TM 55-2840-241-23
Table 7-1. Combustion Liner Inspection (Continued)
Item Inspection and Method
Serviceable Limits
Repairable Limits
Corrective action
8
Crack in relief slots at
combustion liner steps.
(See figure 7-8.) If a crack
in relief slot is suspected,
refer to TM 1-1520-254-
23, Technical Manual
Aviation Unit Maintenance
(AVUM) and Aviation
Intermediate Maintenance
(AVIM) Manual
Nondestructive Inspection
Procedure for OH-58
Helicopter Series. (Visual)
Any number 3/16 in. or
less in length.
Any number 1/2 in. or
less in length.
Weld repair. (Refer to
paragraph 7-32b.)
9
Crack in double lip area.
(See figure 7-8.) If a crack
in double lip area is
suspected, refer to TM 1-
1520-254-23, Technical
Manual Aviation Unit
Maintenance (AVUM) and
Aviation Intermediate
Maintenance (AVIM)
Manual Nondestructive
Inspection Procedure for
OH-58 Helicopter Series.
(Visual)
None permitted.
Not more than 3 in.
long.
Weld repair. (Refer to
paragraph 7-32b.)
9.1
Cracks in relief slots. If a
crack in relief slot is
suspected, refer to TM 1-
1520-254-23, Technical
Manual Aviation Unit
Maintenance (AVUM) and
Aviation Intermediate
Maintenance (AVIM)
Manual Nondestructive
Inspection Procedure for
OH-58 Helicopter Series.
(Visual)
Maximum of 3/16 in.
length.
Not repairable.
Replace liner.
7-12 Change 23
