What was found
WHILE IN FOR C-CHECK, MAINTENANCE FOUND CRACKED UPPER RIB CHORD AT FWD VENT BOX FWD FLANGE 7 INCHES AFT OF FRONT SPAR ON LEFT WING AT STA 171.5. REPAIRED IAW SRM 51-40-04.
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
WHILE IN FOR C-CHECK, MAINTENANCE FOUND CRACKED UPPER RIB CHORD AT FWD VENT BOX FWD FLANGE 7 INCHES AFT OF FRONT SPAR ON LEFT WING AT STA 171.5. REPAIRED IAW SRM 51-40-04.