Why is my MacBook Air backlight going out?

I have a 13 “2017 Macbook Air in great condition…or so I thought. I have taken care of this machine, regularly dusted, etc. It has never been dropped. One day, the backlight just went out. I can see an image on the screen when I hold a flashlight behind the Apple logo. I opened up the back of the Mac to inspect some parts. I checked to see if the backlight fuse was blown (the little P thing on the logic board). Everything looked fine. I didn’t have a voltage tester to inspect further.

Next day I opened up my Mac and it’s working again. I’m sure this has been posted before. Has this happened to anyone else? Can someone point me to the right forum? Thanks in advance.