# NTSB OAK71AP048: Champion 7KCAB, N5136X, Antioch, CA, May 28, 1971

- Type: NTSB accident investigation
- Classification: Accident · Fatal · Closed
- Date: May 28, 1971
- Place: Antioch, CA · ANTIOCH, CA
- Location: 37.9784° N, 121.7983° W: Placed by OpenAirDocs: center of Antioch, CA, within about 6 miles (OpenAirDocs)
- Nearby events: https://openairdocs.org/map.md?lat=37.9784&lon=-121.7983&mi=10
- Phase of flight: [Maneuvering](https://openairdocs.org/ntsb-phases/450) (OpenAirDocs' grouping)
- Highest injury: Fatal
- Injuries: 2 fatal
- Status: Completed, report December 6, 1971
- Report: Brief approved by the director
- NTSB case key (mKey): 161064
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=OAK71AP048
- Page: https://openairdocs.org/ntsb/OAK71AP048

## NTSB brief

```
----------------------------------------------------------------------------------------------------------------------------
 FILE    DATE          LOCATION          AIRCRAFT DATA       INJURIES       FLIGHT                        PILOT DATA
                                                               F  S M/N     PURPOSE
----------------------------------------------------------------------------------------------------------------------------
3-0951  71/5/28    ANTIOCH,CALIF       CHAMPION 7KCAB      CR-  2  0  0  NONCOMMERCIAL             COMMERCIAL, AGE 30, 1138
        TIME - 1700                    N5136X              PX-  0  0  0  PRACTICE                  TOTAL HOURS, 8 IN TYPE,
                                       DAMAGE-DESTROYED    OT-  0  0  0                            NOT INSTRUMENT RATED.
        NAME OF AIRPORT - ANTIOCH
        DEPARTURE POINT             INTENDED DESTINATION
          ANTIOCH,CALIF               LOCAL
        TYPE OF ACCIDENT                                         PHASE OF OPERATION
           COLLISION WITH GROUND/WATER: CONTROLLED                  IN FLIGHT: ACROBATICS
        PROBABLE CAUSE(S)
           PILOT IN COMMAND - INADEQUATE SUPERVISION OF FLIGHT
           COPILOT - MISJUDGED ALTITUDE
        REMARKS- WITNESSES THINK C/P,STDNT RATING,PERFORMING MNVRS.RCVRD FRM SPIN TOO LOW TO AVOID RISING TERRAIN.
```

## Aircraft

- Registration: [N5136X](https://openairdocs.org/deregistered/N5136X-1973-06-25), registration cancelled 1973-06-25, S/N 173 (OpenAirDocs)
- Reported make and model: CHAMPION 7KCAB
- Registry model: [Champion 7KCAB](https://openairdocs.org/model/champion-7kcab) (registry code 21101P3) (OpenAirDocs)
- Category: Airplane
- Engines: reciprocating
- Damage: Destroyed
- Airport: Antioch

## Other investigations on N5136X (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 OAK73AP001](https://openairdocs.org/ntsb/OAK73AP001), Jul 8, 1972: Champion 7KCAB (N5136X), San Ramon, CA, destroyed, 2 fatal

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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