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A DC9-30 in cruise at FL280 declared an emergency and descended due to loss of cabin pressure in automatic and manual modes.
| Attributes | |
| ACN | 398707 |
| Time | |
| Date | 199804 |
| Day | Mon |
| Local Time Of Day | 1801 To 2400 |
| Place | |
| Locale Reference | atc facility : mcw |
| State Reference | IA |
| Altitude | msl bound lower : 28000 msl bound upper : 28000 |
| Environment | |
| Flight Conditions | VMC |
| Light | Daylight |
| Aircraft 1 | |
| Controlling Facilities | artcc : zmp |
| Operator | common carrier : air carrier |
| Make Model Name | DC-9 30 |
| Operating Under FAR Part | Part 121 |
| Flight Phase | cruise other |
| Route In Use | enroute : on vectors |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | company : air carrier |
| Function | flight crew : captain oversight : pic |
| Qualification | pilot : atp pilot : instrument pilot : commercial |
| Experience | flight time last 90 days : 150 flight time total : 13000 flight time type : 7000 |
| ASRS Report | 398707 |
| Person 2 | |
| Affiliation | company : air carrier |
| Function | flight crew : first officer |
| Qualification | pilot : commercial pilot : instrument |
| Events | |
| Anomaly | aircraft equipment problem : critical other anomaly other |
| Independent Detector | aircraft equipment other aircraft equipment : unspecified other flight crewa |
| Resolutory Action | flight crew : declared emergency none taken : detected after the fact other |
| Consequence | Other |
| Supplementary | |
| Primary Problem | Aircraft |
Narrative:
At cruise cabin started climbing. Went through emergency procedure, could not control cabin in automatic or manual. Declared emergency for descent to 10000 ft. Continued flight to msp at 10000 ft and landing without any further events. Callback conversation with reporter revealed the following information: the reporter stated the aircraft was a DC9-30 and the reporter was not advised of the maintenance action taken to correct the loss of pressurization.
Original NASA ASRS Text
Title: A DC9-30 IN CRUISE AT FL280 DECLARED AN EMER AND DSNDED DUE TO LOSS OF CABIN PRESSURE IN AUTO AND MANUAL MODES.
Narrative: AT CRUISE CABIN STARTED CLBING. WENT THROUGH EMER PROC, COULD NOT CTL CABIN IN AUTO OR MANUAL. DECLARED EMER FOR DSCNT TO 10000 FT. CONTINUED FLT TO MSP AT 10000 FT AND LNDG WITHOUT ANY FURTHER EVENTS. CALLBACK CONVERSATION WITH RPTR REVEALED THE FOLLOWING INFO: THE RPTR STATED THE ACFT WAS A DC9-30 AND THE RPTR WAS NOT ADVISED OF THE MAINT ACTION TAKEN TO CORRECT THE LOSS OF PRESSURIZATION.
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.