# NTSB MKC68A0052: Cessna P206A, N4653F, Fort Madison, IA, February 12, 1968

- Type: NTSB accident investigation
- Classification: Accident · Serious injuries · Closed
- Date: February 12, 1968
- Place: Fort Madison, IA · FORT MADISON, IA
- Location: 40.6215° N, 91.3463° W: Placed by OpenAirDocs: center of Fort Madison, IA, within about 6 miles (OpenAirDocs)
- Nearby events: https://openairdocs.org/map.md?lat=40.6215&lon=-91.3463&mi=10
- Phase of flight: [Initial climb](https://openairdocs.org/ntsb-phases/350) (OpenAirDocs' grouping)
- Highest injury: Serious injuries
- Injuries: 3 serious, 1 uninjured
- Status: Completed, report December 9, 1968
- Report: Brief approved by the director
- Safety recommendations: Yes
- NTSB case key (mKey): 79588
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=MKC68A0052
- Page: https://openairdocs.org/ntsb/MKC68A0052

## NTSB brief

```
----------------------------------------------------------------------------------------------------------------------------
 FILE    DATE          LOCATION          AIRCRAFT DATA       INJURIES       FLIGHT                        PILOT DATA
                                                               F  S M/N     PURPOSE
----------------------------------------------------------------------------------------------------------------------------
3-3447  68/2/12    FORT MADISON,IOWA   CESSNA P206A        CR-  0  1  0  COMMERCIAL                COMMERCIAL, FL.INSTR.,
        TIME - 1215                    N4653F              PX-  0  2  1  AIR TAXI-PASSG            AGE 46, 4560 TOTAL HOURS,
                                       DAMAGE-SUBSTANTIAL  OT-  0  0  0                            548 IN TYPE, INSTRUMENT
                                                                                                   RATED.
        NAME OF AIRPORT - FT.MADISON MUNI
        TYPE OF ACCIDENT                                         PHASE OF OPERATION
           PROPELLER/ROTOR FAILURE: PROPELLER                       TAKEOFF: INITIAL CLIMB
           NOSE OVER/DOWN                                           LANDING: OTHER
        PROBABLE CAUSE(S)
           POWERPLANT - PROPELLER AND ACCESSORIES: HUBS
           MISCELLANEOUS ACTS,CONDITIONS - FATIGUE FRACTURE
           PERSONNEL - PRODUCTION-DESIGN-PERSONNEL: POOR/INADEQUATE DESIGN
           PERSONNEL - PRODUCTION-DESIGN-PERSONNEL: INCORRECT FACTORY INSTALLATION
        FACTOR(S)
           MISCELLANEOUS ACTS,CONDITIONS - SEPARATION IN FLIGHT
           TERRAIN - ROUGH/UNEVEN
        EMERGENCY CIRCUMSTANCES - FORCED LANDING OFF AIRPORT ON LAND
                                  SUSPECTED OR KNOWN AIRCRAFT DAMAGE
                                  PROP/ENGINE VIBRATION
        REMARKS- PROP HUB MCCAULEY MODEL D3A-32C-77 FAILED. PROP BLADE S/N C 405 13 YS SEPARATED.OIL COVRD WINDSHLD
```

## Aircraft

- Registration: [N4653F](https://openairdocs.org/deregistered/N4653F-2020-05-23), registration cancelled 2020-05-23, S/N P206-0253, built 1966 (OpenAirDocs)
- Reported make and model: CESSNA P206A
- Registry model: [Cessna P206A](https://openairdocs.org/model/cessna-p206a) (registry code 2073308) (OpenAirDocs)
- Registry engine: [Continental IO-520 series](https://openairdocs.org/engine/continental-io-520-series) (registry code 17032, reciprocating) (OpenAirDocs)
- Category: Airplane
- Engines: reciprocating
- Damage: Substantial damage
- Airport: Ft.Madison Muni

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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