As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
UNIT RECEIVED AS OVERHAULED UNIT AND INSTALLED ON RT ENGINE OF C-90 KINGAIR. UNIT FAILED AFTER ONE START. FROM APPEARANCE OF EXTERIOR OF EXCITER, IT MAKES YOU WONDER WHAT THE INTERIOR LOOKS LIKE. FAULTY, SLOPPY OF SOLDERING ON EXTEIROR OF CASE. TAGS ON THE EXTERIOR OF THE UNIT DRAW A QUESTION AS TO ITS ORIGIN AND SERVICEABILITY.