As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AFTER TAKEOFF, NR 1 LEADIGN EDGE DEVICE WILL NOT RETRACT FLAP. AIRCRAFT DIVERTED BACK TO MDSD AND LANDED WITHOUT FURTHER INCIDENT. MAINTENANCE REMOVED AND REPLACED NR 1 LEADING EDGE FLAP SWITCH PER B727 MM 27-82-1 AND OPERATION CHECK GOOD IAW B727 MM 27-82-0. AIRCRAFT WAS RETURNED BACK TO SERVICE. (M)