# N437DS: 1973 Hughes 500C, registration cancelled 2015-05-06

- Type: Cancelled registration (FAA registry, deregistered aircraft)
- Cancelled: May 6, 2015
- Status when cancelled: Registration expired, pending cancellation
- Airframe: [Hughes 500C](https://openairdocs.org/model/hughes-500c) (registry code 4470805)
- Engine: [Allison 250-C20 series](https://openairdocs.org/engine/allison-250-c20-series) (registry code 03020)
- Data sheets: [TCDS H3WE](https://openairdocs.org/tcds/H3WE), [TCDS E4CE](https://openairdocs.org/tcds/E4CE) (OpenAirDocs)
- Serial number: 530476S
- Year built: 1973
- Type of aircraft: Rotorcraft
- Engine type: Turbo-prop
- Airworthiness: Standard, normal
- Airworthiness date: February 14, 1996
- Certificate issued: January 6, 1997
- Last registry action: April 17, 2003
- Mode S code: A53D7B
- Owner when cancelled: [Heli Guam Inc](https://openairdocs.org/faa-owner/HELI%20GUAM%20INC)
- Location: Agana Heights, GU, Guam
- Owner type: Corporation
- The mark today: https://openairdocs.org/aircraft/N437DS
- FAA registry: https://registry.faa.gov/AircraftInquiry/Search/NNumberResult?nNumberTxt=437DS
- Page: https://openairdocs.org/deregistered/N437DS-2015-05-06

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 Hughes 500C: https://openairdocs.org/model/hughes-500c.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 LAX00LA109](https://openairdocs.org/ntsb/LAX00LA109), Feb 18, 2000: Hughes 500C (N437DS), Pohnpei (Pacific Ocean), destroyed

## FAA accident and incident reports (1)

From the FAA Accident/Incident Data System. Reports are matched to registry aircraft by N-number and event date, checked against the reported make and model; the registry's history has gaps, so older matches can be wrong. Compare the reported make and model.

- [Accident 20000218010219A](https://openairdocs.org/incident/20000218010219A), Feb 18, 2000: N437DS, Pohnei, Guam, No damage. (-23) Helicopter departed fishing vessel at approx 1108 hrs LCL, 200 miles south east of Pohnei. At approx 100-150 ft, the helicopter experienced an…

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