SandBank, finally we see someone who knows what they are talking about.
An aircraft that has to abort a take-off due to an engine fault is a serious issue.
Maintenance then carried out to correct this would then require a test flight, not a revenue flight.
For a pilot or engineer to release/accept the aircraft under such circumstances without carrying out a test flight dependent upon what the circumstance was would be classed as negligence.
May i remind you all that accepting commercial pressure is classed as negligence. The engineer releasing the aircraft makes the call as to whether the aircraft will require a test flight or not, the company has no right to over rule this decision.
Think about that people.