# NTSB SEA71DTI31: Piper PA-18, N3695A, Gallatin Gwy, MT, May 23, 1971

- Type: NTSB accident investigation
- Classification: Accident · No injuries · Closed
- Date: May 23, 1971
- Place: Gallatin Gwy, MT · GALLATIN GWY, MT
- Phase of flight: [Takeoff](https://openairdocs.org/ntsb-phases/300) (OpenAirDocs' grouping)
- Highest injury: No injuries
- Injuries: 1 uninjured
- Status: Completed, report January 14, 1972
- Report: Brief approved by the director
- NTSB case key (mKey): 161481
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=SEA71DTI31
- Page: https://openairdocs.org/ntsb/SEA71DTI31

## NTSB brief

```
----------------------------------------------------------------------------------------------------------------------------
 FILE    DATE          LOCATION          AIRCRAFT DATA       INJURIES       FLIGHT                        PILOT DATA
                                                               F  S M/N     PURPOSE
----------------------------------------------------------------------------------------------------------------------------
3-1686  71/5/23    GALLATIN GWY MONT   PIPER PA-18         CR-  0  0  1  NONCOMMERCIAL             AIRLINE TRANSPORT, AGE
        TIME - 1630                    N3695A              PX-  0  0  0  BUSINESS                  34, 6200 TOTAL HOURS,
                                       DAMAGE-SUBSTANTIAL  OT-  0  0  0                            2490 IN TYPE, INSTRUMENT
                                                                                                   RATED.
        DEPARTURE POINT             INTENDED DESTINATION
          GALLATIN GWY MONT           LOCAL
        TYPE OF ACCIDENT                                         PHASE OF OPERATION
           GROUND-WATER LOOP-SWERVE                                 TAKEOFF: RUN
           COLLIDED WITH: WIRES/POLES                               TAKEOFF: RUN
        PROBABLE CAUSE(S)
           PILOT IN COMMAND - FAILED TO MAINTAIN DIRECTIONAL CONTROL
        FACTOR(S)
           WEATHER - UNFAVORABLE WIND CONDITIONS
           TERRAIN - OTHER
        WEATHER BRIEFING - NO RECORD OF BRIEFING RECEIVED
        WEATHER FORECAST - FORECAST SUBSTANTIALLY CORRECT
        SKY CONDITION                                            CEILING AT ACCIDENT SITE
          CLEAR                                                    UNLIMITED
        VISIBILITY AT ACCIDENT SITE                              PRECIPITATION AT ACCIDENT SITE
          5 OR OVER(UNLIMITED)                                     NONE
        OBSTRUCTIONS TO VISION AT ACCIDENT SITE                  WIND DIRECTION-DEGREES
          NONE                                                     270
        WIND VELOCITY-KNOTS                                      TYPE OF WEATHER CONDITIONS
           15                                                      VFR
        TYPE OF FLIGHT PLAN
          NONE
        REMARKS- TKOF FROM MUDDY ROAD.WIND GUSTING 20K
```

## Aircraft

- Registration: [N3695A](https://openairdocs.org/aircraft/N3695A), registered now, S/N 18-3044, built 1954 (OpenAirDocs)
- Reported make and model: PIPER PA-18
- Registry model: [Piper PA-18-135](https://openairdocs.org/model/piper-pa-18-135) (registry code 7101820) (OpenAirDocs)
- Registry engine: [Lycoming 0-320 series](https://openairdocs.org/engine/lycoming-0-320-series) (registry code 41508, reciprocating) (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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