As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING THE BULKHEAD FITTING FAILSAFE STRAP INSPECTION, REPAIR IAW ECO C3039CA, 12 FASTENER HOLES ON THE WING TE ACCESS PANEL WERE FOUND TO BE THE WRONG SIZE, 1/4 INCH INSTEAD OF 3/16 INCH. INSTALLED 12 EACH LARGER FASTENERS IAW EA 250902 & SRM 51-40-0W.