# NTSB DEN71DTM32: Navion A, N4022K, Boulder, UT, June 26, 1971

- Type: NTSB accident investigation
- Classification: Accident · Minor injuries · Closed
- Date: June 26, 1971
- Place: Boulder, UT · BOULDER, UT
- Location: 37.9228° N, 111.4319° W: Placed by OpenAirDocs: center of Boulder, UT, within about 6 miles (OpenAirDocs)
- Nearby events: https://openairdocs.org/map.md?lat=37.9228&lon=-111.4319&mi=10
- Phase of flight: [Approach](https://openairdocs.org/ntsb-phases/500) (OpenAirDocs' grouping)
- Highest injury: Minor injuries
- Injuries: 2 minor
- Status: Completed, report March 9, 1972
- Report: Brief approved by the director
- NTSB case key (mKey): 162308
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=DEN71DTM32
- Page: https://openairdocs.org/ntsb/DEN71DTM32

## NTSB brief

```
----------------------------------------------------------------------------------------------------------------------------
 FILE    DATE          LOCATION          AIRCRAFT DATA       INJURIES       FLIGHT                        PILOT DATA
                                                               F  S M/N     PURPOSE
----------------------------------------------------------------------------------------------------------------------------
3-2604  71/6/26    BOULDER,UT          NAVION A            CR-  0  0  1  NONCOMMERCIAL             PRIVATE, AGE 62, 1204
        TIME - 1200                    N4022K              PX-  0  0  1  PLEASURE/PERSONAL TRANSP  TOTAL HOURS, 144 IN TYPE,
                                       DAMAGE-SUBSTANTIAL  OT-  0  0  0                            NOT INSTRUMENT RATED.
        DEPARTURE POINT             INTENDED DESTINATION
          LAS VEGAS,NEV               GRAND JUNCTION,COLO
        TYPE OF ACCIDENT                                         PHASE OF OPERATION
           STALL                                                    LANDING: GO-AROUND
        PROBABLE CAUSE(S)
           PILOT IN COMMAND - FAILED TO OBTAIN/MAINTAIN FLYING SPEED
        FACTOR(S)
           PILOT IN COMMAND - BECAME LOST/DISORIENTED
           TERRAIN - HIGH OBSTRUCTIONS
           MISCELLANEOUS - EVASIVE MANEUVER TO AVOID COLLISION
        EMERGENCY CIRCUMSTANCES - PRECAUTIONARY LANDING OFF AIRPORT
        REMARKS- LNDG ON ROAD SAW WINDROW OF ROAD MIX,ABORTED.PULLED UP SHARPLY TO CLEAR PWR LINES,STALLED.
```

## Aircraft

- Registration: [N4022K](https://openairdocs.org/deregistered/N4022K-1972-06-08), registration cancelled 1972-06-08, S/N NAV-4-1022 (OpenAirDocs)
- Reported make and model: NAVION A
- Registry model: [North American NAVION A](https://openairdocs.org/model/north-american-navion-a) (registry code 6150132) (OpenAirDocs)
- Category: Airplane
- Engines: reciprocating
- Damage: Substantial damage

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.

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