Smoke aboard a United Express jet at George Bush Intercontinental Airport in Houston prompted an emergency evacuation on Saturday, October 24, 2026. The flight, UA6153, was scheduled to travel from Houston to Atlanta.
Mesa Airlines, the operator, said a cabin sensor indicated smoke shortly after pushback. It described the evacuation as precautionary and said the crew exited safely.
A passenger gave a different kind of detail. He told KPRC 2 that smoke began filling the cabin while the aircraft was taxiing for takeoff.
A passenger described smoke during taxiing as firefighters responded
The passenger’s account places the smoke during taxiing. The operator’s statement describes a sensor alert shortly after pushback. Neither account established what produced the smoke.
The Houston Fire Department sent multiple units to 3950 North Terminal Road after the report. The department said the smoke was out, and authorities declared the aircraft “safe.” Firefighters also described the incident as tapped out.
Initial accounts did not report whether anyone was injured, how many people were aboard or whether passengers left by slides or stairs. The reported evacuation was precautionary, according to the operator; the accounts did not establish the specific method used.
The flight was scheduled for Atlanta and appeared as diverted
UA6153 was scheduled to depart at 7:20 a.m. from Terminal E for Hartsfield-Jackson International Airport in Atlanta. FlightAware listed gate E22 and identified the operating flight as Mesa 6153.
Houston Airport System flight tracking showed the flight as diverted at IAH. That entry records the flight’s status at the airport, not what happened to passengers afterward.
The report did not include passenger rebooking, refund or compensation arrangements. It also did not establish a cause for the smoke or provide an injury count.
The aircraft record identifies an E175 but carries a low-confidence rating
The Aviation Safety Network records the aircraft as an Embraer ERJ-175LR, also known as an E175, registered N88331. The aircraft was manufactured in 2015, with manufacturer serial number 17000530 and General Electric CF34-8E engines.
The database places the event at 12:20 UTC and describes the aircraft as standing on the apron when it was evacuated after an indication of smoke on board. It classifies the service as scheduled passenger flight.
Its record lists zero fatalities and aircraft damage as unknown. It also assigns a confidence rating based on information available only from news, social media or unofficial sources. That record is not an official finding on the smoke’s origin or a final assessment of damage.
FAA certification tests require a 90-second evacuation demonstration
FAA certification rules require a jet with more than 44 seats to demonstrate a full-capacity evacuation to the ground within 90 seconds under simulated emergency conditions. The standard describes a certification test, not the method or timing of Saturday’s evacuation.
The FAA has said transport-category airplanes experience approximately 900 smoke-or-fumes events annually. That figure covers reported events across the category, not a count of evacuations or injuries.
Mesa had another E175 turn back to the Houston airport on September 27. United Express flight UA6309 returned after the first officer’s windshield shattered shortly after takeoff for El Paso. The available account describes a separate event and does not connect it to the smoke report aboard UA6153.
