As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
ATB/DE- DUE TO TAKEOFF WARNING HORN SOUNDED DURING CLIMB OUT. PSEU FAULT CODE 31-53010 (LE FLAPS NOT EXT) AND FSEU FAULT 27-81218 (F2 PROX RETRACT) RECORDED. REPLACED LE FLAP 2 RETRACT PROXIMITY SENSOR (S170). FAULTS CLEARED. AIRCRAFT RETURNED TO SERVICE.