# NTSB DEN70D0042: Cessna 150G, N3817J, Longmont, CO, July 24, 1969

- Type: NTSB accident investigation
- Classification: Accident · No injuries · Closed
- Date: July 24, 1969
- Place: Longmont, CO · LONGMONT, CO
- Location: 40.1682° N, 105.1005° W: Placed by OpenAirDocs: center of Longmont, CO, within about 6 miles (OpenAirDocs)
- Nearby events: https://openairdocs.org/map.md?lat=40.1682&lon=-105.1005&mi=10
- Phase of flight: [Takeoff](https://openairdocs.org/ntsb-phases/300) (OpenAirDocs' grouping)
- Highest injury: No injuries
- Injuries: 1 uninjured
- Status: Completed, report September 16, 1969
- Report: Brief approved by the director
- NTSB case key (mKey): 169702
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=DEN70D0042
- Page: https://openairdocs.org/ntsb/DEN70D0042

## NTSB brief

```
----------------------------------------------------------------------------------------------------------------------------
 FILE    DATE          LOCATION          AIRCRAFT DATA       INJURIES       FLIGHT                        PILOT DATA
                                                               F  S M/N     PURPOSE
----------------------------------------------------------------------------------------------------------------------------
3-2313  69/7/24    LONGMONT,COLO       CESSNA 150G         CR-  0  0  1  INSTRUCTIONAL             STUDENT, AGE 28, 15 TOTAL
        TIME - 1915                    N3817J              PX-  0  0  0  TRAINING                  HOURS, ALL IN TYPE, NOT
                                       DAMAGE-SUBSTANTIAL  OT-  0  0  0                            INSTRUMENT RATED.
        NAME OF AIRPORT - LONGMONT
        TYPE OF ACCIDENT                                         PHASE OF OPERATION
           GROUND-WATER LOOP-SWERVE                                 TAKEOFF: RUN
           COLLIDED WITH: DITCHES                                   TAKEOFF: RUN
        PROBABLE CAUSE(S)
           PILOT IN COMMAND - FAILED TO MAINTAIN DIRECTIONAL CONTROL
```

## Aircraft

- Registration: [N3817J](https://openairdocs.org/deregistered/N3817J-2018-01-04), registration cancelled 2018-01-04, S/N 15065117 (OpenAirDocs)
- Reported make and model: CESSNA 150G
- Registry model: [Cessna 150G](https://openairdocs.org/model/cessna-150g) (registry code 2071816) (OpenAirDocs)
- Registry engine: [Lycoming O-360 series](https://openairdocs.org/engine/lycoming-o-360-series) (registry code 41575, reciprocating) (OpenAirDocs)
- Category: Airplane
- Engines: reciprocating
- Damage: Substantial damage
- Airport: Longmont

## Other investigations on N3817J (1)

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.

- [NTSB DEN67D0167](https://openairdocs.org/ntsb/DEN67D0167), Nov 30, 1966: Cessna 150 (N3817J), Logmont, CO, 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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