De Havilland DHC-6-300 N344CS accident near San Celmente, California, August 11, 2025
De Havilland DHC-6-300, registration N344CS, operated by Rampart Aviation, was involved in an accident near San Celmente, California on August 11, 2025. The NTSB lists the highest injury level as none. Case WPR25LA250 is in work.
ADS-B receivers recorded 40 minutes of the flight after departing the San Diego/North Island NAS area (KNZY), reaching a maximum of 4,400 ft. The last recorded position was at 18:46 UTC, at 200 ft and 89 knots, descending at 512 feet per minute, about 1 km from San Clemente (KNUC).
The nearest weather report, from KNUC (1 km away), showed wind 230° at 8 knots, visibility 6 miles or more, ceiling 500 ft (IFR conditions).
The aircraft is a de Havilland Canada DHC-6 Twin Otter 300HG registered in United States (Mode S A3CC6D).
This page reconstructs the flight from public ADS-B data for information only. The NTSB report is the authority on what happened and why.
Key facts
- Date
- August 11, 2025
- Location
- San Celmente, California
- Aircraft
- De Havilland DHC-6-300
- Registration
- N344CS
- Operator
- Rampart Aviation
- Injuries
- None
- NTSB case
- WPR25LA250 (In work)
- Departure area
- San Diego/North Island NAS (KNZY)
- Nearest airport
- San Clemente (KNUC)
- Recorded flight
- 40 min, max 4,400 ft
- Last recorded position
- 18:46 UTC, 200 ft, 89 kt
3D flight replay
Replay the recorded flight in 3D with the weather, light and terrain at the time, flight instruments reconstructed from the aircraft's ADS-B transmissions, and automatically detected events.
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- Cessna A185F N185TT, Madera, California, October 1, 2026
- Cessna 172N N75513, Knights Landing, California, October 1, 2026
- Hawker Aircraft Ltd HAWKER HUNTER MK.58 N345AX, Morro Bay, California, September 22, 2026
- De Havilland DHC-6-300 N189GC, Whitmore, Arizona, August 9, 2025
- Dehavilland DHC-6-300 N142SA, Boulder City, Nevada, May 6, 2025
Sources: NTSB case WPR25LA250; ADS-B flight data from adsb.lol (ODbL); weather from NOAA / Iowa Environmental Mesonet and Open-Meteo.