AS350b2 (Ariel 1D1) power check
Aircraft has started hitting the unsat side of the graph on a regular basis, after bouncing around near the line for the 10 months it's been here. We've checked for compressor section visually, looked for leaks, checked the free air temp and torque calibration. NG remains to be checked, and most interestingly, something internal to the module 5 of the engine. For which I've been requested to perform a "climb power check"-but can find no rotorcraft flight manual entry describing the test. If you can point me to it in the RFM, or describe the test and your experiences, I could sure use some insights...
All other suggestions welcome.