# NTSB LAX74AL020: Cessna 172, N7636X, Silverado, CA, September 10, 1973

- Type: NTSB accident investigation
- Classification: Accident · Fatal · Closed
- Date: September 10, 1973
- Place: Silverado, CA · SILVERADO, CA
- Location: 33.7482° N, 117.6285° W: Placed by OpenAirDocs: center of Silverado, CA, within about 6 miles (OpenAirDocs)
- Nearby events: https://openairdocs.org/map.md?lat=33.7482&lon=-117.6285&mi=10
- Phase of flight: [Enroute](https://openairdocs.org/ntsb-phases/400) (OpenAirDocs' grouping)
- Highest injury: Fatal
- Injuries: 3 fatal
- Status: Completed, report November 21, 1973
- Report: Brief approved by the director
- NTSB case key (mKey): 188447
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=LAX74AL020
- Page: https://openairdocs.org/ntsb/LAX74AL020

## NTSB brief

```
----------------------------------------------------------------------------------------------------------------------------
 FILE    DATE          LOCATION          AIRCRAFT DATA       INJURIES       FLIGHT                        PILOT DATA
                                                               F  S M/N     PURPOSE
----------------------------------------------------------------------------------------------------------------------------
3-2989  73/9/10    SILVERADO,CALIF     CESSNA 172          CR-  1  0  0  NONCOMMERCIAL             NO CERTIFICATE, AGE 32,
        TIME - 1500                    N7636X              PX-  2  0  0  PLEASURE/PERSONAL TRANSP  300 TOTAL HOURS, UNK/NR
                                       DAMAGE-DESTROYED    OT-  0  0  0                            IN TYPE, NOT INSTRUMENT
                                                                                                   RATED.
        DEPARTURE POINT             INTENDED DESTINATION
          BLYTHE,CALIF                SANTA ANA,CALIF
        TYPE OF ACCIDENT                                         PHASE OF OPERATION
           COLLISION WITH GROUND/WATER: CONTROLLED                  IN FLIGHT: OTHER
        PROBABLE CAUSE(S)
           PILOT IN COMMAND - ATTEMPTED OPERATION BEYOND EXPERIENCE/ABILITY LEVEL
           PILOT IN COMMAND - CONTINUED VFR FLIGHT INTO ADVERSE WEATHER CONDITIONS
        FACTOR(S)
           PILOT IN COMMAND - INADEQUATE PREFLIGHT PREPARATION AND/OR PLANNING
           PILOT IN COMMAND - PHYSICAL IMPAIRMENT
           MISCELLANEOUS ACTS,CONDITIONS - ALCOHOLIC IMPAIRMENT OF EFFICIENCY AND JUDGMENT
           WEATHER - LOW CEILING
           WEATHER - RAIN
           WEATHER - FOG
           TERRAIN - HIGH OBSTRUCTIONS
        WEATHER BRIEFING - BRIEFED BY FLIGHT SERVICE PERSONNEL, BY PHONE
        WEATHER FORECAST - FORECAST SUBSTANTIALLY CORRECT
        SKY CONDITION                                            CEILING AT ACCIDENT SITE
          OBSCURATION                                              UNKNOWN/NOT REPORTED
        VISIBILITY AT ACCIDENT SITE                              PRECIPITATION AT ACCIDENT SITE
          1/4 MILE OR LESS                                         RAIN
        OBSTRUCTIONS TO VISION AT ACCIDENT SITE                  TYPE OF WEATHER CONDITIONS
          FOG                                                      IFR
        TYPE OF FLIGHT PLAN
          NONE
        REMARKS- OBS SAW ACFT DSCND FROM LOW CLDS IN POOR VIS.PLT BLOOD ALCOHOL LEVEL 0.11 PCT.FSS ADVSD 24HR DELAY
```

## Aircraft

- Registration: [N7636X](https://openairdocs.org/deregistered/N7636X-1973-12-19), registration cancelled 1973-12-19, S/N 17248136 (OpenAirDocs)
- Reported make and model: CESSNA 172
- Registry model: [Cessna 172B](https://openairdocs.org/model/cessna-172b) (registry code 2072406) (OpenAirDocs)
- Category: Airplane
- Engines: reciprocating
- Damage: Destroyed

## 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 19730910035229A](https://openairdocs.org/incident/19730910035229A), Sep 10, 1973: Cessna 172D, Silverado, CA, Destroyed, 2 fatal. OBS saw acft dscnd from low clds in poor vis. Plt blood alcohol level 0.11 pct. Fss advsd 24HR delay

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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