What was found
CREW REPORTED THAT THE ENG INSTRUMENT LIGHTS WERE INOPERATIVE. TROUBLESHOOTING IDENTIFIED THE DC VOLT AMMETER TO BE SHORTED INTERNALLY. REMOVED THE DEFECTIVE METER PN 128-380079-3 SN 409 & INSTALLED AN OVERHAULED UNIT.
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
CREW REPORTED THAT THE ENG INSTRUMENT LIGHTS WERE INOPERATIVE. TROUBLESHOOTING IDENTIFIED THE DC VOLT AMMETER TO BE SHORTED INTERNALLY. REMOVED THE DEFECTIVE METER PN 128-380079-3 SN 409 & INSTALLED AN OVERHAULED UNIT.