# N991MB: 1997 AS+ AC 4, registration cancelled 2023-01-14

- Type: Cancelled registration (FAA registry, deregistered aircraft)
- Cancelled: January 14, 2023
- Status when cancelled: Sale reported, canceled
- Airframe: [AS+ AC 4](https://openairdocs.org/model/as-plus-ac-4) (registry code 05628R1)
- Engine: [NONE](https://openairdocs.org/engine/none) (registry code 00000)
- Serial number: 029
- Year built: 1997
- Type of aircraft: Glider
- Engine type: None
- Airworthiness: Experimental, exhibition
- Airworthiness date: April 29, 1998
- Last registry action: January 10, 2022
- Mode S code: ADD76F
- Location: [River Ranch, FL](https://openairdocs.org/faa-place/FL/River%20Ranch)
- Owner type: Individual
- Owner's area on the map: 27.7811° N, 81.2020° W: Placed by OpenAirDocs at the center of ZIP code 33867, within about a mile (OpenAirDocs). The owner's mailing address, not where the aircraft was based
- The mark today: https://openairdocs.org/aircraft/N991MB
- FAA registry: https://registry.faa.gov/AircraftInquiry/Search/NNumberResult?nNumberTxt=991MB
- Page: https://openairdocs.org/deregistered/N991MB-2023-01-14

From the FAA registry file of October 31, 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 AS+ AC 4: https://openairdocs.org/model/as-plus-ac-4.md

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