Narrative:

When a co-worker took over wiring on an azvu rack, he noticed the previous worker had made an error in routing and corrected it. The wiring was for wire separation on the fuel quantity indicating system wiring. Upon talking to him and viewing the routing, I believe I also routed incorrectly, although I think the separation they are looking for is there. I remember having trouble trying to figure out exactly what they wanted done, correlating the drawings with each other and also remember others having questions about the rack when they were assigned this project. The project has you pull out the fqis wires and route them separately from the other wires. The remaining wires are also to be routed to avoid interference. It is in routing the remaining wires mostly that I believe I may have been in error, because when the co-worker did this rack he had to take connectors out of the rack on the computer side and then reinstall after rerouting. I don't recall doing this and this would make the routing different, and make a difference in understanding the project. I remember the project although fairly routine, was a little harder to understand than normal. I think the drawings could have been more clear and also should be more clarification on the written instructions, perhaps with more notes directly on the drawings. In hindsight, I should have sought more help, asked the engineer or studied it more, but I thought at the time I had figured it out.

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Original NASA ASRS Text

Title: AN A320 TECHNICIAN RPTS WORKING AN AIRWORTHINESS DIRECTIVE FOR WIRE SEPARATION OF FUEL QUANTITY INDICATING WIRING. TECHNICIAN MAY HAVE MISROUTED WIRE BUNDLE ON 10 ACFT.

Narrative: WHEN A CO-WORKER TOOK OVER WIRING ON AN AZVU RACK, HE NOTICED THE PREVIOUS WORKER HAD MADE AN ERROR IN ROUTING AND CORRECTED IT. THE WIRING WAS FOR WIRE SEPARATION ON THE FUEL QUANTITY INDICATING SYS WIRING. UPON TALKING TO HIM AND VIEWING THE ROUTING, I BELIEVE I ALSO ROUTED INCORRECTLY, ALTHOUGH I THINK THE SEPARATION THEY ARE LOOKING FOR IS THERE. I REMEMBER HAVING TROUBLE TRYING TO FIGURE OUT EXACTLY WHAT THEY WANTED DONE, CORRELATING THE DRAWINGS WITH EACH OTHER AND ALSO REMEMBER OTHERS HAVING QUESTIONS ABOUT THE RACK WHEN THEY WERE ASSIGNED THIS PROJECT. THE PROJECT HAS YOU PULL OUT THE FQIS WIRES AND RTE THEM SEPARATELY FROM THE OTHER WIRES. THE REMAINING WIRES ARE ALSO TO BE ROUTED TO AVOID INTERFERENCE. IT IS IN ROUTING THE REMAINING WIRES MOSTLY THAT I BELIEVE I MAY HAVE BEEN IN ERROR, BECAUSE WHEN THE CO-WORKER DID THIS RACK HE HAD TO TAKE CONNECTORS OUT OF THE RACK ON THE COMPUTER SIDE AND THEN REINSTALL AFTER REROUTING. I DON'T RECALL DOING THIS AND THIS WOULD MAKE THE ROUTING DIFFERENT, AND MAKE A DIFFERENCE IN UNDERSTANDING THE PROJECT. I REMEMBER THE PROJECT ALTHOUGH FAIRLY ROUTINE, WAS A LITTLE HARDER TO UNDERSTAND THAN NORMAL. I THINK THE DRAWINGS COULD HAVE BEEN MORE CLR AND ALSO SHOULD BE MORE CLARIFICATION ON THE WRITTEN INSTRUCTIONS, PERHAPS WITH MORE NOTES DIRECTLY ON THE DRAWINGS. IN HINDSIGHT, I SHOULD HAVE SOUGHT MORE HELP, ASKED THE ENGINEER OR STUDIED IT MORE, BUT I THOUGHT AT THE TIME I HAD FIGURED IT OUT.

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.