# N323CH: 2005 Sikorsky S-76C-2

- Status: Valid registration
- Airframe: [Sikorsky S-76C-2](https://openairdocs.org/model/sikorsky-s-76c-2) (registry code 8143009, 15 seats)
- Engine: [Turbomeca ARRIEL-2S1](https://openairdocs.org/engine/turbomeca-arriel-2s1) (registry code 60057)
- Data sheets: [TCDS H1NE](https://openairdocs.org/tcds/H1NE) (Sikorsky Aircraft Corporation), [TCDS E00054EN](https://openairdocs.org/tcds/E00054EN) (Safran Helicopter Engines S.A.) (OpenAirDocs)
- Serial number: 760599
- Year built: 2005
- Type: Rotorcraft
- Engine type: Turbo-shaft
- Airworthiness: Standard, transport
- Airworthiness date: September 23, 2005
- Certificate issued: November 22, 2017
- Expires: November 30, 2027
- Mode S code: A379AF
- Registered owner: [Helinet Aviation Services LLC](https://openairdocs.org/faa-owner/HELINET%20AVIATION%20SERVICES%20LLC)
- Location: [Van Nuys, CA](https://openairdocs.org/faa-place/CA/Van%20Nuys)
- Owner type: LLC
- Owner's area on the map: 34.1975° N, 118.4890° W: Placed by OpenAirDocs at the center of ZIP code 91406, 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=323CH
- Page: https://openairdocs.org/aircraft/N323CH

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.

## ADs that may apply (OpenAirDocs): 11 in force

### Matched by airframe (Sikorsky S-76C-2)

None in force.

### Matched by engine (Turbomeca ARRIEL-2S1)

- [AD 2021-13-08](https://openairdocs.org/ad/2021-13-08): Fuel Control/Turbine Engines · Safran Helicopter Engines Arriel 2C and Arriel 2S1. Effective Aug 19, 2021
- [AD 2021-13-03](https://openairdocs.org/ad/2021-13-03): Fuel Control/Turbine Engines · Safran Helicopter Engines Arriel 2B, Arriel 2B1, Arriel 2C and 4 more. Effective Aug 13, 2021
- [AD 2021-05-08](https://openairdocs.org/ad/2021-05-08): Engine BMEP/Torque Indicating · Safran Helicopter Engines Arriel 2C, Arriel 2C1, Arriel 2S1 and 1 more. Effective Apr 15, 2021
- [AD 2016-25-13](https://openairdocs.org/ad/2016-25-13): Engine accessory gearbox (AGB) · Safran Helicopter Engines Arriel 2B, Arriel 2B1, Arriel 2C and 6 more. Effective Feb 3, 2017
- [AD 2016-03-02](https://openairdocs.org/ad/2016-03-02): Torque conformation box (TCB) · Turbomeca Arriel 2C, Arriel 2C1, Arriel 2C2 and 2 more. Effective Mar 15, 2016
- [AD 2015-13-04](https://openairdocs.org/ad/2015-13-04): Engine accessory gearbox (AGB) · Turbomeca Arriel 1A1, Arriel 1A2, Arriel 1B and 16 more. Effective Sep 1, 2015
- [AD 2014-12-05](https://openairdocs.org/ad/2014-12-05): HMU drive gear shaft · Turbomeca Arriel 2B, Arriel 2B1, Arriel 2C and 4 more. Effective Aug 4, 2014
- [AD 2010-04-07](https://openairdocs.org/ad/2010-04-07): Engine · Turbomeca Arriel 2S1. Effective Mar 23, 2010
- [AD 2007-24-10](https://openairdocs.org/ad/2007-24-10): HP/LP fuel pump · Turbomeca Arriel 2S1 and Arriel 2S2. Effective Dec 14, 2007
- [AD 2003-03-12](https://openairdocs.org/ad/2003-03-12): Bleed Valve · Turbomeca Arriel 1A2, Arriel 1C, Arriel 1C1 and 12 more. Effective Mar 7, 2003
- [AD 2002-16-25](https://openairdocs.org/ad/2002-16-25): Fuel pumps · Turbomeca Arriel 2B, Arriel 2C and Arriel 2S1. Effective Sep 26, 2002

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

- [AD 2016-04-12](https://openairdocs.org/ad/2016-04-12) (historical): Engine accessory gearbox (AGB) · Turbomeca Arriel 2B, Arriel 2B1, Arriel 2C and 6 more. Effective Apr 14, 2016
- [AD 2014-19-05](https://openairdocs.org/ad/2014-19-05) (historical): Engine accessory gearbox (AGB) · Turbomeca Arriel 1A1, Arriel 1A2, Arriel 1B and 16 more. Effective Nov 5, 2014

## Information bulletins (advisory)

None matched.

## NTSB investigations

None matched to N323CH.

## FAA accident and incident reports

None matched to N323CH.

## 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) (3)

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 S-76C-2)

- [STC SR01122NY-D](https://openairdocs.org/stc/SR01122NY-D): Installation of an Avionics Innovations Digital Media Player Model DMP-100. Avionics Innovations. Lists S-76 Series
- [STC SR00091LA](https://openairdocs.org/stc/SR00091LA): Installation of an RG-380/40B battery. Concorde Battery Corporation. Lists S-76 Series
- [STC SR01348NY](https://openairdocs.org/stc/SR01348NY) (historical): Installation of boarding steps IAW Key Tech Engineering Services Installation Drawing List IDL00203, Rev B, dated 1/16/01. Keystone Helicopter Corp. Lists S-76 Series

## Related

- Other Sikorsky S-76C-2 aircraft: https://openairdocs.org/model/sikorsky-s-76c-2/aircraft.md
- The Turbomeca ARRIEL-2S1 engine: https://openairdocs.org/engine/turbomeca-arriel-2s1.md

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