# N6641A: Hughes OH-6A

- Status: Valid registration
- Airframe: [Hughes OH-6A](https://openairdocs.org/model/hughes-oh-6a) (registry code 4470905, 4 seats)
- Data sheets: [TCDS H3WE](https://openairdocs.org/tcds/H3WE) (MD Helicopters LLC) (OpenAirDocs)
- Serial number: 66-07799
- Type: Rotorcraft
- Engine type: Turbo-shaft
- Certificate issued: March 21, 2018
- Expires: March 31, 2028
- Mode S code: A8C591
- Registered owner: [Brown Helicopter Inc](https://openairdocs.org/faa-owner/BROWN%20HELICOPTER%20INC)
- Location: [Pensacola, FL](https://openairdocs.org/faa-place/FL/Pensacola)
- Owner type: Corporation
- Owner's area on the map: 30.3919° N, 87.3720° W: Placed by OpenAirDocs at the center of ZIP code 32506, within about 3 miles (OpenAirDocs). The owner's mailing address, not where the aircraft is based
- FAA registry: https://registry.faa.gov/AircraftInquiry/Search/NNumberResult?nNumberTxt=6641A
- Page: https://openairdocs.org/aircraft/N6641A

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 (Hughes OH-6A)

None in force.

## Information bulletins (advisory)

None matched.

## NTSB investigations

None matched to N6641A.

## FAA accident and incident reports

None matched to N6641A.

## 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.

## Earlier aircraft with N6641A

The FAA can reassign an N-number once a registration is cancelled. These aircraft carried N6641A before.

- [Cancelled 1989-04-03](https://openairdocs.org/deregistered/N6641A-1989-04-03): Beech E-55, S/N TE1173. Triennial form not returned

## Related

- Other Hughes OH-6A aircraft: https://openairdocs.org/model/hughes-oh-6a/aircraft.md

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