# NTSB OAK70F0014: Mooney M20F, N6731N, Tonopah, NV, May 29, 1969

- Type: NTSB accident investigation
- Classification: Accident · No injuries · Closed
- Date: May 29, 1969
- Place: Tonopah, NV · TONOPAH, NV
- Location: 38.0822° N, 117.2246° W: Placed by OpenAirDocs: center of Tonopah, NV, within about 6 miles (OpenAirDocs)
- Nearby events: https://openairdocs.org/map.md?lat=38.0822&lon=-117.2246&mi=10
- Phase of flight: [Enroute](https://openairdocs.org/ntsb-phases/400) (OpenAirDocs' grouping)
- Highest injury: No injuries
- Injuries: 3 uninjured
- Status: Completed, report July 31, 1969
- Report: Brief approved by the director
- NTSB case key (mKey): 180006
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=OAK70F0014
- Page: https://openairdocs.org/ntsb/OAK70F0014

## NTSB brief

```
----------------------------------------------------------------------------------------------------------------------------
 FILE    DATE          LOCATION          AIRCRAFT DATA       INJURIES       FLIGHT                        PILOT DATA
                                                               F  S M/N     PURPOSE
----------------------------------------------------------------------------------------------------------------------------
3-1704  69/5/29    TONOPAH,NEV         MOONEY M20F         CR-  0  0  1  NONCOMMERCIAL             COMMERCIAL, AGE 50, 800
        TIME - 1703                    N6731N              PX-  0  0  2  BUSINESS                  TOTAL HOURS, 150 IN TYPE,
                                       DAMAGE-SUBSTANTIAL  OT-  0  0  0                            NOT INSTRUMENT RATED.
        TYPE OF ACCIDENT                                         PHASE OF OPERATION
           ENGINE FAILURE OR MALFUNCTION                            IN FLIGHT: NORMAL CRUISE
           COLLIDED WITH: AUTOMOBILE                                LANDING: ROLL
        PROBABLE CAUSE(S)
           POWERPLANT - LUBRICATING SYSTEM: LINES,HOSES,FITTING
           MISCELLANEOUS ACTS,CONDITIONS - MATERIAL FAILURE
           MISCELLANEOUS ACTS,CONDITIONS - PRESSURE TOO LOW
           MISCELLANEOUS ACTS,CONDITIONS - OIL STARVATION
           TERRAIN - OTHER
        PARTIAL POWER LOSS - PARTIAL LOSS OF POWER - 1 ENGINE
        EMERGENCY CIRCUMSTANCES - FORCED LANDING OFF AIRPORT ON LAND
        REMARKS- NIPPLE USED TO CONNECT LOWER HOSE ASSY TO FILTER IN TURBOCHARGER FAILED.HWY ONLY LEVEL LDG AREA.
```

## Aircraft

- Registration: [N6731N](https://openairdocs.org/aircraft/N6731N), registered now, S/N 680182 (OpenAirDocs)
- Reported make and model: MOONEY M20F
- Registry model: [Mooney M20F](https://openairdocs.org/model/mooney-m20f) (registry code 5870214) (OpenAirDocs)
- Registry engine: [Lycoming I0360 series](https://openairdocs.org/engine/lycoming-i0360-series) (registry code 41515, 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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