# NTSB SEA77FTI21: Cessna 150G, N3752J, Helena, MT, August 8, 1977

- Type: NTSB accident investigation
- Classification: Accident · No injuries · Closed
- Date: August 8, 1977
- Place: Helena, MT · HELENA, MT
- Location: 46.5955° N, 112.0187° W: Placed by OpenAirDocs: center of Helena, MT, within about 6 miles (OpenAirDocs)
- Nearby events: https://openairdocs.org/map.md?lat=46.5955&lon=-112.0187&mi=10
- Phase of flight: [Taxi](https://openairdocs.org/ntsb-phases/250) (OpenAirDocs' grouping)
- Highest injury: No injuries
- Injuries: 1 uninjured
- Status: Completed, report September 29, 1977
- Report: Brief approved by the director
- NTSB case key (mKey): 158696
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=SEA77FTI21
- Page: https://openairdocs.org/ntsb/SEA77FTI21

## NTSB brief

```
----------------------------------------------------------------------------------------------------------------------------
 FILE    DATE          LOCATION          AIRCRAFT DATA       INJURIES       FLIGHT                        PILOT DATA
                                                               F  S M/N     PURPOSE
----------------------------------------------------------------------------------------------------------------------------
3-2778   77/8/8    HELENA,MT           CESSNA 150G         CR-  0  0  1  INSTRUCTIONAL             STUDENT, AGE 29, 12 TOTAL
        TIME - 0845                    N3752J              PX-  0  0  0  SOLO                      HOURS, 11 IN TYPE, NOT
                                       DAMAGE-SUBSTANTIAL  OT-  0  0  0                            INSTRUMENT RATED.
        NAME OF AIRPORT - HELENA
        DEPARTURE POINT             INTENDED DESTINATION
          HELENA,MT                   LOCAL
        TYPE OF ACCIDENT                                         PHASE OF OPERATION
           COLLIDED WITH: PARKED AIRCRAFT                           TAXI: TO TAKEOFF
        PROBABLE CAUSE(S)
           PILOT IN COMMAND - MISJUDGED CLEARANCE
        FACTOR(S)
           AIRPORTS/AIRWAYS/FACILITIES - AIRPORT FACILITIES: TAXIWAY LIGHTING AND MARKING
        REMARKS- FIRST SOLO.PLT USED OLD TAXIWAY MRKGS.SUBSTL DMG TO VERT FIN OF N6062V.
```

## Aircraft

- Registration: [N3752J](https://openairdocs.org/aircraft/N3752J), registered now, S/N 15065052, built 1966 (OpenAirDocs)
- Reported make and model: CESSNA 150G
- Registry model: [Cessna 150G](https://openairdocs.org/model/cessna-150g) (registry code 2071816) (OpenAirDocs)
- Registry engine: [Continental 0-200 series](https://openairdocs.org/engine/continental-0-200-series) (registry code 17020, reciprocating) (OpenAirDocs)
- Category: Airplane
- Engines: reciprocating
- Damage: Substantial damage
- Airport: Helena

## FAA reports on this event (1)

The FAA's own accident and incident reports, matched to the aircraft by N-number and date (OpenAirDocs).

- [Accident 19770808024629A](https://openairdocs.org/incident/19770808024629A), Aug 8, 1977: Cessna 150G, Helena, MT, Substantial damage. First solo. Plt used old taxiway mrkgs. Substl dmg to vert fin of N6062V.

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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