Narrative:

Upon starting my shift; june morning 2013; mechanic Y and I; as (mechanic X); were informed that we were going to [another airport] to replace a right hand; inboard slat disconnect sensor that was physically broken on a crj-900 aircraft. Arriving at the gate; I ordered the part with the part number given to me from maintenance tracking program parts computer system for merged air carrier aircraft; instead of [using] our air carrier's parts computer system. I transposed a crj-900 aircraft into a crj-200 aircraft in my head; mistakenly made a material request for a crj-200 and prepared tooling; manual references; etc. To leave [for the other airport]. It was not until we arrived back that I realized that I had the wrong serviceable tag; and that I had ordered the part from the wrong stock. I discovered I had the wrong type of serviceable tag for the aircraft I was working on. I was slightly rushed to get everything together to get to the plane on time; but I am in no way using that as an excuse for the mental lapse. I just did not pay close enough attention to which fleet I was to work on. I contacted the supervisor on duty. [Recommend] paying closer attention to what aircraft fleet I am working on. Aircraft out of service (aos).

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Original NASA ASRS Text

Title: A Line Aircraft Maintenance Technician (AMT) realizes he improperly ordered an inboard Slat Disconnect Sensor for a CRJ-900 aircraft through the parts computer ordering system of their merged Air Carrier's inventory program; instead of using their own parts ordering system. He noticed the incorrect serviceable tag after returning from a field trip.

Narrative: Upon starting my shift; June morning 2013; Mechanic Y and I; as (Mechanic X); were informed that we were going to [another airport] to replace a right hand; inboard Slat Disconnect Sensor that was physically broken on a CRJ-900 aircraft. Arriving at the gate; I ordered the part with the part number given to me from Maintenance Tracking Program parts computer system for merged Air Carrier aircraft; instead of [using] our Air Carrier's Parts Computer System. I transposed a CRJ-900 aircraft into a CRJ-200 aircraft in my head; mistakenly made a material request for a CRJ-200 and prepared tooling; manual references; etc. to leave [for the other airport]. It was not until we arrived back that I realized that I had the wrong Serviceable tag; and that I had ordered the part from the wrong stock. I discovered I had the wrong type of Serviceable tag for the aircraft I was working on. I was slightly rushed to get everything together to get to the plane on time; but I am in no way using that as an excuse for the mental lapse. I just did not pay close enough attention to which fleet I was to work on. I contacted the Supervisor on duty. [Recommend] paying closer attention to what aircraft fleet I am working on. Aircraft Out of Service (AOS).

Data retrieved from NASA's ASRS site as of July 2013 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.