As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
PERFORMING T/C 78233001, FOUND THE L2 DOOR EXTERNAL EMERGENCY LIGHT AND BOTH LOWER EXTERIOR EMERGENCY LIGHTS AFT OF TE FLAPS, FAILED AFTER 15 MINUTES IAW MIG 2C 40-0008611. ACFT GROUNDED. REMOVED AND REPLACED BATTERY PACK IAW AMM 33-51-01. ALL LIGHTS OPS NORMAL AFTER MINIMUM CHARGE TIME.