As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
EMERGENCY LIGHTS OUT AT R2 DOOR ABOVE AND ON AFT GALLEY- NOTE EXTERIOR LIGHTS FOR THIS BATTERY PACK ARE ALSO OUT. GROUNDED - YES. REMOVED AND REPLACED AFT R/H EMERGENCY BATTERY PACK POWER SUPPLY S/N 167523 REF B737 AMM 33-51-06 EMER LIGHTS AT DOOR R2 ABOVE AND ON AFT GALLEY OPS CHECKS GOOD REF B737 AMM 33-51-06.