# N2KX: 1966 Hughes TH-55, registration cancelled 2017-09-07

- Type: Cancelled registration (FAA registry, deregistered aircraft)
- Cancelled: September 7, 2017
- Status when cancelled: Registration expired, pending cancellation
- Airframe: [Hughes TH-55](https://openairdocs.org/model/hughes-th-55) (registry code 4471002)
- Engine: [Lycoming HIO-360 series](https://openairdocs.org/engine/lycoming-hio-360-series) (registry code 41524)
- Data sheets: [TCDS 4H12](https://openairdocs.org/tcds/4H12), [TCDS 1E10](https://openairdocs.org/tcds/1E10) (OpenAirDocs)
- Serial number: 66-18349
- Year built: 1966
- Type of aircraft: Rotorcraft
- Engine type: Reciprocating
- Airworthiness: Standard, normal
- Airworthiness date: July 25, 1988
- Certificate issued: December 17, 2010
- Last registry action: December 17, 2010
- Mode S code: A18E48
- Owner when cancelled: [Lippmann Norman M](https://openairdocs.org/faa-owner/LIPPMANN%20NORMAN%20M)
- Location: [Boonton, NJ](https://openairdocs.org/faa-place/NJ/Boonton)
- Owner type: Individual
- Owner's area on the map: 40.9304° N, 74.4111° W: Placed by OpenAirDocs at the center of ZIP code 07005, within about 2 miles (OpenAirDocs). The owner's mailing address, not where the aircraft was based
- The mark today: https://openairdocs.org/aircraft/N2KX
- FAA registry: https://registry.faa.gov/AircraftInquiry/Search/NNumberResult?nNumberTxt=2KX
- Page: https://openairdocs.org/deregistered/N2KX-2017-09-07

From the FAA registry file of October 28, 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 TH-55: https://openairdocs.org/model/hughes-th-55.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 IAD05LA075](https://openairdocs.org/ntsb/IAD05LA075), Jun 6, 2005: Hughes TH-55 (N2KX), Paintsville, KY, destroyed. Probable cause: the pilot's inadvertent encounter with ground resonance which resulted in destruction of the helicopter.

## 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 20050606012719A](https://openairdocs.org/incident/20050606012719A), Jun 6, 2005: Hughes TH55 (N2KX), Paintsville, KY, Substantial damage. (-23) On 06/06/2005 at approximately 18:00 hours on the ramp at Combs airport (3I6), aircraft N2KX, a Hughes 269A, went in ground resonance during run up,…

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