# NTSB OAK76DVD33: Champion 7KCAB, N7589F, Concord, CA, April 13, 1976

- Type: NTSB accident investigation
- Classification: Accident · No injuries · Closed
- Date: April 13, 1976
- Place: Concord, CA · CONCORD, CA
- Location: 37.9722° N, 122.0016° W: Placed by OpenAirDocs: center of Concord, CA, within about 6 miles (OpenAirDocs)
- Nearby events: https://openairdocs.org/map.md?lat=37.9722&lon=-122.0016&mi=10
- Phase of flight: [Landing](https://openairdocs.org/ntsb-phases/550) (OpenAirDocs' grouping)
- Highest injury: No injuries
- Injuries: 1 uninjured
- Status: Completed, report June 8, 1976
- Report: Brief approved by the director
- NTSB case key (mKey): 153488
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=OAK76DVD33
- Page: https://openairdocs.org/ntsb/OAK76DVD33

## NTSB brief

```
----------------------------------------------------------------------------------------------------------------------------
 FILE    DATE          LOCATION          AIRCRAFT DATA       INJURIES       FLIGHT                        PILOT DATA
                                                               F  S M/N     PURPOSE
----------------------------------------------------------------------------------------------------------------------------
3-0909  76/4/13    CONCORD,CA          CHAMPION 7KCAB      CR-  0  0  1  NONCOMMERCIAL             COMMERCIAL, AGE 30, 2900
        TIME - 1030                    N7589F              PX-  0  0  0  PLEASURE/PERSONAL TRANSP  TOTAL HOURS, 86 IN TYPE,
                                       DAMAGE-SUBSTANTIAL  OT-  0  0  0                            INSTRUMENT RATED.
        NAME OF AIRPORT - BUCHANAN
        DEPARTURE POINT             INTENDED DESTINATION
          CONCORD,CA                  TRUCKEE,CA
        TYPE OF ACCIDENT                                         PHASE OF OPERATION
           GROUND-WATER LOOP-SWERVE                                 LANDING: ROLL
           NOSE OVER/DOWN                                           LANDING: ROLL
        PROBABLE CAUSE(S)
           PILOT IN COMMAND - IMPROPER OPERATION OF BRAKES AND/OR FLIGHT CONTROLS
        FACTOR(S)
           PILOT IN COMMAND - INADEQUATE PREFLIGHT PREPARATION AND/OR PLANNING
           POWERPLANT - COOLING SYSTEM: COWLING
           MISCELLANEOUS ACTS,CONDITIONS - IMPROPERLY SECURED
           WEATHER - UNFAVORABLE WIND CONDITIONS
        WEATHER BRIEFING - NO RECORD OF BRIEFING RECEIVED
        WEATHER FORECAST - UNKNOWN/NOT REPORTED
        EMERGENCY CIRCUMSTANCES - PRECAUTIONARY LANDING ON AIRPORT
                                  DOOR/PANEL OPEN
        SKY CONDITION                                            CEILING AT ACCIDENT SITE
          CLEAR                                                    UNLIMITED
        VISIBILITY AT ACCIDENT SITE                              PRECIPITATION AT ACCIDENT SITE
          5 OR OVER(UNLIMITED)                                     NONE
        OBSTRUCTIONS TO VISION AT ACCIDENT SITE                  RELATIVE BEARING OF WIND
          NONE                                                     LEFT CROSS WIND 248-292 DEGREES
        WIND VELOCITY-KNOTS                                      TYPE OF WEATHER CONDITIONS
           12                                                      VFR
        TYPE OF FLIGHT PLAN
          NONE
        REMARKS- RT SIDE COWL CAME OPEN IN FLT.
```

## Aircraft

- Registration: [N7589F](https://openairdocs.org/aircraft/N7589F), registered now, S/N 236-70 (OpenAirDocs)
- Reported make and model: CHAMPION 7KCAB
- Registry model: [Champion 7KCAB](https://openairdocs.org/model/champion-7kcab) (registry code 21101P3) (OpenAirDocs)
- Registry engine: [Lycoming IO-320 series](https://openairdocs.org/engine/lycoming-io-320-series) (registry code 41509, reciprocating) (OpenAirDocs)
- Category: Airplane
- Engines: reciprocating
- Damage: Substantial damage
- Airport: Buchanan

## 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 19760413010699A](https://openairdocs.org/incident/19760413010699A), Apr 13, 1976: Blanca 7KCAB, Concord, CA, Substantial damage. Rt side cowl came open in flt.

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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