TM 1-1520-238-23
Change 7
3-5
SECTION I. MAIN LANDING GEAR MAINTENANCE
3.1.
MAIN LANDING GEAR INSPECTION
3.1.1. Description
This task covers:
Main Landing Gear. General (Fittings, Castings, Forgings).
3.1.2. Initial Setup
Tools:
Aircraft mechanic’s tool kit (item 376, App H)
Personnel Required:
67R
Attack Helicopter Repairer
References:
TM 1-1500-204-23
TM 1-1520-264-23
TM 55-2620-200-24
Equipment Conditions:
Ref
Condition
1.57
Helicopter safed
3.1.3. Main Landing Gear
a. Check components for damage and loose mounting.
b. Check for loose, missing, or damaged mounting hardware.
c. Check static ground cable for cracks, broken strands, wear, and looseness. No cracks allowed on upper
or lower terminal. Lower terminal may be worn to a minimum length of 1.00 INCH. Scratches and gouges to
0.030 INCH deep in lower terminal and 0.020 INCH deep in upper terminal are acceptable. Maximum of 25
percent broken strands of cable is acceptable.
d. Check trailing arms for cracks, looseness, or misalignment.
e. Check tires for tread damage or uneven wear (TM 55-2620-200-24).
f. Check wheels for cracks, deformation, or hub grease leakage.
g. Check eight bolt wheel assembly keys and key insert for damage and wear. If width is less than 0.842
INCH replace wheel assembly.
h. Check nine bolt wheel assembly keys and key insert for damage and wear. If width is less than 0.830
INCH replace wheel assembly.
i. Check squat switch and wiring for cracked, broken, or burned insulation. Check switch bracket and
target for looseness or misalignment.
j. Check shock struts for external fluid leakage and for rod end cracks, looseness, or misalignment
(TM 1-1500-204-23).
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