What was found
DURING HEAVY MAINTENANCE, REF JB A5109057-04-JB. AGING AIRCRAFT PROGRAM. EXITING REPAIR EVALUATION LOC FR27 TO FR28 BTW STR 38R TO 42R AT LOWER FUSELAGE; REF AEROMAN WO 2022 3/1, NR 2022-163236. PERFORMED PERM REPAIR IAW JB EC A22-258-01.