Jefferies, the investment bank, delved into the European aerospace and defence sector in a recent research note, with Rolls-Royce Holdings PLC (LSE:RR.) in the spotlight.
CEO Tufan Erginbilgic faced a challenge at the jet engine maker's annual meeting, having to justify his "underperforming company" remarks.
Erginbilgic explained his comments as a wake-up call to staff, stressing that the company's ongoing transformation is starting to yield results. Rolls remains on Jefferies' 'buy' list.
Elsewhere in the skies, Turkish Airlines is planning a significant expansion, the bank noted.
Chairman Ahmet Bolat let slip that they are in talks to order 600 new aircraft from Airbus and Boeing, potentially pushing the airline's fleet to 810 by 2033.
Meanwhile, the bankrupt Indian airline Go First is in a standoff with Pratt & Whitney over leased engines.
P&W is pushing back, stating Go First's failure to pay for maintenance and leases led to the supply issue. Jefferies suggests that until this situation resolves, MTU Aero's shares could remain under pressure.