As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AIRCRAFT WAS GROUNDED: ON APPROACH, SET FLAP HANDLE TO 5 BUT FLAPS STOPPED BETWEEN UP AND 1. PERFORMED ALTERNATE FLAP EXTENSION PROCESS PER QUICK REFERENCE HANDBOOK, EMERGENCY WAS DECLARED LANDED WITH FLAPS 15. BUILT IN TEST EQUIPMENT CHECK OF FLAP SLAT ELECTRONIC UNIT FAULT CODE 27-53280 AND 27-53279. TROUBLE SHOOTING PER FIM 27-51-00-810-823 REMOVED AND REPLACED CIRCUIT BREAKER C1443. OPERATIONS CHECK GOOD. ALSO PERFORMED FIM 27-51-00-810-820. NO FAULTS.