ERA25LA327

NTSB accident investigation · Mark Strout Zenair Zodiac 601HDS · Connerton, FL · September 1, 2025

Accident · Minor injuriesClass 3 · LimitedPreliminary report
Date
September 1, 2025, 16:05 local (20:05 UTC)
Place
Connerton, FL · Field 1nm North of X05
Injuries
2 minor
Damage
Substantial damage
Phase of flight
Enroute
Aircraft
N680LMMark Strout Zenair Zodiac 601HDS
Defining event
Enroute: Loss of engine power (total)
Weather
Visual (VMC) · Day
Status
Investigation ongoing
Investigation class
Class 3
NTSB office
Eastern Region Aviation
Parties
FAA/FSDO
FAA report
20250901012379A
Case key
200910

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

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Preliminary report

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

On September 01, 2025 about 1605 eastern standard time, an experimental amateur-built Zenith Zodiac 601 HDS, N680LM, was substantially damaged when it was involved in an accident near Connerton, Florida. The pilot and the passenger received minor injuries. The airplane was operated as a Title 14 Code of Federal Regulations Part 91 personal flight. The pilot reported that he planned to provide rides to four relatives, each on a separate 15-minute flight with a departure from and return to Pilot Country Airport (X05), Brooksville, Florida. In preparation for these flights, the pilot purchased 3 gallons of 89 octane automotive fuel. After he added the fuel, he estimated the airplane's total fuel to be 9.8 gallons prior to the first flight. Before the passengers arrived, the pilot performed a preflight inspection of the airplane and did not notice any abnormalities. On the first two flights, the pilot noted normal engine performance, including normal temperature and pressure readings. The first flight’s duration was 16 minutes, while the second was 12 minutes. The pilot estimated that the total fuel onboard for the accident flight was 6 to 7 gallons. The pilot stated that the airplane’s cruise fuel consumption was 3.8 to 4.0 gallons per hour (gph), and that the 4 gallons of fuel was sufficient for the upcoming 15-minute flight. The pilot departed on the third flight at 1601. He did not notice anything abnormal during the ground roll or with the initial climb rate. About 420 ft above ground level (agl), the pilot reported “the engine suddenly stopped without any warning.” He further explained there were “no abnormal noises, vibrations or power deviations” prior to the loss of engine power. He then adjusted the airplane’s pitch attitude for best glide speed, turned into the wind and prepared for an off-field landing. The pilot attempted to restart the engine twice but was unsuccessful, though he did note that the starter was functioning during these attempts. He then performed a forced landing in a nearby field. During the landing sequence, the airplane nosed over and came to rest inverted. The pilot was able to self-extricate, then helped his passenger through the airplane’s shattered canopy. A Federal Aviation Administration Inspector examined the wreckage at the scene of the accident and observed substantial damage to both wings, the fuselage and rudder of the airplane. Fuel was found in both wing tanks and the fuselage-mounted tank. The header tank was not examined. The wreckage was recovered and retained 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
N680LM
Reported as
Mark Strout Zenair Zodiac 601HDS
Category
Airplane
Serial number
6-3635
Built
2004
Airframe hours
261.9
Damage
Substantial damage
Flight
Personal · Part 91
Airworthiness certificate
Special, Experimental (Special)
Last inspection
Condition · November 1, 2024 · 62 hours before
Departed
X05 · Brooksville, Fl, FL
Destination
Same as departure
Airport
X05 · Pilot Country, runway 36, 3,700 × 75 ft, asphalt
Equipment
ADS-B, Electronic flight bag or handheld device

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
40° at 13 knots, gusting 23
Visibility
10 statute miles
Temperature
88 °F, dew point 73 °F
Altimeter
29.91 inHg
Turbulence
Moderate
Observed at
KBKV, 8 nm away
METAR
METAR KBKV 011953Z 04013G23KT 10SM FEW050 31/23 A2991 RMK AO2 PK WND 05027/1920 SLP128 T03110228=

FAA reports on this event · 1

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