RR 250-C20B start
Have a C20B that fails to light off on first start at 15%, but will light at 8-10%
Then after light off will quit at +/- 40% and throttle needs to be open wide to keep start going. Installation in a 500D. Warm starts are fine.
When N2 set at 102% experiences large torque changes with small collective inputs then stabilizes. Are we looking at bellows problem ??? Governor ???? FCU ?????