Today's Message Index:
----------------------
1. 12:54 AM - Re: Engines-List Digest: 3 Msgs - 07/16/03 (Miles McCallum)
Message 1
| NEXT | Skip to NEXT Message |
| LIST | Reply to LIST Regarding this Message |
| SENDER | Reply to SENDER Regarding this Message |
|
| Subject: | Re: Engines-List Digest: 3 Msgs - 07/16/03 |
--> Engines-List message posted by: "Miles McCallum" <milesm@avnet.co.uk>
Actually, there were a couple of failures (crank breaking in flight, loss of
prop, successful forced landing) but in both cases - and those cranks found
to have cracks in the affected region during isnpection - there was evidence
that the problem was caused by previous propstrike incidents, and nothing to
do with pitting. Given the number of cranks that were scrapped over here, if
it was a problem, you would have expected to have seen far more serious
incidents/failures that actually occured. The only time I'd be concerned
would be if the engine was fitted to an aerobatic aeroplane - and that's one
thing the Glastar ain't!
Miles
>
> Here's one for you experts out there...
>
> My Lycoming O-320-D3G crankshaft failed compliance with S.B. 505, but not
> until $600 of other work had been accomplished. My question is: Since the
> application will be in an experimental aircraft (a Glastar), is this crank
> viable?
>
> I ask this because, the shop rep stated the crankshaft could be yellow
> tagged for a 150 hp application, but not for the 160 hp that is the
engine's
> current configuration. Also, (off the record) he stated that he would have
> no qualms running this crank indefinitely and that his shop had routinely
> passed cranks in this condition (prior to the A.D. coming out in 1997).
> BTW, this is a huge shop with an excellent reputation.
>
> The crank is serviceable in every other way except failing the S.B. 505
> criteria. Is the 10 hp difference justification for buying a new crank? Am
> I nuts for considering its continuing service? What is the history of S.B.
> 505, i.e. what prompted its implementation?
>
> Wanting to be safe-
> Scott in Colorado
>
>
>
> Time: 03:00:57 PM PST US
> From: "Archie" <archie97@earthlink.net>
> Subject: Re: Engines-List: Mandatory Service Bulletin 505...
>
> --> Engines-List message posted by: "Archie" <archie97@earthlink.net>
>
> As I understand it, there was only one failure.
> (in England) of an aircraft that sat for long periods of time.
> This is the only filed report that I am aware of.
> Is/Are there more?
> Archie
>
>
Other Matronics Email List Services
These Email List Services are sponsored solely by Matronics and through the generous Contributions of its members.
-- Please support this service by making your Contribution today! --
|