As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AIRCRAFT WAS GROUNDED: TRAILING EDGE FLAPS SHOWED AN ASYMMETRY BETWEEN UP AND FLAPS 1 - ACCOMPLISHED TRAILING EDGE FLAPS ASYMMETRY CHECKLIST. FLAPS LESS THAN 1. AIRCRAFT DIVERTED TO BWI AND DECLARED AN EMERGENCY. REMOVED AND REPLACED FLAP SKEW SENSOR T527 AT FLAP 3.