• IATA director general Willie Walsh accuses engine OEMs of gouging airlines.
• Walsh calls on engine manufacturers to improve performance and customer focus.
• United Airlines CEO Scott Kirby expects engine supply issues to persist for at least five years.
• Rolls-Royce faces criticism from Kirby for its handling of engine supply chain issues.

Walsh's comments may indicate a growing rift between airlines and engine manufacturers, which could lead to increased scrutiny of OEM pricing and performance. The criticism suggests that engine supply chain issues may continue to impact airline operations and profitability, potentially affecting the industry's ability to meet growing demand.