Thanks for the links.
Here's a follow up question:
Why would thy have to reapply for existing frequencies? Do they have to wait for a single operating certificate from the FAA before "inheriting" NW's traffic rights?
this is how I understand the situation(and stand corrected), I think they would have to wait..
while both companies are operating under different certificates at this time. in order for one airline to obtain a route flown by the other airline(that has the authority) they must apply for that right prior to the S.O.C..
for example, NW could possibly restart JFK-NRT utilizing a 744 and operate that under the existing certificate(which is not happening at this time), since DAL will utilize a 777 prior to the S.O.C. JFK-NRT they must apply for the right to fly that route simply because it is currently operated by another airline(even though it is being merged) under a seperate certificate?
maybe possibly it is a formality to apply and secure any International route currently flown by one airline NW and transfer the route to DAL due to the name change? its just "paperwork" in a way?
even though a a new paint scheme will be on the 744 on the ATL-JFK route it is still considered NW(with a modified brand) due to the seperate certificate. for example, maybe it was an route that is in limbo and not being used such as DCA-ATL-NRT that just isnt being utilized but they held the priority previously? and an application is not necessary or is? applying to transfer a route to another city(that currently exist in another) would seem to be not the same as actually applying for an entirely new route, that was previously non-existent.
even if a route was previously flown prior, if the route is not utilized at all(remains dormant) for a certain amount of time, I would also imagine it would be necessary to re-apply simply for the reason the route would revert back to "available status" giving an opportunity to another carrier to apply. that may be a reason why PDX-NRT is necessary for approval even though NW operates that route under the separate certificate?