Narrative:

ZZZ hangar X; day shift; aircraft X. Reference ZZZ [routine overnight layover check work]. Non-routine for [logbook deferral sheet] xxxxxxx. Working dfdau (digital flight data acquisition unit) fault. Replaced dfdau in accordance with (in accordance with) amm (aircraft maintenance manual) 31-xx-xx. Installation was complete except for [the] very last step of installation. I wrote a separate item on non-routine xxxxxxx; item number 5 on page 2 of 3. I wrote that; per amm 31-xx-xx-XXX step F (3); [one] must accomplish verification of aircraft number on the dfdau initialization page.is this to be accomplished on the dfdau computer; or done through the dfdau page on the mcdu (multipurpose control and display unit)? The amm steps were unclear and did not match what we were seeing on the aircraft. At [the] end of shift; I had called [operations control] for guidance. They were unsure how to advise us to proceed; and we were waiting to hear back from them. That is why I made sure to write a separate item for it. When I came in the next day; aircraft X was green and being delivered to the terminal for revenue service. I inquired how the open item was completed because I wanted to know for future reference. After trying to get a solid answer; no one in avionics said they worked it; and management could not give me an answer either.[the] maintenance supervisor was [the] acting supervisor on [today] and was also in [tomorrow]. I asked him how it had been completed. He told me someone had found an amm reference that covered it; and he asked an afternoon shift crew chief to go look at it. It was at that point I decided to follow up and check the paperwork once it had been entered into airvault. I was able to see it in airvault today. That is when I found item 5 of non-routine xxxxxxx to still be open/not signed for.this should've been caught when non-routine xxxxxxx was audited prior to aircraft release. Better communication between maintenance and supervision. Who was responsible for knowing that this issue was still open? The non-routine should not have passed audit.

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Original NASA ASRS Text

Title: Technician reported that an open maintenance item was overlooked on audit and the aircraft was delivered to the terminal for revenue service.

Narrative: ZZZ Hangar X; day shift; Aircraft X. Reference ZZZ [Routine Overnight Layover Check Work]. Non-routine for [Logbook Deferral Sheet] XXXXXXX. Working DFDAU (Digital Flight Data Acquisition Unit) fault. Replaced DFDAU IAW (In Accordance With) AMM (Aircraft Maintenance Manual) 31-XX-XX. Installation was complete except for [the] very last step of installation. I wrote a separate item on non-routine XXXXXXX; Item Number 5 on page 2 of 3. I wrote that; per AMM 31-XX-XX-XXX Step F (3); [one] must accomplish verification of aircraft number on the DFDAU initialization page.Is this to be accomplished on the DFDAU computer; or done through the DFDAU page on the MCDU (Multipurpose Control and Display Unit)? The AMM steps were unclear and did not match what we were seeing on the aircraft. At [the] end of shift; I had called [Operations Control] for guidance. They were unsure how to advise us to proceed; and we were waiting to hear back from them. That is why I made sure to write a separate item for it. When I came in the next day; Aircraft X was green and being delivered to the terminal for revenue service. I inquired how the open item was completed because I wanted to know for future reference. After trying to get a solid answer; no one in avionics said they worked it; and Management could not give me an answer either.[The] Maintenance Supervisor was [the] acting Supervisor on [today] and was also in [tomorrow]. I asked him how it had been completed. He told me someone had found an AMM reference that covered it; and he asked an afternoon shift Crew Chief to go look at it. It was at that point I decided to follow up and check the paperwork once it had been entered into AirVault. I was able to see it in AirVault today. That is when I found Item 5 of non-routine XXXXXXX to still be open/not signed for.This should've been caught when non-routine XXXXXXX was audited prior to aircraft release. Better communication between Maintenance and Supervision. Who was responsible for knowing that this issue was still open? The non-routine should not have passed audit.

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.