# NTSB OAK73FVA02: Mooney M20F, N2925L, Prether, CA, July 7, 1972

- Type: NTSB accident investigation
- Classification: Accident · Serious injuries · Closed
- Date: July 7, 1972
- Place: Prether, CA · PRETHER, CA
- Phase of flight: [Enroute](https://openairdocs.org/ntsb-phases/400) (OpenAirDocs' grouping)
- Highest injury: Serious injuries
- Injuries: 2 serious
- Status: Completed, report January 24, 1973
- Report: Brief approved by the director
- NTSB case key (mKey): 166583
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=OAK73FVA02
- Page: https://openairdocs.org/ntsb/OAK73FVA02

## NTSB brief

```
----------------------------------------------------------------------------------------------------------------------------
 FILE    DATE          LOCATION          AIRCRAFT DATA       INJURIES       FLIGHT                        PILOT DATA
                                                               F  S M/N     PURPOSE
----------------------------------------------------------------------------------------------------------------------------
3-1236   72/7/7    PRETHER,CALIF       MOONEY M20F         CR-  0  1  0  NONCOMMERCIAL             PRIVATE, AGE 56, 769
        TIME - 1345                    N2925L              PX-  0  1  0  PLEASURE/PERSONAL TRANSP  TOTAL HOURS, 708 IN TYPE,
                                       DAMAGE-DESTROYED    OT-  0  0  0                            NOT INSTRUMENT RATED.
        NAME OF AIRPORT - EARL WILSON RANCH
        DEPARTURE POINT             INTENDED DESTINATION
          CARSON CITY,NEV             FULLERTON,CALIF
        TYPE OF ACCIDENT                                         PHASE OF OPERATION
           ENGINE FAILURE OR MALFUNCTION                            IN FLIGHT: NORMAL CRUISE
           COLLIDED WITH: TREES                                     LANDING: LEVEL OFF/TOUCHDOWN
        PROBABLE CAUSE(S)
           POWERPLANT - ENGINE STRUCTURE: MASTER AND CONNECTING RODS
           MISCELLANEOUS ACTS,CONDITIONS - LACK OF LUBRICATION-SPECIFIC PART,NOT SYSTEM
           MISCELLANEOUS ACTS,CONDITIONS - MATERIAL FAILURE
           TERRAIN - HIGH OBSTRUCTIONS
        FACTOR(S)
           MISCELLANEOUS ACTS,CONDITIONS - VIBRATION,EXCESSIVE
        COMPLETE POWER LOSS - COMPLETE ENGINE FAILURE/FLAMEOUT-1 ENGINE
        EMERGENCY CIRCUMSTANCES - FORCED LANDING OFF AIRPORT ON LAND
        REMARKS- NR 3 BEARING DOWEL PIN FAILED,OIL PASSAGE BLOCKED.CAUSED NR 3&4 CONROD FAILURES.LND IN WOODS.
```

## Aircraft

- Registration: [N2925L](https://openairdocs.org/deregistered/N2925L-1973-06-26), registration cancelled 1973-06-26, S/N 670319 (OpenAirDocs)
- Reported make and model: MOONEY M20F
- Registry model: [Mooney M20F](https://openairdocs.org/model/mooney-m20f) (registry code 5870214) (OpenAirDocs)
- Category: Airplane
- Engines: reciprocating
- Damage: Destroyed
- Airport: Earl Wilson Ranch

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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