What was found
DURING A NON ROUTINE CHECK, EMERGENCY LIGHT ON FAP MESSAGE EPSU LOAD FAIL AT FWD LT. REPLACED BATTERY PACK AND FUNCTIONAL TEST WAS NORMAL. ACFT 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, EMERGENCY LIGHT ON FAP MESSAGE EPSU LOAD FAIL AT FWD LT. REPLACED BATTERY PACK AND FUNCTIONAL TEST WAS NORMAL. ACFT RETURNED TO SERVICE.