New sound has arisen. It seems to be only at lower engine speeds; ie before landing. My wife took the below this morning from the back seat. It’s a high pitched hum. Sound like anything you’ve heard?
(There were no ventilation fans going.)
I check the data from JPI (I uploaded) and I see where volts dropped for gear deployment and flaps and then back to 28v. So I’m thinking that tells me it’s not the gear motor continuing running to run.
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