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An A320 departed with the number two high pressure bleed deferred. After takeoff the number one bleed abnormal pressure regulator ECAM alerted. The crew returned to the departure airport.
| Attributes | |
| ACN | 839358 |
| Time | |
| Date | 200906 |
| Local Time Of Day | 1201-1800 |
| Place | |
| Locale Reference | ZZZ.Airport |
| State Reference | US |
| Aircraft 1 | |
| Make Model Name | A320 |
| Operating Under FAR Part | Part 121 |
| Flight Phase | Climb |
| Flight Plan | IFR |
| Component | |
| Aircraft Component | Pneumatic Valve/Bleed Valve |
| Person 1 | |
| Function | Pilot Flying |
| Experience | Flight Crew Last 90 Days 200 Flight Crew Total 14500 Flight Crew Type 9000 |
| Person 2 | |
| Function | Pilot Not Flying Captain |
| Experience | Flight Crew Last 90 Days 200 Flight Crew Total 20000 Flight Crew Type 8000 |
| Events | |
| Anomaly | Aircraft Equipment Problem Critical |
Narrative:
The #2 high pressure bleed valve was deferred. We followed the MEL procedure for it on the ground. Prior to takeoff; we had both bleeds and the cross bleed configured per the MEL. Shortly after takeoff; we got an 'ENG1 bleed abnormal pr' ECAM. I immediately turned on the autopilot while the captain ran the ECAM. The problem with the number one bleed was initially resolved but we asked ATC for fl 220 as a final altitude as a precaution. At about FL200; we again lost pressure from the number one bleed. With the high pressure valve deferred on the number 2 bleed; not having the number one bleed was going to leave us with no high pressure bleed capability. Shortly thereafter; the number 2 bleed faulted. I noticed that the bleed temperature was amber. At this point; we asked ATC for a descent to 10;000 feet and a return to our departure airport. During the descent; we got the number one bleed back and were able to keep it online with the number 2 bleed selected off. The aircraft did not depressurize and the return was uneventful.
Original NASA ASRS Text
Title: An A320 departed with the number two high pressure bleed deferred. After takeoff the number one bleed abnormal pressure regulator ECAM alerted. The crew returned to the departure airport.
Narrative: The #2 high pressure bleed valve was deferred. We followed the MEL procedure for it on the ground. Prior to takeoff; we had both bleeds and the cross bleed configured per the MEL. Shortly after takeoff; we got an 'ENG1 Bleed Abnormal PR' ECAM. I immediately turned on the autopilot while the Captain ran the ECAM. The problem with the number one bleed was initially resolved but we asked ATC for FL 220 as a final altitude as a precaution. At about FL200; we again lost pressure from the number one bleed. With the high pressure valve deferred on the number 2 bleed; not having the number one bleed was going to leave us with no high pressure bleed capability. Shortly thereafter; the number 2 bleed faulted. I noticed that the bleed temperature was amber. At this point; we asked ATC for a descent to 10;000 feet and a return to our departure airport. During the descent; we got the number one bleed back and were able to keep it online with the number 2 bleed selected off. The aircraft did not depressurize and the return was uneventful.
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.