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.
Synopsis
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.
Second reporter narrative
Pushed from gate with Engine 2 bleed high pressure valve deferred. Reconfigured engine 2 bleed on runway as per deferred placard. After liftoff got Pack 1 fault and Engine 1 Bleed Abnormal Pressure ECAM. Pack 1 switch had fault light ON Engine 1 Bleed switch; no fault light; but system display page screen showed Engine 1 bleed valve closed. Followed ECAM. During ECAM complete screens normal briefing with First Officer was unable to recall faults/faults had cleared/ pack fault light out. Turned pack 1 ON. Seconds later; got Engine 2 Bleed fault overheat condition. Stopped climb. Followed this ECAM and turned Engine 2 Bleed off. Bleed system display page showed Engine 2 bleed closed (switch OFF) but also showed Engine 1 bleed closed but with switch ON. No bleed sources at that time; but aircraft stayed pressurized. Took vectors off course and descended to 10;000 for return to our departure airport. During descent Engine 1 bleed opened on its own and pack 1 operated normally. With Engine 2 bleed closed/switch OFF; I opened cross bleed selector to get both packs in case pack 1 or Engine 1 bleed faulted again. Balance of precautionary return to field was uneventful.
More incidents for this aircraft family →
Source: NASA Aviation Safety Reporting System (public domain). Reports are voluntary submissions and are not verified by NASA.