What was found
TUL - FOUND UPPER CHORD RIB CRACKED 1.5 INCH ABOVE OUTBOARD AILERON INBOARD HINGE CASTING, WBL 499. REPLACED UPPER T-CHORD PER BOEING SERVICE BULLETIN 727-57-16F. (M)
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
TUL - FOUND UPPER CHORD RIB CRACKED 1.5 INCH ABOVE OUTBOARD AILERON INBOARD HINGE CASTING, WBL 499. REPLACED UPPER T-CHORD PER BOEING SERVICE BULLETIN 727-57-16F. (M)