American Airlines (AA, Dallas/Fort Worth) has announced in its quarterly earnings release that it deferred the phase-out of some of its A320s, B737-800s, and B757-200s due to the grounding of the B737 MAX and delayed deliveries of its A321-200neo.

"We have extended the operating life of some of our A320, 737, and 757 aircraft on a short-term basis. These extensions will allow us more flexibility as we deal with the grounding of the MAX and the late delivery of the A321neo and provide modest and efficient growth to our fleet," CFO Derek Kerr said during an investor's call.

American Airlines has so far taken deliveries of five A321neo and has a further 115 on order from Airbus, including fifty (XLR)s. The airline also ordered 100 B737-8 from Boeing, of which it took twenty-four prior to the type's grounding in March this year.

According to the ch-aviation fleets module, the carrier's older generation narrowbody fleet includes 132 A319-100s, forty-eight A320-200s, 219 A321-200s, 304 B737-800s, and thirty-four B757-200s. It also still operates one MD-82 and twenty-seven MD-83s. All McDonnell Douglas jets are scheduled to be retired by early September 2019.