I read elsewhere that operators of later production batch of the A345 and A346 have been quite happy with the reliability of the two types. It appears that the reliability/breakdown is more restricted to the earlier production batch of the A345 and A346. CX is also one of the earliest A346 operators and appears to suffer the same fate as AC. AC was the A345 launch customer in North America and I believe CX was for the A346 in Asia.