As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
SHIP 3766 -ATB/UFC- RETURNED LAS DUE TO FLAP LOCKOUT DURING CLIMB. CORRECTIVE ACTION: FSEU BITE FAULT CODE 27-53252 (FLAP 3 SKEW) RECORDED. FOUND WIRING DAMAGE AT SKEW SENSOR 4 PLUG T528 BACKSHELL. MAINTENANCE REPLACED #1 FLAP TRANSMISSION, O/B BALLSCREW AND GIMBAL AND L/H FLAP TRANSMITTER. REF B 737 AMM 27-51.