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Landing gear/engine mount cracks 1470 hrs RV-6

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ronvan(at)q.com
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Posted: Mon Apr 12, 2010 8:29 pm Post subject: Landing gear/engine mount cracks 1470 hrs RV-6

1. Thanks to Charles Kuss for the info on how to remove the adhesive 

under flap wear strip.

2. Cracks in engine mount at loweroutboard firewall mount bosses:  RV6 

with 1470 hrs TT

		Called Van's; they said it has been happening on some aircraft and to 

get it welded in place within the next 50 hrs.  They suggested adding a 

gusset plate that has been added to all RV7s.  We pulled engine/gear 

assembly forward and clear of firewall and welded the cracks then added 

the gusset plate on both sides.  This aircraft has been used for allot 

of training and has seen some hard landings.........although only found 

the cracks during this February annual condition inspection even though 

a couple of the hard landings had me looking closely about  400 hrs 

ago.  The cracks were in the weld bead itself on the underside of the 

mount bolt boss.

Landings will be monitored a bit more closely from here on out.   Heh, 

heh!

Ron Vandervort

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