X-Virus-Scanned: clean according to Sophos on Logan.com Return-Path: Sender: To: lml@lancaironline.net Date: Thu, 12 Aug 2010 14:28:09 -0400 Message-ID: X-Original-Return-Path: Received: from smtp103.sbc.mail.gq1.yahoo.com ([67.195.15.62] verified) by logan.com (CommuniGate Pro SMTP 5.3.8) with SMTP id 4428255 for lml@lancaironline.net; Thu, 12 Aug 2010 11:46:29 -0400 Received-SPF: none receiver=logan.com; client-ip=67.195.15.62; envelope-from=pbricker@att.net Received: (qmail 3261 invoked from network); 12 Aug 2010 15:45:55 -0000 Received: from [192.168.1.69] (pbricker@76.206.248.200 with plain) by smtp103.sbc.mail.gq1.yahoo.com with SMTP; 12 Aug 2010 08:45:54 -0700 PDT X-Yahoo-SMTP: E_DOnNaswBA_C3UUkqdGieqw9axmS6GTFECYQXU- X-YMail-OSG: vlo_UmAVM1nRtSuh4RxNLIF9uzJtJcVHFb8w48y2eoUgcek NnD5NPsDwiNJrmo59ULasPt4xMWa48sJcKPonQW_mLuUwcLpBijZtbPhCrhI gF9WQ.63l82fSW67JqRkUuRguMOPGJ3ZMkgyaOdOMuCTEojPAsHu0cBh9v38 8dUs.OihdDVAChoqxaML_02dOaAbO03uZ4BbR8EgQpRPcVNKQ_Wy9k466zbM iTeAX5.1.M8ZiYIO7IxLBLkf6QvtRgesDxUIyVjpILXL_42aN1iYifao.KJZ BrRfE8R7arl30 X-Yahoo-Newman-Property: ymail-3 From: Paul Bricker Mime-Version: 1.0 (Apple Message framework v1081) Content-Type: multipart/alternative; boundary=Apple-Mail-1-525559154 Subject: Re: [LML] Broken rocker arm - Continental IO-550 X-Original-Date: Thu, 12 Aug 2010 08:45:53 -0700 In-Reply-To: X-Original-To: "Lancair Mailing List" References: X-Original-Message-Id: <06075BDD-0181-4A81-A83E-485D99F4629E@att.net> X-Mailer: Apple Mail (2.1081) --Apple-Mail-1-525559154 Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset=us-ascii Fred, Great log and pictures but a horrible story. At least no one was hurt. = Keep us informed on the repairs. Hope YFM is flying again soon. Paul Bricker On Aug 11, 2010, at 4:23 PM, marv@lancair.net wrote: > Posted for "Frederick Moreno" : >=20 > There we were, over the crocodile infested swamps of the Kakadu = National > Park when the exhaust rocker arm of cylinder no. 1 broke taking that > cylinder off line. Operating with intake valve only, cylinder 1 = burped all > its fuel into cylinder 6 (next in line) which promptly flooded and = shut > down. What fun. And of course I had no hint as to the cause of the > transition from smooth to very rough. Fussing with mixture, RPM, and > manifold pressure brought cylinder number 6 back on line and = smoothed > things out a bit, but going full rich when I ran the standard final > checklist on final flooded the entire engine which crapped out just = when I > needed a bit more power for the flare. So it was bonk on the nose = wheel and > a chin slide. =20 > =20 > =20 > =20 > Then the fun began. I did the aircraft recovery with a friend (only = 3000 > miles via road from home) and found it was great fun to work in the = sun in > the tropics. The insurance company wanted a log of activities to = support my > claim for recovery costs. I prepared the attached document and a = spread > sheet of costs. They paid in full.=20 > =20 > =20 > =20 > Rocker arm failure appears to be a manufacturing fault. I am = negotiating > with CASA and Continental to see who does what investigation with the = broken > pieces and then publishes the results. More to follow.=20 > =20 > =20 > =20 > Captain Tuna, Chicken of the Skies > =20 >

-- > For archives and unsub = http://mail.lancaironline.net:81/lists/lml/List.html --Apple-Mail-1-525559154 Content-Transfer-Encoding: 7bit Content-Type: text/html; charset=us-ascii Fred,

Great log and pictures but a horrible story. At least no one was hurt. Keep us informed on the repairs. Hope YFM is flying again soon.

Paul Bricker

On Aug 11, 2010, at 4:23 PM, marv@lancair.net wrote:

Posted for "Frederick Moreno" <frederickmoreno@bigpond.com>:

There we were, over the crocodile infested swamps of the Kakadu National
Park when the exhaust rocker arm of cylinder no. 1 broke taking that
cylinder off line.  Operating with intake valve only, cylinder 1 burped all
its fuel into cylinder 6 (next in line) which promptly flooded and shut
down.   What fun.  And of course I had no hint as to the cause of the
transition from smooth to very rough.  Fussing with mixture, RPM, and
manifold pressure brought cylinder number 6  back on line and smoothed
things out a bit, but going full rich when I ran the standard final
checklist on final flooded the entire engine which crapped out just when I
needed a bit more power for the flare.  So it was bonk on the nose wheel and
a chin slide.

Then the fun began.  I did the aircraft recovery with a friend (only 3000
miles via road from home) and found it was great fun to work in the sun in
the tropics.  The insurance company wanted a log of activities to support my
claim for recovery costs.  I prepared the attached document and a spread
sheet of costs.  They paid in full.

Rocker arm failure appears to be a manufacturing fault.  I am negotiating
with CASA and Continental to see who does what investigation with the broken
pieces and then publishes the results.  More to follow.

Captain Tuna, Chicken of the Skies

<fm_Rocker-arm-1.jpg><fm_Rocker-arm-3A.jpg><YFM Jabiru recovery activity log.pdf>--
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