# NTSB MKC76AK013: Cessna 207, N1568U, Topeka, KS, August 10, 1975

- Type: NTSB accident investigation
- Classification: Accident · No injuries · Closed
- Date: August 10, 1975
- Place: Topeka, KS · TOPEKA, KS
- Location: 39.0483° N, 95.6780° W: Placed by OpenAirDocs: center of Topeka, KS, within about 6 miles (OpenAirDocs)
- Nearby events: https://openairdocs.org/map.md?lat=39.0483&lon=-95.6780&mi=10
- Phase of flight: [Enroute](https://openairdocs.org/ntsb-phases/400) (OpenAirDocs' grouping)
- Highest injury: No injuries
- Injuries: 7 uninjured
- Status: Completed, report January 21, 1976
- Report: Brief approved by the director
- NTSB case key (mKey): 150442
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=MKC76AK013
- Page: https://openairdocs.org/ntsb/MKC76AK013

## NTSB brief

```
----------------------------------------------------------------------------------------------------------------------------
 FILE    DATE          LOCATION          AIRCRAFT DATA       INJURIES       FLIGHT                        PILOT DATA
                                                               F  S M/N     PURPOSE
----------------------------------------------------------------------------------------------------------------------------
3-3981  75/8/10    TOPEKA,KS           CESSNA 207          CR-  0  0  1  COMMERCIAL                COMMERCIAL, AGE 22, 2400
        TIME - 1708                    N1568U              PX-  0  0  6  COMMUTER AIR CARRIER      TOTAL HOURS, 1100 IN
                                       DAMAGE-SUBSTANTIAL  OT-  0  0  0  AIR TAXI-PASSG S-D        TYPE, INSTRUMENT RATED.
        NAME OF AIRPORT - PHILIP BILLARD
        DEPARTURE POINT             INTENDED DESTINATION
          SALINA,KS                   KANSAS CITY,MO
        TYPE OF ACCIDENT                                         PHASE OF OPERATION
           PROPELLER/ROTOR FAILURE: PROPELLER                       IN FLIGHT: NORMAL CRUISE
        PROBABLE CAUSE(S)
           PERSONNEL - OPERATIONAL SUPERVISORY PERSONNEL: DEFICIENCY,COMPANY MAINTAINED EQPMT,SERVICES,REGULATION
           PERSONNEL - MAINTENANCE,SERVICING,INSPECTION: IMPROPER MAINTENANCE (MAINTENANCE PERSONNEL)
           POWERPLANT - ENGINE STRUCTURE: CRANKSHAFT
           POWERPLANT - PROPELLER AND ACCESSORIES: HUBS
           MISCELLANEOUS ACTS,CONDITIONS - FATIGUE FRACTURE
        FACTOR(S)
           MISCELLANEOUS ACTS,CONDITIONS - SEPARATION IN FLIGHT
        EMERGENCY CIRCUMSTANCES - FORCED LANDING ON AIRPORT/SEAPLANE BASE/HELIPT.
                                  PROP/ENGINE VIBRATION
                                  SUSPECTED MECHANICAL DISCREPANCY
        REMARKS- PROP HUB FAILURE MODE FATIGUE,HI STRESS OR VIBRATION ORIGIN.COUNTER WGT AND BUSHING WEAR EXCESSIVE
```

## Aircraft

- Registration: [N1568U](https://openairdocs.org/deregistered/N1568U-2013-09-25), registration cancelled 2013-09-25, S/N 20700168, built 1970 (OpenAirDocs)
- Reported make and model: CESSNA 207
- Registry model: [Cessna 207](https://openairdocs.org/model/cessna-207) (registry code 2073602) (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: Philip Billard

## 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 19750810039579A](https://openairdocs.org/incident/19750810039579A), Aug 10, 1975: Cessna 207, Topeka, KS, Substantial damage. Prop hub failure mode fatigue,hi stress or vibration origin. Counter wgt and bushing wear excessive

## Other investigations on N1568U (2)

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 FTW90LA123](https://openairdocs.org/ntsb/FTW90LA123), Jun 24, 1990: Cessna 207 (N1568U), Mc Allen, TX, substantial damage. Probable cause: LOSS OF ENGINE POWER FOR UNDETERMINED REASONS. THE CONCRETE CANAL THAT HE IMPACTED WAS A FACTOR.
- [NTSB MKC80FA031](https://openairdocs.org/ntsb/MKC80FA031), Apr 18, 1980: Cessna 207 (N1568U), Mclouth, KS, substantial damage

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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