TM 1-1520-238-23
Change 4
11-763
11.173. PILOT LONGITUDINAL SHEAR PIN ACTIVATED DECOUPLER (SPAD) SHEAR PIN
REPLACEMENT
11.173.1. Description
This task covers:
Removal. Cleaning. Inspection. Installation.
11.173.2. Initial Setup
Tools:
Aircraft mechanic’s tool kit (item 376, App H)
Light duty laboratory apron (item 27, App H)
Industrial faceshield (item 129, App H)
Chemical protective gloves (item 154, App H)
10 - 50 inch-pound 1/4-inch drive click type torque
wrench (item 434, App H)
Materials/Parts:
Cotter pin
Petrolatum (item 138, App F)
Wire (item 220, App F)
Personnel Required:
67R
Attack Helicopter Repairer
67R3F
Attack Helicopter Repairer/Technical
Inspector
References:
TM 1-1520-238-T
Equipment Conditions:
Ref
Condition
1.57
Helicopter safed
11.46
Pilot cyclic stick cover removed
2.161
Pilot seat removed
WARNING
Installation of a solid steel shear pin in
a BUCS-equipped aircraft will render
the BUCS system inoperative. Installa-
tion of a frangible-type shear pin in an
aircraft not equipped with BUCS may
result in loss of flight controls and
possible loss of aircraft.
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M04-1744-11
SOLID STEEL
FOR USE ON NON - BUCS AIRCRAFT ONLY
FRANGIBLE TITANIUM
FOR USE ON BUCS AIRCRAFT ONLY
PILOT STATION
M04-1744-1
