I had a flickering chip light on my transmission last week during runup (Main module right side). For those not in the know, if the xmsn seizes, the spinny thing up top stops spinning and this usually proves fatal if you aren't on terra firma when it happens.
It would flicker on, stay lit for about 10 seconds, then go out. This cycle repeated 3 times...the system has a 30 second delay for fuzz burn, so if the light comes on, it's already been trying to burn a chunk of metal for 30 seconds. MX pulled the chip detector, cleaned it off (a couple small metal shavings or so I was told), and said good to go!
I run up again, and lo and behold there's a chip light! Goes on, flickers, goes off. MX says, oh that's ok, and at that point I gave them the finger (mentally) and asked for the spare.
Turns out it was a bad chip detector, but no fucking way was I going to take off with a flickering chip.
sorry, I guess this morphed into a mx thread...