# N555MM: 1950 Beech D18S, registration cancelled 2012-08-23

- Type: Cancelled registration (FAA registry, deregistered aircraft)
- Cancelled: August 23, 2012
- Status when cancelled: Revoked, canceled
- Airframe: [Beech D18S](https://openairdocs.org/model/beech-d18s) (registry code 1151004)
- Engine: [Pratt & Whitney R-985 series](https://openairdocs.org/engine/pratt-whitney-r-985-series) (registry code 52008)
- Data sheets: [TCDS A-765](https://openairdocs.org/tcds/A-765) (OpenAirDocs)
- Serial number: A-541
- Year built: 1950
- Type of aircraft: Fixed wing multi engine
- Engine type: Reciprocating
- Airworthiness: Standard
- Certificate issued: February 20, 1976
- Last registry action: May 29, 1977
- Mode S code: A7131D
- Owner when cancelled: [Poseidon Investments Incorporated](https://openairdocs.org/faa-owner/POSEIDON%20INVESTMENTS%20INCORPORATED)
- Location: [Austin, TX](https://openairdocs.org/faa-place/TX/Austin)
- Owner type: Corporation
- Owner's area on the map: 30.2706° N, 97.7426° W: Placed by OpenAirDocs at the center of ZIP code 78701, within about a mile (OpenAirDocs). The owner's mailing address, not where the aircraft was based
- The mark today: https://openairdocs.org/aircraft/N555MM
- FAA registry: https://registry.faa.gov/AircraftInquiry/Search/NNumberResult?nNumberTxt=555MM
- Page: https://openairdocs.org/deregistered/N555MM-2012-08-23

From the FAA registry file of October 27, 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 Beech D18S: https://openairdocs.org/model/beech-d18s.md

## Other aircraft with N555MM

- [Registered now](https://openairdocs.org/aircraft/N555MM): Textron 182T, S/N 18283177, built 2022

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