https://press.jal.co.jp/ja/release/202001/005456.html
apparently A359 config can be changed in 4 days with QCC. So JL is going to reconfig some A359 during peak season gland deploy to popular routes like HND-OKA. The new X02 config will have reduced Class J cabin (94 -> 56) and a bigger Y cabin (263 a
-> 323). This isn’t good for people trying to upgrade to Class J on day of departure.
