What was found
UPPER FUSELAGE, EVIDENCE OF LIGHTNING STRIKE, AFT OF UPPER BEACON. MEASURED LIGHTNING STRIKE AFT OF UPPER BEACON AND FOUND DAMAGE TO BE OUT OF LIMITS IAW B67 SRM 53-00-01-1A ALLOWABLE DAMAGE 1. NOMINAL THICKNESS OF DAMAGED AREA 0.178", LIGHTNING STRIKE MATERIAL LOSS 0.025", MAX ALLOWABLE MATERIAL LOSS IS 0.018". DUE TO MATERIAL LOSS, SOLID RIVET REPAIR PERFORMED IAW B67 SRM 53-00-01-2R REPAIR 8. *MAJOR REPAIR* SEE JPF.