Learjet 45
Flight Crew Air Transport Pilot (ATP)
Aircraft Equipment Problem Critical; Flight Deck / Cabin / Aircraft Event Smoke / Fire / Fumes / Odor
Aircraft
Smoke and burning wires reported in aft bay.
The reporter stated that the burning wires were discovered while accomplishing a walk around the aircraft while the APU was running. The smoke from the wires was located in an area behind the APU.The reporter stated that there was no visible damage to the aircraft and Maintenance was alerted. Maintenance removed the APU and corrected any issues associated with the burning wires. The aircraft was out of service for several days.
LR45 pilot reported smoke and burning wires in aft bay.