BillL
Well Known Member
A good reminder before first flight, or the next flight.
During checkout I found a cross wired breaker on my professionally wired panel. It can happen, this is a good point for the commissioning of a new aircraft, that is to check every breaker to ensure it is properly connected as designed and expected.
There was a fatal accident with our EFI installed on an Egg 6 engine a number of years back, which I helped the TSB up here investigate since they were unfamiliar with these engines or EFI. After going over the obvious, I found the cause in about 15 minutes for the power loss. Injector power was mis-wired to the wrong breaker value (adjacent breaker). In this case a 3 amp one.
It did not show up in extensive ground running as the rpms did not get quite as high as they did with the prop unloaded a bit in flight (current draw a bit higher at higher rpms). Engine stopped at about 300 feet after takeoff and a landing was attempted on the crossing runway. Stall/spin and my friend test flying, was killed.
As Dan said, this is vitally important stuff.
For Vertical Power users, please read our warnings about setting breakers values on these devices when using our EFI.
During checkout I found a cross wired breaker on my professionally wired panel. It can happen, this is a good point for the commissioning of a new aircraft, that is to check every breaker to ensure it is properly connected as designed and expected.