Safeware: Yes I agree, acceptabilty is clearly defined for maintainers and operators. My point is that "acceptability" is constantly changing. It was acceptable for XV260 to fly out of Basra on 4th Sept 2006, one day after a fractured pipe was discovered in the bomb bay of XV255 on 3rd Sept (ONE DAY after the crash). A visual inspection was considered acceptable, when normally eddy current testing would be called for as a minimum. Who decided on this: IPT
DV