<_< NH/BB's----I believe informer is more upset at the reference of a Pulse Line failure than MSG3. But like yourself, who knows what go's on in the his mind? The MSG3 program is a maintenance program that looks at things a little differently than the "time controlled" program does. It's main philosophy is, "if it's not broke, don't fix it!" aa will tell you they already are on an MSG3 program. They are, but not to the extent that TWA was. Example: When a 767 "C" chk comes in, one of the things aa wants us to do is change out four different pneumatic valves. Even though there is nothing wrong with them, and there is no history of problems. They were in the aircraft "X" amount of hours, so they are slated to be changed. Frequently the valves we put back on the aircraft don't work as well, or not at all! Or by breaking into the particular system, it creates problems that weren't there originally.This may be an over simplistic description of the program, but the bottom line is less expense for parts, and less "Man-hours" on any given "C" Ch, without compromising safety! TWA tracked the history of a major portion of it's rotable parts and found the old conclusion that a curtain part only had a curtain life expectancy was inaccurate. And sometimes that parts were lasting two, three times longer than times assigned to change them! I personally don't know if I agree with it, but the end result is a faster turn time, with less people!!!