<< >> NASA ASRS Report 577831, March 2003

Lower altitude for a pressurization requested during an emergency declaration by the flight crew of an MD80 near vuz VOR, al.

Attributes
ACN	577831
Time
Date	200303
Day	Fri
Local Time Of Day	1201 To 1800
Place
Locale Reference	atc facility : ztl.artcc
State Reference	GA
Altitude	msl single value : 31000
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Controlling Facilities	artcc : ztl.artcc tower : lgb.tower
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
Flight Plan	IFR
Person 1
Affiliation	company : air carrier
Function	flight crew : captain oversight : pic
Qualification	pilot : flight engineer pilot : cfi pilot : atp
Experience	flight time last 90 days : 150 flight time total : 10000 flight time type : 1880
ASRS Report	577831
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 : issued new clearance flight crew : declared emergency flight crew : overcame equipment problem
Consequence	other
Supplementary
Problem Areas	Aircraft Flight Crew Human Performance
Primary Problem	Aircraft

Narrative:

At FL310, a cabin pressurization mechanical malfunction required an immediate descent. To get a lower altitude in a timely manner, we declared an emergency. At the new lower altitude, we terminated the emergency, as the pressurization system was operating operations normal.

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Original NASA ASRS Text

Title: LOWER ALT FOR A PRESSURIZATION REQUESTED DURING AN EMER DECLARATION BY THE FLT CREW OF AN MD80 NEAR VUZ VOR, AL.

Narrative: AT FL310, A CABIN PRESSURIZATION MECHANICAL MALFUNCTION REQUIRED AN IMMEDIATE DSCNT. TO GET A LOWER ALT IN A TIMELY MANNER, WE DECLARED AN EMER. AT THE NEW LOWER ALT, WE TERMINATED THE EMER, AS THE PRESSURIZATION SYS WAS OPERATING OPS NORMAL.

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.