# NTSB CHI73AC070: Beech B35, N5209C, Sheboygan, WI, February 17, 1973

- Type: NTSB accident investigation
- Classification: Accident · Fatal · Closed
- Date: February 17, 1973
- Place: Sheboygan, WI · SHEBOYGAN, WI
- Location: 43.7387° N, 87.7315° W: Placed by OpenAirDocs: center of Sheboygan, WI, within about 6 miles (OpenAirDocs)
- Nearby events: https://openairdocs.org/map.md?lat=43.7387&lon=-87.7315&mi=10
- Phase of flight: [Enroute](https://openairdocs.org/ntsb-phases/400) (OpenAirDocs' grouping)
- Highest injury: Fatal
- Injuries: 2 fatal, 2 serious
- Status: Completed, report April 4, 1973
- Report: Brief approved by the director
- NTSB case key (mKey): 170103
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=CHI73AC070
- Page: https://openairdocs.org/ntsb/CHI73AC070

## NTSB brief

```
----------------------------------------------------------------------------------------------------------------------------
 FILE    DATE          LOCATION          AIRCRAFT DATA       INJURIES       FLIGHT                        PILOT DATA
                                                               F  S M/N     PURPOSE
----------------------------------------------------------------------------------------------------------------------------
3-0134  73/2/17    SHEBOYGAN,WIS       BEECH B35           CR-  1  0  0  NONCOMMERCIAL             PRIVATE, AGE 34, 80 TOTAL
        TIME - 1645                    N5209C              PX-  1  2  0  PLEASURE/PERSONAL TRANSP  HOURS, 21 IN TYPE, NOT
                                       DAMAGE-DESTROYED    OT-  0  0  0                            INSTRUMENT RATED.
        DEPARTURE POINT             INTENDED DESTINATION
          ZIONSVILLE,IND              MANITOWOC,WIS.
        TYPE OF ACCIDENT                                         PHASE OF OPERATION
           ENGINE FAILURE OR MALFUNCTION                            IN FLIGHT: NORMAL CRUISE
           STALL                                                    LANDING: OTHER
        PROBABLE CAUSE(S)
           POWERPLANT - ENGINE STRUCTURE: VALVE ASSEMBLIES
           MISCELLANEOUS ACTS,CONDITIONS - MATERIAL FAILURE
           PILOT IN COMMAND - FAILED TO OBTAIN/MAINTAIN FLYING SPEED
        FACTOR(S)
           TERRAIN - HIGH OBSTRUCTIONS
        PARTIAL POWER LOSS - PARTIAL LOSS OF POWER - 1 ENGINE
        EMERGENCY CIRCUMSTANCES - FORCED LANDING OFF AIRPORT ON LAND
        REMARKS- NR 1 CYL EXH VALVE.
```

## Aircraft

- Registration: [N5209C](https://openairdocs.org/deregistered/N5209C-1974-03-08), registration cancelled 1974-03-08, S/N D2554 (OpenAirDocs)
- Reported make and model: BEECH B35
- Registry model: [Beech B35](https://openairdocs.org/model/beech-b35) (registry code 1151506) (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 19730217003499A](https://openairdocs.org/incident/19730217003499A), Feb 17, 1973: Beech B35, Sheboygan, WI, Destroyed, 1 fatal. Nr 1 cyl exh valve.

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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