# NTSB SEA71FDA17: Piper PA-11, N4532M, Alzada, MT, March 11, 1971

- Type: NTSB accident investigation
- Classification: Accident · No injuries · Closed
- Date: March 11, 1971
- Place: Alzada, MT · ALZADA, MT
- Location: 45.0205° N, 104.4128° W: Placed by OpenAirDocs: center of Alzada, MT, within about 6 miles (OpenAirDocs)
- Nearby events: https://openairdocs.org/map.md?lat=45.0205&lon=-104.4128&mi=10
- Phase of flight: [Takeoff](https://openairdocs.org/ntsb-phases/300) (OpenAirDocs' grouping)
- Highest injury: No injuries
- Injuries: 2 uninjured
- Status: Completed, report December 14, 1971
- Report: Brief approved by the director
- NTSB case key (mKey): 160108
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=SEA71FDA17
- Page: https://openairdocs.org/ntsb/SEA71FDA17

## NTSB brief

```
----------------------------------------------------------------------------------------------------------------------------
 FILE    DATE          LOCATION          AIRCRAFT DATA       INJURIES       FLIGHT                        PILOT DATA
                                                               F  S M/N     PURPOSE
----------------------------------------------------------------------------------------------------------------------------
3-0775  71/3/11    ALZADA,MONT         PIPER PA-11         CR-  0  0  1  NONCOMMERCIAL             PRIVATE, AGE 23, 275
        TIME - 1600                    N4532M              PX-  0  0  1  PLEASURE/PERSONAL TRANSP  TOTAL HOURS, 6 IN TYPE,
                                       DAMAGE-SUBSTANTIAL  OT-  0  0  0                            NOT INSTRUMENT RATED.
        DEPARTURE POINT             INTENDED DESTINATION
          NIXON RANCH,MONT            LOCAL
        TYPE OF ACCIDENT                                         PHASE OF OPERATION
           COLLIDED WITH: DITCHES                                   TAKEOFF: RUN
           NOSE OVER/DOWN                                           TAKEOFF: RUN
        PROBABLE CAUSE(S)
           PILOT IN COMMAND - FAILED TO MAINTAIN DIRECTIONAL CONTROL
           TERRAIN - WET,SOFT GROUND
        REMARKS- PLT ATMPTD TKOF ON SOFT,WET RD,HIT DITCH,NOSED OVER.
```

## Aircraft

- Registration: [N4532M](https://openairdocs.org/aircraft/N4532M), registered now, S/N 11-36, built 1947 (OpenAirDocs)
- Reported make and model: PIPER PA-11
- Registry model: [Piper PA-11](https://openairdocs.org/model/piper-pa-11) (registry code 7101102) (OpenAirDocs)
- Registry engine: [Lycoming 0-235 series](https://openairdocs.org/engine/lycoming-0-235-series) (registry code 41505, 4 cycle) (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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