# N73: Interstate S-1B1, registration cancelled 1946-02-26

- Type: Cancelled registration (FAA registry, deregistered aircraft)
- Cancelled: February 26, 1946
- Status when cancelled: Valid registration
- Airframe: [Interstate S-1B1](https://openairdocs.org/model/interstate-s-1b1) (registry code 1850302)
- Data sheets: [TCDS A-754](https://openairdocs.org/tcds/A-754) (OpenAirDocs)
- Serial number: 96
- Type of aircraft: Fixed wing single engine
- Certificate issued: April 18, 1944
- Mode S code: A9C8B1
- Owner when cancelled: [Civil Aeronautics Adinistration](https://openairdocs.org/faa-owner/CIVIL%20AERONAUTICS%20ADINISTRATION)
- Location: [Washington, DC](https://openairdocs.org/faa-place/DC/Washington)
- Owner type: Corporation
- The mark today: https://openairdocs.org/aircraft/N73
- FAA registry: https://registry.faa.gov/AircraftInquiry/Search/NNumberResult?nNumberTxt=73
- Page: https://openairdocs.org/deregistered/N73-1946-02-26

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 Interstate S-1B1: https://openairdocs.org/model/interstate-s-1b1.md

## Other aircraft with N73

- [Registered now](https://openairdocs.org/aircraft/N73): Beech 300, S/N FF-8, built 1988
- [Cancelled 1965-04-09](https://openairdocs.org/deregistered/N73-1965-04-09): Douglas DC3, S/N 33206. Exported to Greece. Owner: [Department Of The Navy Of The National Defense](https://openairdocs.org/faa-owner/DEPARTMENT%20OF%20THE%20NAVY%20OF%20THE%20NATIONAL%20DEFENSE), [Washington, DC](https://openairdocs.org/faa-place/DC/Washington)
- [Cancelled 1947-01-28](https://openairdocs.org/deregistered/N73-1947-01-28): Beech 18S, S/N 364. Owner: [United States Government](https://openairdocs.org/faa-owner/UNITED%20STATES%20GOVERNMENT), [Washington, DC](https://openairdocs.org/faa-place/DC/Washington)
- [Cancelled 1938-03-01](https://openairdocs.org/deregistered/N73-1938-03-01): Hammond Y-1 M125A, S/N 302. Owner: [Bureau Of Air Commerce](https://openairdocs.org/faa-owner/BUREAU%20OF%20AIR%20COMMERCE), [Washington, DC](https://openairdocs.org/faa-place/DC/Washington)

---
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.