# N4976X: Ultralight Air QUICKSILVER MX II, registration cancelled 1988-06-24

- Type: Cancelled registration (FAA registry, deregistered aircraft)
- Cancelled: June 24, 1988
- Status when cancelled: N-number assigned, not yet registered
- Airframe: [Ultralight Air QUICKSILVER MX II](https://openairdocs.org/model/ultralight-air-quicksilver-mx-ii) (registry code 05675WC)
- Serial number: 1903
- Type of aircraft: Fixed wing single engine
- Mode S code: A62D59
- The mark today: https://openairdocs.org/aircraft/N4976X
- FAA registry: https://registry.faa.gov/AircraftInquiry/Search/NNumberResult?nNumberTxt=4976X
- Page: https://openairdocs.org/deregistered/N4976X-1988-06-24

From the FAA registry file of November 5, 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 Ultralight Air QUICKSILVER MX II: https://openairdocs.org/model/ultralight-air-quicksilver-mx-ii.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 CHI86FEE05](https://openairdocs.org/ntsb/CHI86FEE05), Jul 4, 1986: Eipper Mxii (N4976X), Aurora, IL, substantial damage

---
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.