# N631US: 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: March 15, 2019
- FAA registry: https://registry.faa.gov/AircraftInquiry/Search/NNumberResult?nNumberTxt=631US
- Page: https://openairdocs.org/aircraft/N631US

## Aircraft that carried N631US

- [Cancelled 2019-03-15](https://openairdocs.org/deregistered/N631US-2019-03-15): DJI S900/A2, S/N CD91E25CBFE0D2D93617984441FE2C. Registration expired, pending cancellation. Owner: [Strataswarm Inc](https://openairdocs.org/faa-owner/STRATASWARM%20INC), [North Hollywood, CA](https://openairdocs.org/faa-place/CA/North%20Hollywood)

## NTSB investigations on N631US (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 CHI95IA028](https://openairdocs.org/ntsb/CHI95IA028), Nov 2, 1994: Boeing 747-251B (N631US), Chicag0, IL, incident, minor damage. Probable cause: inattentive maintenance service of the airplane by the mechanic who failed to disengage the constant speed drive (CSD) after the engine runup had been completed. A factor in this incident was the…

## FAA accident and incident reports on N631US (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.

- [Incident 19960303017599I](https://openairdocs.org/incident/19960303017599I), Mar 3, 1996: Boeing 747251B (N631US), Manila, RP. Narrative: flt. 007 departed nrt en-route to sin on March 3, 1996. At FL 390 AGL. The "auto fail light" illuminated at the second officer's panel. The crew…

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