Engines

Question 0

What cond will throw a Eng 1 or 2 anti ice inlet valve fail?

Answer 0

Ng > 91% anti ice-OFF, and temp sensor is hot

OR

Ng >91% anti ice-ON, and temps sensor not hot

Question 1

How long after selecting inlet anti ice off does the SP turn the temp switch back on.

Answer 1

It is not instantly, it depends on the engine nacelle temps. Initially, after the anti ice valve opens, the temp switch will close at 155. The temp switch will not open until it is cooled below 150

Question 2

What cond would throw a Eng 1 or 2 start bleed valve (GE valve) fail?

Answer 2

Ng >91% anti ice-OFF and the start bleed valve indicates open

OR

Ng >91% anti ice-ON and the start bleed valve indicates closed

Question 3

What conditions throw ENG 1 OUT?

Answer 3

Ng <63 and power lever not in the Off position

Question 4

What are the functions of the DECU?

Answer 4

Np overspeed
Np reference 
Np governing
Cockpit signals of Np, Torq, & T4.5
Collective and Nr load anticipation
400 hz pwr capabilities
Fault validation
TGT limiting
Torq limiting
Hot start prevention
Contingency power

Question 5

What would be an indication of Torq stiction?

Answer 5

During HIT chks the engine at idle should be at 0-5%