JAL B763 near Seoul on Sep 12th 2014, upset injures 7 cabin crew

A JAL Japan Airlines Boeing 767-300, registration N654J from Tokyo Haneda (Japan) to Seoul Gimpo (South Korea), was descending through FL160 about 50nm southeast of Seoul when the aircraft encountered an upset that caused injuries to 7 cabin crew. The aircraft continued for a safe landing at Seoul's Gimpo Airport about 17 minutes later at 17:51L (08:51Z). The injured were taken to hospitals.

Japan's TSB reported that one cabin crew was in hospital for two weeks, the 6 others received cervical sprains. The JTSB reported they received unconfirmed information that three passengers may have received injuries as well, the JTSB is attempting to get more information. The JTSB did not report what caused the upset.

Metars:

RKSS 121100Z 06005KT 5000 HZ FEW030 BKN180 21/16 Q1013 NOSIG

RKSS 121000Z 31004KT 6000 FEW030 BKN180 24/15 Q1013 NOSIG

RKSS 120900Z 29004KT 6000 FEW030 BKN140 24/15 Q1013 NOSIG

RKSS 120800Z 27005KT 6000 SCT030 BKN140 24/15 Q1012 NOSIG

RKSS 120713Z 21002KT 7000 FEW020 SCT030 BKN180 24/15 Q1012 NOSIG

RKSS 120700Z 10011KT 6000 -SHRA FEW020 SCT030 BKN180 23/14 Q1012 BECMG NSW

RKSS 120642Z 22007G22KT 6000 1000NW SHRA FEW020 SCT030 BKN180 23/16 Q1013 WS ALL RWY BECMG NSW

RKSS 120647Z 15013G29KT 4000 1000NW SHRA FEW020 SCT030 BKN180 21/13 Q1012 NOSIG

RKSS 120600Z 20005KT 9999 FEW030 BKN180 26/15 Q1012 NOSIG

RKSS 120500Z 19003KT 330V050 9999 FEW020 BKN180 27/14 Q1012 NOSIG