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A319 mechanic reported that an idle engine check was insufficient to check for oil leaks.
| Attributes | |
| ACN | 1595155 |
| Time | |
| Date | 201811 |
| Place | |
| Locale Reference | ZZZ.Airport |
| State Reference | US |
| Aircraft 1 | |
| Make Model Name | A319 |
| Flight Phase | Parked |
| Component | |
| Aircraft Component | Oil Line |
| Person 1 | |
| Function | Technician |
| Events | |
| Anomaly | Aircraft Equipment Problem Less Severe Deviation - Procedural Published Material / Policy |
Narrative:
Performed number 2 engine hmu (hydro mechanical unit) installation and installation of number 2 engine oil/fuel heat exchanger. Followed steps and procedures in manuals during job task. Went thru and retraced our steps after completion of job; visualizing each step we had done. Found no problems with the installation of either part. After completion of work task; performed idle leak check for 5 minutes. No leaks were found at this time. Performed actuators test where no faults were found.suggested resolution: after installation of this kind of job; replace the idle run leak check with a takeoff power type leak check so this may be caught before plane is release. High power engine run would provide a different dynamic as opposed to the idle run leak check.
Original NASA ASRS Text
Title: A319 Mechanic reported that an idle engine check was insufficient to check for oil leaks.
Narrative: Performed Number 2 engine HMU (Hydro Mechanical Unit) installation and installation of Number 2 engine oil/fuel heat exchanger. Followed steps and procedures in manuals during job task. Went thru and retraced our steps after completion of job; visualizing each step we had done. Found no problems with the installation of either part. After completion of work task; performed idle leak check for 5 minutes. No leaks were found at this time. Performed actuators test where no faults were found.Suggested Resolution: After installation of this kind of job; replace the idle run leak check with a takeoff power type leak check so this may be caught before plane is release. High power engine run would provide a different dynamic as opposed to the idle run leak check.
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.