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 ON APPROACH TO CLT DUE TO FLAP ASYMMETRY. THE AIRCRAFT LANDED SAFELY AT CLT WITHOUT FURTHER INCIDENT. MAINTENANCE REPLACED LEFT FLAP POSITION TRANSMITTER PER AMM 27-58-01 AND ACCOMPLISHED SATISFACTORY OPERATIONAL CHECK.