Wonder how often that really happens, other than in that very select area of the country? Hard to blame crews, they don't have much to do with centre stored info. If controllers notice something off, and asked, simple fix. Sounds more like NavCan assumes operators would rather not update info to sav...

If you read the text of the letter carefully, it will affect everyone using call signs. Doesn't matter if its centre-stored, or if the company uses a one-call-sign-per-aircraft (dedicated to each registration), or if you simply go out on flight (itinerary, Co. flight note, etc). Your first contact w...