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An ETOPS qualified maintenance technician signed off work and released a boeing 767 for service not realizing that it required an inspection sign off also.
| Attributes | |
| ACN | 1462481 |
| Time | |
| Date | 201707 |
| Local Time Of Day | 1801-2400 |
| Place | |
| Locale Reference | ZZZ.Airport |
| State Reference | US |
| Aircraft 1 | |
| Make Model Name | B767-300 and 300 ER |
| Operating Under FAR Part | Part 121 |
| Flight Phase | Parked |
| Component | |
| Aircraft Component | Powerplant Fuel Control |
| Person 1 | |
| Function | Technician |
| Qualification | Maintenance Airframe Maintenance Powerplant |
| Experience | Maintenance Technician 20 |
| Events | |
| Anomaly | Aircraft Equipment Problem Critical Deviation - Procedural Published Material / Policy |
Narrative:
Aircraft X experienced and rollback and unresponsive throttle immediately after takeoff. It was found that the rib of the thrust reverser cowl had rubbed through the cdp line going to the fuel control. This lead to an engineering order to set up all of the same series motors on the 767 fleet to be inspected for the same problem. I was sent with another technician to ZZZ to inspect aircraft X. On inspection of both engines we determined that both lines had slight wear and out of caution both should be replaced. We addressed the clearance issue and replaced both lines. The engineering revision authorization (era) stated that ETOPS would not be affected. So we signed off the work and released the aircraft. The aircraft made two flights before this was found and had a re-inspection in ZZZ1 to verify that the repair was good. Looking back being that both technicians were ETOPS qualified we should have made a call to [maintenance] to verify what we were reading to be correct.
Original NASA ASRS Text
Title: An ETOPS qualified Maintenance Technician signed off work and released a Boeing 767 for service not realizing that it required an inspection sign off also.
Narrative: Aircraft X experienced and rollback and unresponsive throttle immediately after takeoff. It was found that the rib of the thrust reverser cowl had rubbed through the CDP line going to the fuel control. This lead to an engineering order to set up all of the same series motors on the 767 fleet to be inspected for the same problem. I was sent with another technician to ZZZ to inspect Aircraft X. On inspection of both engines we determined that both lines had slight wear and out of caution both should be replaced. We addressed the clearance issue and replaced both lines. The Engineering Revision Authorization (ERA) stated that ETOPS would not be affected. So we signed off the work and released the aircraft. The aircraft made two flights before this was found and had a re-inspection in ZZZ1 to verify that the repair was good. Looking back being that both technicians were ETOPS qualified we should have made a call to [Maintenance] to verify what we were reading to be correct.
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.