Originally Posted by
enuff
Not quite Nosmo. Those models were actually 747-300's. They had the extended upper decks, three man crews and the big giveaway was no winglets. Those A/C replaced JALs 747-100SRs which were used for the domestic Japanese market.
Look up 747-400D in Wikipedia.
The 747-400D (Domestic) is a high density seating model developed for short-haul domestic Japanese flights. The aircraft is capable of seating a maximum of 568 passengers in a 2-class configuration or 660 passengers in a single-class configuration. The -400D lacks the wing tip extensions and winglets included on other variants. The benefits of winglets would be minimal on short routes. The -400D may be converted to the long range version when needed. The 747-400D is also unusual in having more windows on both sides of the upper deck than the basic -400 series. This allows for additional seating all the way down the upper deck, where a galley is situated on most international models. The 747-400 Domestic first flew on March 18, 1991 and entered service with Japan Airlines on October 22, 1991.