BreninTW From Taiwan, joined Jul 2006, 1988 posts, RR: 1
Reply 1, posted (4 years 2 months 2 weeks 2 days 5 hours ago) and read 3672 times:
My guess would be to ensure easy replacement of cowls at remote stations in the event of ramp rash.
CX did a similar thing when it took control of KA -- the engine cowls on one of the fleets (I don't recall which one) was changed to the engine colour of the other fleet. This was done to simplify replacing parts (there's a picture in the database of an A330 with the "wrong" colour cowl fitted).