It might be:
R20 10K,1%,0603
(a 10K resistor with 1% tolerance in a 603 size package)
Looks to be SMD (Surface Mount Device)
If you think you can do the rework, just go order one (or a few) here:
Looks like with the cheapest shipping to be about $6
@ $0.83 each, get a few - shipping will stay the same.
But…
Wait until you hear from the FB crew that this is a) the right part and b) a good path forward.
Actually, this looks like a diode…
(forget my last comment… 
)
Let me see if I can find THAT part…
This might be the right part…
Again, need to get buy-off from FB Folks
If it is a diode, the circuit might have had some back-current that caused it to blow, which might mean that aside from frying the part, no other damage may have occurred - just a thought