Investigation Summary
The Civil Aviation Authority of Thailand said on 22-23 August 2024 that the aircraft departed Suvarnabhumi at 14:46 on a charter for the Soneva Kiri resort on Ko Mai Si, and that Bangkok Approach lost contact at 14:57 when the aircraft was 18.7 NM southeast on 122.35 MHz, having been cleared to 5,000 ft; the altitude actually reached has not been established. All nine on board were killed, among them five Chinese passengers including two children. The aircraft came down in a mangrove swamp and recovery from the mud took several days. The Aircraft Accident Investigation Committee said no flight recorders were required because the aircraft is below 5,700 kg, that maintenance records and all recovered components would be examined, and appealed for video of the flight. It stated explicitly that preliminary suppositions cannot yet be disclosed. A recovered automatic flight data input device was clarified by the AAIC as not being a flight recorder. Reporting as late as September 2025 records that no findings have been shared.
Final Conclusions
No preliminary, interim or final report has been published and no cause has been announced. The AAIC has said that preliminary suppositions cannot yet be disclosed, so no line of inquiry can be attributed to the investigation.
Video Analysis
No video analysis linked for this case file yet.
Systems & Failure Modes
Pratt & Whitney Canada PT6A-114A
The single turboprop engine fitted to the Cessna 208B Grand Caravan. No findings about its condition or output have been published.
Flight Control Surfaces
The Caravan uses conventional cable-operated elevator, aileron and rudder controls with an elevator trim tab. No investigative findings on these systems have been published.
Interesting Facts
- 01The aircraft was cleared to 5,000 ft; the altitude it actually reached has not been established.
- 02Contact was lost at 14:57, 18.7 NM southeast of Suvarnabhumi, on 122.35 MHz.
- 03The flight was a charter for the Soneva Kiri resort on Ko Mai Si; five of the nine killed were Chinese passengers, including two children.
- 04No flight recorders were fitted or required, the aircraft being below 5,700 kg.
- 05A recovered automatic flight data input device was clarified by the AAIC as not a flight recorder.
- 06The AAIC said preliminary suppositions cannot yet be disclosed; as of September 2025 reporting, no findings have been shared.
Safety Actions & Advisories
AAIC investigation opened
Source ↗Thailand's Aircraft Accident Investigation Committee said it would examine maintenance records and all recovered components and appealed for video of the flight, while stating that preliminary suppositions cannot yet be disclosed.
Location
APPROXIMATE AREA ONLY · This position predates coordinate provenance tracking. Treat it as an approximate marker for the area, not the accident site. No map is shown, because a marker here would imply a precision the record does not have.
Reported location: Wat Khao Din, Bang Pakong, Chachoengsao, Thailand