What was found
AIRCRAFT IN BASE MAINTENANCE: FORWARD LEFT EMERGENCY POWER SUPPLY UNIT 10WL FAILING EMERGENCY LIGHTING TEST. REPLACED EMERGENCY POWER SUPPLY UNIT 10W AND ACCOMPLISHED A SATISFACTORY OPERATIONAL CHECK PER AMM33-51-38.
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
AIRCRAFT IN BASE MAINTENANCE: FORWARD LEFT EMERGENCY POWER SUPPLY UNIT 10WL FAILING EMERGENCY LIGHTING TEST. REPLACED EMERGENCY POWER SUPPLY UNIT 10W AND ACCOMPLISHED A SATISFACTORY OPERATIONAL CHECK PER AMM33-51-38.