BHT-407-MM-1
5-00-00
7 NOV 2006 Rev. 23
Page 69
2.
Do a visual inspection. If you do not find any damage, send
the freewheel assembly to an approved facility for overhaul.
Follow the special inspection instructions. Put a tag on the
freewheel assembly and write, “THIS FREEWHEEL
ASSEMBLY WAS REMOVED FROM SERVICE BECAUSE OF
A SUDDEN STOPPAGE.” During the overhaul, if the approved
facility finds that the sprag clutch assembly is damaged
(cracked or deformed sprag or cage), discard the outer shaft,
the inner shaft, and the sprag clutch assembly.
Chapter 65
TAIL ROTOR DRIVESHAFT ASSEMBLIES
1.
Examine the tail rotor driveshaft assemblies for condition.
2.
If the tail rotor driveshaft was damaged by a main rotor
strike or has damage other than the torsional overload, discard
the damaged segment assembly and the segment assemblies
forward-and-aft of the damaged driveshaft. Remove the
remaining hanger and bearing assemblies. Put tags on the
hanger and bearing assemblies and write, “THIS HANGER
AND BEARING ASSEMBLY WAS REMOVED FROM SERVICE
BECAUSE OF A SUDDEN STOPPAGE.” Send the hanger and
bearing assemblies to an approved facility for overhaul.
3.
If a tail rotor driveshaft fails because of a torsional load,
discard all of the tail rotor driveshaft assemblies, the forward
short shaft, the aft short shafts, and the fan shaft.
4.
If the visual inspection showed no sign of damage, the tail
rotor driveshaft assemblies are serviceable.
Chapter 65
OIL COOLER BLOWER IMPELLER
1.
Remove and examine the impeller for condition. If you find
any damage such as cracks and deformation, discard the
impeller, oil cooler blower driveshaft, forward and aft hangers,
forward and aft bearings, and the forward and aft disc packs.
2.
Examine the oil cooler blower housing for condition.
3.
If there is no damage, the oil cooler impeller is serviceable.
CONDITIONAL INSPECTIONS
5-29. SUDDEN STOPPAGE — TAIL ROTOR — POWER “ON” OR “OFF” (CONT)
DATA REFERENCE
INSPECTION TASK DESCRIPTION
INITIAL
MECH OTHER
