# N9631D: not currently registered

- Registered now: No (not in the FAA registry file). The mark may be reserved or free to assign
- Earlier aircraft: 1
- Last cancelled: August 21, 1970
- FAA registry: https://registry.faa.gov/AircraftInquiry/Search/NNumberResult?nNumberTxt=9631D
- Page: https://openairdocs.org/aircraft/N9631D

## Aircraft that carried N9631D

- [Cancelled 1970-08-21](https://openairdocs.org/deregistered/N9631D-1970-08-21): Piper PA-22-150, S/N 22-6542. Owner: [Simsbury Flying Service Inc](https://openairdocs.org/faa-owner/SIMSBURY%20FLYING%20SERVICE%20INC), [Simsbury, CT](https://openairdocs.org/faa-place/CT/Simsbury)

## NTSB investigations on N9631D (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 UNK64X3936](https://openairdocs.org/ntsb/UNK64X3936), Sep 12, 1964: Piper PA22 (N9631D), Nantucket, MA, destroyed

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