# NTSB OAK72AP012: Cessna 150, N4687X, Franklin, CA, October 25, 1971

- Type: NTSB accident investigation
- Classification: Accident · Minor injuries · Closed
- Date: October 25, 1971
- Place: Franklin, CA · FRANKLIN, CA
- Phase of flight: [Initial climb](https://openairdocs.org/ntsb-phases/350) (OpenAirDocs' grouping)
- Highest injury: Minor injuries
- Injuries: 2 minor, 1 uninjured
- Status: Completed, report April 14, 1972
- Report: Brief approved by the director
- NTSB case key (mKey): 163389
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=OAK72AP012
- Page: https://openairdocs.org/ntsb/OAK72AP012

## NTSB brief (aircraft 2)

```
----------------------------------------------------------------------------------------------------------------------------
 FILE    DATE          LOCATION          AIRCRAFT DATA       INJURIES       FLIGHT                        PILOT DATA
                                                               F  S M/N     PURPOSE
----------------------------------------------------------------------------------------------------------------------------
3-3313  71/10/25   FRANKLIN,CALIF      CESSNA 172          CR-  0  0  2  INSTRUCTIONAL             ATP,FLIGHT INSTR., AGE
        TIME - 0830                    N8187L              PX-  0  0  0  DUAL                      51, 7000 TOTAL HOURS, 100
                                       DAMAGE-DESTROYED    OT-  0  0  1                            IN TYPE, INSTRUMENT
                                                                                                   RATED.
        NAME OF AIRPORT - FRANKLIN
        DEPARTURE POINT             INTENDED DESTINATION
          FRANKLIN,CALIF              LOCAL
        TYPE OF ACCIDENT                                         PHASE OF OPERATION
           COLLISION WITH AIRCRAFT: BOTH IN FLIGHT                  LANDING: FINAL APPROACH
        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 - FAILED TO FOLLOW APPROVED PROCEDURES,DIRECTIVES,ETC.
         SPECIAL DATA
          SEGMENTS OF AVIATION INVOLVED - SMALL US GEN.AV.-SMALL US GEN.AV.
          CONTROLLING AGENCY - NO CONTROL                          RADAR CTL/SURVEILLANCE - RADAR SERVICE NOT AVAILABLE
          TRAFFIC ADVISORY ISSUED - NONE                           CONTROLLED/UNCONTROLLED AIRPORT - UNCONTROLLED AIRPORT
          CONTROL ZONE/AREA - NO                                   EVASIVE ACTION TAKEN - YES
          ANTI-COLLISION LIGHTS - INSTALLED,OPERATION UNKNOWN
        REMARKS- C-172 ENTERED PATTERN ON BASE LEG FOR RWY 36. COLLIDED OVER END OF RWY 36 AT MIDDLE OF RWY 27.
```

## NTSB brief (aircraft 1)

```
----------------------------------------------------------------------------------------------------------------------------
 FILE    DATE          LOCATION          AIRCRAFT DATA       INJURIES       FLIGHT                        PILOT DATA
                                                               F  S M/N     PURPOSE
----------------------------------------------------------------------------------------------------------------------------
3-3313  71/10/25   FRANKLIN,CALIF      CESSNA 150          CR-  0  0  1  INSTRUCTIONAL             STUDENT, AGE 41, 13 TOTAL
        TIME - 0830                    N4687X              PX-  0  0  0  TRAINING                  HOURS, ALL IN TYPE, NOT
                                       DAMAGE-SUBSTANTIAL  OT-  0  0  2                            INSTRUMENT RATED.
        NAME OF AIRPORT - FRANKLIN
        DEPARTURE POINT             INTENDED DESTINATION
          SACRAMENTO,CALIF            LOCAL
        TYPE OF ACCIDENT                                         PHASE OF OPERATION
           COLLISION WITH AIRCRAFT: BOTH IN FLIGHT                  TAKEOFF: INITIAL CLIMB
        PROBABLE CAUSE(S)
           PERSONNEL - MISCELLANEOUS-PERSONNEL: PILOT OF OTHER AIRCRAFT
        FACTOR(S)
           MISCELLANEOUS ACTS,CONDITIONS - TOUCH AND GO LANDING
         SPECIAL DATA
          SEGMENTS OF AVIATION INVOLVED - SMALL US GEN.AV.-SMALL US GEN.AV.
          CONTROLLING AGENCY - NO CONTROL                          RADAR CTL/SURVEILLANCE - RADAR SERVICE NOT AVAILABLE
          TRAFFIC ADVISORY ISSUED - NONE                           CONTROLLED/UNCONTROLLED AIRPORT - UNCONTROLLED AIRPORT
          CONTROL ZONE/AREA - NO                                   EVASIVE ACTION TAKEN - YES
          ANTI-COLLISION LIGHTS - INSTALLED,OPERATION UNKNOWN
        REMARKS- C-150 TOOK OFF ON RWY 27. OBS STATED WIND ABOUT 290 DEG,5-10 MPH. UNCONTROLLED ARPT,NO UNICOM.
```

## Aircraft 1

- Registration: [N4687X](https://openairdocs.org/deregistered/N4687X-1994-06-27), registration cancelled 1994-06-27, S/N 15064737 (OpenAirDocs)
- Reported make and model: CESSNA 150
- Registry model: [Cessna 150G](https://openairdocs.org/model/cessna-150g) (registry code 2071816) (OpenAirDocs)
- Category: Airplane
- Engines: reciprocating
- Damage: Substantial damage
- Airport: Franklin

## Aircraft 2

- Registration: [N8187L](https://openairdocs.org/deregistered/N8187L-1979-04-11), registration cancelled 1979-04-11, S/N 17256387 (OpenAirDocs)
- Reported make and model: CESSNA 172
- Registry model: [Cessna 172H](https://openairdocs.org/model/cessna-172h) (registry code 2072424) (OpenAirDocs)
- Category: Airplane
- Engines: reciprocating
- Damage: Destroyed
- Airport: Franklin

## Other investigations on N4687X (1)

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.

- [NTSB LAX91LA023](https://openairdocs.org/ntsb/LAX91LA023), Nov 3, 1990: Cessna 150G (N4687X), Columbia, CA, substantial damage. Probable cause: POOR PLANNING WHICH RESULTED IN FUEL EXHAUSTION.

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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