TM 1-1520-238-PM
2–81
C1
PHASE NO.
Date
Aircraft Serial No.
Area Name and No.
AFT EQUIPMENT BAY – 11
Inspect
Phase
Nos.
Initial
Action Taken
Faults and/or Remarks
Status
Inspection Requirements
ALL
15.
Tail rotor drive shafts and couplings for
cracks, dents, distortion, or corrosion.
C
Balancing tapes for security if externally
mounted.
Access L325, T250L, T290L, T250R,
T290R – forward catwalk removed for
access.
ALL
16.
Tail rotor drive shaft and coupling bolts
for proper installation.
C
Access L325, T250L, T290L, T250R,
T290R
ALL
17.
Tail rotor drive shaft forward hanger for
cracks, corrosion, mounting security,
C
and for radial looseness and smooth
operation. Hanger bearing for smooth
rotation. Drive shaft forward hanger
bearing support for torque of attaching
bolts. Check center nut for torque stripe.
Access L325, T250L, T290L, T250R, T290R
ALL
17a. Perform nutation check on forward hanger
bearing.
C
“FOD REMINDER”
Check work area for tools and parts after completion of maintenance and inspection.
