Japan Airlines President Toshiyuki Shimmachi will resign as head of the Scheduled Airlines Association of Japan before his two-year term expires, sources said Tuesday.

Shimmachi wants to concentrate on efforts to restore customer confidence in his company, which has been hit by a series of safety blunders, the sources said.

All Nippon Airways President Mineo Yamamoto will succeed Shimmachi, and the replacement will be formally approved at the association's board meeting Friday, they said.