What was found
MCN - MAJOR REPAIR - DURING C16 CHECK DISCOVERED DISBOND AREA ON UPPER SURFACE OF THE L/H AILERON TAB AT OUTBOARD END. MAINTENANCE REMOVED DISBONDED SKIN ON UPPER SURFACE OF THE L/H AILERON TAB AT THE OUTBOARD END IAW BOEING 737-300 SRM 51-70-07-0. BONDED FIBERGLASS REPAIR TO UPPER SURFACE OF THE L/H AILERON TAB ON OUTBOARD END IAW BOEING 737-300 SRM 51-70-07-0. RE-WEIGHED AILERON TAB AND ADDED NOTE TO DATA PLATE IAW BOEING 737-300 SRM 51-60-03-0 FIG 1.