Originally Posted by
asiadxer
The delays on BR11 & BR12 are caused by insufficient turnaround time mainly at TPE but also LAX. The 77A aircraft used for BR11 most of the times comes from either Saigon or Beijing scheduled to arrive in TPE around 17:00. Flightaware data for B-16718/19/20 showed average of 2+ hours of unloading/cleaning/loading the aircraft. So delay on BR11 scheduled departure of 18:25. The late arrival of BR11 will in turn delay the departure of BR12 (LAX-TPE).
BR12 is TPE-LAX 11 is LAX-TPE. Both EVA and China Airlines follow the convention in the numbering.
Evergreen runs a tight ship and EVA runs a tight airline. It used to be the gate agents had to write reports if the flight was delayed. All that said, it sounds like bad planning to not leave big gaps for flights coming from PEK or SHA/PVG.
OP's link shows some flgihts taking over 14 hours. That seems very long - the longest flying time I experienced was 13:45. Maybe the routing is hurting things too.