TM 55-1520-240-PM
PHASE NO. _____
Area Name and No.
Aircraft Serial No.
Date
FORWARD ROTOR, CROWN, AND
TUNNEL, AREA #7
Inspect
Phase
Nos
Inspection Requirements
Status
Faults and/or Remarks
Action Taken
Initial
ALL/C
7.23 Forward transmission upper cover,
mount lugs, mounting hardware, and
adjacent structure for security, buckling,
cracks, and corrosion. Transmission
torque box structure for twisting,
buckling, cracks, damage, and loose or
missing rivets. Access 30, 72
ALL/C
7.24 Upper boost servocylinders
for leaks and security, chafing or
interference with adjacent structure
components. Support fittings for
wear, damage, and cracks. Adjacent
structure for cracks, buckling, and
loose or missing rivets. Bearings and
bushings for condition, radial and axial
play.
ALL/C
7.25 Drive arms and collar for excessive
wear at hinge points. Bearings for
frayed or unbonded liners. Access 30,
72
ALL
7.26 Forward transmission oil cooler
mount flanges for cracks. Hardware for
security. Access 30, 72
"FOD REMINDER"
Check work area for tools and parts after completion of maintenance and inspection.
2-49