# N681UP: 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: December 8, 2011
- FAA registry: https://registry.faa.gov/AircraftInquiry/Search/NNumberResult?nNumberTxt=681UP
- Page: https://openairdocs.org/aircraft/N681UP

## Aircraft that carried N681UP

- [Cancelled 2011-12-08](https://openairdocs.org/deregistered/N681UP-2011-12-08): Boeing 747-121, S/N 19661, built 1970. Owner: [Stewart Industries International LLC](https://openairdocs.org/faa-owner/STEWART%20INDUSTRIES%20INTERNATIONAL%20LLC), [Guthrie, OK](https://openairdocs.org/faa-place/OK/Guthrie)

## NTSB investigations on N681UP (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 BFO92IA046](https://openairdocs.org/ntsb/BFO92IA046), Mar 19, 1992: Boeing 747-123 (N681UP), Louisville, KY, incident, minor damage. Probable cause: INADEQUATE OBSTACLE CLEARANCE, WHICH RESULTED IN ON GROUND COLLISION WITH A BLAST FENCE. CONTRIBUTING WAS INADEQUATE INSTRUCTION FROM GROUND PERSONNEL.

## FAA accident and incident reports on N681UP (3)

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 19940919038919I](https://openairdocs.org/incident/19940919038919I), Sep 19, 1994: Boeing 747121 (N681UP), Portland, OR, Minor damage. Hydraulic failure on approach. Landed ok. Flex line at trunnion leaked. Powered steering. Bogie tilt damaged.
- [Incident 19920927044029I](https://openairdocs.org/incident/19920927044029I), Sep 27, 1992: Boeing 747121 (N681UP), Ontario, CA, Minor damage. Unable to maintain pressurization. Diverted to Ontario. Found L-1 aft crank arm door locking device had sheared.
- [Incident 19920319014969I](https://openairdocs.org/incident/19920319014969I), Mar 19, 1992: Boeing 747121 (N681UP), Louisville, KY, Minor damage. Wing tip struck the blast fence while making a turn. Under the direction of a marshaller.

---
OpenAirDocs.org is an independent research project of [Contrail Labs](https://contraillabs.com/). It is not affiliated with the FAA or the NTSB. Source documents are U.S. government works in the public domain.