As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
WHILE THE PILOT WAS LANDING AT THE BASE, THE CREW DETECTED FUMES IN THE AIRCRAFT CREW COMPARTMENT. THE NR 2 GPS LOST POWER SHORTLY THEREAFTER. COMPLETED THE LANDING AND SHUT DOWN THE AIRCRAFT. MECHANIC TROUBLESHOT THE PROBLEM TO AN INTERNAL SHORT OF THE DIMMING SYSTEM ON NR 2 GPS. REPLACED WITH REPAIRED UNIT. THE AIRCRAFT WAS OPERATIONALLY CHECKED WITH NO DEFECTS NOTED, AND RETURNED TO SERVICE AT THAT TIME.