TM 1-1520-238-23
1-367
SECTION VI. PREVENTIVE MAINTENANCE INSPECTIONS
1.135.
INSPECTION REQUIREMENTS
a. Check helicopter at specific intervals.
b. Check helicopter parts and surrounding area every time you work on the part.
c. Checks are performed by aviation unit maintenance (AVUM) personnel. Aviation intermediate maintenance
(AVIM) personnel are called in if needed.
d. There are three types of inspections:
Inspection
Publication
Interval
PHASED MAINTENANCE
SERVICES
TM 1-1520-238-PMS
10 HOUR/14 DAY
PHASED MAINTENANCE
TM 1-1520-238-PM
After helicopter operated a specific
number of hours.
SPECIAL
TM 1-1520-238-23
(Go to para 1.136)
After beyond-normal conditions
(such as hard landings, overspeeds)
and for safety equipment.
After something unusual happens or
by calendar time.
e. Inspections apply to all helicopters maintained with this manual. Equipment to be inspected may not be
installed on your helicopter. If this is so, you do not have to do this inspection.
f. Your helicopter may go to another organization. Standards of serviceability for transfer of aircraft are in
TM 1-1500-328-23.
END OF TASK
