Originally Posted by
hec7or
I think it is likely that both controllers in this case may have sensed a temporary change in the cabin rate of climb caused by the door plug shifting position momentarily during previous flights and that this may have generated the reported AUTO FAIL in the previous incidences. It would also confirm why no fault with the pressurisation system was found and why the aircraft was released back to the line.
Any idea what fault codes that would generate in the CPCs? I imagine that the fault codes were read out via BITE or by a download after the incident flights. Also the fault code that tripped the AUTO FAIL on the ground. I wonder if that’s the same one?
I don’t think all the FC’s generate an AUTO FAIL, but you probably know better than I do.