What was found
FOUND DURING F-1 LETTER CHECK - I/B L/E SPAR STIFFENER CRACKED AT NR 5 SLAT TRACK. REPLACED WING SPAR STIFFENER PER M/M 57-20-21, PG 813.
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
FOUND DURING F-1 LETTER CHECK - I/B L/E SPAR STIFFENER CRACKED AT NR 5 SLAT TRACK. REPLACED WING SPAR STIFFENER PER M/M 57-20-21, PG 813.