Narrative:

Mis-routed/poorly routed wires along with non-compliance securing of these wires that are critical to fuel systems proper function; were found during a c-check preliminary inspection of a B777-200 aircraft. Two [maintenance] non-routine write-ups were generated in order to re-route; replace; re-secure various wires related to the fuel systems found in and around two electrical panels: P110 and P210. The particular wires that were found to be in non-compliance are the same wires that were previously worked on during the process of accomplishing two airworthiness directives (a/D) notes that were not done here at our base maintenance facility. The wires in question were routed outside the [electrical] bundles along with crossing over to adjacent bundles and found to be in non-compliance with the correct specifications as outlined in the a/D bulletin. The ad notes are: service bulletin 5000ELM-28-454 and south/B 5000ELM-28-455. Contracted maintenance. [Recommend] closer monitoring and follow-up of ad's; which are flight critical systems; that may have been performed outside of our air carrier maintenance facilities.

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Original NASA ASRS Text

Title: An Aircraft Maintenance Technician (AMT) reports finding critical fuel system electrical wires in and around the P110-P210 Left and Right Power Management Panels that were misrouted; poorly routed; crossing over to adjacent electrical bundles and not in compliance with two Airworthiness Directives (A/Ds) and Service Bulletins (S/Bs) for B777-200 aircraft.

Narrative: Mis-routed/poorly routed wires along with non-compliance securing of these wires that are critical to fuel systems proper function; were found during a C-Check Preliminary Inspection of a B777-200 aircraft. Two [Maintenance] Non-Routine write-ups were generated in order to re-route; replace; re-secure various wires related to the fuel systems found in and around two electrical Panels: P110 and P210. The particular wires that were found to be in non-compliance are the same wires that were previously worked on during the process of accomplishing two Airworthiness Directives (A/D) notes that were not done here at our Base Maintenance facility. The wires in question were routed outside the [electrical] bundles along with crossing over to adjacent bundles and found to be in non-compliance with the correct specifications as outlined in the A/D Bulletin. The AD notes are: Service Bulletin 5000ELM-28-454 and S/B 5000ELM-28-455. Contracted Maintenance. [Recommend] closer monitoring and follow-up of AD's; which are Flight critical systems; that may have been performed outside of our Air Carrier Maintenance Facilities.

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.