Today, JAL's 767-300ERs have started flying flights JO72/71 and JO84/83. At the end of the month, JO74/73 and JO78/77 will also down-gauge to 767-300ERs. This change was announced in a press release on April 28, 2010.
Contrary to what was posted in the Sept. 5th post, 1 NRT-HNL flight (JO76/75) was always scheduled to remain a 747-400 until the end of the Winter schedule. This flight was never listed in the April 28 press release as being down-gauged at the end of October 2010.