The return flight of the aircraft was delayed.

飞机的返回航程被推迟了。

《柯林斯英汉双解大词典》

A large Mariner flying boat sent to search for the missing aircraft also failed to return.

派出去搜寻失踪飞机的大型“水手号”飞艇也没有回来。

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The point in the flight of an aircraft beyond which there is insufficient fuel for return to the starting point.

不可返回点；无还点：一架飞机飞行中，飞机没有足够的油料返回出发点的那一点。

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Flight 186's auxiliary power unit failed during the wait and the aircraft had to return to a gate.

WSJ: Flight Nightmares Overshadow Airlines�� Improving Record

We are replacing the generator and running additional checks so as to return the aircraft to service.

FORBES: Can Boeing Contain the Dreamliner's Technical Glitches?

"These flights will be an important part of our efforts to ensure the safety of passengers and return these aircraft to service, " the agency said.

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