# N6641D: not currently registered

- Registered now: No (not in the FAA registry file). The mark may be reserved or free to assign
- Earlier aircraft: 2
- Last cancelled: May 31, 2018
- FAA registry: https://registry.faa.gov/AircraftInquiry/Search/NNumberResult?nNumberTxt=6641D
- Page: https://openairdocs.org/aircraft/N6641D

## Aircraft that carried N6641D

- [Cancelled 2018-05-31](https://openairdocs.org/deregistered/N6641D-2018-05-31): Hughes OH-6A, S/N 66-07855. Sale reported, canceled. Owner: [Hagatna, GU](https://openairdocs.org/faa-place/GU/Hagatna)
- [Cancelled 1962-11-13](https://openairdocs.org/deregistered/N6641D-1962-11-13): Lockheed PV-2, S/N 37505. Owner: [Trade-Ayer Inc](https://openairdocs.org/faa-owner/TRADE-AYER%20INC), [Linden, NJ](https://openairdocs.org/faa-place/NJ/Linden)

## NTSB investigations on N6641D (1)

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 WPR09TA277](https://openairdocs.org/ntsb/WPR09TA277), Jun 4, 2009: Hughes OH-6A (N6641D), Benson, AZ, substantial damage. Probable cause: The pilot under instruction's inadequate autorotation technique and the instructor pilot’s delayed remedial action to arrest the rate of descent of the helicopter while in an autorotation flare.

## FAA accident and incident reports on N6641D (2)

From the FAA Accident/Incident Data System. Reports are matched to registry aircraft by N-number and event date, checked against the reported make and model; the registry's history has gaps, so older matches can be wrong. Compare the reported make and model.

- [Accident 20090604018059A](https://openairdocs.org/incident/20090604018059A), Jun 4, 2009: Hughes OH6A (N6641D), Benson, AZ, Substantial damage. (-23) While practicing autorotation procedures, touched, down, aircraft jumped off runway, not enough RPM to maintain flight. Contracted ground second time and…
- [Incident 19870127006799I](https://openairdocs.org/incident/19870127006799I), Jan 27, 1987: Beech 58P (N6641D), Portland, OR. Experienced a near miss by a unidentified Cessna 310 while under control of sea ARTCC. 200 feet lateral separation.

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