PPRuNe Forums - View Single Post - B777 engine static ports
View Single Post
Old 1st Jul 2019, 18:11
  #2 (permalink)  
tdracer
 
Join Date: Jul 2013
Location: Everett, WA
Age: 68
Posts: 4,427
Received 180 Likes on 88 Posts
Originally Posted by aslan1982
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.
tdracer is offline