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07 May 2025, 07:01 [ UTC - 5; DST ]


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 Post subject: Looking for intel on the Allison / Rolls-Royce M250
PostPosted: 23 Sep 2023, 07:39 
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Joined: 12/18/12
Posts: 804
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Aircraft: Aerostar 600A
Thought I put this out to the BT Braintrust : I'm looking at a Cessna 206 Soloy Conversion which means the Conti was swapped out in favour of a 420Hp Allison M250-C20S. It suffered a props strike.

I'm looking for advice on best course of action for dealing with the shock load inspection.

Precious little info out there concerning these small turbines, unlike pistons ...

Thanks!

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 Post subject: Re: Looking for intel on the Allison / Rolls-Royce M250
PostPosted: 23 Sep 2023, 09:24 
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Joined: 05/05/09
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Aircraft: C501, R66
https://fast.aeromanager-online.com/RRFAST2

Super easy, make an account tell them what serial number you own and they will give you access to the maintenance manuals for free.

Yes, there is no public information available out there that I could find.

Mike


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 Post subject: Re: Looking for intel on the Allison / Rolls-Royce M250
PostPosted: 23 Sep 2023, 10:27 
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Joined: 08/24/13
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Company: Aviation Tools / CCX
Location: KSMQ New Jersey
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Username Protected wrote:
Super easy, make an account tell them what serial number you own and they will give you access to the maintenance manuals for free.


That's pretty awesome. I wish P&W would do this...


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 Post subject: Re: Looking for intel on the Allison / Rolls-Royce M250
PostPosted: 23 Sep 2023, 10:57 
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Thanks for that !

Whilst that helps, I was looking for costings more than anything else.

Username Protected wrote:
https://fast.aeromanager-online.com/RRFAST2
Super easy, make an account tell them what serial number you own and they will give you access to the maintenance manuals for free.
Yes, there is no public information available out there that I could find.
Mike

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 Post subject: Re: Looking for intel on the Allison / Rolls-Royce M250
PostPosted: 23 Sep 2023, 19:12 
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Joined: 01/22/19
Posts: 1082
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Location: KPMP
Aircraft: PA23-250
https://www.asimro.com/support

and

standardaero.com

these two do a lot of M250 engine work. You'll probably have to ship the whole engine, not just the gearbox because it's going on a single engine aircraft.

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 Post subject: Re: Looking for intel on the Allison / Rolls-Royce M250
PostPosted: 24 Sep 2023, 01:21 
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Joined: 12/03/14
Posts: 19949
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Company: Ciholas, Inc
Location: KEHR
Aircraft: C560V
Username Protected wrote:
I wish P&W would do this...

Me too.

The denial of access to maintenance documents is a safety risk.

I pray for the day right to repair movement that includes aviation comes to be.

Until then, I, as well as many others, find documents underground and smuggle them around as best we can. Sigh.

Mike C.

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 Post subject: Re: Looking for intel on the Allison / Rolls-Royce M250
PostPosted: 24 Sep 2023, 12:10 
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Joined: 01/22/19
Posts: 1082
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Location: KPMP
Aircraft: PA23-250
https://www.eflightmanuals.com/ITEM_EFM/SLIST_EFM.asp

If you want a general idea of the engine and maintenance practices, the T63 is the military designation for the Allison 250/RR M250 engine

It'll only set you back $30.

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Cirrus aircraft expert


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