On Oct 30th 2025, a JetBlue Airbus A320-200 operating a transborder flight from Cancun to Newark suffered a sudden inflight upset at cruising altitude, forcing an emergency diversion to Tampa and leaving several passengers injured after an unexpected and violent descent.
The aircraft, registered N605JB and operating flight B6-1230, was cruising at FL350 about 70 nautical miles west-southwest of Tampa, Florida, when it abruptly pitched down without warning. The rapid descent sent shockwaves through the cabin, throwing passengers and crew forward and causing head injuries to at least three people. The flight crew reported flight control problems as they fought to stabilize the aircraft.
After the initial plunge, the A320 descended rapidly to around 20,000 feet, briefly levelled off, and then continued toward Tampa for an emergency landing. The aircraft touched down safely on runway 01L about 20 minutes after leaving cruise altitude, where emergency services and medical teams were already in position. JetBlue later confirmed that the injured passengers were transported to local hospitals, while all others were assessed by medical personnel at the airport.
The aircraft was removed from service for inspection, and JetBlue dispatched a replacement aircraft to continue the journey to Newark. That relief flight, however, also encountered disruption, diverting first to New York LaGuardia before finally reaching Newark with a delay of roughly 11 hours, compounding the ordeal for passengers.
Technical findings later revealed the cause of the dramatic event. In a Service Difficulty Report submitted to the FAA, JetBlue stated that Elevator Aileron Computer #2 (ELAC2) had failed, triggering an uncommanded pitch-down in cruise flight while the autopilot remained engaged. Data from the flight recorder confirmed the fault, and the defective ELAC unit was replaced before the aircraft was cleared for further service.
The incident quickly drew the attention of safety regulators. On Nov 7th 2025, the U.S. National Transportation Safety Board reported that the aircraft experienced an uncontrolled descent lasting approximately four to five seconds before the autopilot corrected the flight path, likely during an ELAC switch change. The occurrence resulted in 10 injuries on board and prompted the opening of a formal investigation.
Less than three weeks later, on Nov 28th 2025, Airbus issued an Alert Operators Transmission warning airlines that A320-family aircraft equipped with ELAC B hardware running software L104 could be vulnerable to uncommanded elevator movement, particularly when exposed to solar flares. The manufacturer cautioned that, in a worst-case scenario, such a failure could lead to structural exceedance.
That same day, the European Union Aviation Safety Agency responded with Emergency Airworthiness Directive 2025-0268-E, mandating immediate replacement or modification of affected ELAC units before further passenger operations. Only limited ferry flights were permitted until corrective action was completed, underscoring the seriousness of the hazard identified during the investigation.
Although the JetBlue A320 landed safely and all injured passengers survived, the incident highlighted how a brief and unexpected failure at cruise altitude can escalate into a serious safety event, reinforcing the critical importance of redundant systems, rapid crew response, and swift regulatory intervention in modern air transport.
