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Service Bulletin 16-03-28

May 21st, 2016
Right Wing Doublers

Right Wing Doublers

As one can clearly see, it has been some time since the last log entry again. However, it turns out that the “slow build” has proven OK at times. Van’s Aircraft recently released another Service Bulletin. The last one they issued is required on a completed assembly (horizontal stabilizer) and I still need to accomplish it. This new one is on the wings, which in my case, are still very much open. I decided that for the $10.00 in parts, I’d get them in the shop and see what can be done to incorporate the fix into my “in progress” wings now.

Left Wing Doublers

Left Wing Doublers

Van’s did mention in the SB that accomplishing as a “preventative measure” is not recommended on “wings that have been fully assembled” but as we know, mine are far from the “fully assembled” stage┬áthis point. That said, once getting the parts separated and deburred and cleco’d in place, it’s clear that a good re-write of the order of assembly is required, even for the new wing builders. If you follow the current order on the plans, you won’t be able to get two bottom skin rivets installed (see above picture) and perhaps not be able to set one┬árivet on the aileron gap fairing nearest the doublers now added. I “think” if you replaced the respective rivets with “cherry max” type pulled rivets, you could actually get the doublers in place with little impact to the build order. I will have to let it sit perhaps until Van’s shows us “new” wing builders how it should be done.

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