This is a very critical bolt that attaches the horizontal stabilizer to the fuselage in an aerobatic airplane. The bolt is not tight, and the hole is out of round!
![[Credit: Lisa Turner]](https://www.kitplanes.com/wp-content/uploads/2026/02/Fuel-Selector.jpg?w=218&h=150&crop=1 "Fuel Follies")
In Case You Missed It
What’s New
Master Mechanic introduces the Swift Driver, Aircraft Spruce launches an online magazine and offers a simplified FAR/AIM book, and California Power Systems carries Rotax 912 engine rubber replacement kits.
Cable Ties For Ballast
Cable ties will become brittle over time and can break. Having weights come loose during flight, especially near the control system, could really ruin your day.
Ask the DAR
When do service bulletins have the force of law with regard to Experimental/Amateur-Builts?
Future Fuels, Part 2
When 100LL phases out, the replacement will almost certainly be a 100-octane equivalent. But which one? By Paul Bertorelli.