Primer lines need to be silver soldered into their fittings. Using RTV to fix a leak is not acceptable and poses a serious fire hazard.
![[Credit: Wikimedia Commons]](https://www.kitplanes.com/wp-content/uploads/2026/07/4_rutan_a_longez.jpg_preview.jpg?w=218&h=150&crop=1 "Rutan Symposium Turns to the Coming Canard Maintenance Crisis")
![The week ahead: a KC-135 tanker passes over the grounds at EAA AirVenture Oshkosh, where Phillips 66 will set up at tents #430 and #431. [Credit: USDA Forest Service]](https://www.kitplanes.com/wp-content/uploads/2026/07/Screenshot-2026-07-22-at-10.01.04-AM.jpg?w=218&h=150&crop=1 "Phillips 66 Sets Course for Oshkosh With Specials, Seminars—and Popsicles")
![[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
![[Credit: Lisa Turner]](https://www.kitplanes.com/wp-content/uploads/2026/10/Chute-Topaz-Gigapixel-2x-scale.jpg?w=324&h=160&crop=1 "Should You Consider A Whole Aircraft Parachute?"){kind=tracking}
Should You Consider A Whole Aircraft Parachute?
The rugged landscape unfolded in front of me. Forest stretched for as far as...
Wind Tunnel
Learn how wingtip vortices are generated and how wake turbulence can affect your aircraft.
Unairworthy: Isolator Mount Problems
Rubber isolator mounts should not have a gap between them and the engine mount when properly torqued.
