# N21208: 1998 Boeing CH 47SD, registration cancelled 2001-12-31

- Type: Cancelled registration (FAA registry, deregistered aircraft)
- Cancelled: December 31, 2001
- Exported to: Singapore
- Status when cancelled: Valid registration
- Airframe: [Boeing CH 47SD](https://openairdocs.org/model/boeing-ch-47sd) (registry code 1381614)
- Engine: [Lycoming T-55 SER TS](https://openairdocs.org/engine/lycoming-t-55-ser-ts) (registry code 41555)
- Serial number: M4131
- Year built: 1998
- Type of aircraft: Rotorcraft
- Engine type: Turbo-shaft
- Airworthiness: Experimental, crew training
- Airworthiness date: December 8, 2000
- Certificate issued: September 9, 1999
- Last registry action: February 23, 2001
- Mode S code: A1C369
- Owners when cancelled: [Boeing Co](https://openairdocs.org/faa-owner/BOEING%20CO), [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/N21208
- FAA registry: https://registry.faa.gov/AircraftInquiry/Search/NNumberResult?nNumberTxt=21208
- Page: https://openairdocs.org/deregistered/N21208-2001-12-31

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 CH 47SD: https://openairdocs.org/model/boeing-ch-47sd.md

## Other aircraft with N21208

- [Registered now](https://openairdocs.org/aircraft/N21208): Head Balloons AX8-88, S/N 393, built 2009
- [Cancelled 1988-07-22](https://openairdocs.org/deregistered/N21208-1988-07-22): Piper PA-34-200T, S/N 347870431. N-number assigned, not yet registered
- [Cancelled 1974-01-07](https://openairdocs.org/deregistered/N21208-1974-01-07): Cessna 182P, S/N 182 61488. Owner: [Srh Corporation](https://openairdocs.org/faa-owner/SRH%20CORPORATION), [Keene, NH](https://openairdocs.org/faa-place/NH/Keene)

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