What was found
WHILE PERFORMING FLAP BALLSCREW INSPECTION FOUND THE NR 4 FLAP TRACK BALLSCREW TO HAVE CORROSION. REMOVED AND REPLACED LT I/B FLAP I/B BALLSCREW IAW AMM 27-51-10 AND 11.
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
WHILE PERFORMING FLAP BALLSCREW INSPECTION FOUND THE NR 4 FLAP TRACK BALLSCREW TO HAVE CORROSION. REMOVED AND REPLACED LT I/B FLAP I/B BALLSCREW IAW AMM 27-51-10 AND 11.