I agree with Peter. 240/30e-3 = 8K BTW

Metal Oxide resistors usually totally break in half under overload.

Maybe they should have raised it off the board,

They could have not taken into account the voltage rating: See http://www.hkresistors.com/-products...-resistor.html for an example.

240 * 1.4 = 336 V (0 to peak)