• American Airlines reduces 2027 long-haul expansion due to aircraft delivery delays.
• Initial plans for 10-13 new routes scaled back to seven new routes and one restored service.
• Delays in Boeing 787-9 and Airbus A321XLR deliveries impact fleet strategy.
• Aircraft delays limit flexibility for growth and retirement of older airframes.

The scaled-back expansion may indicate that American Airlines' growth plans are more vulnerable to supply chain disruptions than initially thought. This could suggest a shift towards more conservative fleet planning and network growth strategies, which may impact the airline's competitiveness in the long-haul market.