As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING 1200 HOUR LUBRICATION OF THE FLAP DRIVE GEARBOX, NOTED THE FORWARD GEAR WAS WORN TO THE END OF SERVICEABLE LIMITS. THE FLAP SYSTEM OPERATED NORMALLY GIVING NO INDICATION OF IMPENDING FAILURE. A NEW GEAR AND BEARING WAS INSTALLED AND THE GEARBOX SERVICED.