Narrative:

On apr/sun/01, I was working on an air carrier X B757-200. I was assigned to troubleshoot a hydraulic pressure problem. We had narrowed it down to the center electric pressure case drain filter pump module. I replaced the unit with a loaner part from air carrier Y airlines due to lack of parts at air carrier X. The part was delivered to me on the ramp of ZZZ airport by air carrier X stores department. I opened the container and removed the part and documentation. I was not familiar with the serviceability tag but saw serviceable stamped across the tag, verified the part and serial numbers and continued to install the part on the aircraft per air carrier X maintenance manuals. On jun/thu/01, I was contacted by management and informed that the part that I had installed on aircraft XXX was not serviceable at the time of installation due to an expired rotatable shelf life which had expired on feb/sun/01. On jun/wed/01, an FAA inspector had requested to confirm the validity of a serviceable tag. An inspection was conducted and could not confirm serviceability of the part so the aircraft's next flight was canceled and the part was changed. I believe that this incident was caused by poor inventory management on the part of air carrier Y airlines. The part had been expired for more than 2 months and was still in their serviceable stock. If the part had been removed from their stock on feb/sun/01, I would have never received it and this incident would not have occurred. I will do my part to see that this never happens again by inspecting every detail of the documentation and if unsure consult management or store's personnel.

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Original NASA ASRS Text

Title: B757-200 MECH INSTALLED A 'BORROWED' PART THAT HAD AN EXPIRED SHELF LIFE.

Narrative: ON APR/SUN/01, I WAS WORKING ON AN ACR X B757-200. I WAS ASSIGNED TO TROUBLESHOOT A HYD PRESSURE PROB. WE HAD NARROWED IT DOWN TO THE CTR ELECTRIC PRESSURE CASE DRAIN FILTER PUMP MODULE. I REPLACED THE UNIT WITH A LOANER PART FROM ACR Y AIRLINES DUE TO LACK OF PARTS AT ACR X. THE PART WAS DELIVERED TO ME ON THE RAMP OF ZZZ ARPT BY ACR X STORES DEPT. I OPENED THE CONTAINER AND REMOVED THE PART AND DOCUMENTATION. I WAS NOT FAMILIAR WITH THE SERVICEABILITY TAG BUT SAW SERVICEABLE STAMPED ACROSS THE TAG, VERIFIED THE PART AND SERIAL NUMBERS AND CONTINUED TO INSTALL THE PART ON THE ACFT PER ACR X MAINT MANUALS. ON JUN/THU/01, I WAS CONTACTED BY MGMNT AND INFORMED THAT THE PART THAT I HAD INSTALLED ON ACFT XXX WAS NOT SERVICEABLE AT THE TIME OF INSTALLATION DUE TO AN EXPIRED ROTATABLE SHELF LIFE WHICH HAD EXPIRED ON FEB/SUN/01. ON JUN/WED/01, AN FAA INSPECTOR HAD REQUESTED TO CONFIRM THE VALIDITY OF A SERVICEABLE TAG. AN INSPECTION WAS CONDUCTED AND COULD NOT CONFIRM SERVICEABILITY OF THE PART SO THE ACFT'S NEXT FLT WAS CANCELED AND THE PART WAS CHANGED. I BELIEVE THAT THIS INCIDENT WAS CAUSED BY POOR INVENTORY MGMNT ON THE PART OF ACR Y AIRLINES. THE PART HAD BEEN EXPIRED FOR MORE THAN 2 MONTHS AND WAS STILL IN THEIR SERVICEABLE STOCK. IF THE PART HAD BEEN REMOVED FROM THEIR STOCK ON FEB/SUN/01, I WOULD HAVE NEVER RECEIVED IT AND THIS INCIDENT WOULD NOT HAVE OCCURRED. I WILL DO MY PART TO SEE THAT THIS NEVER HAPPENS AGAIN BY INSPECTING EVERY DETAIL OF THE DOCUMENTATION AND IF UNSURE CONSULT MGMNT OR STORE'S PERSONNEL.

Data retrieved from NASA's ASRS site as of July 2007 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.