# N100YR: 1973 Cessna 421B, registration cancelled 2019-11-01

- Type: Cancelled registration (FAA registry, deregistered aircraft)
- Cancelled: November 1, 2019
- Status when cancelled: Registration expired, pending cancellation
- Airframe: [Cessna 421B](https://openairdocs.org/model/cessna-421b) (registry code 2076014)
- Engine: [Continental GTSIO-520-C](https://openairdocs.org/engine/continental-gtsio-520-c) (registry code 17035)
- Data sheets: [TCDS A7CE](https://openairdocs.org/tcds/A7CE), [TCDS E7CE](https://openairdocs.org/tcds/E7CE) (OpenAirDocs)
- Serial number: 421B0437
- Year built: 1973
- Type of aircraft: Fixed wing multi engine
- Engine type: Reciprocating
- Airworthiness: Standard
- Certificate issued: February 3, 2009
- Last registry action: February 19, 2016
- Mode S code: A006EA
- Owner when cancelled: [North Country Aviation Inc](https://openairdocs.org/faa-owner/NORTH%20COUNTRY%20AVIATION%20INC)
- Location: [Gaylord, MI](https://openairdocs.org/faa-place/MI/Gaylord)
- Owner type: Corporation
- Owner's area on the map: 44.9981° N, 84.6704° W: Placed by OpenAirDocs at the center of ZIP code 49735, within about 9 miles (OpenAirDocs). The owner's mailing address, not where the aircraft was based
- The mark today: https://openairdocs.org/aircraft/N100YR
- FAA registry: https://registry.faa.gov/AircraftInquiry/Search/NNumberResult?nNumberTxt=100YR
- Page: https://openairdocs.org/deregistered/N100YR-2019-11-01

From the FAA registry file of October 29, 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 Cessna 421B: https://openairdocs.org/model/cessna-421b.md

## Service difficulty reports (1)

Matched to this aircraft by N-number and event date, checked against the reported serial number, make and model.

- [SDR 20010511CW010](https://openairdocs.org/sdr/20010511CW010), May 11, 2001: SPAR CAP. CRACKED. DURING AN ANNUAL INSPECTION, A CRACK APPROX 3 INCHES LONG WAS FOUND ON LEFT WING AFT SPAR, UPPER AFT CAP. BELOW BAGGAGE RACELLE.

## Other aircraft with N100YR

- [Registered now](https://openairdocs.org/aircraft/N100YR): Pilatus PC-24, S/N 626

---
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.