What was found
DURING HEAVY CHECK, FOUND ACCESS PANEL 524AT HAS FRETTING CORROSION ON COUNTERSINKS. MX FOUND TO BE OUT OF LIMITS AND R & R ACCESS PANEL, IAW AMM 57-21-01.
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
DURING HEAVY CHECK, FOUND ACCESS PANEL 524AT HAS FRETTING CORROSION ON COUNTERSINKS. MX FOUND TO BE OUT OF LIMITS AND R & R ACCESS PANEL, IAW AMM 57-21-01.