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Accidents · NTSB ERA24LA171 · Final report

Robinson Helicopter Company R44 II accident near South Kingstown, Rhode Island, April 9, 2024

On April 9, 2024 at about 12:30 pm local time, a 2023 Robinson Helicopter Company R44 II, registered N331EL, was substantially damaged in an accident during maneuvering (low-alt flying) near South Kingstown, Rhode Island. It was an other work-use flight under general aviation rules (Part 91). No one was hurt; 2 people were on board or involved. The weather was visual conditions (good weather).

The NTSB's probable cause their words, unchanged

The pilot’s failure to maintain clearance from the water while maneuvering at low altitude.

Source: NTSB aviation accident database, copy made October 5, 2026. Docket and reports at the NTSB.

What the record shows

Date
April 9, 2024 · about 12:30 pm local time
Place
South Kingstown, Rhode Island · map
Type
Accident
Injuries
No one was hurt; 2 people were on board or involved.
Weather
visual conditions (good weather)
Aircraft
Robinson Helicopter Company R44 II, built 2023
Registration
N331EL · registry record · serial 14667
Damage
Substantial damage
Flight
Other work-use flight · general aviation rules (Part 91)

The NTSB's narrative final · quoted from the NTSB record

The pilot was practicing various flight profiles over a pond in his helicopter. After completing the first profile, he began a profile that included a normal takeoff, a 10-ft hover, an acceleration to 40 kts, a climb to 50 ft above ground level, then a return to a 10-ft hover. On the pilot’s second attempt at this maneuver, when decelerating and descending back down to a 10 ft hover, the helicopter descended too low. The front skids caught the water and the helicopter descended into the pond, substantially damaging the tail rotor assembly and the main rotor blades. The pilot reported that there were no preimpact mechanical malfunctions or failures of the helicopter that would have precluded normal operation. He also described that the weather and water conditions at the time of the accident were “calm and clear with no wind ripples on the water surface,” and that this produced a “mirroring effect” that hindered his depth perception.

The complete narrative as the NTSB published it. The NTSB's docket holds the report as a PDF and any photographs, statements and other documents from the investigation.

The factual record from the NTSB's investigation tables, in plain English

What happened, in order

  1. Low altitude operation/event during maneuvering (low-alt flying) defining event

The NTSB's findings

  • Aircraft › Aircraft oper/perf/capability › Performance/control parameters › Altitude › Not attained/maintained
  • Environmental issues › Physical environment › Terrain › Water › Effect on personnel
  • Personnel issues › Psychological › Perception/orientation/illusion › Visual illusion/disorientation › Pilot

Pilot

  • Certificate: commercial pilot
  • Ratings: single-engine land; instructor: helicopter; rotorcraft: helicopter
  • Flight time: 12,050 hours in all; 7,550 in this make and model; 39 in the last 90 days; 19 in the last 30 days; 11,850 as pilot in command; 400 on instruments
  • Last flight review: October 10, 2023
  • Medical certificate: Class 2 (with waivers/limitations)
  • Seat: rgt
  • Injury: no injuries

Passenger

  • Seat: left
  • Injury: no injuries

The aircraft

  • Airframe total time: 50 hours
  • Last inspection: continuous airworthiness programme; 50 hours since
  • Maximum gross weight: 2,500 lb
  • Seats: 4
  • Landing gear: fixed
  • Engine: Lycoming IO-540-AE1A5 (piston); 50 hours total

The flight

  • Departed from: OQU North Kingstown RI at 12:10 pm
  • Flight plan: none

Weather at the time

  • Light: daylight
  • Wind: from 340° at 4 knots
  • Visibility: 10 statute miles
  • Sky: clear
  • Temperature: 61°F (16°C), dew point 30°F (-1°C)
  • Altimeter: 30.03 inHg
  • Observation at 8:53 am from WST, 12 miles away

Weather report (METAR): KWST 091253Z AUTO 34004KT 10SM CLR 16/M01 A3003 RMK AO2 SLP167 T01611011

Injuries

FatalSeriousMinorNone
Flight crew1
Passengers1

Photographs from the investigation 2 pictures from the NTSB's docket, as the NTSB released them

The NTSB's photographs with the NTSB's captions, at screen size. Open a picture to see it full size or to report one that should not be shown.

Documents from the investigation the NTSB's docket: the evidence folder behind the report

2 documents, released by the NTSB on May 29, 2024. View them here, or download them; the NTSB redacts some personal details before release, and this site shows the NTSB's own titles rather than its file names.

#DocumentWhat it is
1 Pilot/operator Aircraft Accident Report, NTSB Form 6120.1 PDF, 11 pages View Download
2 Investigative Photos PDF, 3 pages · our copy View Download

The same docket at the NTSB · documents without a copy here are fetched from the NTSB when you open them.

Everything on this page comes from the NTSB's public records. The narrative, probable cause and findings are the NTSB's own words; the coded tables behind the report are written out in plain English, with pilots' ages, home towns and medical details left out. The documents and photographs are the NTSB's docket, shown as the NTSB released them. This site's own text never names anyone involved. A preliminary report can change; the final report usually follows one to two years later, and the page is refreshed when it does.