A B757 crew was forced to make emergency descent because of a loss of cabin pressurization.

Attributes
ACN	415075
Time
Date	199809
Day	Thu
Local Time Of Day	0601 To 1200
Place
Locale Reference	atc facility : sgf
State Reference	MO
Altitude	msl bound lower : 37000 msl bound upper : 37000
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Controlling Facilities	artcc : zme tower : lrd
Operator	common carrier : air carrier
Make Model Name	B757-200
Operating Under FAR Part	Part 121
Navigation In Use	Other Other
Flight Phase	cruise other
Flight Plan	IFR
Person 1
Affiliation	company : air carrier
Function	flight crew : first officer
Qualification	pilot : commercial pilot : instrument
ASRS Report	415075
Person 2
Affiliation	company : air carrier
Function	flight crew : captain oversight : pic
Qualification	pilot : atp
Events
Anomaly	aircraft equipment problem : critical other anomaly other
Independent Detector	other flight crewa
Resolutory Action	flight crew : overcame equipment problem flight crew : declared emergency other
Consequence	Other
Supplementary
Primary Problem	Aircraft

Narrative:

Cabin pressurization problem. Level at FL370, received cabin altitude warning. Declared emergency and began descent. Regained control of cabin and leveled at FL240. Rest of flight normal at FL240.

Original NASA ASRS Text

Title: A B757 CREW WAS FORCED TO MAKE EMER DSCNT BECAUSE OF A LOSS OF CABIN PRESSURIZATION.

Narrative: CABIN PRESSURIZATION PROB. LEVEL AT FL370, RECEIVED CABIN ALT WARNING. DECLARED EMER AND BEGAN DSCNT. REGAINED CTL OF CABIN AND LEVELED AT FL240. REST OF FLT NORMAL AT FL240.

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.