# N598S: 1960 Sikorsky S-58DT, registration cancelled 2004-05-04

- Type: Cancelled registration (FAA registry, deregistered aircraft)
- Cancelled: May 4, 2004
- Status when cancelled: Triennial form not returned
- Airframe: [Sikorsky S-58DT](https://openairdocs.org/model/sikorsky-s-58dt) (registry code 8141842)
- Engine: [Pratt & Whitney Canada PT6T-6](https://openairdocs.org/engine/pratt-whitney-canada-pt6t-6) (registry code 52106)
- Data sheets: [TCDS 1H11](https://openairdocs.org/tcds/1H11), [TCDS E22EA](https://openairdocs.org/tcds/E22EA) (OpenAirDocs)
- Serial number: 58-1196
- Year built: 1960
- Type of aircraft: Rotorcraft
- Engine type: Turbo-shaft
- Airworthiness: Standard, transport
- Airworthiness date: July 17, 1987
- Certificate issued: October 24, 2000
- Last registry action: December 19, 2006
- Mode S code: A7BCAF
- Owner when cancelled: [Mcmahon Helicopter Services Inc](https://openairdocs.org/faa-owner/MCMAHON%20HELICOPTER%20SERVICES%20INC)
- Location: [Canton, MI](https://openairdocs.org/faa-place/MI/Canton)
- Owner type: Corporation
- Owner's area on the map: 42.3256° N, 83.4836° W: Placed by OpenAirDocs at the center of ZIP code 48187, within about 2 miles (OpenAirDocs). The owner's mailing address, not where the aircraft was based
- The mark today: https://openairdocs.org/aircraft/N598S
- FAA registry: https://registry.faa.gov/AircraftInquiry/Search/NNumberResult?nNumberTxt=598S
- Page: https://openairdocs.org/deregistered/N598S-2004-05-04

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 Sikorsky S-58DT: https://openairdocs.org/model/sikorsky-s-58dt.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 CHI04LA047](https://openairdocs.org/ntsb/CHI04LA047), Dec 22, 2003: Sikorsky S-58JT (N598S), Ypsilanti, MI, destroyed. Probable cause: The pilot became disoriented and attempted to land the helicopter at the wrong ramp resulting in his failure to maintain obstacle clearance during the approach. The light poles were a factor to the…

## 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 20031222033589A](https://openairdocs.org/incident/20031222033589A), Dec 22, 2003: Skrsky S58DT (N598S), Detroit, MI, Destroyed. (-23) On dec. 22, 2003 1805 local time at willor run airport (yip) a sikorski helicopter N598S called Willow Run tower, 6 miles east landing customs. Willow…

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