The U.S. National Transportation Safety Board issued a formal rebuke of Ryanair Group CEO Michael O’Leary on July 22, 2026. The NTSB’s objection: O’Leary publicly declared that foreign object damage caused the July 10 Malta Air Boeing 737-800 engine failure — a finding investigators say they have not made.
NTSB Chair Jennifer Homendy sent O’Leary a direct letter stating the board had “not made any such determination.” Homendy noted that investigators had not yet ruled out aircraft age or maintenance history as contributing factors. She called on O’Leary to refrain from further public statements while the investigation remains open.
What O’Leary Said
The rebuke stems from remarks O’Leary made on July 20 during Ryanair’s quarterly financial results presentation to analysts. He stated that “initial indications would suggest that it looks like foreign object damage to the engine on takeoff at Thessaloniki, but we can’t say that definitively.”
Homendy’s response came two days later. Under ICAO Annex 13 — the international treaty governing aircraft accident investigations — parties designated as technical advisers must protect investigation-sensitive information from public release. Ryanair holds that status in the FR1879 probe. By publicly attributing cause before investigators reached any conclusion, O’Leary risked contaminating both the investigative record and public understanding of a still-open inquiry.
The Incident: Background
As FODNews first reported on July 12, Ryanair flight FR1879 was climbing out of Thessaloniki bound for Memmingen, Germany, when its CFM56 turbofan suffered an uncontained failure at approximately 15,000 feet. Debris breached the fuselage and shattered a cabin window at seat 11F. A 61-year-old Serbian passenger was partially ejected through the opening before crew intervened. The aircraft made an emergency return to Thessaloniki. The 737-800 was 18 years old at the time — delivered to Ryanair in 2008 and transferred to Malta Air in 2022.
FOD vs. Fatigue: The Open Question
As FODNews reported on July 22, NTSB investigators had been examining foreign object ingestion as a causal pathway. However, that line of inquiry has never been exclusive.
FAA Administrator Bryan Bedford noted to Reuters that the early characteristics of the FR1879 failure resemble the 2016 and 2018 Southwest Airlines CFM56 incidents. Both were ultimately traced to metal fatigue in fan blade roots — cracks that bypassed standard visual inspection. Those cracks were detectable only via eddy current testing. Consequently, the FAA issued an Airworthiness Directive in 2023 requiring fan blade reinforcement across the global 737 NG fleet, with a compliance deadline of July 2028.
That precedent explains why the NTSB is keeping aircraft age and maintenance history as live causal threads — and why O’Leary’s premature attribution carries real investigative consequences.
Why Premature Attribution Is a Safety Problem
Public cause-attribution by a party to an investigation can narrow how regulators, airlines, and the public interpret an incident. If the industry accepts “FOD” as the answer before investigators do, it could depress urgency around the fan blade fatigue question. That matters given the fleet-wide implications of aging 737 NGs still flying toward a 2028 compliance deadline.
ICAO Annex 13 confidentiality rules exist precisely to prevent premature closure. Homendy’s letter makes clear that Ryanair’s technical adviser status carries obligations, not just access to investigative findings.
The NTSB currently holds the failed engine components in custody and is conducting laboratory metallurgical analysis on the separated fan blade fragments. Those results will distinguish fatigue fractures from impact-induced fractures — a technical determination no CEO statement can anticipate.
Ryanair did not issue a public response to Homendy’s letter.
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Sources
- Reuters — NTSB Has Not Ruled Out Age, Service in Ryanair 737 Engine Incident (July 22, 2026)
- Simple Flying — ‘Foreign Object Damage’: NTSB & Ryanair Clash Over Cause of Boeing 737 Window Blowout (July 23, 2026)
- Irish Times — Ryanair Chief Michael O’Leary Rebuked for Investigation Comment (July 23, 2026)
- ICAO — Annex 13: Aircraft Accident and Incident Investigation
- FODNews — Ryanair/Malta Air 737 Suffers CFM56 Fan Blade Failure Over Greece — Passenger Partially Ejected (July 12, 2026)
- FODNews — NTSB Probe Points to Foreign Object Damage as Trigger of Ryanair FR1879 CFM56 Failure (July 22, 2026)
