As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AIRCRAFT WAS GROUNDED: DURING OPERATIONAL TEST OF EMERGENCY LIGHTING J/C 08T20033001, FOUND RIGHT HAND OVERWING ESCAPE GROUND ILLUMINATION LIGHT INOPERATIVE AFT OF WHEEL WELL. REMOVED AND REPLACED M01672 BATTERY PACK. PER AMM 33-51-06.