B737-700
Maintenance Airframe; Maintenance Powerplant
Troubleshooting; Communication Breakdown; Situational Awareness
Aircraft Equipment Problem Less Severe; Deviation / Discrepancy - Procedural Published Material / Policy; Deviation / Discrepancy - Procedural Maintenance; Deviation / Discrepancy - Procedural FAR
General Maintenance Action
Procedure; Incorrect / Not Installed / Unavailable Part; Aircraft; Human Factors
We work fuel nozzles on #1 engine through multiple shifts and as the new ones were laid out on table I accidentally grabbed the wrong one.  We had a fellow employee filling out the tag so it could have been caught there but again was missed.  I then was put on fuel nozzles again the following Wednesday and I realized I forgot about enrichment nozzles last aircraft.  Did some research and realized I had messed up.  Called maintenance control and talked to a lead and aircraft is being pulled from service to be checked and repaired.
I was called to be informed that some fuel nozzles had been installed in the wrong positions. My involvement was torque and safety verification per task card.
Technicians reported that engine fuel nozzles of a B737-800 were installed in the wrong position and this was discovered post maintenance.