Flight Crew Air Transport Pilot (ATP)
Flight Deck / Cabin / Aircraft Event Smoke / Fire / Fumes / Odor
General Maintenance Action; General Declared Emergency
Aircraft
During the preflight; we started the APU and did our preflight checks. After the 2 minute limitation; we turned on the bleed air on the APU. Thirty seconds later; the cabin and cockpit filled with smoke. We promptly shutdown the APU; powered down all aircraft systems; turned off the aircraft battery; and evacuated the aircraft. There were no fire indications. We then ran into the FBO to have them call the fire department. The fire department showed up and found no smoke or fire indications. They did not require any report or further information from us. We then called Company Flight Tracking and Maintenance to alert them as to what was going on. Secured aircraft and waited for Maintenance.
[Narrative 2 had no additional information]
BAE-125-850XP flight crew reported the aircraft filled with smoke when the APU bleed air was selected at the gate. APU was shut down and airport CFR summoned.