OVERHAUL AND RETIREMENT SCHEDULE
This section lists parts or components of the
helicopter. These items shall be removed from
the helicopter for overhaul or retirement at the
period specified. Removal of equipment for
overhaul may be accomplished at the inspection
nearest the time when overhaul is due unless
otherwise specified in TM 1-1500-328-25.
The maximum authorized operating
time or calendar interval of parts prior
to removal for overhaul at category of
maintenance authorized in accordance with
the Maintenance Allocation Chart.
The operating time or calendar interval
specified for removal, condemnation,
and disposal of parts in accordance with
List the items replaced on a calendar basis for
overhaul or retirement on DA Form 2408-18.
Equipment Inspection List, for scheduling
Do not list items on DA Form 2408-16,
Component Installation and Removal
Record for items replaced on a
Bolts with an assigned retirement interval.
Whenever a bolt with an assigned retirement
interval in replaced (not reinstalled) it shall be
immediately mutilated and locally scrapped.
The replacement bolt shall be a new (zero
Several bolts in the upper rotor controls are
assigned a 4,000 hours aircraft retirement
interval. Upon reaching 4,000 hours
aircraft time and every 4,000 aircraft hours
thereafter, the bolts listed in table 1-91 shall
be replaced with new life items.
All Retirement Life Items will have a
Demil Code of "L" and will be mutilated
in accordance with DOD 4160.21-M-1,