RPM drop with a 914 above 100%
in 912 / 914 Technical Questions
12 years ago
Hello all,
Recently, I had to abort a take off with my Europa 914 airmaster due to the fact that I was facing an RPM drop above 100%. The ROTAX has less than 330 hours.
I already looked at the following items:
- replaced the fuel with fresh one
- fuel pressure is OK
- TCU - transfer function according to heavy maintenance manual and solenoid gets 12V above 108%, so should be OK
- turbo wastegate fully closes
- air filter cleaned up
The issue is still present and my next step is to look at the carbs (membranes have been replaced less than 200 hours ago). Any other ideas? Where should I specifically need to look at the carbs?
The attached file from the TCU log depicts the issue starting from line 989.
Thanks for relevant input.
Jacques
Recently, I had to abort a take off with my Europa 914 airmaster due to the fact that I was facing an RPM drop above 100%. The ROTAX has less than 330 hours.
I already looked at the following items:
- replaced the fuel with fresh one
- fuel pressure is OK
- TCU - transfer function according to heavy maintenance manual and solenoid gets 12V above 108%, so should be OK
- turbo wastegate fully closes
- air filter cleaned up
The issue is still present and my next step is to look at the carbs (membranes have been replaced less than 200 hours ago). Any other ideas? Where should I specifically need to look at the carbs?
The attached file from the TCU log depicts the issue starting from line 989.
Thanks for relevant input.
Jacques
05301132.TXT (You do not have access to download this file.)
