I’m getting erratic RPM throughout the flight. I looked through the PMag troubleshooting manual but didn’t get clarity on where I should start first. I’m not even clear which wire I should be looking at (I didn’t install these). Any ideas where to start?
It’s definitely electrical as I’m not hearing any change in the RPM
See attached pics -- Check the wire at position #6 on each PMag (green connector). Is it securely seated, can you pull on it and does it come loose?
From there, check the wiring to the GEA 24, J243 (37 Pin "D-Sub") pins 6 (RPM2) and 8 (RPM1); is the wire securely attached to the socket? is the socket securely installed into the connector/backshell?