The IFPS USer Manual section 73 holds the answer....
Error 244 relates to the ZZZZ in field 9 and the fact that that is not allowed in repeatative flight plans.
However I am not filing a repetative flight plan !!
There is however the following note:
"Where an aircraft type is filed as ZZZZ, that message shall always fail automatic processing in order that the IFPS staff may apply an appropriate aircraft performance to that flight."
I guess that explains that then
