Compressor Stalls

Question 1

How may compressor stalls be initially identified?

Answer 1

Abnormal engine noise, increasing ITT, and decreasing N1 and torque.

Question 2

What is a major noticeable difference between a compressor stall and an uncommanded power change..?

Answer 2

Audible indications such as loud bangs, backfires, or engine sputtering

Question 3

What may result with a severe compressor stall?

Answer 3

Engine damage and/or engine flameout

Question 4

What does turning the DEFOG switch to ON do during a compressor stall?

Answer 4

It selects high bleed air inflow and will alleviate back pressure on the engine compressor