TM 1-1520-238-23
(1-403 blank)/1-404
Change 10
SECTION VII. OVERHAUL AND RETIREMENT SCHEDULE
1.138.
OVERHAUL AND RETIREMENT SCHEDULE
a. The overhaul and retirement schedule lists parts that must be removed after specific operating times. The
schedule gives the total operating hours after which the maintenance must be performed.
b. Parts can be removed during the inspection nearest the time before removal is due. Exceptions to this are in
TM 1-1500-328-23.
c. The removed part is either overhauled or discarded when parts are replaced (retired).
d. The schedule has five headings:
PART NAME
– Name of the part. An asterisk (*) preceding the part name
indicates an indentured subassembly.
PART NUMBER
– Number assigned to the part. Check TM 1-1520-238-23P for part
numbers of replacement parts.
OVERHAUL INTERVAL
HOURS
– Maximum operating time allowed on the part before it is to be
overhauled.
OVERHAUL INTERVAL
NOTES
– Covered by special inspection No. 27 (para 1.137).
RETIREMENT INTERVAL
HOURS
– Maximum operating time allowed on the part before it is removed
and condemned.
RETIREMENT INTERVAL
NOTES
– All retirement life items will have a Demil Code of “L” and will be
mutilated in accordance with DOD 4160.21-M-1, Defense
Demilitarization manual and TM 1-1500-328-23, Aeronautical
Equipment Maintenance Management Policies and Procedures.
e. Be sure to fill out all forms, records, and worksheets required by DA PAM 738-751 when replacing parts.
f. The following parts will be removed from service 1440 days after installation:
NOTE
A double asterisk (**) preceding the part name indicates overhaul and retirement schedule interval
note 11 applies.
NOMENCLATURE
PART NUMBER
**Pitch Rod End
7-311511137-3
**Pitch Rod End
7-311511137-5
**Pitch Rod End
7-311511137-11
**Pitch Rod End
7-311511137-13
**Bearing, Plain Rod End
289330-1
**Bearing, Plain Rod End
289332-1
Support Assembly Mixer
7-211160040
g. Refer to Section VIII for management of cartridge and propellant actuated devices.
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