TM 1-1520-238-23
6-572
6.139.
TAIL ROTOR GEARBOX ACCELEROMETER REMOVAL/INSTALLATION
6.139.1. Description
This task covers:
Removal. Cleaning. Inspection. Installation.
6.139.2. Initial Setup
Tools:
Aircraft maintenance tool kit (item 372, App H)
Light duty laboratory apron (item 27, App H)
Chemical protective gloves (item 154, App H)
Adjustable air filtering respirator (item 262, App H)
0 - 30 inch-pound 1/4-inch drive dial indicator torque
wrench (item 445, App H)
Materials/Parts:
Brush (item 34, App F)
Sealing compound (item 176, App F)
Personnel Required:
68D
Aircraft Powertrain Repairer/NDI
67R3F
Attack Helicopter Repairer/Technical
Inspector
References:
TM 1-1520-238-T
TM 55-1500-323-24
Equipment Conditions:
Ref
Condition
1.57
Helicopter safed
2.2
Access fairing L546 removed
WARNING
FLIGHT SAFETY PART
The tail rotor gearbox is a flight safety part. Failure to follow maintenance instructions may
result in serious injury or death of crewmembers and/or serious damage to the helicopter.
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