As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING ENGINE START ON GROUND, THE DC GROUND POWER CART CABLE SHORTED AGAINST AIRCRAFT SKIN AND CAUSED FIRE DAMAGE TO AREA AFT OF GPU CONNECTION. AIRCRAFT WAS FERRIED TO MDT FOR REPAIR. DAMAGED AREA WAS REPAIRED IAW DHC REPAIR DRAWING 8-53-1939, ISSUE 2. AIRCRAFT RETURNED TO SERVICE. ACTT: 3,453:36 HRS. ACTC: 3,975. (X)