# N90NS: Polar Explorer FIRE FLY, registration cancelled 2018-03-16

- Type: Cancelled registration (FAA registry, deregistered aircraft)
- Cancelled: March 16, 2018
- Status when cancelled: Registration expired, pending cancellation
- Airframe: [Polar Explorer FIRE FLY](https://openairdocs.org/model/polar-explorer-fire-fly) (registry code 05618DE)
- Engine: [Lycoming IO-540 series](https://openairdocs.org/engine/lycoming-io-540-series) (registry code 41530)
- Data sheets: [TCDS 1E4](https://openairdocs.org/tcds/1E4) (OpenAirDocs)
- Serial number: 001
- Type of aircraft: Fixed wing single engine
- Engine type: Reciprocating
- Airworthiness: Experimental, amateur built
- Airworthiness date: July 21, 2004
- Certificate issued: November 7, 2013
- Last registry action: November 7, 2013
- Mode S code: AC6E10
- Owner when cancelled: [Polar Explorer Inc](https://openairdocs.org/faa-owner/POLAR%20EXPLORER%20INC)
- Location: [Gaithersburg, MD](https://openairdocs.org/faa-place/MD/Gaithersburg)
- Owner type: Corporation
- Owner's area on the map: 39.2287° N, 77.1627° W: Placed by OpenAirDocs at the center of ZIP code 20882, within about 3 miles (OpenAirDocs). The owner's mailing address, not where the aircraft was based
- The mark today: https://openairdocs.org/aircraft/N90NS
- FAA registry: https://registry.faa.gov/AircraftInquiry/Search/NNumberResult?nNumberTxt=90NS
- Page: https://openairdocs.org/deregistered/N90NS-2018-03-16

From the FAA registry file of November 3, 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 Polar Explorer FIRE FLY: https://openairdocs.org/model/polar-explorer-fire-fly.md

---
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.
