Their website very unreliable. Flew JFK/Tpe in business and it's old 747-400. Did roundtrip Taipei/KL, old airbus with no power either.

HK route and Taipei to west coast use newer planes so in theory you'll get power....

I stop flying them for over 10 yrs and purely coincidental on this trip that I flew them...besides their safety record being not the best, i know now why i stopped flying them years back. Definitely sticking with singapore, cathay and thai whenever possible, even Eva is better.