ERA23LA228

NTSB accident investigation · Robinson Helicopter R44 II · Bradenton, FL · May 11, 2023

Accident · No injuriesClass 4 · LimitedFinal report
Date
May 11, 2023, 09:27 local (13:27 UTC)
Place
Bradenton, FL · field
Injuries
1 uninjured
Damage
Substantial damage
Phase of flight
Landing
Aircraft
N62HTRobinson Helicopter R44 II
Defining event
Landing: Abnormal runway contact
Weather
Visual (VMC) · Day
Status
Completed
Report
Approved by Office Director
Investigation class
Class 4 - Basic report with no Prelim publish
NTSB office
Eastern Region Aviation
Parties
FAA FSDO
Case key
149067

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 pilot’s failure to maintain adequate rotor rpm during landing which resulted in a premature landing on uneven ground and a subsequent rollover.

Findings · 3

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.

Main rotor system: main rotor blade systemAircraft › Aircraft propeller/rotor · Capability exceededRobinson Helicopter R44 II: 4 casesAll aircraft: 60 casesProbable cause
Terrain: sloped/uneven terrainEnvironmental issues › Physical environment · Effect on operationRobinson Helicopter R44 II: 10 casesAll aircraft: 270 cases

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 of the helicopter reported that while he was on approach to land, he attempted to slow his descent by pulling aft on the cyclic and increased the collective pitch. The low rotor rpm horn sounded as he was beginning to hover in ground effect, and he then began to fly forward slowly. At 20 knots, the low rotor rpm horn sounded again, and his altitude increased to 40 ft above ground level. The rotor speed did not recover, and the helicopter descended until it landed on an uneven berm. The helicopter then pitched forward, the main rotor blades impacted the ground, and the helicopter rolled onto its left side. The helicopter’s tail boom was substantially damaged. The pilot reported that there were no preimpact mechanical malfunctions or failures of the helicopter that would have precluded normal operation.

Aircraft

Registration
N62HT
Reported as
Robinson Helicopter R44 II
Category
Helicopter
Serial number
13709
Built
2014
Airframe hours
3,933.51
Engine
Lycoming IO-540-AE1A5, 245 horsepower, reciprocating
Damage
Substantial damage
Flight
Personal · Part 91
Operator
Registration Pending
Registered owner
Registration Pending
Airworthiness certificate
Standard, Normal
Last inspection
100 hour · May 7, 2023
Departed
SRQ · Sarasota, FL
Destination
Same as departure
Equipment
ADS-B

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
32
Injuries
None
Certificate
Private
Airplane ratings
Single-engine land
Medical
Class 2, Without waivers/limitations
Last flight review
February 26, 2023
Seat
Right
Restraint
4-point
Flight hours
78.1 total · 78.1 in this make and model · 44.1 as pilot in command · 46.6 in the last 90 days · 7.9 in the last 30 days

Weather

Conditions
Visual (VMC) · Day
Wind
120° at 9 knots
Visibility
10 statute miles
Lowest ceiling
None
Temperature
82 °F, dew point 68 °F
Altimeter
30.04 inHg
Observed at
SRQ, 13 nm away
METAR
KSRQ 111353Z 12009KT 10SM CLR 28/20 A3004 RMK AO2 SLP170 T02780200

Docket · 3

The files NTSB released with the investigation on July 7, 2023, on NTSB’s docket system: statements, records, photos and specialists’ reports. 12.7 MB in all.