|37000 Feet||Browse and search NASA's
Aviation Safety Reporting System
|Locale Reference||airport : zzz.airport|
|Altitude||agl single value : 0|
|Operator||common carrier : air carrier|
|Make Model Name||B757 Undifferentiated or Other Model|
|Operating Under FAR Part||Part 121|
|Flight Phase||ground : maintenance|
|Affiliation||company : air carrier|
|Anomaly||aircraft equipment problem : critical|
maintenance problem : improper maintenance
maintenance problem : improper documentation
non adherence : published procedure
non adherence : far
|Resolutory Action||none taken : detected after the fact|
|Maintenance||performance deficiency : non compliance with legal requirements|
performance deficiency : installation
|Problem Areas||Maintenance Human Performance|
|Primary Problem||Maintenance Human Performance|
I was working placarded item -- terrain warning -- EICAS message. No problem was found with the system; but previous station has troubleshoot problem to #1 electronic flight instrument cover panel (ehse). From ipc obtained part # X. I went to the aircraft with this part in hand. The part already installed on aircraft was Y. I incorrectly assumed I had obtained the wrong part for the aircraft. I returned the X to stock; drew out a Y and replaced the ehse with a like part. The correct part was installed before the aircraft flew by next shift amt. Wrong part already on aircraft.
Original NASA ASRS Text
Title: A B757 WITH A TERRAIN WARNING WRITE-UP. PREVIOUS STATION TROUBLESHOT PROB TO #1 FLT INST PANEL. PART NUMBER TAKEN FROM INSTALLED PANEL AND IDENTICAL PART NUMBER PANEL REPLACED WRONG PART INSTALLED ON ACFT A SECOND TIME.
Narrative: I WAS WORKING PLACARDED ITEM -- TERRAIN WARNING -- EICAS MESSAGE. NO PROB WAS FOUND WITH THE SYS; BUT PREVIOUS STATION HAS TROUBLESHOOT PROB TO #1 ELECTRONIC FLT INST COVER PANEL (EHSE). FROM IPC OBTAINED PART # X. I WENT TO THE ACFT WITH THIS PART IN HAND. THE PART ALREADY INSTALLED ON ACFT WAS Y. I INCORRECTLY ASSUMED I HAD OBTAINED THE WRONG PART FOR THE ACFT. I RETURNED THE X TO STOCK; DREW OUT A Y AND REPLACED THE EHSE WITH A LIKE PART. THE CORRECT PART WAS INSTALLED BEFORE THE ACFT FLEW BY NEXT SHIFT AMT. WRONG PART ALREADY ON ACFT.
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.