Narrative:

We were assigned to ferry an airplane. The aircraft was at the maintenance hangar and we closed the door and I armed the mcd (main cabin door). When we started engine 1; we got an EICAS message that required a ground reset; which we could not clear. The message was engine 1 short dispatch. Before maintenance came on the aircraft I disarmed the mcd. Maintenance fixed the issue but before they started the engine to troubleshoot the problem; they asked me to close the mcd. Out of habit; I armed the door and when they were done; I was sitting in 1A and one of the maintenance personnel opened the mcd as it was armed.

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Original NASA ASRS Text

Title: E175 flight crew reported that; when arriving at the aircraft; maintenance failed to disarm door prior to opening it activating the slide.

Narrative: We were assigned to ferry an airplane. The aircraft was at the maintenance hangar and we closed the door and I armed the MCD (Main Cabin Door). When we started engine 1; we got an EICAS message that required a ground reset; which we could not clear. The message was Engine 1 short dispatch. Before maintenance came on the aircraft I disarmed the MCD. Maintenance fixed the issue but before they started the engine to troubleshoot the problem; they asked me to close the MCD. Out of habit; I armed the door and when they were done; I was sitting in 1A and one of the maintenance personnel opened the MCD as it was armed.

Data retrieved from NASA's ASRS site 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.