As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
(CAN) ON APPROACH, CREW SELECTED FLAPS FROM 2 TO 5 AND HAD AN AMBER LIGHT INDICATION FOR THE NR 1 KRUGER FLAP INDICATING STILL RETRACTED. FELT MODERATE VIBRATION AND DECLARED AN EMERGENCY. UNEVENTFUL LANDING. MAINTENANCE CYCLED SYSTEM AND COULD NOT FAULT. FURTHER INSPECTION FOUND THE NR 1 KRUGER FLAP SWITCH LINK BOLT/NUT LOOSE. (TC NR 20070717017)