coroner's report that said the "pilot was not trained" for this type of sortie.
I suspect that it's terminology. After all, if the flights are supposed to be authorised by a senior officer, then it must be assumed that there would be occasions when authorisation would not be given, i.e. the experience of the pilot is not sufficient for the task e.g. would require further training ergo, "not trained" (in layman's terms).
More like he wasn't current.
Cheers
Whirls