Robinson R-22B accident near Minneapolis, Minnesota, January 25, 1992
On January 25, 1992 at about 7:00 pm local time, a Robinson R-22B (helicopter), registered N4046H, was substantially damaged in an accident near Minneapolis, Minnesota (Anoka County airport). It was an instructional flight under general aviation rules (Part 91). No one was hurt; 1 person was on board or involved. The weather was visual conditions (good weather).
The NTSB's probable cause their words, unchanged
A MISJUDGED AUTOROTATION.
Source: NTSB aviation accident database, copy made October 5, 2026. Docket and reports at the NTSB.
What the record shows
- Date
- January 25, 1992 · about 7:00 pm local time
- Place
- Minneapolis, Minnesota · Anoka County · map
- Type
- Accident
- Injuries
- No one was hurt; 1 person was on board or involved.
- Weather
- visual conditions (good weather)
- Aircraft
- Robinson R-22B · all R-22Bs on the register
- Registration
- N4046H · no longer on the register · serial 1651
- Damage
- Substantial damage
- Flight
- Instructional flight · general aviation rules (Part 91)
The NTSB's narrative final · quoted from the NTSB record
THE PILOT WAS PRACTICING RUN ON LANDINGS AND SIMULATED FORCED LANDINGS WITH AN AUTOROTATION AND A POWER RECOVERY. DURING ONE SUCH APPROACH HE SAID HE MISJUDGED HIS ALTITUDE AND FLIGHT PATH, AND STRUCK A SNOW BANK WITH THE TAIL ROTOR, CAUSING SUBSTANTIAL DAMAGE.
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
Pilot
- Certificate: commercial pilot
- Ratings: multi-engine land; single-engine land; single-engine sea; instrument: airplane; instrument: helicopter; rotorcraft: helicopter
- Flight time: 2,439 hours in all; 230 in this make and model; 2,238 as pilot in command
- Medical certificate: Class 2 (valid medical--w/ waivers/lim.)
- Seat: rgt
The aircraft
- Last inspection: annual inspection, November 27, 1991; 796 hours since
- Maximum gross weight: 1,370 lb
- Seats: 2
- Landing gear: fixed
- Engine: Lycoming O-320-B2C (piston); 0 hours total
The flight
- Flight plan: none
- Runway 0
Weather at the time
- Light: daylight
- Wind: from 360° at 8 knots
- Visibility: 10 statute miles
- Sky: not recorded; not recorded
- Temperature: 25°F (-4°C), dew point 0°F (-18°C)
Injuries
| Fatal | Serious | Minor | None | |
|---|---|---|---|---|
| Crew | 1 |
Documents from the investigation the NTSB's docket: the evidence folder behind the report
The docket, the folder of records gathered during an investigation (maintenance records, photographs, witness statements, examinations), has not been read from the NTSB for this case yet; the list appears here once it has. Open the docket at the NTSB.
Other NTSB records under N4046H the same tail number, which may have belonged to a different aircraft at the time
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.