For those of us ex-NCA not currently at home to receive this 'letter', any detail on what exactly PMA's problem is? Is it that no NCA flying time should ever have counted towards O's flying pay, or that it doesn't count if you went Pilot or Nav instead of AEO/Eng Ldr/Loadie Ldr ? As Mattdog says, an old copy of the AP3392 in force at the time would surely back us up - anyone got a copy??