What was found
AIRCRAFT WAS GROUNDED: EMERGENCY LIGHTING SYSTEM TEST FAILED. FAULT MESSAGES ON PTP PANEL 110RH. REPLACED LEFT OVER WING EXIT EMERGENCY POWER SUPPLY UNIT AND ACCOMPLISHED A SATISFACTORY OPERATION AL CHECK PER AMM 33-51-38.
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
AIRCRAFT WAS GROUNDED: EMERGENCY LIGHTING SYSTEM TEST FAILED. FAULT MESSAGES ON PTP PANEL 110RH. REPLACED LEFT OVER WING EXIT EMERGENCY POWER SUPPLY UNIT AND ACCOMPLISHED A SATISFACTORY OPERATION AL CHECK PER AMM 33-51-38.