TM 55-2840-231-23
3-4. Combustion Liner - Inspection - Continued
Combustion Liner Inspection - Continued
Item
Inspection and Method
Serviceable Limits
Repairable Limits
Corrective Action
12
Worn or distorted (out-
Wall thickness is not
Not repairable.
Replace liner.
of-round) igniter ferrule.
less than 0.020 inch
(See preceding figure.)
(0.05 1 cm) and/or
(Visual)
ID does not exceed
0.560 inch (1.422
cm).
13
Crack in fuel nozzle fer-
None permitted.
Crack does not ex-
Weld-repair. (Refer
rule attaching weld. (See
teed 1/4 inch (6.4
to paragraph 3-5.)
preceding figure.) (Visual)
mm) long.
14
Roughened fuel nozzle
None permitted.
ID does not exceed Polish ID. (Refer to
ferrule ID. (See preceding
0.670 inch (1.702
pargraph 3-5.)
figure.) (Visual)
cm) after polishing.
15
Worn or distorted (out-of-
ID does not exceed
Not repairable.
Replace liner.
round) fuel nozzle ferrule.
0.670 inch (1.702
(See preceding figure.)
cm).
(Visual)
16
Crack around spotwelds
No cracks with a
Not repairable.
Replace shield.
on heat shield.
greater length of
50 percent of the
distance around the
weld.
Change 13 3-9
