As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AIRCRAFT WAS GROUNDED. EMERGENCY DECLARED. DURING APPROACH SELECTED FLAPS 15 AND RECEIVED A MASTER CAUTION WARNING AND "LE FLAP ASYMMETRY" EICAS MESSAGE. MAINTENANCE ACCOMPLISHED FIM 27-81-00, CYCLED SLATS/FLAPS. LEADING EDGE WARNING CLEARED. SYSTEM CHECKS NORMAL.