robin02(at)mindspring.com
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 Posted: Mon Jun 04, 2012 7:27 pm Post subject: Glasair-List: Check your wing to fuselage fittings for tight |
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Thanks Mike. Starting an inspection soon. What torque values are you working to? Robin
Sent from my HTC on the Now Network from Sprint!
----- Reply message -----
From: mppalmer(at)aol.com
Date: Mon, Jun 4, 2012 5:06 pm
Subject: Glasair-List: Check your wing to fuselage fittings for tightness!
To: <glasair-list(at)matronics.com>
--> Glasair-List message posted by: mppalmer(at)aol.com
We just completed our 16th "annual" inspection. (17th year of flying, 3300 hrs.) I had rechecked the torque on the front and rear wing to fuselage fittings about seven to ten years ago, but to my surprise, the front screws took another quarter turn this time. The rear bolts were still pretty tight but needed an eighth of a turn.
I'm thinking that installing Countersunk Tinnerman washers on the front screws (which the factory called for in a SB and then later rescinded) might be a good idea. I'm guessing the screw heads are crushing the glass over time and, as with a wood prop and crushing fibers, need constant re-torquing?
(We also checked the engine mount to firewall torque years ago. Those bolts also needed a quarter turn more back then.)
FWIW, we fly straight & level. No aerobatics.
P.S. The plane is still for sale. glasairforsale,freevar.com
Hope this helps,
Mike Palmer <><
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