# NTSB DEN81DTI02: Robinson R-22, N9036N, Havre, MT, January 22, 1981

- Type: NTSB accident investigation
- Classification: Accident · Serious injuries · Closed
- Date: January 22, 1981
- Place: Havre, MT · HAVRE, MT
- Location: 48.5419° N, 109.6780° W: Placed by OpenAirDocs: center of Havre, MT, within about 6 miles (OpenAirDocs)
- Nearby events: https://openairdocs.org/map.md?lat=48.5419&lon=-109.6780&mi=10
- Phase of flight: [Landing](https://openairdocs.org/ntsb-phases/550) (OpenAirDocs' grouping)
- Highest injury: Serious injuries
- Injuries: 2 serious
- Status: Completed, report March 16, 1981
- Report: Brief approved by the director
- NTSB case key (mKey): 127249
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=DEN81DTI02
- Page: https://openairdocs.org/ntsb/DEN81DTI02

## NTSB brief

```
----------------------------------------------------------------------------------------------------------------------------
 FILE    DATE          LOCATION          AIRCRAFT DATA       INJURIES       FLIGHT                        PILOT DATA
                                                               F  S M/N     PURPOSE
----------------------------------------------------------------------------------------------------------------------------
3-0122  81/1/22    HAVRE,MT            ROBINSON R-22       CR-  0  1  0  NONCOMMERCIAL             AIRLINE TRANSPORT, AGE
        TIME - 1530                    N9036N              PX-  0  1  0  PLEASURE/PERSONAL TRANSP  26, 7674 TOTAL HOURS, 6
                                       DAMAGE-DESTROYED    OT-  0  0  0                            IN TYPE, INSTRUMENT
                                                                                                   RATED.
        NAME OF AIRPORT - HAVRE CITY-COUNTY
        DEPARTURE POINT             INTENDED DESTINATION
          HAVRE,MT                    LOCAL
        TYPE OF ACCIDENT                                         PHASE OF OPERATION
           HARD LANDING                                             LANDING: POWER-OFF AUTOROTATIVE LANDING
        PROBABLE CAUSE(S)
           PILOT IN COMMAND - IMPROPER OPERATION OF POWERPLANT & POWERPLANT CONTROLS
           PILOT IN COMMAND - FAILED TO MAINTAIN ADEQUATE ROTOR R.P.M.
        REMARKS- PRACTICE AUTOROTATION.
```

## Aircraft

- Registration: [N9036N](https://openairdocs.org/aircraft/N9036N), registered now, S/N 0089, built 1981 (OpenAirDocs)
- Reported make and model: ROBINSON R-22
- Registry model: [Robinson Helicopter R22](https://openairdocs.org/model/robinson-helicopter-r22) (registry code 7640102) (OpenAirDocs)
- Registry engine: [Lycoming 0-320 series](https://openairdocs.org/engine/lycoming-0-320-series) (registry code 41508, reciprocating) (OpenAirDocs)
- Category: Helicopter
- Engines: reciprocating
- Damage: Destroyed
- Airport: Havre City-County

From the NTSB's public API. Aircraft are matched to registry aircraft by N-number and event date, checked against the reported serial number, make and model; the registry's history has gaps, so older matches can be wrong. Compare the reported make and model.

---
OpenAirDocs.org is an independent research project of [Contrail Labs](https://contraillabs.com/). It is not affiliated with the FAA or the NTSB. Source documents are U.S. government works in the public domain.