 |
37000 Feet | Browse and search NASA's Aviation Safety Reporting System |
|
A B757 with the left pack MEL'ed had a temporary loss of cabin pressurization as the descent out of FL350 commenced after the EICAS alerted right pack inoperative and right pack off and while the QRH procedure was completed.
| Attributes | |
| ACN | 1044821 |
| Time | |
| Date | 201210 |
| Local Time Of Day | 0001-0600 |
| Place | |
| Locale Reference | ZZZ.ARTCC |
| State Reference | US |
| Environment | |
| Light | Night |
| Aircraft 1 | |
| Make Model Name | B757-200 |
| Operating Under FAR Part | Part 121 |
| Flight Phase | Descent |
| Flight Plan | IFR |
| Component | |
| Aircraft Component | Air Conditioning and Pressurization Pack |
| Person 1 | |
| Function | Captain Pilot Flying |
| Qualification | Flight Crew Air Transport Pilot (ATP) |
| Events | |
| Anomaly | Aircraft Equipment Problem Critical |
Narrative:
B757 single pack operation (right engine prsov; MEL 36-01). Shortly after top of descent (TOD); descending out of FL350; loss of remaining pack; left 'pack inoperative' followed by 'pack off.' temporary loss of cabin pressurization followed QRH procedure landed safely.
Original NASA ASRS Text
Title: A B757 with the Left PACK MEL'ed had a temporary loss of cabin pressurization as the descent out of FL350 commenced after the EICAS alerted RIGHT PACK INOP and RIGHT PACK OFF and while the QRH procedure was completed.
Narrative: B757 single pack operation (RIGHT ENG PRSOV; MEL 36-01). Shortly after Top of Descent (TOD); descending out of FL350; loss of remaining pack; Left 'PACK INOP' followed by 'PACK OFF.' Temporary loss of cabin pressurization followed QRH procedure landed safely.
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.