Textron Bell 412, Руководство по обслуживанию

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BHT-412-MM-2
5-00-00
Page 190
Rev. 16 26 FEB 2013 Export Classification C, ECCN EAR99
Chapter 32 c. Perform landing gear deflection check.
(1) If crosstubes have yielded, remove landing gear
and inspect support and attaching structure for signs of yielding
or other damage. Replace yielded crosstube and aft crosstube
support beam pivot bolt.
(2) If supports and attaching structure are not
damaged, replace damaged landing gear components.
d. Remove mast adapter lower cone and inspect lower
cone seat for damage.
e. Inspect area around pylon mounts for loose rivets or
other damage.
f. Inspect tailboom and fuselage attachment for loose
rivets, cracks, or other damage.
g. If no damage other than yielded landing gear
crosstubes has been found at this point, a true hard landing
probably did not occur. Complete a 25 hour inspection and
return helicopter to flight status provided no further evidence of
damage is found.
h. If damage is more extensive than landing gear
crosstube yielding, a hard landing has occurred. Comply with
requirements of step 2 through step 4.
2. If a hard landing has occurred, the following steps shall be
accomplished:
BHT-412-CR&O a. Remove and perform an overhaul evaluation
inspection of following components:
(1) Mast assembly.
CONDITIONAL INSPECTIONS
5-37. AFTER HARD LANDING (CONT)
DATA REFERENCE INSPECTION TASK DESCRIPTION
INITIAL
MECH OTHER