ERA20LA037

NTSB accident investigation · Mosquito XE · Seffner, FL · November 2, 2019

Accident · Serious injuriesClass 3 · LimitedFinal report
Date
November 2, 2019, 13:10 local (18:10 UTC)
Place
Seffner, FL
Injuries
1 serious
Damage
Substantial damage
Phase of flight
Landing
Aircraft
UNREGMosquito XE
Defining event
Landing-flare/touchdown: Loss of control on ground
Weather
Visual (VMC) · Day
Status
Completed
Report
Approved by Office Director
Investigation class
Class 3
NTSB office
Eastern Region Aviation
Parties
FAA/FSDO
Case key
100570

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 pilot's failure to maintain control of the helicopter while landing, which resulted in a hard landing and dynamic rollover. Contributing to the accident was the pilot's lack of helicopter experience.

Findings · 4

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.

Use of equip/info: aircraft controlPersonnel issues › Task performance · PilotAll aircraft: 9,295 casesProbable cause
Experience/qualifications: qualification/certificationPersonnel issues › Experience/knowledge · PilotAll aircraft: 280 casesProbable cause
Training: total instruct/training recvdPersonnel issues › Experience/knowledge · PilotAll aircraft: 24 casesProbable cause
Performance/control parameters: descent/approach/glide pathAircraft › Aircraft oper/perf/capability · Not attained/maintainedAll aircraft: 809 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 pilot, who did not hold a helicopter rating, stated that when he was trying to land his single-seat, unregistered experimental helicopter, he landed too fast and the main rotor blade flexed and struck the tail before the helicopter rolled over. The pilot's neighbor stated that the pilot purchased the helicopter about 6 months before the accident, and he would practice taking off from her property, located behind his house. She said that the helicopter landed hard and began "bouncing around" before it flipped over and crashed. The pilot reported that the helicopter had accrued 16 hours at the time of the accident and that there were no mechanical deficiencies that contributed to the accident.

Factual narrative

On November 2, 2019, about 1310 eastern standard time, an unregistered experimental, amateur-built Mosquito XE285 helicopter, sustained substantial damage while attempting to land at a private residence in Seffner, Florida. The private pilot was seriously injured. The helicopter was owned by the pilot and operated as a Title 14 Code of Federal Regulations Part 91 personal flight. Visual meteorological conditions prevailed, and no flight plan was filed for the flight that departed the residence about 1255. The pilot stated he landed too fast and the main rotor blade flexed down and struck the tail. The helicopter then rolled over. The pilot's neighbor stated that the pilot purchased the single-seat helicopter about 6 months before the accident, and he would practice taking off on her property located behind his house. She said that she watched him "land hard and began bouncing around." The helicopter continued to bounce, before it flipped over and crashed. The single-seat helicopter was manufactured in 2019 and had accrued a total of 16 flight hours at the time of the accident. The pilot was not rated in helicopters, but did hold a private pilot certificate with a rating for airplane single engine. His last Federal Aviation Administration (FAA) third-class medical certificate was issued on January 15, 2015. At that time, he reported a total of 200 flight hours. The pilot reported that there were no mechanical deficiencies with the helicopter prior to the accident. At 1335, weather at Tampa Executive Airport (VDF), located about 15 miles northwest of the accident site, was reported as calm wind, visibility 10 miles, scattered clouds at 3,500 ft, broken clouds at 4,500 ft, overcast clouds at 6,000 ft, temperature 27°C, dew point 22° C, and a barometric pressure setting of 30.01 inches of mercury.

Aircraft

Registration
UNREG
Reported as
Mosquito XE (285)
Category
Helicopter, amateur-built
Serial number
MXE1330E18B
Built
2019
Airframe hours
16
Engine
Inntec 800, 85 horsepower, reciprocating
Damage
Substantial damage
Flight
Personal · Part 91
Airworthiness certificate
Special, Experimental (Special)
Departed
None · Seffner, FL
Destination
None · Seffner, FL
Equipment
None

Flight crew

As NTSB recorded them. NTSB leaves out names.

Role
Pilot
Age
70
Injuries
Serious
Certificate
Private
Airplane ratings
Single-engine land
Medical
Class 3, With waivers/limitations
Last flight review
August 1, 2019
Seat
Center
Restraint
Lap only
Flight hours
200 total

Weather

Conditions
Visual (VMC) · Day
Wind
Calm
Visibility
10 statute miles
Lowest ceiling
4,500 ft broken
Temperature
81 °F, dew point 72 °F
Altimeter
30.01 inHg
Observed at
VDF, 15 nm away

Docket · 3

The files NTSB released with the investigation on June 10, 2020, on NTSB’s docket system: statements, records, photos and specialists’ reports. 1.1 MB in all.