# N20671: 1999 Boeing CH47-414, registration cancelled 2001-12-31

- Type: Cancelled registration (FAA registry, deregistered aircraft)
- Cancelled: December 31, 2001
- Exported to: United Kingdom
- Status when cancelled: Triennial form not returned
- Airframe: [Boeing CH47-414](https://openairdocs.org/model/boeing-ch47-414) (registry code 1385060)
- Engine: [Lycoming T-55 SER TS](https://openairdocs.org/engine/lycoming-t-55-ser-ts) (registry code 41555)
- Serial number: M4482
- Year built: 1999
- Type of aircraft: Rotorcraft
- Engine type: Turbo-shaft
- Airworthiness: Experimental, research and development
- Airworthiness date: July 12, 1999
- Certificate issued: November 17, 1998
- Last registry action: November 20, 2001
- Mode S code: A1ABB4
- Owners when cancelled: [Boeing Company](https://openairdocs.org/faa-owner/BOEING%20COMPANY), [Helicopter Division](https://openairdocs.org/faa-owner/HELICOPTER%20DIVISION)
- Location: [Philadelphia, PA](https://openairdocs.org/faa-place/PA/Philadelphia)
- Physical address: [Ridley Park, PA](https://openairdocs.org/faa-place/PA/Ridley%20Park)
- Owner type: Corporation
- Owner's area on the map: 39.9218° N, 75.2333° W: Placed by OpenAirDocs at the center of ZIP code 19142, within about a mile (OpenAirDocs). The owner's mailing address, not where the aircraft was based
- The mark today: https://openairdocs.org/aircraft/N20671
- FAA registry: https://registry.faa.gov/AircraftInquiry/Search/NNumberResult?nNumberTxt=20671
- Page: https://openairdocs.org/deregistered/N20671-2001-12-31

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 Boeing CH47-414: https://openairdocs.org/model/boeing-ch47-414.md

## Other aircraft with N20671

- [Registered now](https://openairdocs.org/aircraft/N20671): Head Balloons AX8-88, S/N 386, built 2009
- [Cancelled 1993-11-02](https://openairdocs.org/deregistered/N20671-1993-11-02): Cessna 172M, S/N 17261478. Exported to Chile. Owner: [Hayward Flying Club Inc](https://openairdocs.org/faa-owner/HAYWARD%20FLYING%20CLUB%20INC), [San Lorenzo, CA](https://openairdocs.org/faa-place/CA/San%20Lorenzo)
- [Cancelled 1942-02-17](https://openairdocs.org/deregistered/N20671-1942-02-17): General G1-80, S/N 1. Owner: [General Aircraft Corp](https://openairdocs.org/faa-owner/GENERAL%20AIRCRAFT%20CORP), [South Lowell, MA](https://openairdocs.org/faa-place/MA/South%20Lowell)

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