Flight crew of an large transport parked at the gate turned on bleed air from APU when the aircraft tail area was being deiced resulting in smoke and fumes coming into the cabin. The bleed air was turned off at once and the smoke stopped.

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Attributes
ACN	355182
Time
Date	199612
Day	Tue
Local Time Of Day	0601 To 1200
Place
Locale Reference	airport : msp
State Reference	MN
Altitude	agl bound lower : 0 agl bound upper : 0
Environment
Flight Conditions	IMC
Light	Daylight
Aircraft 1
Operator	common carrier : air carrier
Make Model Name	Commercial Fixed Wing
Operating Under FAR Part	Part 121
Navigation In Use	Other Other
Flight Phase	ground : preflight ground : parked
Flight Plan	IFR
Person 1
Affiliation	company : air carrier
Function	flight crew : captain oversight : pic
Qualification	pilot : atp
Experience	flight time last 90 days : 150 flight time total : 10000 flight time type : 400
ASRS Report	355182
Person 2
Affiliation	company : air carrier
Function	flight crew : first officer
Qualification	pilot : instrument pilot : commercial
Events
Anomaly	aircraft equipment problem : less severe other anomaly other
Independent Detector	other other : unspecified
Resolutory Action	flight crew : overcame equipment problem other
Consequence	Other
Supplementary
Air Traffic Incident	other

Narrative:

Thought deicing had been completed when jetway was returned to aircraft. Turned on pack and immediately got fumes. Turned off pack just as aft flight attendant called to say there was smoke in cabin. Told flight attendant we had fixed problem, don't evacuate/evacuation, keep me informed. Smoke dissipated. Turns out they were deicing the tail by the APU inlet. We caught the problem before there was enough smoke or fumes to need an evacuate/evacuation and before any passenger tried to self initiate one. (I had also made an immediate PA to the passenger explaining the problem.) we called maintenance control, MEL'ed the pack, and used the left pack only off the engine to avoid using any contaminated air from APU bleed duct. Maintenance ran right pack without problem at destination. The obvious problem was not assuring/verifying that deicing was done. I set myself up for it by not insisting on standard deicing phraseology at start of operation. Ground crew had not used the standard callouts at start. I saw the jetway, thought they were done for now and would call me later.

Original NASA ASRS Text

Title: FLC OF AN LGT PARKED AT THE GATE TURNED ON BLEED AIR FROM APU WHEN THE ACFT TAIL AREA WAS BEING DEICED RESULTING IN SMOKE AND FUMES COMING INTO THE CABIN. THE BLEED AIR WAS TURNED OFF AT ONCE AND THE SMOKE STOPPED.

Narrative: THOUGHT DEICING HAD BEEN COMPLETED WHEN JETWAY WAS RETURNED TO ACFT. TURNED ON PACK AND IMMEDIATELY GOT FUMES. TURNED OFF PACK JUST AS AFT FLT ATTENDANT CALLED TO SAY THERE WAS SMOKE IN CABIN. TOLD FLT ATTENDANT WE HAD FIXED PROB, DON'T EVAC, KEEP ME INFORMED. SMOKE DISSIPATED. TURNS OUT THEY WERE DEICING THE TAIL BY THE APU INLET. WE CAUGHT THE PROB BEFORE THERE WAS ENOUGH SMOKE OR FUMES TO NEED AN EVAC AND BEFORE ANY PAX TRIED TO SELF INITIATE ONE. (I HAD ALSO MADE AN IMMEDIATE PA TO THE PAX EXPLAINING THE PROB.) WE CALLED MAINT CTL, MEL'ED THE PACK, AND USED THE L PACK ONLY OFF THE ENG TO AVOID USING ANY CONTAMINATED AIR FROM APU BLEED DUCT. MAINT RAN R PACK WITHOUT PROB AT DEST. THE OBVIOUS PROB WAS NOT ASSURING/VERIFYING THAT DEICING WAS DONE. I SET MYSELF UP FOR IT BY NOT INSISTING ON STANDARD DEICING PHRASEOLOGY AT START OF OP. GND CREW HAD NOT USED THE STANDARD CALLOUTS AT START. I SAW THE JETWAY, THOUGHT THEY WERE DONE FOR NOW AND WOULD CALL ME LATER.

Data retrieved from NASA's ASRS site as of July 2007 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.