As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
EMERGENCY LIGHT WOULD NOT COME ON DURING TEST. SWAPPED MAIN AND SPARE EMERGENCY LIGHT BATTERY PACKS IAW B767 AMM 33-51-07-2. DEFERRED SPARE. CLEARED DI 53368. REMOVED AND REPLACED EMERGENCY BATTERY PACK IN -SPARE- POSITION IAW B767 MM 33-51-07-022-803.