Heard frm the 7501B BC that he keep hearing sparks from the
A/C throughout his duty. similar to 7888K?
I've heard them on 7505, manage to locate it to under the last
row of seats on the upper deck. I believe I saw sparks too, but I'm
not really sure.
EDIT: To add on, I saw it slightly to the right (when facing
toward the rear of the bus), approximately behind the seat nearer
to the corridor.
