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B777 engine static ports

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B777 engine static ports

Old 1st Jul 2019, 13:21
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B777 engine static ports

Hi guys
Can anyone explain what the static ports either side of the engine cowling are used for
thanks
aslan1982 is offline  
Old 1st Jul 2019, 19:11
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Originally Posted by aslan1982 View Post
Hi guys
Can anyone explain what the static ports either side of the engine cowling are used for
thanks
Ambient pressure indications to the FADEC. Pamb from the engine is compared to Pamb from the aircraft - if they agree within a tolerance the FADEC will use the aircraft (so that when everything is working normally, all the systems are using the same Pamb). However is the engine Pamb indication is significantly different relative to the aircraft values, the FADEC will use the engine sensed value to protect engine to engine isolation.
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Old 1st Jul 2019, 19:35
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Originally Posted by tdracer View Post
Ambient pressure indications to the FADEC. Pamb from the engine is compared to Pamb from the aircraft - if they agree within a tolerance the FADEC will use the aircraft (so that when everything is working normally, all the systems are using the same Pamb). However is the engine Pamb indication is significantly different relative to the aircraft values, the FADEC will use the engine sensed value to protect engine to engine isolation.
thank you very much
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Old 2nd Jul 2019, 07:45
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Likewise, thanks for the details...
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