What was found
DURING LINE CHECK, THE AFT EMERGENCY LIGHT POWER SUPPLY FAILED TEST. REPLACED AFT EMERGENCY LIGHT POWER SUPPLY (EMBS139-2) AND THE BATTERY (EMSE299).
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
DURING LINE CHECK, THE AFT EMERGENCY LIGHT POWER SUPPLY FAILED TEST. REPLACED AFT EMERGENCY LIGHT POWER SUPPLY (EMBS139-2) AND THE BATTERY (EMSE299).