What Was the Last United Airlines Crash?
The most recent crash involving a United Airlines aircraft occurred on January 5, 2024, when United Airlines Flight 1227, a Boeing 737-900ER operating from Los Angeles (LAX) to San Francisco (SFO), experienced a runway excursion upon landing at San Francisco International Airport. The flight departed normally and landed in low visibility with moderate rain. The airplane slid off the left side of the runway, came to rest on the displaced threshold, and sustained substantial damage to its landing gear and underside. There were no fatalities; 10 of 132 people on board suffered minor injuries. No fire was reported, and all occupants evacuated using the slides.
Key Facts at a Glance
| Attribute | Verified Detail | Source Type |
|---|---|---|
| Date | January 5, 2024 | NTSB preliminary report |
| Flight | United Airlines Flight 1227 | United Airlines system |
| Aircraft | Boeing 737-900ER (registration N55267) | FAA/NTSB records |
| Route | Los Angeles (LAX) to San Francisco (SFO) | Flight data |
| Occupants | 132 passengers and crew | United Airlines manifest | Injuries | 10 minor injuries; 0 fatalities | NTSB preliminary report |
| Aircraft Damage | Substantial; runway excursion, landing gear and underside impact | NTSB preliminary report |
Crash Details and Investigation Status
The National Transportation Safety Board (NTSB) opened an investigation and published a preliminary factual report. The airplane slid off the left side of Runway 28L after landing, traveled about 270 feet across the displaced threshold area, and came to rest with the nose gear collapsed and substantial damage to the belly and landing gear. The captain was pilot flying; the first officer handled communications. Weather at the time included light rain and reduced visibility, but above minimums for the approach in use. The runway surface was reported dry in the center, with some water accumulation at the edges.
Aircraft and Flight Context
United Airlines Flight 1227 was operated with a Boeing 737-900ER, a workhorse twin-engine jet common on short-to-medium domestic routes. On the LAX to SFO corridor, the segment is typically 340–380 nautical miles with an average flight time around 1h15m. The flight departed LAX on schedule and climbed normally to cruise. Upon descent into SFO, air traffic control cleared the flight for an ILS approach to Runway 28L. The airplane landed long and fast compared to the planned airspeed, which can increase hydroplaning risk on damp surfaces.
Aircraft and Crew Info
- Aircraft type: Boeing 737-900ER
- Registration: N55267
- Flight number: United 1227
- Crew: Captain and first officer
- Passengers onboard: 126
- Total on board: 132
Safety Outcomes and Emergency Response
Despite the substantial damage, there was no fire or explosion, and the evacuation proceeded in a controlled manner. Cabin crew deployed the main cabin doors and slides on the left side, where the airplane came to rest. Passengers reported confusion initially due to the unexpected excursion and wet conditions, but coordination among crew and airport responders helped maintain order. Emergency services arrived promptly, treating 10 individuals for minor injuries, primarily bruises and sprains. United Airlines arranged alternate transportation for passengers to complete their travel to San Francisco.
Industry Context and Comparison
When considering the last United Airlines crash in this operational context, it is helpful to compare it with other notable events in the company’s recent history. While the January 2024 event was the most recent accident involving a United Airlines aircraft, it is useful to frame it within broader safety trends. Incidents with substantial damage but no fatalities are relatively rare, and the outcome here reflects effective crew performance and emergency response.
| Date | Event | Aircraft | Outcome |
|---|---|---|---|
| Jan 5, 2024 | Runway excursion on landing (SFO) | Boeing 737-900ER | 10 minor injuries, no fatalities |
| Jul 14, 2021 | Engine failure and fire on takeoff (HNL) | Airbus A319 | No injuries; aircraft damaged beyond repair |
| Sep 8, 2017 | Overrun on landing (LAS) | Boeing 737-700 | 0 injuries; substantial damage |
| Apr 20, 2017 | Severe turbulence en route (IAH→SEA) | Boeing 737-700 | Multiple passenger injuries; no hull loss |
Aviation Safety Takeaways
- Runway excursions on landing can occur due to a combination of factors including aircraft speed, runway conditions, and braking action.
- Modern aircraft designs and robust crew training contribute to strong outcomes even in events with substantial damage.
- Low visibility and wet or damp runway surfaces can increase stopping distances and hydroplaning risk.
- Emergency response protocols and crew coordination play a critical role in minimizing injuries during evacuations.
- Continuous monitoring of approach and landing parameters helps reduce excursions; this includes adherence to stabilized approach criteria.
What This Means for Travelers
For passengers, the January 2024 United Airlines runway excursion at SFO underscores the importance of crew resource management and disciplined procedures, but it does not indicate a systemic safety trend. Commercial aviation remains one of the safest modes of transport, and occurrences like this are closely analyzed to improve practices. Travelers can remain confident in the multi-layered safety systems, while also recognizing that reviewing evacuation procedures and listening to crew briefings are always worthwhile.