Narrative:

After troubleshooting the aircraft for right/H nav lights being inop; it was determined that the fwd and aft nav lights required replacement. I had grabbed a nav light off of the shelf with assistance from stores people; but inadvertently took the left/H light assy out to the aircraft. I assisted the other mechanic in taking the winglet panel off and then proceeded to replace the aft light assembly while the other mechanic replaced the forward one. After we completed the task; we performed the ops check of the system but no one noticed that the wrong color nav light was installed. We put the aircraft back together and I completed the paperwork in xxxxx. Again; it was not noticed when the paperwork was completed and the part was returned back to stores. We were probably rushing to get the job done and we did not pay attention to detail as much as we should have. A lot of things went wrong to set this up and we should have verified that we had the correct part in the first place to prevent this from happening as well as paying closer attention to the parts tag and ops check. In the future; that is exactly what I will do to keep this from happening again. Also; I signed off the work performed on both the fwd and aft nav lights even though I only replaced the aft nav light. In the future; I will not sign off work that I did not complete all of the work. I was unable to see the forward nav light when we ops checked the lights and therefore should not have taken all the responsibility for the sign off.

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Original NASA ASRS Text

Title: Technician reported feeling rushed and pressured contributed in him installing an incorrect part on aircraft.

Narrative: After troubleshooting the aircraft for R/H nav lights being inop; it was determined that the fwd and aft nav lights required replacement. I had grabbed a nav light off of the shelf with assistance from stores people; but inadvertently took the L/H light assy out to the aircraft. I assisted the other mechanic in taking the winglet panel off and then proceeded to replace the aft light assembly while the other mechanic replaced the forward one. After we completed the task; we performed the ops check of the system but no one noticed that the wrong color nav light was installed. We put the aircraft back together and I completed the paperwork in XXXXX. Again; it was not noticed when the paperwork was completed and the part was returned back to stores. We were probably rushing to get the job done and we did not pay attention to detail as much as we should have. A lot of things went wrong to set this up and we should have verified that we had the correct part in the first place to prevent this from happening as well as paying closer attention to the parts tag and ops check. In the future; that is exactly what I will do to keep this from happening again. Also; I signed off the work performed on both the fwd and aft nav lights even though I only replaced the aft nav light. In the future; I will not sign off work that I did not complete all of the work. I was unable to see the forward nav light when we ops checked the lights and therefore should not have taken all the responsibility for the sign off.

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.