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A B757-200 pressurization failed in the automatic mode. After declaring an emergency and descending the manual mode was selected and cabin control was regained. The flight diverted to an enroute airport after the emergency was canceled.
| Attributes | |
| ACN | 890164 |
| Time | |
| Date | 201005 |
| Local Time Of Day | 1201-1800 |
| Place | |
| Locale Reference | ZZZ.ARTCC |
| State Reference | US |
| Environment | |
| Flight Conditions | VMC |
| Light | Daylight |
| Aircraft 1 | |
| Make Model Name | B757-200 |
| Operating Under FAR Part | Part 121 |
| Flight Phase | Cruise |
| Flight Plan | IFR |
| Component | |
| Aircraft Component | Pressurization Control System |
| Person 1 | |
| Function | Captain Pilot Not Flying |
| Qualification | Flight Crew Air Transport Pilot (ATP) |
| Experience | Flight Crew Last 90 Days 240 Flight Crew Total 20000 Flight Crew Type 5000 |
| Person 2 | |
| Function | Pilot Flying First Officer |
| Experience | Flight Crew Last 90 Days 150 Flight Crew Total 14000 Flight Crew Type 5000 |
| Events | |
| Anomaly | Aircraft Equipment Problem Critical |
Narrative:
Normal climb to FL380 we got a 'cabin attendant altitude' EICAS message. We donned oxygen and established communications. The cabin altitude was observed to be above 10;000'. I selected automatic 1; no change. Notified ATC of pressurization problem and was given a descent to FL360. I declared an emergency and was given further descent; initially to FL240. The QRH and book reference was run. During descent I selected manual and reestablished control of cabin pressure; masks did not deploy in cabin. The first officer was flying and handled descent and ATC while I communicated with dispatch and cabin. During descent with pressurization under control in manual we cancelled the emergency handling. With coordination from dispatch we diverted for a normal approach and landing.
Original NASA ASRS Text
Title: A B757-200 pressurization failed in the AUTO mode. After declaring an emergency and descending the MANUAL mode was selected and cabin control was regained. The flight diverted to an enroute airport after the emergency was canceled.
Narrative: Normal climb to FL380 we got a 'CAB ALT' EICAS message. We donned oxygen and established communications. The cabin altitude was observed to be above 10;000'. I selected AUTO 1; no change. Notified ATC of pressurization problem and was given a descent to FL360. I declared an emergency and was given further descent; initially to FL240. The QRH and book reference was run. During descent I selected MANUAL and reestablished control of cabin pressure; masks did not deploy in cabin. The First Officer was flying and handled descent and ATC while I communicated with dispatch and cabin. During descent with pressurization under control in manual we cancelled the emergency handling. With coordination from Dispatch we diverted for a normal approach and landing.
Data retrieved from NASA's ASRS site as of April 2012 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.