Narrative:

On jan/thu at about XA40 a gate call came over the radio asking maintenance to check the aft service door evacuate/evacuation slide for svcability. 2 of my fellow mechanics responded to the call and determined it necessary to change the slide. They called out on the radio informing us all of the situation. I heard the call and answered their request for aid. I pulled what I believed to be the appropriate slide and checked it using maintenance computer parts compatibility. I then called to confirm we had the slide and to inform them I would be delivering it to them as soon as possible. I also requested that they remove the old slide to expedite this task. Upon my arrival I found the canister positioned and ready for the new slide. Having helped secure the new slide; I immediately proceeded to enter this action into the aircraft logbook. All this was accomplished by XB00 for what I thought to be an on-time departure. Having had time now to reflect on the events of that morning; I believe a simple error while typing in the aircraft tail number was made; I also believe that the eagerness of our team to expedite this task and removing the slide from the work area prevented us (me) from noticing the difference between the slides. I was not aware that day of the necessity to verify the type of slides present throughout the aircraft or of their compatible.

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Original NASA ASRS Text

Title: A B737-700 WAS DISPATCHED WITH THE INCORRECT ESCAPE SLIDE INSTALLED AT THE R AFT SVC DOOR.

Narrative: ON JAN/THU AT ABOUT XA40 A GATE CALL CAME OVER THE RADIO ASKING MAINT TO CHK THE AFT SVC DOOR EVAC SLIDE FOR SVCABILITY. 2 OF MY FELLOW MECHS RESPONDED TO THE CALL AND DETERMINED IT NECESSARY TO CHANGE THE SLIDE. THEY CALLED OUT ON THE RADIO INFORMING US ALL OF THE SITUATION. I HEARD THE CALL AND ANSWERED THEIR REQUEST FOR AID. I PULLED WHAT I BELIEVED TO BE THE APPROPRIATE SLIDE AND CHKED IT USING MAINT COMPUTER PARTS COMPATIBILITY. I THEN CALLED TO CONFIRM WE HAD THE SLIDE AND TO INFORM THEM I WOULD BE DELIVERING IT TO THEM ASAP. I ALSO REQUESTED THAT THEY REMOVE THE OLD SLIDE TO EXPEDITE THIS TASK. UPON MY ARR I FOUND THE CANISTER POSITIONED AND READY FOR THE NEW SLIDE. HAVING HELPED SECURE THE NEW SLIDE; I IMMEDIATELY PROCEEDED TO ENTER THIS ACTION INTO THE ACFT LOGBOOK. ALL THIS WAS ACCOMPLISHED BY XB00 FOR WHAT I THOUGHT TO BE AN ON-TIME DEP. HAVING HAD TIME NOW TO REFLECT ON THE EVENTS OF THAT MORNING; I BELIEVE A SIMPLE ERROR WHILE TYPING IN THE ACFT TAIL NUMBER WAS MADE; I ALSO BELIEVE THAT THE EAGERNESS OF OUR TEAM TO EXPEDITE THIS TASK AND REMOVING THE SLIDE FROM THE WORK AREA PREVENTED US (ME) FROM NOTICING THE DIFFERENCE BTWN THE SLIDES. I WAS NOT AWARE THAT DAY OF THE NECESSITY TO VERIFY THE TYPE OF SLIDES PRESENT THROUGHOUT THE ACFT OR OF THEIR COMPATIBLE.

Data retrieved from NASA's ASRS site as of January 2009 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.