While preparing for departure the flight crew of a ce-680 reacted quickly to smoke and fire emanatin...

Attributes
ACN	1138382
Time
Date	201312
Local Time Of Day	0601-1200
Place
Locale Reference	ZZZ.Airport
State Reference	US
Aircraft 1
Make Model Name	Cessna Citation Sovereign (C680)
Operating Under FAR Part	Part 91
Flight Phase	Parked
Component
Aircraft Component	Pneumatic System
Person 1
Function	Captain Pilot Flying
Qualification	Flight Crew Air Transport Pilot (ATP)
Events
Anomaly	Aircraft Equipment Problem Critical Flight Deck / Cabin / Aircraft Event Smoke / Fire / Fumes / Odor Ground Event / Encounter Other / Unknown

Narrative:

While I was in cockpit partner said there is a strange smell. I went back and agreed it was strong and was calling maintenance and saw smoke coming from floor below lav sink. Then a 4 to 6 inch flame appeared. I yelled; 'fire turn off bleed air'. He did that grabbed the fire extinguisher and headed back. The smoke and flames stopped when the bleed was turned off so extinguisher was not used. We got off the aircraft and wrote it up. In hindsight I should have had the cabin interior switch turned off also to cut the most likely source of the fire. We would have been airborne in about 30 minutes glad it happened on the ground.

Original NASA ASRS Text

Title: While preparing for departure the flight crew of a CE-680 reacted quickly to smoke and fire emanating from the cabin floor beneath the lavatory sink; apparently the result of a faulty pneumatic system.

Narrative: While I was in cockpit partner said there is a strange smell. I went back and agreed it was strong and was calling Maintenance and saw smoke coming from floor below lav sink. Then a 4 to 6 inch flame appeared. I yelled; 'fire turn off bleed air'. He did that grabbed the fire extinguisher and headed back. The smoke and flames stopped when the bleed was turned off so extinguisher was not used. We got off the aircraft and wrote it up. In hindsight I should have had the cabin interior switch turned off also to cut the most likely source of the fire. We would have been airborne in about 30 minutes glad it happened on the ground.

Data retrieved from NASA's ASRS site as of July 2013 and automatically converted to unabbreviated mixed upper/lowercase text. This report is for informational purposes with no guarantee of accuracy. See NASA's ASRS site for official report.

While preparing for departure the flight crew of a ce-680 reacted quickly to smoke and fire emanating from the cabin floor beneath the lavatory sink; apparently the result of a faulty pneumatic system.