As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
POSITION NR 4 LE FLAP WENT UNLOCK FL 270 IN CLIMB. RECYCLED, UNABLE TO GET RETRACT INDICATION. CORRECTIVE ACTION....REPLACED LE ACTUATOR POS NR 4 PER MM 27-81-27. ADJUSTED SWITCH PER MM 27-82-1. GROUND CHECK NORMAL. INDICATION OK. LEAK CHECK OK.