Compressor washes

[flyawaboy]

What’s the recommendations on compressor washes and how are they done on a TPE 331-1-151 engine. Bill Archer

[Adam Frisch]

I don't think they're done at all.

[Bruce Byerly]

Pratts are weak 

[donv]

I've never heard of a compressor wash in relation to a 331. That is purely a PT6 thing.

[flyawaboy]

Thanks everyone for your input.  Didn't think so but thought I had better ask.  Bill

[Bruce Byerly]

I've never heard of a compressor wash in relation to a 331. That is purely a PT6 thing.

Not just PT6’s, you can find plenty of Pratt (and other brand) powered late model jets with $500-1MM bills for corrosion issues. Makes a 331 look like a miracle of modern engineering and reliability. It’s amazing.