CL60 experiences pack failure and cockpit/cabin smoke during engine start at clt.

Attributes
ACN	726793
Time
Date	200702
Local Time Of Day	0601 To 1200
Place
Locale Reference	airport : clt.airport
State Reference	NC
Altitude	agl single value : 0
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Operator	common carrier : air carrier
Make Model Name	Challenger CL600
Operating Under FAR Part	Part 121
Flight Phase	ground : pushback
Flight Plan	IFR
Person 1
Affiliation	company : air carrier
Function	flight crew : captain oversight : pic
Qualification	pilot : atp
ASRS Report	726793
Person 2
Affiliation	company : air carrier
Function	flight crew : first officer
Events
Anomaly	aircraft equipment problem : critical other anomaly
Independent Detector	other flight crewa other flight crewb
Resolutory Action	other
Consequence	other
Supplementary
Problem Areas	Aircraft
Primary Problem	Aircraft

Narrative:

Just pushed off the gate at clt. Tug was unhooked and flight was cleared to start engine # 2. After engine start an oily smoke started to enter cabin and cockpit thru vents. Flight returned to gate and passenger were deplaned. Maintenance was called and they determined that the left pack failed causing the pack to emit the smoke. Pack was deferred and the flight was dispatched.

Original NASA ASRS Text

Title: CL60 EXPERIENCES PACK FAILURE AND COCKPIT/CABIN SMOKE DURING ENGINE START AT CLT.

Narrative: JUST PUSHED OFF THE GATE AT CLT. TUG WAS UNHOOKED AND FLT WAS CLRED TO START ENGINE # 2. AFTER ENGINE START AN OILY SMOKE STARTED TO ENTER CABIN AND COCKPIT THRU VENTS. FLT RETURNED TO GATE AND PAX WERE DEPLANED. MAINT WAS CALLED AND THEY DETERMINED THAT THE LEFT PACK FAILED CAUSING THE PACK TO EMIT THE SMOKE. PACK WAS DEFERRED AND THE FLT WAS DISPATCHED.

Data retrieved from NASA's ASRS site as of January 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.