As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AIRCRAFT WAS GROUNDED: AN EMERGENCY WAS DECLARED DUE TO: UPON SELECTING FLAPS 15 ON APPROACH DEVELOPED A TRAILING EDGE ASYMMETRY; ONE FLAP NEEDLE STOPPED AT 7 DEGREES THE OTHER AT ABOUT 12 DEGREES. AIRCRAFT DIVERTED TO AND LANDED SAFELY AT JFK. REMOVED AND REPLACED RIGHT HAND FLAP POSITION TRANSMITTER ASSEMBLY. PER AMM 27-58-01. OPS CHECKS GOOD.