# NTSB SEA66D0078: Cessna 180, N7630A, Twin Bridges, MT, June 29, 1965

- Type: NTSB accident investigation
- Classification: Accident · No injuries · Closed
- Date: June 29, 1965
- Place: Twin Bridges, MT · TWIN BRIDGES, MT
- Location: 45.5429° N, 112.3341° W: Placed by OpenAirDocs: center of Twin Bridges, MT, within about 6 miles (OpenAirDocs)
- Nearby events: https://openairdocs.org/map.md?lat=45.5429&lon=-112.3341&mi=10
- Phase of flight: [Landing](https://openairdocs.org/ntsb-phases/550) (OpenAirDocs' grouping)
- Highest injury: No injuries
- Injuries: 1 uninjured
- Status: Completed, report October 15, 1965
- Report: Brief approved by the director
- NTSB case key (mKey): 176673
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=SEA66D0078
- Page: https://openairdocs.org/ntsb/SEA66D0078

## NTSB brief

```
----------------------------------------------------------------------------------------------------------------------------
 FILE    DATE          LOCATION          AIRCRAFT DATA       INJURIES       FLIGHT                        PILOT DATA
                                                               F  S M/N     PURPOSE
----------------------------------------------------------------------------------------------------------------------------
3-2513  65/6/29    TWIN BRIDGES MONT   CESSNA 180          CR-  0  0  1  NONCOMMERCIAL             COMMERCIAL, AGE 22, 1800
        TIME - 1430                    N7630A              PX-  0  0  0  BUSINESS                  TOTAL HOURS, 400 IN TYPE,
                                       DAMAGE-SUBSTANTIAL  OT-  0  0  0                            NOT INSTRUMENT RATED.
        NAME OF AIRPORT - TWIN BRIDGES
        TYPE OF ACCIDENT                                         PHASE OF OPERATION
           GROUND-WATER LOOP-SWERVE                                 LANDING: ROLL
           NOSE OVER/DOWN                                           LANDING: ROLL
        PROBABLE CAUSE(S)
           PILOT IN COMMAND - IMPROPER COMPENSATION FOR WIND CONDITIONS
        FACTOR(S)
           WEATHER - UNFAVORABLE WIND CONDITIONS
        SKY CONDITION                                            CEILING AT ACCIDENT SITE
          CLEAR                                                    UNLIMITED
        VISIBILITY AT ACCIDENT SITE                              OBSTRUCTIONS TO VISION AT ACCIDENT SITE
          5 OR OVER(UNLIMITED)                                     NONE
        TEMPERATURE-F                                            WIND DIRECTION-DEGREES
           75                                                      135
        WIND VELOCITY-KNOTS                                      TYPE OF WEATHER CONDITIONS
           20                                                      VFR
        TYPE OF FLIGHT PLAN
          NONE
        REMARKS- WIND GUSTING TO 20 KNOTS
```

## Aircraft

- Registration: [N7630A](https://openairdocs.org/deregistered/N7630A-1975-05-08), registration cancelled 1975-05-08, S/N 32527 (OpenAirDocs)
- Reported make and model: CESSNA 180
- Registry model: [Cessna 180](https://openairdocs.org/model/cessna-180) (registry code 2072602) (OpenAirDocs)
- Category: Airplane
- Engines: reciprocating
- Damage: Substantial damage
- Airport: Twin Bridges

## Other investigations on N7630A (2)

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 LAX74DUQ43](https://openairdocs.org/ntsb/LAX74DUQ43), May 27, 1974: Cessna 180 (N7630A), Ventucopa, CA, substantial damage
- [NTSB SEA66D0104](https://openairdocs.org/ntsb/SEA66D0104), Aug 22, 1965: Cessna 180 (N7630A), Livingston, MT, 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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