PREPARE HELICOPTER FOR SHORT TERM STORAGE
Clean vertical hinge pins, pitch housings.
and bearing inner race surfaces. Use cloths
(E120) moist with solvent (E161).
Wipe vertical hinge pins and bearing inner
race surface dry. Use dry cloth (E120).
Do not use metal conditioner and
rust remover on vertical hinge pins or
bearing inner race surfaces. Damage
to surface hardness could result.
Remove fretting corrosion from pitch housing.
Use metal conditioner and rust remover
Wipe pitch housings dry of solvent or metal
conditioner. Use dry cloth (E120).
Coat vertical hinge pins and bearing inner
race surfaces. Use compound (E154).
Install vertical hinge pins in pitch housing
Install rotor hub protective covers (Task 1-32).
If protective covers are not available use
barrier (E81), and hold with tape (E388).
If rotor hub nut is not installed, cover end of
forward or aft transmission drive shaft. Use
barrier (E81) and hold with tape (E388).
ROTARY-WING HEAD CONTROLS
Prepare controls for storage as follows:
Lubricate swashplate (Task 1-90).
Do not use corrosion-preventive
compounds on rotary-wing head
controls. Removal of compounds with
solvent will damage dry-type bearings.
Clean controls. Use cloth (E120).
Prepare fuel system for storage as follows:
If helicopter is stored with fuel in tanks, keep
tanks full for duration of storage.
If aircraft is stored with tanks drained, perform
Prepare electrical system for storage as follows:
Set EMER EXIT LTS switch to DISARM.
Disconnect battery (Task 1-39).
Do not remove battery unless air temperature
is -40ºC (-40ºF) or less. If battery is removed
refer to TM 11-6140-203-15-2.
Clean battery (TM 11-6140-203-14-2).
Wrap battery plug. Use barrier (E81). Secure
plug to airframe. Use tape (E388).
Remove emergency exit lights (Task 17-4).
Only pitot-static system requires
preparation for storage.
Install cover on pitot-static tube (Task 1-32).
Prepare communication equipment for storage
Tag equipment to be removed.
Remove, protect, and return classified
equipment to appropriate storage facility as
directed in applicable directives.
Do not remove unclassified
communication equipment from
aircraft unless it needs repair.
Repaired equipment must be installed
immediately upon delivery from repair.