WPR26LA237

NTSB accident investigation · Autogyro MT03 · San Jose, CA · June 29, 2026

Accident · Serious injuriesClass 3 · LimitedPreliminary report
Date
June 29, 2026, 11:48 local (18:48 UTC)
Place
San Jose, CA
Injuries
1 serious, 1 minor
Damage
Substantial damage
Phase of flight
Takeoff
Aircraft
N423AGAutogyro MT03
Defining event
Takeoff: Loss of engine power (total)
Weather
Visual (VMC) · Day
Status
Investigation ongoing
Investigation class
Class 3
NTSB office
Western Pacific Region
Parties
Rotax, Federal Aviation Administration
FAA report
20260629008619A
Case key
203283

From the NTSB’s public API. By law, NTSB reports can’t be used as evidence in lawsuits over the accident.

On this page

Preliminary report

What NTSB knew early in the investigation. It may change in the final report.

On June 29, 2026, about 1148 Pacific daylight Time, a MTO Sport gyroplane, N423AG, was substantially damaged when it was involved in an accident at Reid-Hillview Airport (RHV), San Jose, California. The pilot was seriously injured, and the passenger received minor injuries. The gyroplane was operated as a Title 14 Code of Federal Regulations Part 91 personal flight. According to the pilot, the purpose of the flight was to take a passenger on a local traffic pattern flight to demonstrate the gyroplane. The pilot reported that the pre-flight inspection, engine start, run-up, magneto check, and pre-takeoff checks revealed no anomalies. Before taking off from runway 14L, he engaged the secondary fuel pump. The pilot stated that the takeoff roll was normal; however, when the main landing gear was about 6 inches above the runway, the radio lost power. He attempted to reset the radio power but was unable to restore it, which he believed was indicative of a master power failure. As the gyroplane approached the departure end of the runway about 130 ft above ground level, the pilot noticed that the gyroplane was no longer climbing and had entered a slight descent. He selected a dirt area off the runway for a forced landing. The gyroplane continued to descend and impacted terrain at about 15 mph. Resulting in substantial damage to the fuselage and main rotor system. The wreckage was recovered to a secure location for further examination.

Sequence of events

The events NTSB coded, in order, by phase of flight. The defining event is the one that best describes the accident. Under each, the cases with the same event anywhere in their sequence.

Aircraft

Registration
N423AG
Reported as
Autogyro MT03
Category
Gyroplane
Serial number
M01235
Built
2015
Damage
Substantial damage
Flight
Personal · Part 91
Destination
Same as departure
Airport
RHV · Reid Hillview of Santa-Clara County

Matched to the registry by N-number and the event date; the registry’s history has gaps, so older matches can be wrong. Compare the reported make and model.

Weather

Conditions
Visual (VMC) · Day
Wind
170° at 6 knots
Visibility
10 statute miles
Lowest ceiling
None
Temperature
72 °F, dew point 52 °F
Altimeter
29.89 inHg
Observed at
KRHV, 0.5 nm away
METAR
METAR KRHV 291747Z 17006KT 10SM SKC 22/11 A2989

FAA reports on this event · 1

The FAA’s own accident and incident reports, matched to the aircraft by N-number and date.