Carb ice??
I was flying 1000AGL, 17 celsius, 8knot wind from the east. Not exactly sure what the humidity was.
I have electronic carb heat but that was not on at any point throughout the flight.
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I suspect it was carb ice, the first Jabiru powered std xair I built used to stop everytime when you closed the throttle on approach once we installed carb heat it sorted it out.
Seamus
----- Original Message -----
Sent: Saturday, April 30, 2022 10:48 PM
Subject: [XAIR] X Air Hanuman: engine-out
Good afternoon Gents
Background: Jabiru 2200 Bing carburetor was fully serviced for the first time in 14 years by Rotax dealer; also who was my flight instructor who taught me how to fly.
Since the carburetor was off, I decided to route new fuel lines since I did not have a bypass line with a one-way check valve. I also replaced my fuel pump with a brand new fuel pump with a built-in check valve.
Yesterday, I put fresh fuel in and started up the motor for about 10 or 12 minutes and then did a static run test. I went full power for about 10 seconds and then slam their throttle right down to idle to see if it would stall. It did not install. I did this
multiple times on the ground.
Today, I fired up the engine and warmed it up as usual and then did a static run before my first flight of the year. I was flying with a pilot that has 48 years of flying experience in over 30 aircraft.
The takeoff went great but then the master breaker popped as well as my 3 amp transponder breaker also popping. I don't know why this happened as it never happened before but I pushed back in the master breaker and we continue flying without any issues.
As we were approaching to land my airplane everything was going well. I was coming in a little too fast so as soon as I was over the runway I moved the throttle right back to idle position at which point I flared too early and the airplane ballooned a little
bit but nothing crazy. When a lightly kissed the ground and the nose went up the engine all of a sudden installed and the propeller stopped turning. Luckily at that point I was able to land without any hard effects but both of us were extremely shocked the
engine stalled. Thank goodness it was literally right at the end. It easily fired back up and then I did another static run and slammed it back to idle and it did not stop.
I am scratching my head as to why it's stalled. It has never ever done this before. I forgot to use electric boost pump when I was landing which may have helped the issue not even happen? Perhaps it was an air bubble or air pocket that was trapped in the brand
new fuel line?
I do not have any fuel leaks right now or smell any fuel and all my brand new lines are bone dry.
I think it is coincidental that the master breaker and the transponder breaker popping has nothing to do with the engine stopping. But that has never happened to me either.
yesterday I noticed my engine idling at about 12:00 or 1300 RPM so this morning I took out my 7 mm wrench to try and lower the idle stop screw at which point it did and now it idles at about 1,000 RPM.
Any guidance as to the culprits of the engine stopping is greatly appreciated as I intend to fly in 2 days from now and do not want this to happen again. Thank you
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