What was found
L/H WING;O/B AFT FLAP- LOWER SURFACE DELAMINATED AT 4'' FROM I/B EDGE AND 6.0'' FROM T/E. PERFORMED VISUAL INSPECTION AND TAP TEST AT L\H O\B AFT FLAP ON LOWER SURFACE FOUND 3EA DELAMINATION (1) 3.5'X4'; (2) 3.5'X3' AND (3) 1'DIAMETRE PER B737 NTM PART (1) 51-05-01; CUT OUT 3EA DAMAGED AREAS AT L\H O\B FLAP ON LOWER ARE NO CORE DAMAGED NO WATER FOUND PER B737 SRM 51-70-10-2R-0 AND APPLIED TAP TEST AROUND THE CUTOUT AREAS NO DELAMINATION FOUND PER B737 NTM 51-05-01;FABRICATED FILLERS AND DOUBLER AT L/H WING O/B AFT FLAP LOWER SURFACE AS PER BOEING 737 SRM 51-70-10-2R-0. INSTALLED THE REPAIR PARTS AT L/W O/B AFT FLAP LOWER SURFACE AS PER BOEING 737 SRM 51-70-10-2R-0.PRIMED AND APPLIED TOP COAT AT REPAIR AREA ON L/W O/B AFT FLAP LOWER SURFACE AS PER BOEING 737 SRM 51-70-10-2R-0