# NTSB LAX79FXQ20: Grum Amer AA1-C, N9924U, S.Lake Tahoe, CA, June 16, 1979

- Type: NTSB accident investigation
- Classification: Accident · Minor injuries · Closed
- Date: June 16, 1979
- Place: S.Lake Tahoe, CA · S.LAKE TAHOE, CA
- Location: 38.9282° N, 119.9810° W: Placed by OpenAirDocs: center of South Lake Tahoe, CA, within about 6 miles (OpenAirDocs)
- Nearby events: https://openairdocs.org/map.md?lat=38.9282&lon=-119.9810&mi=10
- Phase of flight: [Landing](https://openairdocs.org/ntsb-phases/550) (OpenAirDocs' grouping)
- Highest injury: Minor injuries
- Injuries: 2 minor
- Status: Completed, report October 16, 1979
- Report: Brief approved by the director
- NTSB case key (mKey): 135416
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=LAX79FXQ20
- Page: https://openairdocs.org/ntsb/LAX79FXQ20

## NTSB brief

```
----------------------------------------------------------------------------------------------------------------------------
 FILE    DATE          LOCATION          AIRCRAFT DATA       INJURIES       FLIGHT                        PILOT DATA
                                                               F  S M/N     PURPOSE
----------------------------------------------------------------------------------------------------------------------------
3-1999  79/6/16  NR.S.LAKE TAHOE,CA    GRUM AMER AA1-C     CR-  0  0  2  NONCOMMERCIAL             PRIVATE, AGE 43, 352
        TIME - 1540                    N9924U              PX-  0  0  0  PLEASURE/PERSONAL TRANSP  TOTAL HOURS, 71 IN TYPE,
                                       DAMAGE-SUBSTANTIAL  OT-  0  0  0                            NOT INSTRUMENT RATED.
        NAME OF AIRPORT - S.LAKE TAHOE
        DEPARTURE POINT             INTENDED DESTINATION
         S.LAKE TAHOE,CA              LOCAL
        TYPE OF ACCIDENT                                         PHASE OF OPERATION
           HARD LANDING                                             LANDING: LEVEL OFF/TOUCHDOWN
           NOSE OVER/DOWN                                           LANDING: ROLL
        PROBABLE CAUSE(S)
           PILOT IN COMMAND - CONTINUED FLIGHT INTO KNOWN AREAS OF SEVERE TURBULENCE
           WEATHER - DOWNDRAFT,UPDRAFTS
        FACTOR(S)
           WEATHER - HIGH DENSITY ALTITUDE
           TERRAIN - ROUGH/UNEVEN
        WEATHER BRIEFING - NO RECORD OF BRIEFING RECEIVED
        EMERGENCY CIRCUMSTANCES - FORCED LANDING OFF AIRPORT ON LAND
        SKY CONDITION                                            CEILING AT ACCIDENT SITE
          CLEAR                                                    UNLIMITED
        VISIBILITY AT ACCIDENT SITE                              PRECIPITATION AT ACCIDENT SITE
          5 OR OVER(UNLIMITED)                                     NONE
        OBSTRUCTIONS TO VISION AT ACCIDENT SITE                  TEMPERATURE-F
          NONE                                                      59
        WIND DIRECTION-DEGREES                                   WIND VELOCITY-KNOTS
          210                                                       20
        TYPE OF WEATHER CONDITIONS                               TYPE OF FLIGHT PLAN
          VFR                                                      NONE
        REMARKS- WIND GUSTING 35K.
```

## Aircraft

- Registration: [N9924U](https://openairdocs.org/deregistered/N9924U-2013-05-30), registration cancelled 2013-05-30, S/N AA1C0158, built 1978 (OpenAirDocs)
- Reported make and model: GRUM AMER AA1-C
- Registry model: [Grumman American Avn. AA-1C](https://openairdocs.org/model/grumman-american-avn-aa-1c) (registry code 3960100) (OpenAirDocs)
- Registry engine: [Lycoming 0-235 series](https://openairdocs.org/engine/lycoming-0-235-series) (registry code 41505, 4 cycle) (OpenAirDocs)
- Category: Airplane
- Engines: reciprocating
- Damage: Substantial damage
- Airport: S.Lake Tahoe

## 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 19790616023149A](https://openairdocs.org/incident/19790616023149A), Jun 16, 1979: Gulstm AA1C, South Lake Taho, CA, Substantial damage. Departed into area of high mountains and severe turbulence and downdrafts. Landed on a golf course. Flipped over.

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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