NTSB Prelim: Ostroth Thane L Cozy MK IV | Aero-News Network
Aero-News Network
RSS icon RSS feed
podcast icon MP3 podcast
Subscribe Aero-News e-mail Newsletter Subscribe

Airborne Unlimited -- Most Recent Daily Episodes

Episode Date

Airborne-Monday

Airborne-Tuesday

Airborne-Wednesday Airborne-Thursday

Airborne-Friday

Airborne On YouTube

Airborne-Unlimited-12.08.25

AirborneNextGen-
12.02.25

Airborne-Unlimited-12.03.25

Airborne-FltTraining-12.04.25

AirborneUnlimited-12.05.25

AFE 2025 LIVE MOSAIC Town Hall (Archived): www.airborne-live.net

Sun, Feb 11, 2024

NTSB Prelim: Ostroth Thane L Cozy MK IV

The Airplane Appeared To Increase In Speed, While It Was “Dipping And Turning.”

Location: Half Moon Bay, CA Accident Number: WPR24FA073
Date & Time: January 14, 2024, 19:05 Local Registration: N656TE
Aircraft: Ostroth Thane L Cozy MK IV Injuries: 4 Fatal
Flight Conducted Under: Part 91: General aviation - Personal

On January 14, 2024, about 1905 Pacific standard time, an experimental amateur-built Cozy MK IV, N656TE, was destroyed when it was involved in an accident near Half Moon Bay, California. The pilot and 2 passengers were fatally injured, and 1 passenger is missing and presumed to be fatally injured. The airplane was operated as a Title 14 Code of Federal Regulations Part 91 personal flight.

Multiple witnesses in the area reported hearing the airplane flying near their location. One witness reported that while dining outside, north of the Half Moon Bay Airport (HAF), they heard the airplane, and saw it shortly after. The witness said that the sound of the engine was similar to the sound of coughing, and that the airplane appeared to increase in speed, while it was “dipping and turning.” The witness stated that the engine “cut out” and the airplane appeared to have banked toward the shoreline. Shortly thereafter they lost visual sight of the airplane’s lights.

Review of preliminary Automatic Dependent Surveillance-Broadcast (ADS-B) derived data provided by commercially available source, showed that the airplane departed runway 30 at HAF and enter a left turn just beyond the departure end of the runway. The ADS-B data showed that the airplane had ascended to a maximum altitude of 250 ft mean sea level, with groundspeeds fluctuating between 91 and 87 knots. The last recorded data point was recorded about 4,900 ft north of where wreckage was observed floating in the Pacific Ocean. 

Sections of wreckage, to include fragments of fiberglass, the center fuselage, canopy, engine, and propeller washed on shore about 2,130 ft west of HAF. The wreckage was recovered to a secure location for further examination.

FMI: www.ntsb.gov

Advertisement

More News

Aero-FAQ: Dave Juwel's Aviation Marketing Stories -- ITBOA BNITBOB

Dave Juwel's Aviation Marketing Stories ITBOA BNITBOB ... what does that mean? It's not gibberish, it's a lengthy acronym for "In The Business Of Aviation ... But Not In The Busine>[...]

NTSB Prelim: Rutan Long-EZ

The Pilot Attempted Several Times To Restart The Engine And Diverted To Long Beach Airport/Daughtery Field On October 20, 2025, about 1603 Pacific daylight time, an experimental am>[...]

ANN's Daily Aero-Term (12.05.25): Hazardous Weather Information

Hazardous Weather Information Summary of significant meteorological information (SIGMET/WS), convective significant meteorological information (convective SIGMET/WST), urgent pilot>[...]

Aero-News: Quote of the Day (12.05.25)

"The latest development underscores the government of Malaysia’s commitment in providing closure to the families affected by this tragedy..." Source: From statements made by >[...]

Airborne-Flight Training 12.04.25: Ldg Fee Danger, Av Mental Health, PC-7 MKX

Also: IAE Acquires Diamond Trainers, Army Drones, FedEx Pilots Warning, DA62 MPP To Dresden Tech Uni The danger to the flight training industry and our future pilots is clear. Dona>[...]

blog comments powered by Disqus



Advertisement

Advertisement

Podcasts

Advertisement

© 2007 - 2025 Web Development & Design by Pauli Systems, LC