# N51953: 1963 Sikorsky SH-3A

- Status: Valid registration
- Airframe: [Sikorsky SH-3A](https://openairdocs.org/model/sikorsky-sh-3a) (registry code 8141828, 28 seats)
- Engine: [GE T58 series](https://openairdocs.org/engine/ge-t58-series) (registry code 30008)
- Data sheets: [TCDS R00008LA](https://openairdocs.org/tcds/R00008LA) (Siller Helicopters) (OpenAirDocs)
- Serial number: 149903
- Year built: 1963
- Type: Rotorcraft
- Engine type: Turbo-shaft
- Airworthiness: Restricted, agriculture and pest control, forest, other
- Airworthiness date: September 1, 2000
- Certificate issued: June 16, 2009
- Expires: July 31, 2027
- Mode S code: A68601
- Registered owner: [Siller Helicopters LLC](https://openairdocs.org/faa-owner/SILLER%20HELICOPTERS%20LLC)
- Location: [Chamblee, GA](https://openairdocs.org/faa-place/GA/Chamblee)
- Owner type: Corporation
- Owner's area on the map: 33.8885° N, 84.2895° W: Placed by OpenAirDocs at the center of ZIP code 30341, within about 2 miles (OpenAirDocs). The owner's mailing address, not where the aircraft is based
- FAA registry: https://registry.faa.gov/AircraftInquiry/Search/NNumberResult?nNumberTxt=51953
- Page: https://openairdocs.org/aircraft/N51953

From the FAA registry file of October 24, 2026. ADs below are matched by the registry's airframe and engine model codes. They may apply; each AD's applicability can narrow it by serial number, part number or installed equipment. This is not a compliance determination. The registry lists only the engine series, so ADs for every GE T58 model are included.

## ADs that may apply (OpenAirDocs): 3 in force

### Matched by airframe (Sikorsky SH-3A)

- [AD 2026-15-17](https://openairdocs.org/ad/2026-15-17): Main Rotor Gearbox · Glacier Helicopter CH-3E, S-61A, S-61D and 12 more. Effective Sep 10, 2026
- [AD 2026-11-05](https://openairdocs.org/ad/2026-11-05): Rotorcraft flight control; Rotorcraft servo system · Carson Helicopters S-61L, SH-3H, CH-3E and 11 more. Effective Jul 9, 2026
- [AD 2021-10-16](https://openairdocs.org/ad/2021-10-16): Engine/Transmission Coupling · Carson Helicopters S-61L, SH-3H, SH-3H and 6 more. Effective Jul 1, 2021

### Matched by engine (GE T58 series)

None in force.

### Historical (superseded or no longer in force)

- [AD 2015-20-12](https://openairdocs.org/ad/2015-20-12) (historical): Main Rotor Gearbox · Carson Helicopters SH-3H, SH-3H, CH-3E and 13 more. Effective Nov 24, 2015

## Information bulletins (advisory)

None matched.

## NTSB investigations

None matched to N51953.

## FAA accident and incident reports

None matched to N51953.

## Service difficulty reports

None filed for this aircraft. Matched to this aircraft by N-number and event date, checked against the reported serial number, make and model.

## STCs that may be installed (OpenAirDocs) (2)

Approved for this aircraft's airframe or engine model, in force first, then newest. The registry doesn't record which STCs an aircraft has; its records do.

### Approved for the airframe (Sikorsky SH-3A)

- [STC SR00206NY](https://openairdocs.org/stc/SR00206NY): Installation of 11,000 pound capacity Cargo Sling. Carson Helicopters Inc
- [STC SR01127SE](https://openairdocs.org/stc/SR01127SE): Modification of main rotor blade part number 61170-20201 in accordance with Master Drawing List RR 9633-08, Revision A, dated September 17, 2002, or later FAA approved revision. Retirement life for the modified main rotor blade, part number RR-61170-20201 is 21,200 total time in service. Park Technologies, LLC

## Earlier aircraft with N51953

The FAA can reassign an N-number once a registration is cancelled. These aircraft carried N51953 before.

- [Cancelled 1948-11-19](https://openairdocs.org/deregistered/N51953-1948-11-19): Fairchild M-62A, S/N T41-437, built 1945. Owner: [Mark William](https://openairdocs.org/faa-owner/MARK%20WILLIAM), [Mckees Rocks, PA](https://openairdocs.org/faa-place/PA/Mckees%20Rocks)

## Related

- Other Sikorsky SH-3A aircraft: https://openairdocs.org/model/sikorsky-sh-3a/aircraft.md
- The GE T58 series engine: https://openairdocs.org/engine/ge-t58-series.md

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