What was found
MAIN CABIN BS 168, LBL 51 MEMBRANE HAS A PUNCTURE HOLE. MAIN CABIN BS 168, LBL 51 MEMBRANE, CUT OUT DAMAGE AREA DIM: .650" X .450", FABRICATED REPAIR DOUBLER, ALODINED + PRIMED, TOP COATED, AND INSTALLED REPAIR, ALL IAW SRM 51-70-10, SRM 53-10-51, SRM 51-40-08, SRM 51-10-04, AMM 51-10-00. ADDED MATERIAL DATA. WEB MEMBRANE IS .020", DOUBLER THICKNESS IS .032.