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B777 captain reported loss of cabin pressure on climb out caused an expedited descent and an air turnback to a precautionary landing.
| Attributes | |
| ACN | 1762095 |
| Time | |
| Date | 202009 |
| Local Time Of Day | 0001-0600 |
| Place | |
| Locale Reference | ZZZZ.ARTCC |
| State Reference | FO |
| Environment | |
| Flight Conditions | IMC |
| Light | Daylight |
| Aircraft 1 | |
| Make Model Name | B777 Undifferentiated or Other Model |
| Operating Under FAR Part | Part 121 |
| Flight Phase | Initial Climb |
| Route In Use | Vectors |
| Flight Plan | IFR |
| Component | |
| Aircraft Component | Pressurization Outflow Valve |
| Person 1 | |
| Function | Captain Pilot Flying |
| Qualification | Flight Crew Air Transport Pilot (ATP) Flight Crew Instrument Flight Crew Multiengine |
| Events | |
| Anomaly | Aircraft Equipment Problem Less Severe Deviation - Procedural Published Material / Policy Deviation - Procedural MEL Deviation - Procedural Maintenance |
Narrative:
Status message outflow valve aft found on preflight. Put in logbook and item was deferred. Took off and passing 8;000 feet got cabin altitude caution message followed by cabin altitude warning at 14;000 feet on eicas. We donned the oxygen mask ran the associated checklist. We would need to descend to 10;000 feet and hold [and advised ATC]. Entered holding; configured airplane for approach and made an uneventful landing.
Original NASA ASRS Text
Title: B777 Captain reported loss of cabin pressure on climb out caused an expedited descent and an air turnback to a precautionary landing.
Narrative: Status MSG outflow valve aft found on preflight. Put in logbook and item was deferred. Took off and passing 8;000 feet got cabin altitude caution message followed by cabin altitude warning at 14;000 feet on Eicas. We donned the oxygen mask ran the associated checklist. We would need to descend to 10;000 feet and hold [and advised ATC]. Entered holding; configured airplane for approach and made an uneventful landing.
Data retrieved from NASA's ASRS site 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.