Hate to correct knowlegeable guys like MFALK but I believe it stands for Minimum Approach Break off Hight. It is the minimum hight at which if a missed approach is executed (for the CFM-56 A320) at max landing weight the wheels will not have contact with the runway.
Cheers
MFALK how are you? Long time no contact. Next time your in my neck of the woods drop me a line.
[This message has been edited by CaptA320 (edited 11 April 2000).]