I've never been told where these accelerometers are fitted
The three axis accelerometer is located as close as possible to the junction of the three axis' Longitudinal,Lateral,Vertical. On the 767 it's in the left hand wheel well bolted to the keel beam-its about the size of a Rubik's Cube (remember them).
On a 747 it's in the right hand wing gear wheel well.
In the vertical axis they can generally measure between about -3g to +6g and in the lateral and longitudinal axis about -1g to +1g.
