TM 1-1520-238-23
Change 2
5-142.1
5.29A.
MAIN ROTOR PITCH HORN WASHER REPLACEMENT (AVIM)
5.29A.1. Description
This task covers:
Removal. Cleaning. Inspection. Installation.
5.29A.2. Initial Setup
Tools:
Aircraft maintenance tool kit (item 372, App H)
Light duty laboratory apron (item 27, App H)
3-inch C clamp (item 60, App H)
Chemical protective gloves (item 154, App H)
Heat protective gloves (item 155, App H)
Electric gun type heater (item 163, App H)
1 1/4-inch blade putty knife (item 199, App H)
Adjustable air filtering respirator (item 262, App H)
Materials/Parts:
Adhesive (item 2, App F)
Cloth (item 48, App F)
Cloth (item 51, App F)
Methyl ethyl ketone (item 124, App F)
Primer (item 143, App F)
Personnel Required:
68D
Aircraft Powertrain Repairer/NDI
67R3F
Attack Helicopter Repairer/Technical
Inspector
WARNING
FLIGHT SAFETY PART
The main rotor pitch housing 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.
NOTE
This task is typical of all pitch horn washers.
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