# N606CD: 1959 Hiller OH-23D

- Status: Valid registration
- Airframe: [Hiller OH-23D](https://openairdocs.org/model/hiller-oh-23d) (registry code 4360123, 4 seats)
- Engine: [NONE](https://openairdocs.org/engine/none) (registry code 00000)
- Data sheets: [TCDS 4H10](https://openairdocs.org/tcds/4H10) (Siam Hiller Holdings Inc.) (OpenAirDocs)
- Serial number: 59-2760
- Year built: 1959
- Type: Rotorcraft
- Engine type: Reciprocating
- Certificate issued: September 9, 1998
- Expires: April 30, 2028
- Mode S code: A7DDBF
- Registered owner: [Fort Wolters Helicopter Inc](https://openairdocs.org/faa-owner/FORT%20WOLTERS%20HELICOPTER%20INC)
- Location: [Mineral Wells, TX](https://openairdocs.org/faa-place/TX/Mineral%20Wells)
- Owner type: Corporation
- Owner's area on the map: 32.8024° N, 98.1425° W: Placed by OpenAirDocs at the center of ZIP code 76067, within about 8 miles (OpenAirDocs). The owner's mailing address, not where the aircraft is based
- FAA registry: https://registry.faa.gov/AircraftInquiry/Search/NNumberResult?nNumberTxt=606CD
- Page: https://openairdocs.org/aircraft/N606CD

From the FAA registry file of October 24, 2026. ADs below are matched by the registry's airframe and engine model codes. They may apply; each AD's applicability can narrow it by serial number, part number or installed equipment. This is not a compliance determination.

## ADs that may apply (OpenAirDocs): 0 in force

### Matched by airframe (Hiller OH-23D)

None in force.

### Matched by engine (NONE)

None in force.

## Information bulletins (advisory)

None matched.

## NTSB investigations

None matched to N606CD.

## FAA accident and incident reports

None matched to N606CD.

## Service difficulty reports

None filed for this aircraft. Matched to this aircraft by N-number and event date, checked against the reported serial number, make and model.

## STCs that may be installed (OpenAirDocs)

None matched to this aircraft's models.

## Related

- Other Hiller OH-23D aircraft: https://openairdocs.org/model/hiller-oh-23d/aircraft.md
- The NONE engine: https://openairdocs.org/engine/none.md

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