# N78DZ: 2015 William D Telfair/Zia Z Telfai EXCALIBUR, registration cancelled 2018-10-27

- Type: Cancelled registration (FAA registry, deregistered aircraft)
- Cancelled: October 27, 2018
- Status when cancelled: Sale reported, canceled
- Airframe: [William D Telfair/Zia Z Telfai EXCALIBUR](https://openairdocs.org/model/william-d-telfair-zia-z-telfai-excalibur) (registry code 05633TL)
- Engine: [Rotax 582UL-99](https://openairdocs.org/engine/rotax-582ul-99) (registry code 55559)
- Serial number: 2614
- Year built: 2015
- Type of aircraft: Fixed wing single engine
- Engine type: 2 cycle
- Kit: Excalibur Aircraft EXCALIBUR
- Airworthiness: Experimental, amateur built
- Airworthiness date: April 19, 2015
- Last registry action: December 5, 2017
- Mode S code: AA8E90
- Location: [Crystal, MN](https://openairdocs.org/faa-place/MN/Crystal)
- Owner type: Individual
- Owner's area on the map: 45.0637° N, 93.3412° W: Placed by OpenAirDocs at the center of ZIP code 55429, within about a mile (OpenAirDocs). The owner's mailing address, not where the aircraft was based
- The mark today: https://openairdocs.org/aircraft/N78DZ
- FAA registry: https://registry.faa.gov/AircraftInquiry/Search/NNumberResult?nNumberTxt=78DZ
- Page: https://openairdocs.org/deregistered/N78DZ-2018-10-27

From the FAA registry file of November 7, 2026, cancelled registrations. Owners' street addresses are left out. The Mode S code belongs to the N-number, not the airframe.

ADs and bulletins for the William D Telfair/Zia Z Telfai EXCALIBUR: https://openairdocs.org/model/william-d-telfair-zia-z-telfai-excalibur.md

## NTSB investigations (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 CEN17LA216](https://openairdocs.org/ntsb/CEN17LA216), Jun 4, 2017: William D Telfair/Zia Z Telfai Excalibur (N78DZ), Albuquerque, NM, substantial damage. Probable cause: The loss of pitch control due to the overload failure of the control rod.

## FAA accident and incident reports (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 20170604008019A](https://openairdocs.org/incident/20170604008019A), Jun 4, 2017: William D Telfair/Zia Z Telfai EXCALIBUR (N78DZ), Albuquerque, NM, Substantial damage. On June 4, 2017, at 0824 MST, an excaliber, N78DZ, registered to [privacy data omitted], was in cruise flight when, according to the pilot, the aircraft began…

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