Loss of cabin pressure. Emergency descent. Unable callback.

Attributes
ACN	112097
Time
Date	198905
Day	Fri
Local Time Of Day	0601 To 1200
Place
Locale Reference	atc facility : dbl
State Reference	CO
Altitude	msl bound lower : 30000 msl bound upper : 30000
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Controlling Facilities	artcc : zdv
Operator	common carrier : air carrier
Make Model Name	Large Transport, Low Wing, 3 Turbojet Eng
Flight Phase	climbout : intermediate altitude other
Flight Plan	IFR
Person 1
Affiliation	company : air carrier
Function	flight crew : captain oversight : pic
Qualification	pilot : atp
Experience	flight time last 90 days : 100 flight time total : 9000 flight time type : 4000
ASRS Report	112097
Person 2
Affiliation	company : air carrier
Function	flight crew : first officer
Qualification	pilot : instrument pilot : flight engineer pilot : commercial pilot : cfi pilot : atp
Experience	flight time last 90 days : 100 flight time total : 6500 flight time type : 100
ASRS Report	112123
Events
Anomaly	aircraft equipment problem : critical other anomaly other
Independent Detector	other flight crewa
Resolutory Action	controller : issued new clearance flight crew : overcame equipment problem flight crew : declared emergency none taken : anomaly accepted
Consequence	Other
Supplementary
Primary Problem	Aircraft

Narrative:

Lost cabin pressurization, declared an emergency. Accomplished emergency descent air carrier airline's procedures. Returned to denver for uneventful landing. Supplemental information from acn 112123: when level at 15,000 terminated emergency.

Original NASA ASRS Text

Title: LOSS OF CABIN PRESSURE. EMERGENCY DESCENT. UNABLE CALLBACK.

Narrative: LOST CABIN PRESSURIZATION, DECLARED AN EMER. ACCOMPLISHED EMER DESCENT ACR AIRLINE'S PROCS. RETURNED TO DENVER FOR UNEVENTFUL LNDG. SUPPLEMENTAL INFORMATION FROM ACN 112123: WHEN LEVEL AT 15,000 TERMINATED EMER.

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