Originally Posted by
jsloan
Keep in mind, the 787-9 has an ETOPS rating of 330 minutes -- 5 1/2 hours. Barring additional issues, there is plenty of time to turn around and go back to the US, or to go forward to Japan, if UA1 encountered an issue halfway between Alaska and Tokyo. UA1 is not landing in Russia if there are any other viable alternatives.
The 777 does as well, although not all operators are ETOPS 330. AI could have made PANC within 330 min.