What was found
SCRATCH EXTERNAL SKIN LOCATED BTW FR 56 TO FR 57 AND STR 25L TO STR 26L AT LOWER FUSELAGE. PERFORMED REPAIR INSTRUCTIONS ON EXTERNAL SKIN LOCATED BTW FR 56 - 57, S25L - 26L AT LOWER FUSELAGE IAW SRM 53-41-11-300-109, RECHK IS REQUIRED DUE TO THIS REPAIR IS CONSIDERED CATEGORY B, INSPECTION THRESHOLD FROM TIME OF ADL/ REPAIR EMBODIMENT 33,900 FC, 67,800 FH SUBSEQUENT INSPECTION AT INTERVALS OF 5,000 FC 10,000 FH, INSTALLED & STABLISHED DECAL MONITOR CONDITION LOC. ON EXTERNAL SKIN LOCATED BTW FR 56 - 57, S25L - S26L AT LOWER FUSELAGE & APPLIED EDGE SEALER IAW TOPP 30-10-70 ITEM I PAGE 14 AND PS900-5-1 N.4. (LP: 1736930, AIRCRAFT WAS GROUNDED)