# N56RD: 1991 Sikorsky S-76B, registration cancelled 2018-03-14

- Type: Cancelled registration (FAA registry, deregistered aircraft)
- Cancelled: March 14, 2018
- Status when cancelled: Registration expired, pending cancellation
- Airframe: [Sikorsky S-76B](https://openairdocs.org/model/sikorsky-s-76b) (registry code 8143007)
- Engine: [Pratt & Whitney PT6 series](https://openairdocs.org/engine/pratt-whitney-pt6-series) (registry code 52033)
- Data sheets: [TCDS H1NE](https://openairdocs.org/tcds/H1NE) (OpenAirDocs)
- Serial number: 760368
- Year built: 1991
- Type of aircraft: Rotorcraft
- Engine type: Turbo-prop
- Airworthiness: Standard, transport
- Airworthiness date: March 1, 1991
- Certificate issued: March 21, 2006
- Last registry action: September 18, 2013
- Mode S code: A7260C
- Owner when cancelled: [Rdc Marine Inc](https://openairdocs.org/faa-owner/RDC%20MARINE%20INC)
- Location: [Houston, TX](https://openairdocs.org/faa-place/TX/Houston)
- Owner type: Corporation
- Owner's area on the map: 29.7482° N, 95.4689° W: Placed by OpenAirDocs at the center of ZIP code 77056, within about a mile (OpenAirDocs). The owner's mailing address, not where the aircraft was based
- The mark today: https://openairdocs.org/aircraft/N56RD
- FAA registry: https://registry.faa.gov/AircraftInquiry/Search/NNumberResult?nNumberTxt=56RD
- Page: https://openairdocs.org/deregistered/N56RD-2018-03-14

From the FAA registry file of November 5, 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-76B: https://openairdocs.org/model/sikorsky-s-76b.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 CEN12FA250](https://openairdocs.org/ntsb/CEN12FA250), Apr 17, 2012: Sikorsky S-76B (N56RD), Gulf of Mexico, LA, substantial damage. Probable cause: The intermittent loss of engine power due to a "stuck" stepper motor in the No. 2 engine's fuel control as a result of an inadequate overhaul. Contributing to the accident was the pilot's decision to…

## 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 20120417009099A](https://openairdocs.org/incident/20120417009099A), Apr 17, 2012: Sikorsky S-76B (N56RD), Intracoastal Ci, LA, Destroyed. During approach to an oil platform aircraft experienced power loss in number 2 engine and impacted the water.

## Other aircraft with N56RD

- [Registered now](https://openairdocs.org/aircraft/N56RD): Duffy Russell A RUCKUS, S/N TR018-7-25, built 2026

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