What was found
DURING A NON ROUTINE CHECK, FOUND THE EMERGENCY LIGHT AT L FAILED EPSU TEST. MAINTENANCE REPLACED BATTERY PACK AND FUNCTIONAL TEST WAS NORMAL. AIRCRAFT RETURNED TO SERVICE.
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
DURING A NON ROUTINE CHECK, FOUND THE EMERGENCY LIGHT AT L FAILED EPSU TEST. MAINTENANCE REPLACED BATTERY PACK AND FUNCTIONAL TEST WAS NORMAL. AIRCRAFT RETURNED TO SERVICE.