ERA24LA153

NTSB accident investigation · Denzil Velarde MTO Sport · Tavernier, FL · March 24, 2024

Accident · Minor injuriesClass 3 · LimitedFinal report
Date
March 24, 2024, 14:10 local (18:10 UTC)
Place
Tavernier, FL · Private Airstrip; Tavernaero Park
Injuries
2 minor
Damage
Substantial damage
Phase of flight
Initial climb
Aircraft
N291AGDenzil Velarde MTO Sport
Defining event
Initial climb: Miscellaneous/other
Weather
Visual (VMC) · Day
Status
Completed
Report
Approved by Office Director
Investigation class
Class 3
NTSB office
Eastern Region Aviation
Parties
FAA/FSDO
FAA report
20240324004059A
Case key
193983

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

On this page

Probable cause

The gyroplane’s encounter with a tailwind during the initial climb, which resulted in a loss of airspeed and subsequent forced landing.

Findings · 2

NTSB’s coded findings. Those marked are part of the probable cause; the rest are factors or other findings. Under each, the cases with the same finding.

Performance/control parameters: climb rateAircraft › Aircraft oper/perf/capability · Attain/maintain not possibleDenzil Velarde MTO SPORT: 1 caseAll aircraft: 265 casesProbable cause
Wind: sudden wind shiftEnvironmental issues › Conditions/weather/phenomena · Effect on operationDenzil Velarde MTO SPORT: 1 caseAll aircraft: 114 casesProbable cause

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.

Analysis

The gyroplane was unable to maintain sufficient airspeed and altitude after takeoff, so the pilot attempted to “land like a helicopter” on a side road. While maneuvering to land, the wind blew the gyroplane backward and the tail section impacted a concrete fence. The gyroplane came to rest on its side and sustained substantial damage to the fuselage and empennage. The pilot reported the winds were variable at 10 knots. Postaccident examination of the engine and airframe did not reveal evidence of any mechanical failures or malfunctions that would have precluded normal operation. Although the calculated relative humidity showed the possibility of carburetor icing at low power setting, the pilot had only operated the gyroplane for about six minutes before taking off, which likely was not a sufficient amount of time for carburetor icing to form. It is likely that shifting winds resulted in a tailwind during the takeoff, and the gyroplane did not have sufficient airspeed at liftoff to maintain flight.

Factual narrative

On March 24, 2024, about 1410 eastern daylight time, an experimental amateur-built MTO Sport gryoplane, N291AG, was substantially damaged when it was involved in an accident near Tavernier, Florida. The pilot and passenger sustained minor injuries. The gyroplane was operated as a Title 14 Code of Federal Regulations Part 91 personal flight. The pilot stated that he performed an engine run-up with no anomalies at Tavernaero Park Airport (FA81), Tavernier, Florida. About six minutes after engine start up, shortly after takeoff, the pilot noted that the gyroplane was unable to maintain sufficient airspeed and altitude. With little runway remaining, the pilot turned the gyroplane left to “land like a helicopter” on a side road; however, the wind blew the gyroplane backward and the tail section impacted a concrete wall. The gyroplane flipped onto its side and sustained substantial damage to the fuselage and empennage. The pilot initially reported to a Federal Aviation Administration inspector that there were no issues with the engine power and stated that he just did not have enough airspeed at liftoff and the wind might have shifted to a tail wind. Subsequently, the pilot stated that he believed that engine stopped producing power shortly after takeoff. The airframe and engine were examined after the accident and the throttle and choke control were continuous from the cockpit to both carburetors. The airframe fuel system remained intact, and no loose or broken fuel lines were observed. Fuel recovered from both carburetor bowls was consistent with automotive gasoline with no water or debris contamination observed. The electrically driven fuel pumps operated normally. Compression and suction were achieved on all cylinders, and borescope examination of the cylinders revealed no anomalies. The examination of the engine and airframe did not reveal evidence of any mechanical failures or malfunctions that would have precluded normal operation. At 1353, the weather reported at The Florida Keys Marathon International Airport (MTH), Marathon, Florida, about 33 nautical miles west of the accident site, included a temperature of 75.2°F and a dew point of 62.6°F. The calculated relative humidity at this temperature and dewpoint was about 65%. The pilot reported the local wind was variable at 10 knots.

Aircraft

Registration
N291AG
Reported as
Denzil Velarde MTO Sport
Category
Gyroplane, amateur-built
Serial number
M01280
Built
2017
Airframe hours
520
Engine
Rotax 914UL, 115 horsepower, reciprocating
Damage
Substantial damage
Flight
Personal · Part 91
Registered owner
N291ag Co
Airworthiness certificate
Special, Experimental (Special)
Last inspection
Continuous airworthiness · January 13, 2024 · 478 hours before
Destination
Same as departure
Airport
FA81 · Tavernaero Park, runway 26, 2,175 × 95 ft, grass/turf
Equipment
ADS-B, Handheld GPS

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.

Flight crew

As NTSB recorded them. NTSB leaves out names.

Role
Pilot
Age
80
Injuries
Minor
Certificate
Sport Pilot
Medical
Sport pilot
Seat
Front
Restraint
3-point
Flight hours
1,200 total · 725 as pilot in command · 51 in the last 90 days · 16 in the last 30 days

Weather

Conditions
Visual (VMC) · Day
Visibility
10 statute miles
Lowest ceiling
None
Temperature
75 °F, dew point 63 °F
Altimeter
29.87 inHg
Turbulence
Unknown
Observed at
MTH, 33 nm away
METAR
KMTH 241753Z AUTO VRB04KT 10SM CLR 24/17 A2987 RMK AO2 SLP114 T02440172 10244 20211 58005 $

Docket · 7

The files NTSB released with the investigation on January 2, 2025, on NTSB’s docket system: statements, records, photos and specialists’ reports. 7.7 MB in all.

FAA reports on this event · 1

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