanger assemblies, adapters, and disc couplings
fore and aft of the damaged area shall be considered
unserviceable and scrapped. Inspect remaining
hanger assemblies, adapters, and disc couplings
according to step l and step m. Inspect hanger
attachment points for cracks and distortion.
BHT-206L-CR&O k. Inspect tail rotor driveshafts for out-of-round condition,
and distortion or bowing exceeding the limits specified. If any
defect is detected, scrap ALL bonded tail rotor driveshafts.
l. Inspect steel tail rotor drive shaft and steel adapters for
cracks using magnetic particle inspection method.
BHT-ALL-SPM m. Inspect tail rotor driveshaft hangers, and disc couplings
and aluminum driveshaft adapters using fluorescent penetrant
inspection method.
4. In addition to step 3, substep k through substep m, and
related notes, all bonded tail rotor driveshafts shall be
considered unserviceable and scrapped, if during a sudden
stoppage/acceleration inspection any of the following conditions
which are attributable to the sudden stoppage/acceleration are
noted:
a. Any impact damage to a main rotor blade leading or
lower skin, or any main rotor blade skin buckling or tears.
5-54. SUDDEN STOPPAGE/ACCELERATION (CONT)
DATA REFERENCE INSPECTION TASK DESCRIPTION
INITIAL
MECH OTHER
To Next Page
Loading...