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July 2023
What’s inside…

8 Featured Plane 
Cherokee Six Market Report & Tips 
By Dan Brownell 

16 Avionics 
Carbon Monoxide Revisited 
By Bob Hart 
Guardian Avionics 
uAvionix/ForeFlight Sentry and Sentry Plus 
Lightspeed Aviation 

20 Sky Talk
Modifications and Upgrades: 
How Improvements Affect Insurance 
By Scott “Sky” Smith  

22 Wings of Hope 
Video overview of Wings of Hope 

24 Repairing Piper Fuel Tanks: 
PA-28 and PA-32 Series 
Part 1: Fuel Tank Removal 
By Jacqueline Shipe 

34 Preparing for Your Next Flight Review 
By Scott Sherer 

44 Industry News 

46 Hangar Tip  
Replacement Air Vents: 
Obvious Innovations Product Review 
By Scott Sherer 

42 Member Photos  

6 From the Editor 
45 Advertising Index 

On the Cover: Photo of Scott Bounds’ 1967 Cherokee Six by Jack Fleetwood (