Выражение встречается в следующем контексте:
в договоре лизинга
Utilisation Date means the latest to occur of (a) the date falling twelve (12) years after the Utilisation Date of the First llyushin Aircraft Advance in respect of the llyushin Aircraft and (b) the date falling twelve (12) years after the Utilisation Date of the First Tupolev Aircraft Advance in respect of the Tupolev Aircraft

Заранее спасибо