Why would Graydon write to Marshall of the RAF Sir John Grandy and state ZD576 was "off course by some miles"? Letter D/CAS/16/1/6 (W0279f) dated 4.2.97 refers.
I think we should be told what the true course/destination was, as he was never asked to explain the claim. Otherwise, it will continue to be seen as an attempt to denigrate the skills of the pilots.
If he was being indiscreet and telling the truth, we'd have to start all over again on MoK!