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Would you stake your life, right now, on the condition of your equipment?
NEWS | Jan. 20, 2023

AH-64/H-60: Managing Compressor Issues and Engine Noise

BLUF: The Utility Helicopter Project Office offers guidance on ways to manage compressor issues and engine noise.

Soldiers Working on Black Hawk
Photo by Sgt. Sarah Sangster
Air flow disruption and damaged or bent compressor blades are common when aircraft operate at the lowest of altitudes. Effectively dealing with both compressor issues and engine noise includes engine washes for performance recovery, borescope of the compressor and possibly blending or even clipping the blades.
PM Utility Helicopter offers some guidance on the task of blending the blisks (compressor blades) HERE. You'll need your CAC to access.

It refers to the engine manual, TM 1-2840-248-23&P (EM 0271, Oct 19), which can be searched on the ETM website HERE.
If you have questions on this guidance, contact Michael Weist at:
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