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Old 22nd Jan 2017, 06:27
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downwind
 
Join Date: Aug 1998
Location: australia
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737NG engine questions

Dear all,

I would like to clear up some questions I have regarding these topics;

1. Reverser unlocked in flight

As per the video below;

https://www.youtube.com/watch?v=MEGX6h49ICY

The affected reverser system forward thrust lever goes straight to close (idle) with inadvertent actuation of reverse thrust (caused by a defect). This is the working on the B737-300/500 series.

What happens on the 737NG, same result?

I am curious since the B737NG has EEC?

For your reference I have looked at FCOM and QRH

2. Hard alternate EEC mode

"If the EECs are in the alternate mode, advancing the
thrust levers full forward provides some overboost and should be considered only during emergency situations when all other available actions have been taken and terrain contact is imminent."

"Hard alternate mode thrust is always equal to or greater than
normal mode thrust for the same lever position"

Is this hard alternate thrust significantly greater than EEC normal mode full foward stop?

Thank you
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