<< >> NASA ASRS Report 442648, June 1999

A B727 flight crew lost pressurization, declared an emergency, and followed the QRH procedures prior to landing at slc.

Attributes
ACN	442648
Time
Date	199906
Day	Wed
Local Time Of Day	0601 To 1200
Place
Locale Reference	navaid : slc.vor
State Reference	UT
Altitude	msl single value : 33000
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Controlling Facilities	artcc : zlc.artcc
Operator	common carrier : air carrier
Make Model Name	B727-200
Operating Under FAR Part	Part 121
Navigation In Use	other vortac
Flight Phase	cruise : level
Flight Plan	IFR
Person 1
Affiliation	company : air carrier
Function	flight crew : captain oversight : pic
Qualification	pilot : multi engine pilot : instrument pilot : commercial pilot : cfi pilot : atp pilot : flight engineer
Experience	flight time last 90 days : 120 flight time total : 13000 flight time type : 7000
ASRS Report	442648
Person 2
Affiliation	company : air carrier
Function	flight crew : first officer
Qualification	pilot : multi engine pilot : commercial pilot : instrument
Events
Anomaly	aircraft equipment problem : critical
Independent Detector	aircraft equipment other aircraft equipment : cabin altitude warning other flight crewa other flight crewb other other : 3
Resolutory Action	controller : issued new clearance flight crew : declared emergency flight crew : landed in emergency condition flight crew : diverted to another airport
Consequence	other
Supplementary
Problem Areas	Aircraft
Primary Problem	Aircraft

Narrative:

Had been at level cruise flight for 45 mins. Cabin began to depressurize at a rate of 1500 FPM. Cabin altitude warning horn sounded almost immediately. Donned oxygen mask, established communication with other crew members, pulled out quick response card emergency card, began immediate descent to lower altitude. Entered holding pattern to sort out checklist, advise dispatch. All agreed to divert to slc. Mechanics could not pressurize the aircraft for over 3 hours. Remainder of trip canceled.

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Original NASA ASRS Text

Title: A B727 FLC LOST PRESSURIZATION, DECLARED AN EMER, AND FOLLOWED THE QRH PROCS PRIOR TO LNDG AT SLC.

Narrative: HAD BEEN AT LEVEL CRUISE FLT FOR 45 MINS. CABIN BEGAN TO DEPRESSURIZE AT A RATE OF 1500 FPM. CABIN ALT WARNING HORN SOUNDED ALMOST IMMEDIATELY. DONNED OXYGEN MASK, ESTABLISHED COM WITH OTHER CREW MEMBERS, PULLED OUT QUICK RESPONSE CARD EMER CARD, BEGAN IMMEDIATE DSCNT TO LOWER ALT. ENTERED HOLDING PATTERN TO SORT OUT CHKLIST, ADVISE DISPATCH. ALL AGREED TO DIVERT TO SLC. MECHS COULD NOT PRESSURIZE THE ACFT FOR OVER 3 HRS. REMAINDER OF TRIP CANCELED.

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.