# N11BU: 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: June 5, 2021
- FAA registry: https://registry.faa.gov/AircraftInquiry/Search/NNumberResult?nNumberTxt=11BU
- Page: https://openairdocs.org/aircraft/N11BU

## Aircraft that carried N11BU

- [Cancelled 2021-06-05](https://openairdocs.org/deregistered/N11BU-2021-06-05): Highcraft Aero-Marine BUCCANEER II, S/N HB2A0111, built 1990. Sale reported, canceled. Owner: [Fergus Falls, MN](https://openairdocs.org/faa-place/MN/Fergus%20Falls)

## NTSB investigations on N11BU (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 LAX92LA276](https://openairdocs.org/ntsb/LAX92LA276), Jul 3, 1992: Cessna 421B (N11BU), Hayward, CA, substantial damage. Probable cause: THE EXPLOSION OF FUEL VAPORS IN THE RIGHT WING DUE TO THE PILOT'S OVERPRIMING OF THE RIGHT ENGINE DURING A START ATTEMPT AND AN UNCORRECTED PREEXISTING FUEL SYSTEM LEAK. A FACTOR IN THE ACCIDENT WAS…

## FAA accident and incident reports on N11BU (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 19920702023659A](https://openairdocs.org/incident/19920702023659A), Jul 2, 1992: Cessna 421B (N11BU), Hayward, CA, Substantial damage. Explosion in right wing auxiliary tank. Leak in line to aux pump. Pilot believes he overprimed engine on start up.
- [Incident 19800618055149I](https://openairdocs.org/incident/19800618055149I), Jun 18, 1980: Cessna 421B (N11BU), Roanoke, VA. Encountered lightning strike.

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