ERA18LA082

NTSB accident investigation · Mosquito XEL · Loxahatchee, FL · January 21, 2018

Accident · Serious injuriesLimited investigationFinal report
Date
January 21, 2018, 15:45 local (20:45 UTC)
Place
Loxahatchee, FL
Injuries
1 serious
Damage
Destroyed
Phase of flight
Takeoff
Aircraft
UNREGMosquito XEL
Defining event
Takeoff: Loss of control in flight
Weather
Visual (VMC) · Day
Status
Completed · report November 6, 2019
Report
Approved by Office Director
NTSB office
Eastern Region Aviation
Parties
FAA
Case key
96701

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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Probable cause

The noncertificated pilot's failure to maintain helicopter control during takeoff. Contributing to the accident were the pilot's lack of recent flight experience and his lack of training and experience in the accident helicopter make and model.

Findings · 6

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
Experience/qualifications: total experiencePersonnel issues › Experience/knowledge · PilotAll aircraft: 126 casesProbable cause
Experience/qualifications: total experience w/ equipmentPersonnel issues › Experience/knowledge · PilotAll aircraft: 269 casesProbable cause
Performance/control parametersAircraft › Aircraft oper/perf/capability · Not attained/maintainedAll aircraft: 1,269 casesProbable cause
Training: training with equipmentPersonnel issues › Experience/knowledge · PilotAll aircraft: 32 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 noncertificated pilot, who was also the owner of the unregistered, single-seat helicopter, was practicing takeoffs, hovers, and landings; it was his first flight in the accident helicopter. After the first successful takeoff and landing, the pilot attempted to perform another takeoff. During the second takeoff attempt, the helicopter gained altitude and began yawing left. The helicopter climbed to about 60 ft and continued to yaw, and it then descended and impacted terrain. Although the pilot had received about 60 hours of dual flight instruction in two other make and model helicopters during the previous 2 years, he had not received instruction in the accident make and model helicopter. Given that the pilot's most recent logged flight experience with an instructor occurred nearly 17 months before the accident and that this was his first flight in the accident helicopter, it is likely that his lack of recent flight experience and lack of training and experience in the accident helicopter make and model contributed to his inability to maintain helicopter control.

Factual narrative

On January 21, 2018, about 1545 eastern standard time, an unregistered Mosquito XEL helicopter was substantially damaged after a loss of control and collision with terrain near Loxahatchee, Florida. The non-certificated pilot/owner was seriously injured. The flight was operated in accordance with Title 14 Code of Federal Regulations Part 91 as a personal flight. Visual meteorological conditions prevailed, and a no flight plan was filed for the flight that departed a private residence. The pilot/owner was performing a test flight. This was his first flight in the accident helicopter. He performed a brief takeoff to a hover maneuver followed by a normal landing. During the second attempted takeoff and hover, the helicopter gained altitude and began yawing to the left. It reached treetop height of about 60 ft and continued to spin before descending and impacting the ground. The single-seat helicopter was purchased by the pilot/owner in a ready to operate condition. It was equipped with a two-blade, semi-rigid main rotor system and was powered by a Compact Radial, MZ202, 60 hp engine. An inspector with the Federal Aviation Administration (FAA) responded to the accident site and inspected the wreckage. The helicopter's skids, lower fuselage, main rotor blades, and tail boom were all damaged during the accident. Review of FAA airworthiness records revealed that the helicopter was not registered and it never received an airworthiness certificate. In addition, there were no maintenance records. At 1553, the reported weather at Palm Beach International Airport (PBI) West Palm Beach, Florida, located 12 nautical miles east of the accident site included: winds from 080° at 16 knots, 10 miles visibility, few clouds at 2,000 ft, broken clouds at 6,500 ft, temperature 24° C, dew point 18° C, and an altimeter setting of 30.14 inches of mercury. According to FAA airman records, the pilot did not possess any FAA-issued pilot certificate. The FAA Inspector reported that the pilot had accumulated about 60 hours of dual instruction in two other make and model helicopters over the preceding 24 months. The pilot's logbook indicated that his last logged flight occurred on August 13, 2016.

Aircraft

Registration
UNREG
Reported as
Mosquito XEL
Category
Helicopter, amateur-built
Serial number
MXE1289
Built
2017
Engine
Mz202, 60 horsepower, reciprocating
Damage
Destroyed
Flight
Personal · Part 91
Airworthiness certificate
None
Departed
Loxahatchee, FL
Destination
Loxahatchee, FL

Flight crew

As NTSB recorded them. NTSB leaves out names.

Role
Pilot
Age
67
Injuries
Serious
Seat
Single
Flight hours
70 total · 0 in this make and model · 0 as pilot in command

Weather

Conditions
Visual (VMC) · Day
Wind
80° at 16 knots
Visibility
10 statute miles
Lowest ceiling
6,500 ft broken
Temperature
75 °F, dew point 64 °F
Altimeter
30.13 inHg
Observed at
PBI, 15 nm away

Docket · 5

The files NTSB released with the investigation on April 2, 2019, on NTSB’s docket system: statements, records, photos and specialists’ reports. 2.5 MB in all.