# N798P: 2007 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-2S2](https://openairdocs.org/engine/turbomeca-arriel-2s2) (registry code 60036) - 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: 760685 - Year built: 2007 - Type: Rotorcraft - Engine type: Turbo-shaft - Airworthiness: Standard, transport - Airworthiness date: November 2, 2007 - Certificate issued: January 3, 2017 - Expires: January 31, 2030 - Mode S code: AAD702 - Registered owner: [Phi Health LLC](https://openairdocs.org/faa-owner/PHI%20HEALTH%20LLC) - Location: [Tempe, AZ](https://openairdocs.org/faa-place/AZ/Tempe) - Owner type: LLC - Owner's area on the map: 33.4148° N, 111.9093° W: Placed by OpenAirDocs: center of Tempe, AZ, within about 4 miles (OpenAirDocs). The owner's mailing address, not where the aircraft is based - FAA registry: https://registry.faa.gov/AircraftInquiry/Search/NNumberResult?nNumberTxt=798P - Page: https://openairdocs.org/aircraft/N798P 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): 9 in force ### Matched by airframe (Sikorsky S-76C-2) None in force. ### Matched by engine (Turbomeca ARRIEL-2S2) - [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 2012-18-18](https://openairdocs.org/ad/2012-18-18): Gas generator (GG) turbine blade · Turbomeca Arriel 2B, Arriel 2B1, Arriel 2C2 and 1 more. Effective Oct 24, 2012 - [AD 2012-12-20](https://openairdocs.org/ad/2012-12-20): Digital engine control units · Turbomeca Arriel 2C1, Arriel 2C2 and Arriel 2S2. Effective Jul 26, 2012 - [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 ### 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 (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 CEN10FA079](https://openairdocs.org/ntsb/CEN10FA079), Dec 24, 2009: Sikorsky S-76C++ (N798P), Gulf of Mexico (Gulf of Mexico), substantial damage. Probable cause: The pilot's failure to fully land the helicopter prior to entering a turn in strong, crosswind conditions, which resulted in a dynamic rollover. ## 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 20091224053309A](https://openairdocs.org/incident/20091224053309A), Dec 24, 2009: Sikorsky S-76-C (N798P), OC, Substantial damage. The pilot in command lost control of the helicopter while ground taxiing on an offshore oil drilling platform. The aircraft rolled on to its right side while… ## Service difficulty reports (1) As reported by operators and repair stations. Matched to this aircraft by N-number and event date, checked against the reported serial number, make and model. - [SDR HEEA125418](https://openairdocs.org/sdr/HEEA125418), Jul 26, 2009: TRANSDUCER. UNKNOWN. DURING DESCENT, PILOT BEGAN LOWERING COLLECTIVE AND AIRCRAFT EXPERIENCED AN ABRUPT YAW TO RIGHT, FOLLOWED BY ILLUMINATION OF THE NR 1 ENGINE OUT WARNING LIGHT A ## 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 ## Earlier aircraft with N798P The FAA can reassign an N-number once a registration is cancelled. These aircraft carried N798P before. - [Cancelled 1970-06-29](https://openairdocs.org/deregistered/N798P-1970-06-29): Boeing 707-321C, S/N 18790. Owner: [Pan American World Airways Inc](https://openairdocs.org/faa-owner/PAN%20AMERICAN%20WORLD%20AIRWAYS%20INC), [New York, NY](https://openairdocs.org/faa-place/NY/New%20York) ## Related - Other Sikorsky S-76C-2 aircraft: https://openairdocs.org/model/sikorsky-s-76c-2/aircraft.md - The Turbomeca ARRIEL-2S2 engine: https://openairdocs.org/engine/turbomeca-arriel-2s2.md --- OpenAirDocs.org is an independent research project of [Contrail Labs](https://contraillabs.com/). It is not affiliated with the FAA or the NTSB. Source documents are U.S. government works in the public domain.