# NTSB OAK70D0123: Mooney M20G, N6815N, Livermore, CA, September 7, 1969

- Type: NTSB accident investigation
- Classification: Accident · No injuries · Closed
- Date: September 7, 1969
- Place: Livermore, CA · LIVERMORE, CA
- Location: 37.6870° N, 121.7598° W: Placed by OpenAirDocs: center of Livermore, CA, within about 6 miles (OpenAirDocs)
- Nearby events: https://openairdocs.org/map.md?lat=37.6870&lon=-121.7598&mi=10
- Phase of flight: [Landing](https://openairdocs.org/ntsb-phases/550) (OpenAirDocs' grouping)
- Highest injury: No injuries
- Injuries: 2 uninjured
- Status: Completed, report December 18, 1969
- Report: Brief approved by the director
- NTSB case key (mKey): 158438
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=OAK70D0123
- Page: https://openairdocs.org/ntsb/OAK70D0123

## NTSB brief

```
----------------------------------------------------------------------------------------------------------------------------
 FILE    DATE          LOCATION          AIRCRAFT DATA       INJURIES       FLIGHT                        PILOT DATA
                                                               F  S M/N     PURPOSE
----------------------------------------------------------------------------------------------------------------------------
3-2650   69/9/7    LIVERMORE,CALIF     MOONEY M20G         CR-  0  0  1  NONCOMMERCIAL             PRIVATE, AGE 40, 487
        TIME - 1625                    N6815N              PX-  0  0  1  PLEASURE/PERSONAL TRANSP  TOTAL HOURS, 203 IN TYPE,
                                       DAMAGE-SUBSTANTIAL  OT-  0  0  0                            INSTRUMENT RATED.
        NAME OF AIRPORT - LIVERMORE
        DEPARTURE POINT             INTENDED DESTINATION
          CONCORD,CALIF               LIVERMORE,CALIF
        TYPE OF ACCIDENT                                         PHASE OF OPERATION
           WHEELS-UP                                                LANDING: LEVEL OFF/TOUCHDOWN
        PROBABLE CAUSE(S)
           PILOT IN COMMAND - FAILED TO EXTEND LANDING GEAR
           PILOT IN COMMAND - DIVERTED ATTENTION FROM OPERATION OF AIRCRAFT
           PERSONNEL - MAINTENANCE,SERVICING,INSPECTION: INADEQUATE MAINTENANCE AND INSPECTION
           AIRFRAME - LANDING GEAR: LANDING GEAR WARNING AND INDICATING COMPONENTS
        REMARKS- PLT STARTED GO-AROUND DUE TRAFFIC.TRAFFIC CLEARED RWY.LANDED W/O RE-EXTENDING GR.GR WARN HORN INOP
```

## Aircraft

- Registration: [N6815N](https://openairdocs.org/deregistered/N6815N-1976-01-08), registration cancelled 1976-01-08, S/N 680105 (OpenAirDocs)
- Reported make and model: MOONEY M20G
- Registry model: [Mooney M-20G](https://openairdocs.org/model/mooney-m-20g) (registry code 5870216) (OpenAirDocs)
- Category: Airplane
- Engines: reciprocating
- Damage: Substantial damage
- Airport: Livermore

## Other investigations on N6815N (1)

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.

- [NTSB OAK76AP008](https://openairdocs.org/ntsb/OAK76AP008), Sep 4, 1975: Mooney M20G (N6815N), Truckee, CA, destroyed, 3 fatal

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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