What was found
C-CHECK, LT OTBD AFT FLAP LOWER SURF WBL 400 HAS 2 AREAS OF DELAMINATION. CUT OUT DELAM AREA. FABBBED ONE FILLER AND ONE DOUBLER. CLEARED, PREPED, APPLIED ADHESHIVE PRIMER & ADHESIVE TO ALL MATING SURFACES. BONDED, CURED, SANDED, CLEANED, TREATED, PRIMED, SEALED, REPAIR. CUT OUT DELAM AREA FROM UPPER SKIN. REMOVED AND REPLACED DAMAGED HONEYCOMB CORE AND FABBED ONE FILLER AND ONE DOUBLER. INSTALLED REPAIR, ALODINED, PRIMED AND SEALED IAW B727 SRM 51-40-20 FIG 30.