Textron Bell 412, Maintenance Manual

Page: 240 / 288

BHT-412-MM-2
5-00-00
Page 192
Rev. 16 26 FEB 2013 Export Classification C, ECCN EAR99
(9) Tail rotor driveshafts
(10) Tail rotor driveshaft hangers
(11) Swashplate and support assembly
(12) Hub and sleeve assembly and collective lever
(13) Helicopter structure directly supporting damaged
components identified in above inspections
c. Check all cowling and doors for proper fit and
alignment. Remove cowling and inspect all attachment fittings.
NOTE
If significant damage has been found in any area of
the airframe, expand inspection in those areas until
no further damage is found.
d. Using a 10X magnifying glass, make a complete
inspection of pylon support structure for loose or sheared
rivets, cracked brackets, buckled or cracked support angles,
and webs. Pay particular attention to pylon mounts attaching
points.
e. Make a complete inspection of lift link, lift link
attachment fittings, and lift beam for cracks and other evidence
of damage. Remove lift link and replace with like serviceable
item, if damaged.
f. Remove both pylon dampers. Disassemble and check
for internal yielding. Assemble and install if no evidence of
damage. If any damage is found, replace with like serviceable
item.
g. Install serviceable mast, transmission assembly, and
main driveshaft assembly. Install removed pylon control
components.
h. Check all engine mount fittings and bolts for damage
and looseness.
CONDITIONAL INSPECTIONS
5-37. AFTER HARD LANDING (CONT)
DATA REFERENCE INSPECTION TASK DESCRIPTION
INITIAL
MECH OTHER