Robinson Helicopter R44 accident near Pontiac, Michigan, May 31, 2023
On May 31, 2023 at about 5:00 pm local time, a 2013 Robinson Helicopter R44, registered N7102Z, was substantially damaged in an accident during maneuvering (hover) near Pontiac, Michigan (Oakland County Intl airport). It was an instructional 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 flight crew’s inadequate compensation for gusting wind, and the flight instructor’s delayed remedial action, which resulted in impact with the ground.
Source: NTSB aviation accident database, copy made October 5, 2026. Docket and reports at the NTSB.
What the record shows
- Date
- May 31, 2023 · about 5:00 pm local time
- Place
- Pontiac, Michigan · Oakland County Intl · map
- Type
- Accident
- Injuries
- No one was hurt; 2 people were on board or involved.
- Weather
- visual conditions (good weather)
- Aircraft
- Robinson Helicopter R44, built 2013 · all R44s on the register
- Registration
- N7102Z · registry record · serial 2309
- Damage
- Substantial damage
- Flight
- Instructional flight · general aviation rules (Part 91)
The NTSB's narrative final · quoted from the NTSB record
A flight instructor and a private pilot receiving instruction were performing a hovering maneuver as part of a flight lesson. During an exchange of the flight controls, a gust of wind moved the helicopter backward. The flight instructor reassumed control of the helicopter, but the tail rotor assembly struck the ground and separated from the helicopter. He then performed a hovering autorotation, the helicopter landed upright on its skids and the occupants egressed the helicopter without injury. The ground strike resulted in substantial damage to the tailboom assembly. The flight instructor reported that there were no preaccident mechanical failures or malfunctions with the helicopter that would have precluded normal operation.
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
- Low altitude operation/event during maneuvering (hover)
- Other weather encounter during maneuvering (hover)
- Loss of control in flight during maneuvering (hover) defining event
The NTSB's findings
- Personnel issues › Task performance › Use of equip/info › Aircraft control › Instructor/check pilot
- Aircraft › Aircraft oper/perf/capability › Performance/control parameters › (general) › Not attained/maintained
- Environmental issues › Conditions/weather/phenomena › Wind › Gusts › Response/compensation
Flight instructor
- Certificate: flight instructor, commercial pilot, remote
- Ratings: instructor: helicopter; instructor: instrument helicopter; instrument: helicopter; rotorcraft: helicopter; rotorcraft: unmanned (suas)
- Flight time: 9,165 hours in all; 6,675 in this make and model
- Last flight review: May 18, 2021
- Medical certificate: Class 2 (with waivers/limitations)
- Seat: left
- Injury: no injuries
Dual student
- Certificate: private
- Ratings: rotorcraft: helicopter
- Flight time: 235 hours in all; 235 in this make and model
- Last flight review: May 31, 2022
- Medical certificate: Class 3 (without waivers/limitations)
- Seat: rgt
- Injury: no injuries
The aircraft
- Airframe total time: 146.2 hours
- Last inspection: annual inspection, February 10, 2023; 42.5 hours since
- Maximum gross weight: 2,400 lb
- Seats: 4
- Landing gear: fixed
- Engine: Lycoming O-540-F1B5 (piston); 350 hours total
- Operator: Michigan Helicopters LLC
The flight
- Departed from: PTK Waterford MI at 3:00 pm
- Flight plan: none
- Runway 9R/2, 6,521 ft by 150 ft
- A second pilot was aboard
Weather at the time
- Light: daylight
- Wind: from 170° at 6 knots, gusting 16
- Visibility: 10 statute miles
- Sky: a few clouds at 7,000 ft
- Temperature: 84°F (29°C), dew point 52°F (11°C)
- Altimeter: 30.12 inHg
- Observation at 1:53 pm from KPTK
Weather report (METAR): KPTK 311753Z 17006G16KT 10SM FEW070 29/11 A3012 RMK SLPNO
Injuries
| Fatal | Serious | Minor | None | |
|---|---|---|---|---|
| Flight crew | 2 |
Documents from the investigation the NTSB's docket: the evidence folder behind the report
2 documents, released by the NTSB on September 28, 2023. 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.
| # | Document | What it is | |
|---|---|---|---|
| 1 | Pilot/operator Aircraft Accident Report, NTSB Form 6120.1 | PDF, 11 pages | View Download |
| 2 | Photos | PDF, 2 pages | 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.