# N621ST: 1964 Hawker Siddeley DH-125, registration cancelled 2002-06-13

- Type: Cancelled registration (FAA registry, deregistered aircraft)
- Cancelled: June 13, 2002
- Status when cancelled: Second triennial mailing, no response
- Airframe: [Hawker Siddeley DH-125](https://openairdocs.org/model/hawker-siddeley-dh-125) (registry code 4230102)
- Engine: [Brist Sid MARK-521](https://openairdocs.org/engine/brist-sid-mark-521) (registry code 10201)
- Serial number: 25014
- Year built: 1964
- Type of aircraft: Fixed wing multi engine
- Engine type: Turbo-jet
- Airworthiness: Standard, transport
- Airworthiness date: January 20, 1965
- Certificate issued: March 13, 1985
- Last registry action: April 2, 1997
- Mode S code: A81B96
- Owner when cancelled: [Ok Aircraft Parts Inc](https://openairdocs.org/faa-owner/OK%20AIRCRAFT%20PARTS%20INC)
- Location: [Gilroy, CA](https://openairdocs.org/faa-place/CA/Gilroy)
- Owner type: Corporation
- Owner's area on the map: 37.0162° N, 121.5594° W: Placed by OpenAirDocs at the center of ZIP code 95020, within about 7 miles (OpenAirDocs). The owner's mailing address, not where the aircraft was based
- The mark today: https://openairdocs.org/aircraft/N621ST
- FAA registry: https://registry.faa.gov/AircraftInquiry/Search/NNumberResult?nNumberTxt=621ST
- Page: https://openairdocs.org/deregistered/N621ST-2002-06-13

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 Hawker Siddeley DH-125: https://openairdocs.org/model/hawker-siddeley-dh-125.md

## NTSB investigations (1)

From the NTSB's public API. Aircraft are matched to registry aircraft by N-number and event date, checked against the reported serial number, make and model; the registry's history has gaps, so older matches can be wrong. Compare the reported make and model.

- [NTSB MIA73AM017](https://openairdocs.org/ntsb/MIA73AM017), Aug 12, 1972: Hawker-Sdly DH-125 (N621ST), Haleyville, AL, substantial damage

## Other aircraft with N621ST

- [Registered now](https://openairdocs.org/aircraft/N621ST): Diamond Aircraft Ind DA 62, S/N 62.022, built 2016

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