Repost from tail of LB
Looks like anons grokked the tail number correctly. B1976 is indeed an Air China. Pic related is its current activity.
B-1976
CCA439 / CA439
En route and on time
Arriving in 1 hour 42 minutes
Operating as Air China 439
CKG Chongqing, China
ICN Seoul, South Korea
left Gate H6 Chongqing Jiangbei Int'l - CKG
arriving at Gate 34
Incheon Int'l - ICN
Saturday 01-Dec-2018