TM    55-2840-231-23 3-4. Combustion Liner - Inspection INITIAL SETUP Applicable    Configuration References Al l Para 3-5 ENGINE/ 1. Combustion Liner Inspect  the  combustion  liner  as  outlined below. Combustion  Liner  Inspection Item 1 2 3 4 3-6 Inspection  and  Method Pulled  or  broken  spotwelds at  liner  step.  (See  preceding figure.)  (Visual) Handling  damage. preceding   figure.) (See a.   Mashed-out-of-round. (Visual) b.  Dented.  (Visual) Localized  high  tempera- ture  distortion  indicated  by warping or rippling of the liner surface and is nor- mally  accompanied  by  dis- coloring  (burning)  of  the area. (Visual) Burning in area of relief slots. (See preceding fig- ure.) (Visual) Serviceable  Limits None  permitted. None  permitted. None  permitted. Warpage  less  than  1/16 inch (1.6 mm) deep over an area 1 inch (25.4  mm)  in  diameter and  remaining  within the area shown on following  figure. Rear  edge  burned  less than 1/16 inch (1.6 mm)  or  both  corners burned  less  than  1/4 inch (6.4 mm) along relief  slot. Repairable  Limits Not more than four adjacent  spotwelds or 40 percent of total  per  step. Able to straighten to concentricity  limits. Any  dent  that  re- mains  within  the area shown on pre- ceding  figure  and does not cause thin- out  of  metal. Straightened   dents must  meet  concen- tricity  limits. Not repairable. Not repairable. Corrective  Action Weld-repair.   (Refer to paragraph 3-5.) Straighten  and re- form. Straighten and re- form. Replace  liner. Replace  liner.