TM 55-1520-240-23-1
1-93
STORE AIRCRAFT — GENERAL INFORMATION
1-93
INITIAL SETUP
Applicable Configurations:
All
Tools:
As Required
Materials:
As Required
Personnel Required:
As Required
References:
TM 43-0105
TM 55-1520-241-5
Tasks 1-96 thru 1-108
NOTE
CH-47D helicopters are prepared
for shipment as directed in TM
55-1520-241-S.
1.
Storage includes corrosion control by preventing
moisture from contacting exposed metal surfaces
using preservatives.
2.
There are two main types of corrosion: direct
chemical and electrochemical.
3.
Direct chemical corrosion occurs when airborne
chemicals erode or etch metal surfaces.
4.
Galvanic corrosion occurs between dissimilar
metals when moisture is present.
5.
Preservation consists of providing clean,
moisture-free surfaces, which are protected with
a barrier from corrosion conditions.
6.
Inspect for corrosion during storage.
7
If wet weather conditions exist, perform the
following:
a.
Keep fabrics, rubber, and other materials as
dry as possible.
b.
Keep fabric in aircraft clean.
c.
Treat all visible corrosion (TM 43-0105).
d.
If salty air is present, wash aircraft regularly
and lubricate moving parts.
e.
Check drain valves are open, covered with
screening, and not blocked.
f.
Keep fuel tanks full for flyable and short term
storage.
g.
Surrounding conditions must be considered
when selecting storage category.
STORAGE CATEGORIES
8.
Storage categories are as follows:
a.
Flyable storage (no limit) (Tasks 1-96 thru
1-100). Helicopters in flyable storage will
have a PMD inspection and runup performed
at least once every 14 days.
b.
Short term storage (from 1 to 45 days)
(Tasks 1-101 thru 1-104).
c.
Intermediate storage (from 46 to 180 days)
(Tasks 1-105 thru 1-108).
d.
Storage of aircraft undergoing maintenance
(no time limit). This category of maintenance
will include general requirements of storage
of aircraft undergoing any maintenance
action which causes the aircraft to be inactive
for more than fourteen days. Due to the
wide range of maintenance actions that
may create this situation, some storage
procedures will not be required and a degree
of latitude is given to the local maintenance
officer on the storage measures needed for
the particular situation. The fourteen day
limit is a guideline and variances are allowed
at the discretion of the Maintenance Officer.
NO BREAK - WORK HARDER
NO BREAK - WORK HARDER
FOLLOW-ON MAINTENANCE:
None
END OF TASK
1-358
