On Tue, Apr 3, 2012 at 10:21 AM, Charles Brown <browncc1@verizon.net> wrote:

Short story:  My 2006 Legacy kit with 2008 overcenter links has the flawed parts and needs fixing.

Sorry gang, I couldn't find the recent thread to link this to, but it's about the overcenter links and service bulletin 074-0111 covering overcenter links and main gear retract actuators.  This is from my Legacy, relevant data:
-- Kit #299, original parts issue Nov 2006
-- Overcenter links updated Aug 2008 because of cracks from the manufacturing process found in original issue links (pic 1).
-- First flight Sept 2011, now has 110 hours and approx 200 cycles on the gear.  Nothing rough, I always make perfect landings...  er...  mostly.
-- Left overcenter link severely cracked on one tab, not the other (pics 2, 3).  Material thickness is about 0.10 inches rather than 0.16 specified in the service bulletin.
-- Actuators were issued *without* the spherical bearing.
-- I haven't pulled the right link, will do that tomorrow.
Lancair offers refurb and powder coat of each link for $100, and new actuator parts with spherical bearings for $70 each, for a total of $340 plus shipping for a full shipset; and they claim that with powder coating, the turnaround time is 2 weeks; without powder coating, 2 days.

Note that retraction was unaffected with this level of cracking (I did a gear swing before taking everything apart).  Prob because one tab was as yet undamaged.

Ross at Lancair Tech Support claims that the normal way to find out about a servcie bulletin is just to log in and check periodically; he doesn't know why some owners got a notice and others (me) did not.

Charley Brown


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