United 787-9 diverts to Athens after cabin fumes over Aegean

By Grace Kim

United Airlines Boeing 787-9 flight UA168 diverted to Athens with 230 passengers and 13 crew after the crew reported smoke fumes in the cabin and selected the 7700 emergency code over the Aegean Sea.

What happened over the Aegean?

Flight UA168 left Tel Aviv Ben Gurion Airport late on Sunday, 8 November, on its scheduled westbound routing to Newark Liberty International Airport, according to Flightradar24 data. AirNav Radar tracked the aircraft at 32,000 feet near the Greek island of Leros when the crew selected the 7700 general emergency code.

The jet turned northwest for Athens International Airport, and the 787 landed in the early hours of Monday local time. AirNav Radar later reported that smoke fumes in the cabin had prompted the diversion, which United acknowledged in a statement.

• Late Sunday, 8 November: UA168 leaves Tel Aviv Ben Gurion Airport on its scheduled Newark routing.
• Over the eastern Aegean near Leros: the crew selects the 7700 code at 32,000 feet.
• During the descent to Athens: the crew jettisons fuel, and fire crews stand by beside the runway.
• Early hours of Monday: the 787 lands safely, and 230 passengers and 13 crew disembark.
• No fire on board, and no injuries reported.

Why did the crew jettison fuel?

Because UA168 carried fuel for a transatlantic crossing to Newark, the aircraft sat well above its maximum landing weight. The crew jettisoned fuel during the descent, The Yeshiva World reported, before continuing to Athens.

Fire crews took positions beside the runway ahead of the arrival, Greek City Times reported. The outlet said there was no fire on board, although the smell prompted concern about a possible electrical issue.

No injuries have been reported, and passengers disembarked normally after the landing, according to Brit Brief, which put the load at 230 passengers and 13 crew. The diversion therefore ended the sector with 243 people in Athens rather than at Newark.

What caused the odour?

United said the flight "diverted to Athens and landed safely to address an odour in the cabin." The airline has not yet confirmed the source of the smell, and it has not publicly set out when passengers will complete their journey to Newark.

Smoke and fume events rank among the most time-critical scenarios a flight crew can face. Even when the cause proves minor, pilots cannot rule out an electrical fire at altitude, so procedures direct crews to land without delay at a suitable airport rather than press on.

Athens offered long runways, full rescue cover and the capacity to look after a widebody load overnight. The decision reflects conservative airmanship that underpins long-haul safety.

The trade was straightforward: fuel spent, aircraft intact, passengers displaced. For United, the arithmetic now includes one grounded 787-9 and 230 passengers to move from Athens.

What happens next?

Engineers in Athens will inspect the 787 to trace the source of the odour. Once they clear it, the aircraft should return to service, while United works to reaccommodate the passengers bound for Newark.

N24993, a Boeing 787-9, operated the flight and carries manufacturer serial number 38269 and line number 1219. Airfleets records show that the jet joined United in April 2025, making it roughly 19 months old, and FlightAware identifies two General Electric GEnx-1B engines as its powerplants.

A relatively young airframe offers little consolation to a cabin that filled with fumes. The next decisive facts will come from the Athens inspection and from any revised itinerary.

Until United identifies the source and publishes a replacement plan, the 787 stays on the ground and the passengers wait. The Aviation Hub said it would update its account as more details emerge.