B767 crew made an emergency descent when they lost cabin pressurization.

Attributes
ACN	426007
Time
Date	199901
Day	Thu
Local Time Of Day	1201 To 1800
Place
Locale Reference	atc facility : txkf
State Reference	FO
Altitude	msl bound lower : 20000 msl bound upper : 41000
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Operator	common carrier : air carrier
Make Model Name	B767 Undifferentiated or Other Model
Navigation In Use	Other
Flight Phase	cruise other descent other other
Route In Use	enroute : other oceanic enroute : atlantic enroute other
Flight Plan	IFR
Person 1
Affiliation	company : air carrier
Function	flight crew : captain oversight : pic
ASRS Report	426007
Person 2
Affiliation	company : air carrier
Function	flight crew : first officer
Events
Anomaly	aircraft equipment problem : critical other anomaly other
Independent Detector	aircraft equipment other aircraft equipment : unspecified other flight crewa
Resolutory Action	flight crew : overcame equipment problem flight crew : declared emergency other
Consequence	Other

Narrative:

Pressurization problem. Required a quick descent from FL410 to FL200. Ny oceanic was terrific.

Original NASA ASRS Text

Title: B767 CREW MADE AN EMER DSCNT WHEN THEY LOST CABIN PRESSURIZATION.

Narrative: PRESSURIZATION PROB. REQUIRED A QUICK DSCNT FROM FL410 TO FL200. NY OCEANIC WAS TERRIFIC.

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.