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/ʌnˈpoɹt/ · verb
(mechanical engineering, of a liquid such as fuel or oil, intransitive) To flow away from, and, thus, fail to enter, its intake or drain port..
Further, the apparent difficulties with the left engine could be explained by unporting of whatever fuel remained in the left tank. Conditions would have been conducive to unporting if, for example, the airplane was in a left bank and in a nose-right sideslip following the loss of the right engine, which is consistent with flying straight while attempting to turn to the left, as indicated by the pilot statement "we're trying" when the controller queried if the airplane was in a left turn. Assuming some usable fuel was in the left tank, it is probable that the flight crew's maneuvering after the right engine stoppage may have intermittently unported it, causing the sequential stoppage and restarting of the left engine. The Safety Board notes that the loss of the right engine occurred while the airplane was in relatively level flight and that the left engine stoppage occurred during attempts to maneuver back to the ILS course after the stoppage of the right engine. Further, the final loss of control may have been precipitated by momentary stopping or starting of the left engine when the airplane was at a reduced airspeed. Impact witness marks and airplane damage were consistent with a loss of control at low altitude.
Use unport when its meaning, tone and grammar fit the full sentence. A synonym is not always a direct replacement.
Unport means (mechanical engineering, of a liquid such as fuel or oil, intransitive) To flow away from, and, thus, fail to enter, its intake or drain port..
The closest synonym depends on the sentence and intended sense.
The opposite depends on the specific sense.
Further, the apparent difficulties with the left engine could be explained by unporting of whatever fuel remained in the left tank. Conditions would have been conducive to unporting if, for example, the airplane was in a left bank and in a nose-right sideslip following the loss of the right engine, which is consistent with flying straight while attempting to turn to the left, as indicated by the pilot statement "we're trying" when the controller queried if the airplane was in a left turn. Assuming some usable fuel was in the left tank, it is probable that the flight crew's maneuvering after the right engine stoppage may have intermittently unported it, causing the sequential stoppage and restarting of the left engine. The Safety Board notes that the loss of the right engine occurred while the airplane was in relatively level flight and that the left engine stoppage occurred during attempts to maneuver back to the ILS course after the stoppage of the right engine. Further, the final loss of control may have been precipitated by momentary stopping or starting of the left engine when the airplane was at a reduced airspeed. Impact witness marks and airplane damage were consistent with a loss of control at low altitude.
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