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MD80 captain reports the inability to maintain cabin pressurization at FL320 with wing and engine anti-ice on; after being dispatched with one pack inoperative.
| Attributes | |
| ACN | 839229 |
| Time | |
| Date | 200906 |
| Local Time Of Day | 1801-2400 |
| Place | |
| Locale Reference | ZZZ.Airport |
| State Reference | US |
| Environment | |
| Light | Daylight |
| Aircraft 1 | |
| Make Model Name | MD-80 Series (DC-9-80) Undifferentiated or Other Model |
| Operating Under FAR Part | Part 121 |
| Flight Phase | Cruise |
| Flight Plan | IFR |
| Component | |
| Aircraft Component | Pneumatic System |
| Person 1 | |
| Function | Captain Pilot Flying |
| Events | |
| Anomaly | Aircraft Equipment Problem Critical Deviation - Procedural FAR Deviation - Procedural Published Material / Policy Deviation - Procedural MEL Inflight Event / Encounter Other / Unknown |
Narrative:
Aircraft was dispatched with one pressurization system inoperative. While leveling off at FL320; we encountered icing. After putting on engine and wing anti-ice; cabin starts to climb. We notice it; don oxygen masks; go to manual pressurization. I ask and receive clearance to lower altitude. Once out of icing conditions; I turn off anti-ice and at FL240 cabin stabilizes and we proceed to destination after we recalculate new fuel burn.
Original NASA ASRS Text
Title: MD80 Captain reports the inability to maintain cabin pressurization at FL320 with wing and engine anti-ice on; after being dispatched with one pack inoperative.
Narrative: Aircraft was dispatched with one pressurization system inoperative. While leveling off at FL320; we encountered icing. After putting on engine and wing anti-ice; cabin starts to climb. We notice it; don oxygen masks; go to manual pressurization. I ask and receive clearance to lower altitude. Once out of icing conditions; I turn off anti-ice and at FL240 cabin stabilizes and we proceed to destination after we recalculate new fuel burn.
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.