AA has deferred delivery of all 22 A350s:
https://www.flightglobal.com/news/articles/american-defers-a350-deliveries-by-more-than-two-yea-427747/American Airlines has deferred the deliveries of all of the 22 Airbus A350-900s that it has on order, as it works to reduce its capital expenditures and manage capacity through 2018.
The Fort Worth-based carrier will take its first A350 in late 2018 instead of spring 2017, it says in a quarterly financial filing today. Deliveries will continue through 2022, two years later than originally scheduled with an average deferral of 26 months.