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MD82 flight crew experienced pressurization anomalies during initial climb which were corrected then total failure passing through FL180. Oxygen masks are donned and an emergency descent initiated with manual control of pressurization established during descent. The crew diverts and maintenance defers the pressurization system and the flight is dispatched to the original destination with the first officer controlling the manual pressurization.
| Attributes | |
| ACN | 1077031 |
| Time | |
| Date | 201303 |
| Local Time Of Day | 1801-2400 |
| Place | |
| Locale Reference | ZZZ.ARTCC |
| State Reference | US |
| Aircraft 1 | |
| Make Model Name | MD-80 Series (DC-9-80) Undifferentiated or Other Model |
| Operating Under FAR Part | Part 121 |
| Flight Phase | Climb |
| Component | |
| Aircraft Component | Pressurization Control System |
| Person 1 | |
| Function | Pilot Not Flying Captain |
| Person 2 | |
| Function | First Officer Pilot Flying |
| Qualification | Flight Crew Air Transport Pilot (ATP) |
| Experience | Flight Crew Total 14020 |
| Events | |
| Anomaly | Aircraft Equipment Problem Critical |
Narrative:
After departing observed 2 blue lights on pressurization controller. Controller was successfully reset by captain. Flow gauges and position of outflow valve were normal. Climbing through approximately 18;000 observed 'cabin altitude warning'. Cabin altitude warning/rapid depressurization red box was followed; cabin had climbed to 11;000 and started down with accomplishment of red box. First officer flew aircraft to 8;000 and entered holding to burn off fuel. Captain declared emergency and landed aircraft at [diversion airport]. Maintenance determined both primary and secondary controllers had failed.
Original NASA ASRS Text
Title: MD82 flight crew experienced pressurization anomalies during initial climb which were corrected then total failure passing through FL180. Oxygen masks are donned and an emergency descent initiated with manual control of pressurization established during descent. The crew diverts and Maintenance defers the pressurization system and the flight is dispatched to the original destination with the First Officer controlling the manual pressurization.
Narrative: After departing observed 2 blue lights on pressurization controller. Controller was successfully reset by Captain. Flow gauges and position of outflow valve were normal. Climbing through approximately 18;000 observed 'cabin altitude warning'. Cabin Altitude warning/rapid depressurization red box was followed; cabin had climbed to 11;000 and started down with accomplishment of red box. First Officer flew aircraft to 8;000 and entered holding to burn off fuel. Captain declared emergency and landed aircraft at [diversion airport]. Maintenance determined both primary and secondary controllers had failed.
Data retrieved from NASA's ASRS site as of July 2013 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.