Engine failure in flight
in 912 / 914 Technical Questions
9 years ago
Hi guys,
When flying today we had a partial loss of power followed by an engine failure with a successful landing (on a runway, fortunately) with our Rotax 912S. I am hoping that we can get some inputs here.
The first incident happened after 2-3 hours of flying at cruise. The engine suddenly and without warning (no indications were seen at least) lost power to where it almost stopped completely. It then regain power and operated normally with all engine instruments showing normal values.
The aircraft was flown to the closest airport to perform a safety landing. Du to the previous incident the power was not pulled back all the way to idle, but a "high idle" during the pattern. On base the engine stopped completely. During the turn to final two start attempts were initiated, but the engine did not start. A deadstick landing was performed successfully. After landing the engine started up and all indications were normal.
Recently the engine has been a bit hard to start after it has been sitting for a few minutes, but is still warm. (medium warm) It is like it does not ignite. If you let it sit for some time it will start normally.
About the engine:
New fuel-hoses/filters March -15
Overhauled carburetors Aug -15
New floats in carburetors
Changed Sprag clutch April -15
The aircraft flies 25-35 hours per month
Normal cruise RPM 5000
Duc Swirl prop fixed pitch
Time Since New: 1500 hours
Hopefully someone can help us with a lead on this one.
When flying today we had a partial loss of power followed by an engine failure with a successful landing (on a runway, fortunately) with our Rotax 912S. I am hoping that we can get some inputs here.
The first incident happened after 2-3 hours of flying at cruise. The engine suddenly and without warning (no indications were seen at least) lost power to where it almost stopped completely. It then regain power and operated normally with all engine instruments showing normal values.
The aircraft was flown to the closest airport to perform a safety landing. Du to the previous incident the power was not pulled back all the way to idle, but a "high idle" during the pattern. On base the engine stopped completely. During the turn to final two start attempts were initiated, but the engine did not start. A deadstick landing was performed successfully. After landing the engine started up and all indications were normal.
Recently the engine has been a bit hard to start after it has been sitting for a few minutes, but is still warm. (medium warm) It is like it does not ignite. If you let it sit for some time it will start normally.
About the engine:
New fuel-hoses/filters March -15
Overhauled carburetors Aug -15
New floats in carburetors
Changed Sprag clutch April -15
The aircraft flies 25-35 hours per month
Normal cruise RPM 5000
Duc Swirl prop fixed pitch
Time Since New: 1500 hours
Hopefully someone can help us with a lead on this one.
