# NTSB LAX80DVG54: Mooney M20C, N5665Q, Grass Valley, CA, July 11, 1980

- Type: NTSB accident investigation
- Classification: Accident · No injuries · Closed
- Date: July 11, 1980
- Place: Grass Valley, CA · GRASS VALLEY, CA
- Location: 39.2203° N, 121.0527° W: Placed by OpenAirDocs: center of Grass Valley, CA, within about 6 miles (OpenAirDocs)
- Nearby events: https://openairdocs.org/map.md?lat=39.2203&lon=-121.0527&mi=10
- Phase of flight: [Landing](https://openairdocs.org/ntsb-phases/550) (OpenAirDocs' grouping)
- Highest injury: No injuries
- Injuries: 2 uninjured
- Status: Completed, report August 20, 1980
- Report: Brief approved by the director
- NTSB case key (mKey): 129947
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=LAX80DVG54
- Page: https://openairdocs.org/ntsb/LAX80DVG54

## NTSB brief

```
----------------------------------------------------------------------------------------------------------------------------
 FILE    DATE          LOCATION          AIRCRAFT DATA       INJURIES       FLIGHT                        PILOT DATA
                                                               F  S M/N     PURPOSE
----------------------------------------------------------------------------------------------------------------------------
3-1649  80/7/11    GRASS VALLEY,CA     MOONEY M20C         CR-  0  0  1  NONCOMMERCIAL             PRIVATE, AGE 33, 306
        TIME - 1030                    N5665Q              PX-  0  0  1  PLEASURE/PERSONAL TRANSP  TOTAL HOURS, 69 IN TYPE,
                                       DAMAGE-SUBSTANTIAL  OT-  0  0  0                            NOT INSTRUMENT RATED.
        NAME OF AIRPORT - NEVADA COUNTY
        DEPARTURE POINT             INTENDED DESTINATION
          AUBURN,CA                   GRASS VALLEY,CA
        TYPE OF ACCIDENT                                         PHASE OF OPERATION
           OVERSHOOT                                                LANDING: LEVEL OFF/TOUCHDOWN
           COLLIDED WITH: DITCHES                                   LANDING: ROLL
        PROBABLE CAUSE(S)
           PILOT IN COMMAND - MISJUDGED DISTANCE AND SPEED
        FACTOR(S)
           AIRFRAME - LANDING GEAR: BRAKING SYSTEM (NORMAL SYSTEM)
           MISCELLANEOUS ACTS,CONDITIONS - EXCESSIVE-WEAR/PLAY
           MISCELLANEOUS ACTS,CONDITIONS - RAN OFF END OF RUNWAY
        REMARKS- BRAKE SHOES WORN.
```

## Aircraft

- Registration: [N5665Q](https://openairdocs.org/deregistered/N5665Q-2017-06-23), registration cancelled 2017-06-23, S/N 3031, built 1965 (OpenAirDocs)
- Reported make and model: MOONEY M20C
- Registry model: [Mooney M20C](https://openairdocs.org/model/mooney-m20c) (registry code 5870208) (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
- Airport: Nevada County

## FAA reports on this event (1)

The FAA's own accident and incident reports, matched to the aircraft by N-number and date (OpenAirDocs).

- [Accident 19800711024669A](https://openairdocs.org/incident/19800711024669A), Jul 11, 1980: Mooney M20C, Grass Valley, CA, Substantial damage. Brakes failed during landing foll. Pilot steered aircft off runway, but hit a ditch.

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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