# NTSB OAK74FVG33: Amer Avco AA1, N6254L, Angwin, CA, March 23, 1974

- Type: NTSB accident investigation
- Classification: Accident · Minor injuries · Closed
- Date: March 23, 1974
- Place: Angwin, CA · ANGWIN, CA
- Location: 38.5779° N, 122.4512° W: Placed by OpenAirDocs: center of Angwin, CA, within about 6 miles (OpenAirDocs)
- Nearby events: https://openairdocs.org/map.md?lat=38.5779&lon=-122.4512&mi=10
- Phase of flight: [Enroute](https://openairdocs.org/ntsb-phases/400) (OpenAirDocs' grouping)
- Highest injury: Minor injuries
- Injuries: 2 minor
- Status: Completed, report April 29, 1974
- Report: Brief approved by the director
- NTSB case key (mKey): 186556
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=OAK74FVG33
- Page: https://openairdocs.org/ntsb/OAK74FVG33

## NTSB brief

```
----------------------------------------------------------------------------------------------------------------------------
 FILE    DATE          LOCATION          AIRCRAFT DATA       INJURIES       FLIGHT                        PILOT DATA
                                                               F  S M/N     PURPOSE
----------------------------------------------------------------------------------------------------------------------------
3-0474  74/3/23    ANGWIN,CALIF        AMER AVCO AA1       CR-  0  0  1  NONCOMMERCIAL             COMMERCIAL, FL.INSTR.,
        TIME - 0810                    N6254L              PX-  0  0  1  PLEASURE/PERSONAL TRANSP  AGE 22, 1402 TOTAL HOURS,
                                       DAMAGE-SUBSTANTIAL  OT-  0  0  0                            16 IN TYPE, INSTRUMENT
                                                                                                   RATED.
        NAME OF AIRPORT - ANGWIN
        DEPARTURE POINT             INTENDED DESTINATION
          SAN JOSE,CALIF              POPE VALLEY,CALIF
        TYPE OF ACCIDENT                                         PHASE OF OPERATION
           ENGINE FAILURE OR MALFUNCTION                            IN FLIGHT: NORMAL CRUISE
           COLLIDED WITH: RESIDENCE(S)                              LANDING: FINAL APPROACH
        PROBABLE CAUSE(S)
           PILOT IN COMMAND - IMPROPER OPERATION OF POWERPLANT & POWERPLANT CONTROLS
           MISCELLANEOUS ACTS,CONDITIONS - ANTI-ICING/DEICING EQUIPMENT-IMPROPER OPERATION OF/OR FAILED TO USE
           MISCELLANEOUS ACTS,CONDITIONS - ICE-CARBURETOR
           TERRAIN - HIGH OBSTRUCTIONS
        FACTOR(S)
           WEATHER - CONDITIONS CONDUCIVE TO CARB./INDUCTION SYSTEM ICING
           WEATHER - LOW CEILING
           WEATHER - FOG
        PARTIAL POWER LOSS - PARTIAL LOSS OF POWER - 1 ENGINE
        WEATHER BRIEFING - NO RECORD OF BRIEFING RECEIVED
        WEATHER FORECAST - UNKNOWN/NOT REPORTED
        EMERGENCY CIRCUMSTANCES - FORCED LANDING OFF AIRPORT ON LAND
        SKY CONDITION                                            CEILING AT ACCIDENT SITE
          OVERCAST/LOWER SCATTERED                                  2500
        VISIBILITY AT ACCIDENT SITE                              PRECIPITATION AT ACCIDENT SITE
          1/4 MILE OR LESS                                         NONE
        OBSTRUCTIONS TO VISION AT ACCIDENT SITE                  TEMPERATURE-F
          GROUND FOG                                                38
        TYPE OF WEATHER CONDITIONS                               TYPE OF FLIGHT PLAN
          IFR                                                      NONE
        REMARKS- ACRFT STRUCK HOUSE WHILE MAKING FORCED LNDNG IN NEAR ZERO VIS.
```

## Aircraft

- Registration: [N6254L](https://openairdocs.org/deregistered/N6254L-1975-05-09), registration cancelled 1975-05-09, S/N AA1-0454 (OpenAirDocs)
- Reported make and model: AMER AVCO AA1
- Registry model: [American AA-1](https://openairdocs.org/model/american-aa-1) (registry code 0630610) (OpenAirDocs)
- Category: Airplane
- Engines: reciprocating
- Damage: Substantial damage
- Airport: Angwin

## 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 19740323006459A](https://openairdocs.org/incident/19740323006459A), Mar 23, 1974: Grumav AA1, Angwin, CA, Substantial damage. Acrft struck house while making forced lndng in near zero vis.

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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