TM 1-1520-238-23
1-58
Change 5
1.21.
DEFUELING – GRAVITY METHOD
1.21.1. Description
This task covers:
Defueling.
1.21.2. 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)
14-quart utility pail (item 222, App H)
Materials/Parts:
Lubricating oil (item 117, App F)
Personnel Required:
67R
Attack Helicopter Repairer
References:
FM 10-68
TM 1-1500-204-23
Equipment Conditions:
Ref
Condition
1.57
Helicopter safed
1.21.3. Defueling
WARNING
Fuel servicing shall not be per-
formed during thunderstorms or
possible lightning conditions.
Defueling is a very hazardous op-
eration because of fuel vapors.
Trained fire fighting personnel and
equipment must stand by during
the entire task.
a. Install static ground lines (FM 10-68).
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