# NTSB UNK64X2557: Cessna 210, N9712X, Muskegon, MI, June 29, 1964

- Type: NTSB accident investigation
- Classification: Accident · No injuries · Closed
- Date: June 29, 1964
- Place: Muskegon, MI · MUSKEGON, MI
- Location: 43.2265° N, 86.2572° W: Placed by OpenAirDocs: center of Muskegon, MI, within about 6 miles (OpenAirDocs)
- Nearby events: https://openairdocs.org/map.md?lat=43.2265&lon=-86.2572&mi=10
- Phase of flight: [Landing](https://openairdocs.org/ntsb-phases/550) (OpenAirDocs' grouping)
- Highest injury: No injuries
- Injuries: 2 uninjured
- Status: Completed, report November 6, 1964
- Report: Brief approved by the director
- NTSB case key (mKey): 182957
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=UNK64X2557
- Page: https://openairdocs.org/ntsb/UNK64X2557

## NTSB brief

```
----------------------------------------------------------------------------------------------------------------------------
 FILE    DATE          LOCATION          AIRCRAFT DATA       INJURIES       FLIGHT                        PILOT DATA
                                                               F  S M/N     PURPOSE
----------------------------------------------------------------------------------------------------------------------------
3-1963  64/6/29    MUSKEGON MICH       CESSNA 210          CR-  0  0  1  MISCELLANEOUS             COMMERCIAL, AGE 33, 1800
        TIME - 1125                    N9712X              PX-  0  0  1  DEMONSTRATION             TOTAL HOURS, 150 IN TYPE,
                                       DAMAGE-SUBSTANTIAL  OT-  0  0  0                            INSTRUMENT RATED.
        NAME OF AIRPORT - MUSKEGON COUNTY
        TYPE OF ACCIDENT                                         PHASE OF OPERATION
           WHEELS-UP                                                LANDING: LEVEL OFF/TOUCHDOWN
        PROBABLE CAUSE(S)
          MISC-GEAR PWR PACK SYS SOLENOID VALVE STUCK.
```

## Aircraft

- Registration: [N9712X](https://openairdocs.org/deregistered/N9712X-2013-05-23), registration cancelled 2013-05-23, S/N 21058012, built 1962 (OpenAirDocs)
- Reported make and model: CESSNA 210
- Registry model: [Cessna 210B](https://openairdocs.org/model/cessna-210b) (registry code 2073410) (OpenAirDocs)
- Registry engine: [Continental I0-470 series](https://openairdocs.org/engine/continental-i0-470-series) (registry code 17027, reciprocating) (OpenAirDocs)
- Category: Airplane
- Engines: reciprocating
- Damage: Substantial damage
- Airport: Muskegon County

## Other investigations on N9712X (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 NYC99LA182](https://openairdocs.org/ntsb/NYC99LA182), Jul 23, 1999: Cessna 210 (N9712X), Newton, NJ, substantial damage. Probable cause: The pilot's failure to secure the oil cap after adding oil; the flight instructor's failure to insure the preflight was completed properly; and oil on the windshield obstructing forward vision.
- [NTSB NYC73DFA29](https://openairdocs.org/ntsb/NYC73DFA29), Mar 31, 1973: Cessna 210B (N9712X), Marcy, NY, incident, minor 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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