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ME slow down - FIVA valve alarms

While under pilotage Main Engine slowdown occurred after following alarms :

  • SUPERV. CH30 , 4102, ELFI/FIVA POSITION
  • EXH VALVE OPEN
  • ILLEGAL ELFI/FIVA POSITION STROKE LOW
  • ELFI FIVA FEEDBACK SENSOR FAILURE

What is most likely causes slowdown?

30 Mar '20, 00:19

March 30, 2020, 12:19 a.m.
KnowledgeBase's gravatar image


Answer:

Most likely FIVA valve has failed.

To confirm, replace it with new or swap from other unit in case there is no spare valve in stock.

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30 Mar '20, 00:25

March 30, 2020, 12:25 a.m.
cheng's gravatar image


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