What was found
ALL LIGHTS COMING OFF EMERGENCY BATTERY PACK M1673 INOP. TROUBLESHOT PER FIM 33-50-801, REPLACED M1673 BATTERY PACK REF B737 AMM 33-51-06, ALL OPS CHECKS GOOD.
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
ALL LIGHTS COMING OFF EMERGENCY BATTERY PACK M1673 INOP. TROUBLESHOT PER FIM 33-50-801, REPLACED M1673 BATTERY PACK REF B737 AMM 33-51-06, ALL OPS CHECKS GOOD.