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An air carrier large transport had a pressurization problem. The crew dumped fuel and landed uneventfully at an en route airport. There was no report of damage or injuries.
| Attributes | |
| ACN | 208622 |
| Time | |
| Date | 199204 |
| Day | Mon |
| Local Time Of Day | 0601 To 1200 |
| Place | |
| Locale Reference | atc facility : aex airport : msy |
| State Reference | LA |
| Altitude | msl bound lower : 33000 msl bound upper : 33000 |
| Environment | |
| Flight Conditions | VMC |
| Light | Daylight |
| Aircraft 1 | |
| Controlling Facilities | artcc : zhu artcc : zhu |
| Operator | common carrier : air carrier |
| Make Model Name | Large Transport, Low Wing, 3 Turbojet Eng |
| Flight Phase | cruise other other |
| Route In Use | enroute airway : zhu |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | company : air carrier |
| Function | flight crew : captain oversight : pic |
| Qualification | pilot : atp |
| Experience | flight time last 90 days : 100 flight time total : 10000 flight time type : 2000 |
| ASRS Report | 208622 |
| Person 2 | |
| Affiliation | company : air carrier |
| Function | flight crew : first officer |
| Qualification | pilot : instrument pilot : commercial |
| Experience | flight time last 90 days : 210 flight time total : 6000 |
| ASRS Report | 208627 |
| Events | |
| Anomaly | aircraft equipment problem : critical |
| Independent Detector | aircraft equipment other aircraft equipment : unspecified other flight crewa |
| Resolutory Action | controller : issued new clearance flight crew : declared emergency flight crew : exited adverse environment other |
| Consequence | Other |
| Supplementary | |
| Primary Problem | Aircraft |
Narrative:
During cruise a pressurization system malfunction occurred which required a descent to a lower altitude. We contacted ATC and requested a descent to FL240 and then a further descent to 10000 ft. The aircraft was leveled at 10000 ft and the flight diverted to msy. 25 mi northwest of msy, 4000 pounds of fuel was dumped and the aircraft landed msy without incident.
Original NASA ASRS Text
Title: AN ACR LGT HAD A PRESSURIZATION PROBLEM. THE CREW DUMPED FUEL AND LANDED UNEVENTFULLY AT AN ENRTE ARPT. THERE WAS NO RPT OF DAMAGE OR INJURIES.
Narrative: DURING CRUISE A PRESSURIZATION SYS MALFUNCTION OCCURRED WHICH REQUIRED A DSCNT TO A LOWER ALT. WE CONTACTED ATC AND REQUESTED A DSCNT TO FL240 AND THEN A FURTHER DSCNT TO 10000 FT. THE ACFT WAS LEVELED AT 10000 FT AND THE FLT DIVERTED TO MSY. 25 MI NW OF MSY, 4000 POUNDS OF FUEL WAS DUMPED AND THE ACFT LANDED MSY 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.