What was found
DURING HEAVY CHECK INSPECTION FOUND A CRACK ON THE AFT LOWER CARGO DOORWAY FRAME. THE CRACK EXTENDS FROM A FASTENER HOLE DOWN INTO A FRAME FLANGE. THE REPAIR INVOLVED TRIMMING OUT THE DAMAGE, PERFORMING A HFEC INSPECTION TO ENSURE THE CRACK AND ANY CORROSION WAS REMOVED. FABRICATED AND INSTALLED A FILLER AND ANGLE. COLD WORK ALUMINUM PARTS COMMON TO THE LAST ROW OF ANGLE PER SRM 51-40-9. INSTALLED COUNTERSUNK REPAIR WASHERS, INSTALLED REPAIR PARTS WITH BMS 5-95 SEALANT BETWEEN FAYING SURFACES, FINISH ALL BARE SURFACES WITH ALODINE AND TWO COATS OF BMS 10-11, TYPE 1 PRIMER IAW 3241. AIRCRAFT RETURNED TO SERVICE. (M)