A CL30 departed after being deiced and had smoke in the cockpit concurrent with an electrical fault cas annunciation. An emergency was declared with a return to land. Maintenance determined the smoke was de-ice fluid and the cas alert was false.

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Attributes
ACN	816706
Time
Date	200812
Place
Locale Reference	airport : zzz.airport
State Reference	US
Altitude	msl single value : 4000
Environment
Flight Conditions	IMC
Light	Night
Aircraft 1
Controlling Facilities	tower : zzz.tower
Operator	general aviation : corporate
Make Model Name	Challenger Jet Undifferentiated or Other Model
Operating Under FAR Part	Part 91
Flight Phase	climbout : initial
Flight Plan	IFR
Person 1
Affiliation	company : corporate
Function	flight crew : captain oversight : pic
Qualification	pilot : atp pilot : instrument pilot : multi engine
Experience	flight time last 90 days : 90 flight time total : 15500 flight time type : 550
ASRS Report	816706
Person 2
Affiliation	company : corporate
Function	flight crew : captain oversight : pic
Qualification	pilot : multi engine pilot : atp
Experience	flight time last 90 days : 130 flight time total : 9965 flight time type : 700
ASRS Report	816705
Events
Anomaly	aircraft equipment problem : less severe inflight encounter : weather other anomaly
Independent Detector	aircraft equipment other aircraft equipment : cas other flight crewa other flight crewb
Resolutory Action	flight crew : diverted to another airport flight crew : landed in emergency condition flight crew : declared emergency
Consequence	other
Supplementary
Problem Areas	Aircraft Flight Crew Human Performance Weather
Primary Problem	Flight Crew Human Performance

Narrative:

Shortly after takeoff from ZZZ; approximately 400 ft AGL we received an electrical fault advisory cas message (this message is to advise of a loss of redundancy in the display of the electrical indications). At approximately 4000 ft MSL we started to get some smoke and fumes in the cockpit (we were deiced at ZZZ). The cas message by itself was not a problem; and after getting deiced the smoke and fumes in the cockpit was not unusual; but when they both came at the same time we felt that the safest thing to do was to get the aircraft back on the ground. We declared an emergency and landed without incident. After talking with our maintenance and bombardier; we ran the aircraft for 20 mins. All was normal; the smoke was gone and the electrical fault was no longer there. As a result everyone concluded that the smoke was from the deice and the cas message was nuisance message that just came 'at a bad time.'

Original NASA ASRS Text

Title: A CL30 DEPARTED AFTER BEING DEICED AND HAD SMOKE IN THE COCKPIT CONCURRENT WITH AN ELECTRICAL FAULT CAS ANNUNCIATION. AN EMERGENCY WAS DECLARED WITH A RETURN TO LAND. MAINTENANCE DETERMINED THE SMOKE WAS DE-ICE FLUID AND THE CAS ALERT WAS FALSE.

Narrative: SHORTLY AFTER TKOF FROM ZZZ; APPROX 400 FT AGL WE RECEIVED AN ELECTRICAL FAULT ADVISORY CAS MESSAGE (THIS MESSAGE IS TO ADVISE OF A LOSS OF REDUNDANCY IN THE DISPLAY OF THE ELECTRICAL INDICATIONS). AT APPROX 4000 FT MSL WE STARTED TO GET SOME SMOKE AND FUMES IN THE COCKPIT (WE WERE DEICED AT ZZZ). THE CAS MESSAGE BY ITSELF WAS NOT A PROB; AND AFTER GETTING DEICED THE SMOKE AND FUMES IN THE COCKPIT WAS NOT UNUSUAL; BUT WHEN THEY BOTH CAME AT THE SAME TIME WE FELT THAT THE SAFEST THING TO DO WAS TO GET THE ACFT BACK ON THE GND. WE DECLARED AN EMER AND LANDED WITHOUT INCIDENT. AFTER TALKING WITH OUR MAINT AND BOMBARDIER; WE RAN THE ACFT FOR 20 MINS. ALL WAS NORMAL; THE SMOKE WAS GONE AND THE ELECTRICAL FAULT WAS NO LONGER THERE. AS A RESULT EVERYONE CONCLUDED THAT THE SMOKE WAS FROM THE DEICE AND THE CAS MESSAGE WAS NUISANCE MESSAGE THAT JUST CAME 'AT A BAD TIME.'

Data retrieved from NASA's ASRS site as of May 2009 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.