# NTSB OAK66D0166: Cessna 210, N3805Y, Tracy, CA, December 17, 1965

- Type: NTSB accident investigation
- Classification: Accident · No injuries · Closed
- Date: December 17, 1965
- Place: Tracy, CA · TRACY, CA
- Location: 37.7274° N, 121.4522° W: Placed by OpenAirDocs: center of Tracy, CA, within about 6 miles (OpenAirDocs)
- Nearby events: https://openairdocs.org/map.md?lat=37.7274&lon=-121.4522&mi=10
- Phase of flight: [Landing](https://openairdocs.org/ntsb-phases/550) (OpenAirDocs' grouping)
- Highest injury: No injuries
- Injuries: 1 uninjured
- Status: Completed, report February 9, 1966
- Report: Brief approved by the director
- NTSB case key (mKey): 174278
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=OAK66D0166
- Page: https://openairdocs.org/ntsb/OAK66D0166

## NTSB brief

```
----------------------------------------------------------------------------------------------------------------------------
 FILE    DATE          LOCATION          AIRCRAFT DATA       INJURIES       FLIGHT                        PILOT DATA
                                                               F  S M/N     PURPOSE
----------------------------------------------------------------------------------------------------------------------------
3-3722  65/12/17   TRACY CALIF         CESSNA 210          CR-  0  0  1  NONCOMMERCIAL             PRIVATE, AGE 40, 3200
        TIME - 1300                    N3805Y              PX-  0  0  0  BUSINESS                  TOTAL HOURS, 500 IN TYPE,
                                       DAMAGE-SUBSTANTIAL  OT-  0  0  0                            NOT INSTRUMENT RATED.
        NAME OF AIRPORT - TRACY
        TYPE OF ACCIDENT                                         PHASE OF OPERATION
           WHEELS-UP                                                LANDING: LEVEL OFF/TOUCHDOWN
        PROBABLE CAUSE(S)
           AIRFRAME - LANDING GEAR: NORMAL RETRACTION/EXTENSION ASSEMBLY
           SYSTEMS - HYDRAULIC SYSTEM: HYDRAULIC PUMPS
           SYSTEMS - HYDRAULIC SYSTEM: SEALS
           MISCELLANEOUS ACTS,CONDITIONS - MATERIAL FAILURE
        REMARKS- HAND PUMP O RING FAILED ON HYDRAULIC POWER PAK
```

## Aircraft

- Registration: [N3805Y](https://openairdocs.org/aircraft/N3805Y), registered now, S/N 21058305, built 1964 (OpenAirDocs)
- Reported make and model: CESSNA 210
- Registry model: [Cessna 210D](https://openairdocs.org/model/cessna-210d) (registry code 2073414) (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: Tracy

## Other investigations on N3805Y (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 OAK70DVG16](https://openairdocs.org/ntsb/OAK70DVG16), May 17, 1970: Cessna 210D (N3805Y), Tulelake, CA, substantial damage
- [NTSB OAK65F0048](https://openairdocs.org/ntsb/OAK65F0048), Apr 19, 1965: Cessna 210 (N3805Y), Tracy, CA, 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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