# NTSB LAX69F0017: Mooney M21, N6743U, Yorba Linda, CA, June 28, 1968

- Type: NTSB accident investigation
- Classification: Accident · No injuries · Closed
- Date: June 28, 1968
- Place: Yorba Linda, CA · YORBA LINDA, CA
- Location: 33.8890° N, 117.7721° W: Placed by OpenAirDocs: center of Yorba Linda, CA, within about 6 miles (OpenAirDocs)
- Nearby events: https://openairdocs.org/map.md?lat=33.8890&lon=-117.7721&mi=10
- Phase of flight: [Enroute](https://openairdocs.org/ntsb-phases/400) (OpenAirDocs' grouping)
- Highest injury: No injuries
- Injuries: 5 uninjured
- Status: Completed, report July 18, 1968
- Report: Brief approved by the director
- NTSB case key (mKey): 115020
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=LAX69F0017
- Page: https://openairdocs.org/ntsb/LAX69F0017

## NTSB brief

```
----------------------------------------------------------------------------------------------------------------------------
 FILE    DATE          LOCATION          AIRCRAFT DATA       INJURIES       FLIGHT                        PILOT DATA
                                                               F  S M/N     PURPOSE
----------------------------------------------------------------------------------------------------------------------------
3-1669  68/6/28    YORBA LINDA,CALIF   MOONEY M21          CR-  0  0  1  NONCOMMERCIAL             PRIVATE, AGE 35, 66 TOTAL
        TIME - 1215                    N6743U              PX-  0  0  4  PLEASURE/PERSONAL TRANSP  HOURS, 15 IN TYPE, NOT
                                       DAMAGE-SUBSTANTIAL  OT-  0  0  0                            INSTRUMENT RATED.
        TYPE OF ACCIDENT                                         PHASE OF OPERATION
           ENGINE FAILURE OR MALFUNCTION                            IN FLIGHT: NORMAL CRUISE
           GEAR COLLAPSED                                           LANDING: ROLL
        PROBABLE CAUSE(S)
           PILOT IN COMMAND - INADEQUATE PREFLIGHT PREPARATION AND/OR PLANNING
           MISCELLANEOUS ACTS,CONDITIONS - INATTENTIVE TO FUEL SUPPLY
           MISCELLANEOUS ACTS,CONDITIONS - FUEL EXHAUSTION
        FACTOR(S)
           POWERPLANT - POWERPLANT-INSTRUMENTS: FUEL QUANTITY GAUGE
           MISCELLANEOUS ACTS,CONDITIONS - ERRATIC
           MISCELLANEOUS ACTS,CONDITIONS - OVERLOAD FAILURE
        COMPLETE POWER LOSS - COMPLETE ENGINE FAILURE/FLAMEOUT-1 ENGINE
        EMERGENCY CIRCUMSTANCES - FORCED LANDING OFF AIRPORT ON LAND
```

## Aircraft

- Registration: [N6743U](https://openairdocs.org/deregistered/N6743U-2014-11-21), registration cancelled 2014-11-21, S/N 169, built 1963 (OpenAirDocs)
- Reported make and model: MOONEY M21
- Registry model: [Mooney M20D](https://openairdocs.org/model/mooney-m20d) (registry code 5870210) (OpenAirDocs)
- Registry engine: [Lycoming O&VO-360 series](https://openairdocs.org/engine/lycoming-o-vo-360-series) (registry code 41514, 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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