As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
WHILE RETRACT FLAPS NR 4 L/E DEVICE WOULD NOT RETRACT WHEN FLAPS MOVED FROM 5 DEG TO 2 DEG. DUMP FUEL. COULD NOT DUPLICATE. AS PRECAUTIONARY REMOVED AND REPLACED NR 4 L/E FLAP POSITION SWITCH REF B727-200 MM 27-82-001-4. REMOVED AND REPLACED CONTROL MODULE AT S/O''''S STATION MM 27-82-031-4. PERF OPS OF FLAPS NUMEROUS TIMES, OPS NORMAL.