# NTSB UNK65X0578: Beechcraft D18S, N1181, Mariposa, CA, November 6, 1964

- Type: NTSB accident investigation
- Classification: Accident · No injuries · Closed
- Date: November 6, 1964
- Place: Mariposa, CA · MARIPOSA, CA
- Location: 37.4912° N, 119.9732° W: Placed by OpenAirDocs: center of Mariposa, CA, within about 6 miles (OpenAirDocs)
- Nearby events: https://openairdocs.org/map.md?lat=37.4912&lon=-119.9732&mi=10
- Phase of flight: [Landing](https://openairdocs.org/ntsb-phases/550) (OpenAirDocs' grouping)
- Highest injury: No injuries
- Injuries: 1 uninjured
- Status: Completed, report December 17, 1964
- Report: Brief approved by the director
- NTSB case key (mKey): 181012
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=UNK65X0578
- Page: https://openairdocs.org/ntsb/UNK65X0578

## NTSB brief

```
----------------------------------------------------------------------------------------------------------------------------
 FILE    DATE          LOCATION          AIRCRAFT DATA       INJURIES       FLIGHT                        PILOT DATA
                                                               F  S M/N     PURPOSE
----------------------------------------------------------------------------------------------------------------------------
3-3412   64/11/6   MARIPOSA CALIF      BEECHCRAFT D18S     CR-  0  0  1  NONCOMMERCIAL             COMMERCIAL, AGE 53, 10000
        TIME - 1537                    N1181               PX-  0  0  0  BUSINESS                  TOTAL HOURS, 3000 IN
                                       DAMAGE-SUBSTANTIAL  OT-  0  0  0                            TYPE, INSTRUMENT RATED.
        NAME OF AIRPORT - MARIPOSA
        TYPE OF ACCIDENT                                         PHASE OF OPERATION
           OVERSHOOT                                                LANDING: ROLL
           GEAR COLLAPSED                                           LANDING: ROLL
        PROBABLE CAUSE(S)
           PILOT IN COMMAND - MISJUDGED DISTANCE AND SPEED
        FACTOR(S)
           MISCELLANEOUS ACTS,CONDITIONS - OVERLOAD FAILURE
```

## Aircraft

- Registration: [N1181](https://openairdocs.org/deregistered/N1181-2009-09-18), registration cancelled 2009-09-18, S/N 4176, built 1942 (OpenAirDocs)
- Reported make and model: BEECHCRAFT D18S
- Registry model: [Beech C18S](https://openairdocs.org/model/beech-c18s) (registry code 1150902) (OpenAirDocs)
- Registry engine: [Pratt & Whitney R-985 series](https://openairdocs.org/engine/pratt-whitney-r-985-series) (registry code 52008, reciprocating) (OpenAirDocs)
- Category: Airplane
- Engines: reciprocating
- Damage: Substantial damage
- Airport: Mariposa

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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