Are we witnessing the biggest engine reliability crisis in modern aviation?

28% of the global fleet grounded - Aviation Review Materials

•  699 of 2,450 aircraft with P&W GTF engines are grounded as of summer 2025:

• A320neo family: 592 (including 44 Wizz Air aircraft ~20% of their fleet)
• A220: 75
• E‑Jet E2: 32

• Recovery now pushed to March 2027 - a year later than planned.

Marketed as “More efficient. Quieter. Greener.”, the GTF story increasingly looks like greenwashing, constantly affected by performance and reliability issues from the start...