A319
Training / Qualification
Aircraft Equipment Problem Less Severe; Deviation / Discrepancy - Procedural Published Material / Policy
General Maintenance Action
Company Policy; Manuals; Procedure
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.
A319 Mechanic reported that an idle engine check was insufficient to check for oil leaks.