CS Prop Overhaul Requirements

[Monica Wyer]

Hello all,

Viewed an RV7 today that's for sale. It has a Hartzell CS prop that is 6 years old. I thought that CS props had to be overhauled at 6 years, is this still mandatory on a permit aircraft? The seller says it only requires a corrosion inspection. Any advice very much appreciated.

Mona

[Rod1]

What does your inspector say? It is up to you and him to agree an appropriate schedule with due regard to manufacturers recommendations.

Rod1

[Monica Wyer]

Hi ROD,

So the 6 year inspection is not mandatory? Does that just apply to C of A aircraft?

Kind regards,

Mona

[Rod1]

“So the 6 year inspection is not mandatory? Does that just apply to C of A aircraft?”

No idea, I do not run a C of A aircraft. Do not celebrate yet; your inspector may want 3 years…

Rod1

[mike newall]

A CS prop can either be maintained under Notice 75, or under the manufacturers schedule.

Choose one and continue.

In your case, if it has not had a Notice 75 at 3 years, it will be subject to the manufacturers schedule. If that is 6 years, then - yep, it needs an overhaul.

Check with CFS at Coventry - they are very good.

[Monica Wyer]

Thanks Mike, I had a feeling an overhaul was on the cards. Kind regards, Mona

[Will Greenwood]

Hi Yes an overhaul is due at 6yrs, the same rules apply to a permit aircraft with a CSU prop (hartzel) I have mine done at MCA Shoreham airport.

Will.