TM    55-2840-231-23 3-4. Combustion Liner - Inspection - Continued ENGINE - Continued Combustion Liner Inspection - Continued Item 5 6 7 8 9 10 11 Inspection and Method Check on outside of liner. (See  preceding  figure.) Crack in tab end inside liner. (See preceding fig- ure.) (Visual) Cracks at two adjacent re- lief slots progressing to- ward same hole. (See pre- ceding figure.) (Visual) Crack in relief slots at combustion liner steps. (See  preceding  figure.) (Visual) Crack in double lip area. (See  preceding  figure.) (Visual) Crack in igniter ferrule at- taching  weld.  (See  preced- ing figure.) (Visual) Roughened  igniter  ferrule ID. (See preceding fig- ure.) (Visual) Serviceable Limits None  permitted. No cracks greater than 1/4 inch (6.44 mm) long and no more than two cracks per tab. Not  permitted. Any number 3/16 inch (4.8 mm) or less in length. None  permitted. None  permitted. None  permitted. Repairable Limits Any number as long as  crack  length  does not exceed limits shown on preceding figure. Not repairable if crack cannot be completely  welded and/or weld obstructs cooling air passage. Not  repairable. Not  repairable. Any number 1/2 inch (12.7 mm) or less in length. Not more than 3 in- ches (76.2 mm) long. Crack does not ex- ceed 1/4 inch (6.4 mm) long. ID does not exceed 0.560 inch ( 1.422 cm)  after  polishing. Corrective Action Weld-repair. (Refer to paragraph 3-5.) Replace liner. Replace liner. Weld-repair. (Refer to paragraph 3-5.) Weld-repair. (Refer to paragraph 3-5.) Weld-repair. (Refer to paragraph 3-5.) Polish ID. (Refer to paragraph 3-5.) 3-8