# N400N: 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: April 10, 1991
- FAA registry: https://registry.faa.gov/AircraftInquiry/Search/NNumberResult?nNumberTxt=400N
- Page: https://openairdocs.org/aircraft/N400N

## Aircraft that carried N400N

- [Cancelled 1991-04-10](https://openairdocs.org/deregistered/N400N-1991-04-10): Aero Commander 690A, S/N 11156. Owner: [O Neill And Sons Inc](https://openairdocs.org/faa-owner/O%20NEILL%20AND%20SONS%20INC), [Tumwater, WA](https://openairdocs.org/faa-place/WA/Tumwater)
- [Cancelled 1948-02-24](https://openairdocs.org/deregistered/N400N-1948-02-24): Travel Air E-4000, S/N 1330, built 1929. Owner: [General Discount Corp](https://openairdocs.org/faa-owner/GENERAL%20DISCOUNT%20CORP), [Atlanta, GA](https://openairdocs.org/faa-place/GA/Atlanta)

## NTSB investigations on N400N (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 SEA91FA027](https://openairdocs.org/ntsb/SEA91FA027), Dec 1, 1990: Aero Commander 690A (N400N), Ryderwood, WA, destroyed, 5 fatal. Probable cause: THE PILOT'S IMPROPER INFLIGHT PLANNING AND FAILURE TO MAINTAIN PROPER ALTITUDE IN MOUNTAINOUS TERRAIN AT NIGHT.

## FAA accident and incident reports on N400N (1)

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 19901130052259A](https://openairdocs.org/incident/19901130052259A), Nov 30, 1990: Gulstm 690A (N400N), Ryderwood, WA, Destroyed, 5 fatal. Cancelled IFR on ground contact. Descending to land struck trees on unlighted hill. Airport surrounded by mountains

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