What was found
DURING OP 15 MAINT CHECK, FOUND 4 I/B AFT FLAP CASTING ATTACH BOLTS ON REAR SPAR EMITTING RUST. REPLACED STUDS AND HINGE FITTING PER MM 57-40-0 AND 27-51-1.
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
DURING OP 15 MAINT CHECK, FOUND 4 I/B AFT FLAP CASTING ATTACH BOLTS ON REAR SPAR EMITTING RUST. REPLACED STUDS AND HINGE FITTING PER MM 57-40-0 AND 27-51-1.