As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
ON DOWNWIND, SELECTED FLAP S 5. NOTICED FLAPS DID NOT EXTEND AND THERE WAS A VERY SMALL FLAP SPLIT. RECYCLED FLAPS BACK TO 0 THEN 5 AGAIN WITH NO CHANGE PROCEEDED IAW THE QRH AND DID A FLAPS UP LANDING WITH LED'S EXTENDED. AN EMERGENCY WAS DECLARED. R & R THE NR 3 FLAP SENSOR IAW AMM.