Выражение встречается в следующем контексте:

Performance compliance will be demonstrated at the time of the acceptance flight test and/or, at the Lessor's option, by on-wing static inspection and testing of the power plants (engines, nacelles and accessories) and may include but not be limited to a full power assurance engine run-up, vibration survey performed in accordance with the approved maintenance manual.
Заранее спасибо