What was found
DURING INCORPORATION OF SB 670BA-57-020, REV B. SHOP FOUND THREE OVERSIZED FASTENER HOLES IN THE WING PLANK. REPAIRED WING SKIN IAW REO 670-57-21-725, REV--.
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
DURING INCORPORATION OF SB 670BA-57-020, REV B. SHOP FOUND THREE OVERSIZED FASTENER HOLES IN THE WING PLANK. REPAIRED WING SKIN IAW REO 670-57-21-725, REV--.