Date: Fri, 19 May 2000 06:55:24 -0700
From: erosiak@postoffice.pacbell.net
Subject: More Crankshaft Info
To: "lancair.list@olsusa.com" <lancair.list@olsusa.com>
Reply-to: erosiak@pacbell.net
Message-id: <392547CC.60E02311@postoffice.pacbell.net>
Mime-Version: 1.0

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Here is some more info on the expanded Continental crank woes as well as
Lycoming entering the picture.  This is cut and pasted from the AVWEB
electronic newsletter.  Somewhat alarmed I called Continental on my 550
because I had already checked it. I used the Continental URL and input
my serial number and it came up with "already checked".  Sooo, I called
and they said my engine was not affected.  Just a heads up.

Ed Rosiak ES in progress

TCM CRANKSHAFT WOES EXPAND...
Teledyne Continental Motors (TCM) has identified an additional lot of
crankshafts that will have to be inspected under a Mandatory Service
Bulletin issued last month.  TCM will issue Revision B of MSB 00-5A very

shortly, adding about 300 crankshafts to the list of 1,100 that already
require a metallurgical inspection by core sample.  TCM engineering
chief John Barton told AVweb that the failure rate for crankshafts
tested so far under MSB 00-5A has been approximately 20 percent, sharply

higher than the 5-percent flunk rate that the company anticipated when
the MSB was first issued.

   NOTE: AVweb's NewsWire <http://www.avweb.com/newswire/news0020b.html>

   includes links to the complete text of Emergency AD 2000-08-51 and
   the TCM Web site.

...WHILE TEXTRON LYCOMING OWNERS GET CRANKED UP, TOO
Just when you thought it was safe to trade that airplane with the TCM
engine -- and its crankshaft problem -- in on something with a Lycoming
label on it, comes word that the other major GA engine manufacturer is
having its own share of problems.  Seems that an unspecified
"metallurgical problem with a small number of crankshafts" was
discovered by Lycoming earlier this month, prompting the company to
issue Special Advisory No. 55-500.  All of which raises the question of
whether TCM and Lycoming got bad batches of steel from the same
supplier.  At deadline, AVweb was unable to confirm this scenario.

   NOTE: AVweb's NewsWire <http://www.avweb.com/newswire/news0020b.html>

   includes the complete text of Textron Lycoming's Special Advisory No.

   55-500 and a related letter to its distributors.

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