# NTSB OAK72AP022: Cessna 150H, N7231S, Petaluma, CA, January 9, 1972

- Type: NTSB accident investigation
- Classification: Accident · No injuries · Closed
- Date: January 9, 1972
- Place: Petaluma, CA · PETALUMA, CA
- Location: 38.2420° N, 122.6286° W: Placed by OpenAirDocs: center of Petaluma, CA, within about 6 miles (OpenAirDocs)
- Nearby events: https://openairdocs.org/map.md?lat=38.2420&lon=-122.6286&mi=10
- Phase of flight: [Landing](https://openairdocs.org/ntsb-phases/550) (OpenAirDocs' grouping)
- Highest injury: No injuries
- Injuries: 3 uninjured
- Status: Completed, report February 16, 1973
- Report: Brief approved by the director
- NTSB case key (mKey): 165490
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=OAK72AP022
- Page: https://openairdocs.org/ntsb/OAK72AP022

## NTSB brief (aircraft 2)

```
----------------------------------------------------------------------------------------------------------------------------
 FILE    DATE          LOCATION          AIRCRAFT DATA       INJURIES       FLIGHT                        PILOT DATA
                                                               F  S M/N     PURPOSE
----------------------------------------------------------------------------------------------------------------------------
3-2063   72/1/9    PETALUMA,CALIF      CESSNA 150F         CR-  0  0  1  NONCOMMERCIAL             COMMERCIAL, FL.INSTR.,
        TIME - 0950                    N8169S              PX-  0  0  0  BUSINESS                  AGE 56, 2034 TOTAL HOURS,
                                       DAMAGE-SUBSTANTIAL  OT-  0  0  2                            715 IN TYPE, INSTRUMENT
                                                                                                   RATED.
        NAME OF AIRPORT - PETALUMA SKY RNCH
        DEPARTURE POINT             INTENDED DESTINATION
          SONOMA VALLEY,CALIF         PETALUMA,CALIF
        TYPE OF ACCIDENT                                         PHASE OF OPERATION
           COLLISION WITH AIRCRAFT: BOTH IN FLIGHT                  LANDING: LEVEL OFF/TOUCHDOWN
        PROBABLE CAUSE(S)
           PERSONNEL - MISCELLANEOUS-PERSONNEL: PILOT OF OTHER AIRCRAFT
         SPECIAL DATA
          SEGMENTS OF AVIATION INVOLVED - SMALL US GEN.AV.-SMALL US GEN.AV.
          CONTROLLING AGENCY - NO CONTROL                          TRAFFIC ADVISORY ISSUED - NONE
          CONTROLLED/UNCONTROLLED AIRPORT - UNCONTROLLED AIRPORT   CONTROL ZONE/AREA - NO
          CONVERGENCE ANGLE-DEGREES -  0                           HORIZONTAL COLLISION ANGLE-DEGREES -   0
          VERTICAL COLLISION ANGLE-DEGREES -  1                    EVASIVE ACTION TAKEN - NO
```

## NTSB brief (aircraft 1)

```
----------------------------------------------------------------------------------------------------------------------------
 FILE    DATE          LOCATION          AIRCRAFT DATA       INJURIES       FLIGHT                        PILOT DATA
                                                               F  S M/N     PURPOSE
----------------------------------------------------------------------------------------------------------------------------
3-2063   72/1/9    PETALUMA,CALIF      CESSNA 150H         CR-  0  0  2  INSTRUCTIONAL             COMMERCIAL, FL.INSTR.,
        TIME - 0950                    N7231S              PX-  0  0  0  DUAL                      AGE 35, 3500 TOTAL HOURS,
                                       DAMAGE-NONE         OT-  0  0  1                            80 IN TYPE, INSTRUMENT
                                                                                                   RATED.
        NAME OF AIRPORT - PETALUMA SKY RNCH
        DEPARTURE POINT             INTENDED DESTINATION
          NAPA COUNTY ARPT            PETALUMA,CALIF
        TYPE OF ACCIDENT                                         PHASE OF OPERATION
           COLLISION WITH AIRCRAFT: BOTH IN FLIGHT                  LANDING: LEVEL OFF/TOUCHDOWN
        PROBABLE CAUSE(S)
           PILOT IN COMMAND - FAILED TO SEE AND AVOID OTHER AIRCRAFT
           DUAL STUDENT - FAILED TO SEE AND AVOID OTHER AIRCRAFT
        FACTOR(S)
           PILOT IN COMMAND - INADEQUATE SUPERVISION OF FLIGHT
         SPECIAL DATA
          SEGMENTS OF AVIATION INVOLVED - SMALL US GEN.AV.-SMALL US GEN.AV.
          CONTROLLING AGENCY - NO CONTROL                          TRAFFIC ADVISORY ISSUED - NONE
          CONTROLLED/UNCONTROLLED AIRPORT - UNCONTROLLED AIRPORT   CONTROL ZONE/AREA - NO
          CONVERGENCE ANGLE-DEGREES -  0                           HORIZONTAL COLLISION ANGLE-DEGREES -   0
          VERTICAL COLLISION ANGLE-DEGREES -  1                    EVASIVE ACTION TAKEN - NO
```

## Aircraft 1

- Registration: [N7231S](https://openairdocs.org/deregistered/N7231S-2018-01-08), registration cancelled 2018-01-08, S/N 15067931, built 1967 (OpenAirDocs)
- Reported make and model: CESSNA 150H
- Registry model: [Cessna 150H](https://openairdocs.org/model/cessna-150h) (registry code 2071818) (OpenAirDocs)
- Registry engine: [Continental 0-200 series](https://openairdocs.org/engine/continental-0-200-series) (registry code 17020, reciprocating) (OpenAirDocs)
- Category: Airplane
- Engines: reciprocating
- Damage: No damage
- Airport: Petaluma Sky Rnch

## Aircraft 2

- Registration: [N8169S](https://openairdocs.org/deregistered/N8169S-2013-02-20), registration cancelled 2013-02-20, S/N 15061769, built 1966 (OpenAirDocs)
- Reported make and model: CESSNA 150F
- Registry model: [Cessna 150F](https://openairdocs.org/model/cessna-150f) (registry code 2071814) (OpenAirDocs)
- Registry engine: [Continental 0-200 series](https://openairdocs.org/engine/continental-0-200-series) (registry code 17020, reciprocating) (OpenAirDocs)
- Category: Airplane
- Engines: reciprocating
- Damage: Substantial damage
- Airport: Petaluma Sky Rnch

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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