UK air accident investigators have provided a fresh update on the anniversary of the tragic London Southend Airport crash that claimed the lives of all four people onboard.

The Air Accidents Investigation Branch (AAIB) said the severe impact and post-crash fire left only limited physical evidence from the Beechcraft B200 Super King Air, registered PH-ZAZ.

According to investigators, the aircraft yawed slightly to the left before rotation. Immediately after becoming airborne, it deviated left of the runway centerline and entered a climbing left turn.

The aircraft reached only around 70 to 80 feet above runway level and had turned approximately 90 degrees before descending towards the ground.

The AAIB said the investigation is focused on establishing what caused the sudden loss of control. Technical, operational, human and organizational factors are all being examined, while aircraft components have undergone detailed analysis in coordination with relevant manufacturers.

Investigators reconstructed the aircraft’s flightpath using witness videos, CCTV footage and ADS-B data. The aircraft was not required to carry a flight data recorder or cockpit voice recorder.

The Beechcraft B200 crashed and erupted into a fireball at London Southend Airport on July 13, 2025. Operated by Zeusch Aviation, the aircraft was involved in specialist operations including medical evacuation and transplant flights.

Witnesses reported seeing the aircraft roll sharply to the left, almost reaching an inverted position, before crashing.

Two pilots, a doctor and a nurse were killed in the tragedy.

One year later, the investigation remains ongoing. The AAIB said its final report will be published once all investigative activities are completed, as the aviation community remembers the four lives lost in one of the UK’s most serious aviation accidents in recent years.