Autobrakes
You are correct in that the Bae 146 does not have autobraking. The system is made up of yellow and green hydraulics which are separate and redundant to one another. These two systems are backed up by emergency manual brakes, which when used gives raw braking action with no antiskid which would result in burst tires. Outside of the fact that not only were the tires all burst and the brakes welded on the aircraft from the use of emergency brakes. The fact is when all four tires are burst the aircraft is too low and a jack cannot be placed underneat and a crane is therefore required to lift and remove it.