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37000 Feet | Browse and search NASA's Aviation Safety Reporting System |
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MD80 performed emergency descent from FL310-10000 ft after pack failed and cabin altitude exceeded 10000 ft.
| Attributes | |
| ACN | 578450 |
| Time | |
| Date | 200304 |
| Day | Fri |
| Local Time Of Day | 0601 To 1200 |
| Place | |
| Locale Reference | intersection : birle |
| State Reference | TX |
| Altitude | msl single value : 31000 |
| Environment | |
| Light | Daylight |
| Aircraft 1 | |
| Controlling Facilities | artcc : zfw.artcc |
| Operator | common carrier : air carrier |
| Make Model Name | MD-80 Super 80 |
| 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 : atp |
| ASRS Report | 578450 |
| 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 : pressure differential indicator other flight crewa |
| Resolutory Action | controller : issued new clearance other |
| Consequence | other other |
| Supplementary | |
| Problem Areas | Aircraft |
| Primary Problem | Aircraft |
Narrative:
While entering holding, and descending on arrival, cabin left pack quit. Cabin climbed rapidly at over 1500 FPM. Emergency procedures stopped cabin climb at 8000 ft. A few moments later, the left pack quit again, and cabin went above 10000 ft. Accomplished emergency descent to 10000 ft. Continued flight crew to dfw and landed without incident.
Original NASA ASRS Text
Title: MD80 PERFORMED EMER DSCNT FROM FL310-10000 FT AFTER PACK FAILED AND CABIN ALT EXCEEDED 10000 FT.
Narrative: WHILE ENTERING HOLDING, AND DSNDING ON ARR, CABIN L PACK QUIT. CABIN CLBED RAPIDLY AT OVER 1500 FPM. EMER PROCS STOPPED CABIN CLB AT 8000 FT. A FEW MOMENTS LATER, THE L PACK QUIT AGAIN, AND CABIN WENT ABOVE 10000 FT. ACCOMPLISHED EMER DSCNT TO 10000 FT. CONTINUED FLT CREW TO DFW AND LANDED WITHOUT INCIDENT.
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.