Scottishterrier,
Bond is the training bond for their S76 type rating course. Haughey Air introduced a 2 year training bond and an increased notice period to stop the horses bolting. i.e give 2 years employment or pay back the remaining cost of the money spent on their training. The outstanding cost usually reduces by 1/24th for each month served. I have heard of bonds only reducing in halves and even some requiring total pay back if you leave before the term of the bond.
FNW