<< >> NASA ASRS Report 815458, December 2008

An md-80 flight crew lost pressurization; declared an emergency; descended to a lower altitude; and landed at their destination.

Attributes
ACN	815458
Time
Date	200812
Local Time Of Day	1201 To 1800
Place
Locale Reference	airport : zzz.airport
State Reference	US
Altitude	msl single value : 34000
Environment
Flight Conditions	IMC
Light	Daylight
Aircraft 1
Controlling Facilities	artcc : zzz.artcc
Operator	common carrier : air carrier
Make Model Name	MD-80 Series (DC-9-80) Undifferentiated or Other Model
Operating Under FAR Part	Part 121
Flight Phase	cruise : level descent : approach
Flight Plan	IFR
Person 1
Affiliation	company : air carrier
Function	flight crew : first officer
Qualification	pilot : atp pilot : commercial pilot : flight engineer pilot : instrument
Experience	flight time last 90 days : 50 flight time total : 11000 flight time type : 9000
ASRS Report	815458
Events
Anomaly	aircraft equipment problem : critical
Independent Detector	aircraft equipment other aircraft equipment : cabin altitude
Resolutory Action	flight crew : declared emergency
Supplementary
Problem Areas	Aircraft
Primary Problem	Aircraft

Narrative:

Cruising at FL340; the air flow to both packs reduced to zero. Cabin altitude was climbing. Asked center for an immediate descent to 10000 ft. When told to stand by for lower; we declared an emergency; informed ATC that we were descending; and descended immediately to 10000 ft. At conclusion of descent; we were about 100 mi from ZZZ which was our destination; so we proceeded to our destination and landed uneventfully.

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Original NASA ASRS Text

Title: AN MD-80 FLIGHT CREW LOST PRESSURIZATION; DECLARED AN EMERGENCY; DESCENDED TO A LOWER ALTITUDE; AND LANDED AT THEIR DESTINATION.

Narrative: CRUISING AT FL340; THE AIR FLOW TO BOTH PACKS REDUCED TO ZERO. CABIN ALT WAS CLBING. ASKED CTR FOR AN IMMEDIATE DSCNT TO 10000 FT. WHEN TOLD TO STAND BY FOR LOWER; WE DECLARED AN EMER; INFORMED ATC THAT WE WERE DSNDING; AND DSNDED IMMEDIATELY TO 10000 FT. AT CONCLUSION OF DSCNT; WE WERE ABOUT 100 MI FROM ZZZ WHICH WAS OUR DEST; SO WE PROCEEDED TO OUR DEST AND LANDED UNEVENTFULLY.

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