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Old 03-22-2021, 07:39 PM
dpansier's Avatar
dpansier dpansier is offline
Join Date: Jan 2006
Location: Green Bay, WI (GRB)
Posts: 514

Reference the "Waddington Effect"
Don Pansier
Green Bay, WI (GRB)
RV-7 N450DP

Antennas for Experimental Aircraft
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Old 03-22-2021, 09:51 PM
blaplante blaplante is offline
Join Date: Jan 2010
Location: Southern California
Posts: 186
Default A worst case

Worst case outcome of I thought the bolt was in the hole
First Flight Hemet California
RV6A in phase 2 as of April 2016
Donation made Oct 2020
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Old 03-22-2021, 11:09 PM
BobTurner BobTurner is offline
Join Date: Dec 2011
Location: Livermore, CA
Posts: 7,343

Rv10 close call a few years back: pilot lost pitch control on very short final, hit hard nose first, broke nose gear. Inspection revealed that during final assembly, control system nut was removed; rigging template installed; rigging accomplished; template removed. Builder forgot to reinstall the nut. Bolt eventually came loose.
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Old 03-23-2021, 04:29 AM
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pierre smith pierre smith is offline
Join Date: Jan 2005
Location: Louisville, Ga
Posts: 7,895
Default Yep.

Originally Posted by dpansier View Post
Reference the "Waddington Effect"
Where planned maintenance caused even more ‘unplanned’ maintenance! An interesting read, with the observation made by a non-aviation man.

Rv10 Sold
46 years ag pilot/CFI
Air Tractor 502/PT-6
Building RV-12, Wings, fuse, emp complete. FWF in progress.
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Old 03-23-2021, 06:12 AM
Steve Melton's Avatar
Steve Melton Steve Melton is offline
Join Date: Apr 2011
Location: Cincinnati, OH
Posts: 3,107

Originally Posted by blaplante View Post
Worst case outcome of I thought the bolt was in the hole
First Flight Hemet California
Wow. that guy missed attaching the wing strut bolts. I'm sure he thought they were properly connected.

Once you have everything assembled properly, the less disassembly you do the better.
Steve Melton
Cincinnati, OH
RV-9A, Tip-up, Superior O-320, roller lifters, 160HP, WW 200RV, dual impulse slick mags, oil pressure = 65 psi, EGT = 1300F, flight hours = 900+ for all

Simplicity is the art in design.
I was born an airplane nut. I have no explanation for it.
My Artwork is freely given and published and cannot be patented.

Last edited by Steve Melton : 03-23-2021 at 06:33 AM.
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