# N4493M: Hughes 500D, registration cancelled 2004-07-15

- Type: Cancelled registration (FAA registry, deregistered aircraft)
- Cancelled: July 15, 2004
- Status when cancelled: Triennial form not returned
- Airframe: [Hughes 500D](https://openairdocs.org/model/hughes-500d) (registry code 4470806)
- Data sheets: [TCDS H3WE](https://openairdocs.org/tcds/H3WE) (OpenAirDocs)
- Serial number: 570137D
- Type of aircraft: Rotorcraft
- Airworthiness: Standard, normal
- Airworthiness date: October 27, 1983
- Certificate issued: September 22, 1999
- Last registry action: May 18, 2004
- Mode S code: A56ED9
- Owner when cancelled: [K & S Helicopters Inc](https://openairdocs.org/faa-owner/K%20%26%20S%20HELICOPTERS%20INC)
- Location: [Kailua Kona, HI](https://openairdocs.org/faa-place/HI/Kailua%20Kona)
- Physical address: [Hilo, HI](https://openairdocs.org/faa-place/HI/Hilo)
- Owner type: Corporation
- Owner's area on the map: 19.6452° N, 155.9979° W: Placed by OpenAirDocs: center of Kailua, HI, within about 2 miles (OpenAirDocs). The owner's mailing address, not where the aircraft was based
- The mark today: https://openairdocs.org/aircraft/N4493M
- FAA registry: https://registry.faa.gov/AircraftInquiry/Search/NNumberResult?nNumberTxt=4493M
- Page: https://openairdocs.org/deregistered/N4493M-2004-07-15

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 500D: https://openairdocs.org/model/hughes-500d.md

## NTSB investigations (2)

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 LAX03FA200](https://openairdocs.org/ntsb/LAX03FA200), Jun 15, 2003: McDonnell Douglas 369D (N4493M), Volcano, HI, destroyed, 4 fatal. Probable cause: a loss of engine power due to the fatigue fracture and separation of the compressor coupling adapter. The fatigue fracture was initiated by fretting on the pilot diameter due to both the inadequate…
- [NTSB FTW86LA152](https://openairdocs.org/ntsb/FTW86LA152), Aug 20, 1986: Hughes 369-500D (N4493M), Fort Stockton, TX, substantial damage

## FAA accident and incident reports (2)

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 20030615014319A](https://openairdocs.org/incident/20030615014319A), Jun 15, 2003: Hughes 369D (N4493M), Hilo, HI, Destroyed, 4 fatal. (-23) Suspected engine failure.
- [Accident 19860820044119A](https://openairdocs.org/incident/19860820044119A), Aug 20, 1986: Hughes 369D (N4493M), Ft Stockton, TX, Substantial damage. Aircraft was damaged during a hard emergency landing. Engine failed from fuel exhaustion.

## Other aircraft with N4493M

- [Cancelled 2010-05-28](https://openairdocs.org/deregistered/N4493M-2010-05-28): Robinson Helicopter R44 II, S/N 12942. Exported to Brazil. Owner: [Business Air Parts Inc](https://openairdocs.org/faa-owner/BUSINESS%20AIR%20PARTS%20INC), [Fort Lauderdale, FL](https://openairdocs.org/faa-place/FL/Fort%20Lauderdale)
- [Cancelled 1950-01-20](https://openairdocs.org/deregistered/N4493M-1950-01-20): Piper J3C-65, S/N 22628, built 1947. Exported to Cuba. Owner: [Sankey Frank](https://openairdocs.org/faa-owner/SANKEY%20FRANK), [Miami, FL](https://openairdocs.org/faa-place/FL/Miami)

---
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.