In this in-depth episode of Aviation Masters, Mike Busch sits down again with George Braly to tackle some of the most urgent issues facing general aviation today.

From aging aircraft fuel system failures to the FAA’s draft unleaded fuel transition plan, and from certification gridlock to PMA delays, this episode dives deep into what aircraft owners, mechanics, and industry leaders need to understand right now.

If you own, maintain, or operate piston aircraft — this conversation affects you.

⏱ Chapters

03:00 – Elastomers, O-Rings & Why Old Seals Are Causing Fires

07:00 – Upgrading to Modern FKM (Fluorosilicone) O-Rings

11:30 – Why Fuel Leaks Don’t Always Show Up During Inspections

18:00 – FAA Draft Plan to Transition to Unleaded Avgas

21:00 – The Risks of Modifying Engines for Lower-Octane Fuel

26:00 – How Retarded Timing Impacts Horsepower & Twin Safety

33:00 – Is There Already a True Drop-In Replacement for 100LL?

41:00 – FAA Reorganization: Why Certification Is Slower Than Ever

48:00 – DERs, ODAs & Why Delegation Keeps Aviation Alive

57:00 – PMA Parts, OEM Shutdowns & The Parts Supply Crisis

1:04:00 – Is Certification Still Worth the Cost?

1:08:00 – What Aircraft Owners Should Do Now

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