Double mileage campaign on Tokyo Narita - Helsinki route

You know this is coming! Japan Airlines (JAL) is celebrating the launch of the new Tokyo Narita (NRT) - Helsinki (HEL) route with a double mileage campaign! JAL Mileage Bank members who have registered for this campaign and fly on this route between February 25 and May 31 2013 are eligible. Below are the details of this campaign.

Campaign Period
February 25 - May 31 2013 (flight date)

Eligible Members
JAL Mileage Bank members who have registered for this campaign before travel. Post travel registration is not eligible

Eligible Flights
JAL413/414

Eligible Booking Classes
J/C/D/X/Y/B/H/K/M/L/V/S

* All-inclusive tour fares etc applied to package tours (Economy class) are ineligible.

Unlike the current Boston and San Diego double mileage campaigns, heavily discounted business class tickets booked under I class is ineligible for the Helsiniki campaign.