B737 Undifferentiated or Other Model
Confusion; Training / Qualification
Deviation / Discrepancy - Procedural Published Material / Policy
General None Reported / Taken
Human Factors
During USB (Upper Side Band) Mods; there is a chance I could have routed USB wires onto or near FQIS (Fuel Quantity and Indication System) bundle on the right side run to First Officer in the E&E (Electronic and Equipment) to the Forward wheel well. I was not aware of the FQIS wire bundle location and could have routed wires with the improper clearance and or sleeving. I realized I could have made the error when I read the current USB Mod task card which stated look for FQIS bundle and make sure the proper clearance is used when running the right side.
B737 Maintenance Technician reported they may have incorrectly routed wires for aircraft Mod.