Thinking back about every Power anomaly (unexpected Priority) I've ever seen...
I think the only ones I saw I managed to produce myself.
In retrorespect - mostly by ticking through Modules and accidentally toggling one to the right during the scrolling... effectively taking one random Module a Priority lower.
Depending on Control setup (I use the Coolie Hat of my HOTAS) it's fairly easy to do.
But i.e. on new Ships or any changed Configuration while exceeding 100% Power - after leaving the Station exit I
always deploy hardpoints and assess what I see in the Modules Page.
After all, only rounded single-digit numbers which sometimes round in your favor - sometimes against. Lots of room for errors if you're pushing the Power lmits.
PS.
Thinking about the Type-9 @ 101% Power...
With the
usual suspects (FSD, Cargo hatch, Fuel Scoop, Docking Computer) on Prio 2,3,4 and 5 respectively... I wonder how that 1% could have disabled the Sensors even if they accidentally landed on Priority 2 (?)
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@OP
Again, a debriefing is usually a tad harsh - but honest in doing so, no harm intended...
Want to know what Ship I recently added onto my Insurance claims? A perfectly good Type-9
What happened?
Sitting inside the Station Hangar, I click "Launch" and immediately thereafter the hotkey for System Map - thinking
it'll take its due to time to get to the Surface, as usual - I'll make good use of those seconds.
Turns out, the System Map kept loading much longer than I anticipated (which I knew occasionally just so happens - and while it loads there's nothing you can do).
So as I reach the surface, it finally opens.
Okay, I got 5 min to leave the Station... I'll hug the departure pad for 15s and hurry, no sweat.
After those ~15sec in the System Map - I get thrown back out of it... into a powerless Cockpit of my Type-9 now floating right through the center of the Station w/ sparks flying.
Eject! Eject!
So that very day - I re-learned an old lession and a new one
- don't ever rely on the System Map to open quickly. Sometimes it just doesn't

- don't hug the pad (which will lower, rotate and reuturn back up) while entirely not on the Controls...
---> ...the rotation of the Station
will cause the Ship to slide a bit to the side and down if uncontrolled. That huge pad coming back up then is bad news if you're stuck sideways inbetween