Emergency declared by the flight crewof a CL600 when unable to pressurize their aircraft, return and...

Attributes
ACN	578642
Time
Date	200304
Day	Mon
Local Time Of Day	1801 To 2400
Place
Locale Reference	airport : atl.airport
State Reference	GA
Altitude	msl single value : 10000
Environment
Flight Conditions	VMC
Light	Night
Aircraft 1
Controlling Facilities	tracon : a80.tracon
Operator	common carrier : air carrier
Make Model Name	Challenger CL600
Operating Under FAR Part	Part 121
Navigation In Use	other
Flight Phase	climbout : intermediate altitude
Flight Plan	IFR
Person 1
Affiliation	company : air carrier
Function	flight crew : captain oversight : pic
Qualification	pilot : atp
Experience	flight time last 90 days : 65 flight time total : 4000 flight time type : 140
ASRS Report	578642
Person 2
Affiliation	company : air carrier
Function	flight crew : first officer
Events
Anomaly	aircraft equipment problem : critical
Independent Detector	other flight crewa other flight crewb
Resolutory Action	controller : provided flight assist controller : issued new clearance flight crew : landed in emergency condition flight crew : diverted to another airport flight crew : declared emergency
Consequence	other other
Supplementary
Problem Areas	Aircraft
Primary Problem	Aircraft

Narrative:

On climb out from atlanta, en route to panama city (pfn), we lost our left air conditioning pack and cabin pressurization passing through 10000 ft MSL. We stopped the climb and leveled off at 10000 ft and told ATC we could not climb, and needed vectors and time to 'check things out.' we ran all appropriate checklists and could not regain cabin pressurization. After consulting with company maintenance and dispatcher, I declared an emergency for possible structural damage and returned to atlanta. We had the crash trucks check the aircraft for any exterior damage after landing. No damage was found and we taxied to the gate.

Original NASA ASRS Text

Title: EMER DECLARED BY THE FLT CREWOF A CL600 WHEN UNABLE TO PRESSURIZE THEIR ACFT, RETURN AND LAND AT ATL, GA.

Narrative: ON CLBOUT FROM ATLANTA, ENRTE TO PANAMA CITY (PFN), WE LOST OUR L AIR CONDITIONING PACK AND CABIN PRESSURIZATION PASSING THROUGH 10000 FT MSL. WE STOPPED THE CLB AND LEVELED OFF AT 10000 FT AND TOLD ATC WE COULD NOT CLB, AND NEEDED VECTORS AND TIME TO 'CHK THINGS OUT.' WE RAN ALL APPROPRIATE CHKLISTS AND COULD NOT REGAIN CABIN PRESSURIZATION. AFTER CONSULTING WITH COMPANY MAINT AND DISPATCHER, I DECLARED AN EMER FOR POSSIBLE STRUCTURAL DAMAGE AND RETURNED TO ATLANTA. WE HAD THE CRASH TRUCKS CHK THE ACFT FOR ANY EXTERIOR DAMAGE AFTER LNDG. NO DAMAGE WAS FOUND AND WE TAXIED TO THE GATE.

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.

Emergency declared by the flight crewof a CL600 when unable to pressurize their aircraft, return and land at atl, GA.