# N724PH: 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: 760688 - Year built: 2007 - Type: Rotorcraft - Engine type: Turbo-shaft - Airworthiness: Standard, transport - Airworthiness date: October 2, 2019 - Certificate issued: September 4, 2019 - Expires: September 30, 2029 - Mode S code: A9B3B5 - Registered owner: [Phi Aviation LLC](https://openairdocs.org/faa-owner/PHI%20AVIATION%20LLC) - Location: [Lafayette, LA](https://openairdocs.org/faa-place/LA/Lafayette) - Owner type: LLC - Owner's area on the map: 30.1552° N, 92.0282° W: Placed by OpenAirDocs at the center of ZIP code 70508, within about 3 miles (OpenAirDocs). The owner's mailing address, not where the aircraft is based - FAA registry: https://registry.faa.gov/AircraftInquiry/Search/NNumberResult?nNumberTxt=724PH - Page: https://openairdocs.org/aircraft/N724PH 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 None matched to N724PH. ## FAA accident and incident reports None matched to N724PH. ## 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 HEEA202405230001](https://openairdocs.org/sdr/HEEA202405230001), May 21, 2024: HYDRAULIC SYSTEM. FLUCTUATES. #1 HYDRAULIC FLUCTUATION, RTB ## Service difficulty reports on N724PH not matched to an aircraft (112, newest 50) They name N724PH, but no registry record covers the date, the aircraft registered then was built later, or the report describes another aircraft. - [SDR HEEA119671](https://openairdocs.org/sdr/HEEA119671), May 12, 2008: ENGINE. MALFUNCTIONED. LOST ENGINE OIL PRESSURE, ENGINE TORQUE, AND THE ENGINE CHIP LIGHT ILLUMINATED. - [SDR HEEA087838](https://openairdocs.org/sdr/HEEA087838), Jun 17, 2003: BATTERY. WEAK. BATTERY WEAK. REPLACED WITH SERVICEABLE PART. - [SDR HEEA087513](https://openairdocs.org/sdr/HEEA087513), Jun 12, 2003: COVER. TORN. FLOAT COVER TORN. TO BE SENT TO VENDOR FOR REPAIR. - [SDR HEEA087507](https://openairdocs.org/sdr/HEEA087507), Jun 12, 2003: RELAY. INOPERATIVE. COCKPIT LIGHT RELAY INOPERATIVE. - [SDR HEEA087502](https://openairdocs.org/sdr/HEEA087502), Jun 12, 2003: SHAFT. ROUGH. BLOWER ASSY HAS A BEARING ROUGH. REPLACED. - [SDR HEEA087485](https://openairdocs.org/sdr/HEEA087485), Jun 12, 2003: RELAY. MALFUNCTIONED. RELAY CAUSING DEGRADE LIGHT. - [SDR HEEA087454](https://openairdocs.org/sdr/HEEA087454), Jun 12, 2003: GYRO. SPINNING. GYRO MODEL200DCL SPINS CONSTANTLY. SCRAPPED. - [SDR HEEA087434](https://openairdocs.org/sdr/HEEA087434), Jun 12, 2003: PRESSURE SWITCH. INTERMITTENT. PRESSURE SWITCH INTERMITTENT. - [SDR HEEA087433](https://openairdocs.org/sdr/HEEA087433), Jun 12, 2003: PRESSURE SWITCH. INTERMITTENT. INTERMITTENT. TO BE SENT TO BELL HELICOPTER TEXTRON. - [SDR HEEA087409](https://openairdocs.org/sdr/HEEA087409), Jun 11, 2003: BEARING. TORN. TAIL ROTOR DRIVE BEARING GREASE SEAL TORN. - [SDR HEEA087402](https://openairdocs.org/sdr/HEEA087402), Jun 11, 2003: BEARING. ROUGH. TAIL ROTOR DRIVE BEARING ROUGH. - [SDR HEEA087401](https://openairdocs.org/sdr/HEEA087401), Jun 11, 2003: BEARING. TORN. TAIL ROTOR BEARING HAS A TORN SEAL. - [SDR HEEA087381](https://openairdocs.org/sdr/HEEA087381), Jun 11, 2003: PANEL. BROKEN. DOOR TRIM PANEL BROKEN. - [SDR HEEA087378](https://openairdocs.org/sdr/HEEA087378), Jun 11, 2003: PANEL. CRACKED. CREW DOOR PANEL CRACKED. - [SDR HEEA087364](https://openairdocs.org/sdr/HEEA087364), Jun 11, 2003: PANEL. BROKEN. CREW DOOR PANEL BROKEN. - [SDR HEEA087352](https://openairdocs.org/sdr/HEEA087352), Jun 11, 2003: EXHAUST STACK. CRACKED. EXHAUST STACK CRACKED. - [SDR HEEA087305](https://openairdocs.org/sdr/HEEA087305), Jun 11, 2003: BEARING. GALLED. TAIL ROTOR FEATHERING BEARINGS GALLED. REPAIRED. - [SDR HEEA087301](https://openairdocs.org/sdr/HEEA087301), Jun 11, 2003: BEARING. WORN. MAIN ROTORO DRIVE ROD END BEARINGS WORN. - [SDR HEEA087833](https://openairdocs.org/sdr/HEEA087833), Jun 9, 2003: BRACKET. BROKEN. SEAT BRACKETS BROKEN. REPLACED WITH SERVICEABLE PART. - [SDR HEEA086975](https://openairdocs.org/sdr/HEEA086975), Jun 3, 2003: STUD. LOOSE. STUD SPINS IN HOUSING. REPLACED. - [SDR HEEA086974](https://openairdocs.org/sdr/HEEA086974), Jun 3, 2003: GAUGE. LEAKING. HYDRAULIC FLUID LEAKING AT GAUGE. REPLACED. - [SDR HEEA086973](https://openairdocs.org/sdr/HEEA086973), Jun 3, 2003: CAP. LOOSE. PIN AT FUEL CAP KEEPS FALLING OUT. REPLACED. - [SDR HEEA084354](https://openairdocs.org/sdr/HEEA084354), Feb 11, 2003: SIGNAL COND UNIT. MALFUNCTIONED. SIGNAL COND UNIT MALFUNCTIONED, LOW LEVEL LIGHT COMES ON. - [SDR HEEA084312](https://openairdocs.org/sdr/HEEA084312), Feb 11, 2003: DISC PACK. CRACKED. TAIL ROTOR DISC PACK CRACKED. - [SDR HEEA083984](https://openairdocs.org/sdr/HEEA083984), Jan 17, 2003: BEARING. WORN. BIPOD MOUNT HAS A WORN BEARING. - [SDR HEEA087870](https://openairdocs.org/sdr/HEEA087870), Jan 16, 2003: SEAL. TORN. TAIL ROTOR DRIVE BLOWER SHAFT BEARING, RUBBER SEAL TORN. REPLACED BEARING. - [SDR HEEA083818](https://openairdocs.org/sdr/HEEA083818), Jan 16, 2003: SWASHPLATE. LEAKING. UNIBALL SATURATED WITH GREASE FROM MAIN ROTOR SWASHPLATE. REPAIRED. - [SDR HEEA083748](https://openairdocs.org/sdr/HEEA083748), Jan 15, 2003: BLEED VALVE. FAILED. HIGH TOT. REPLACED BLEED VALVE. - [SDR HEEA083642](https://openairdocs.org/sdr/HEEA083642), Jan 14, 2003: GYRO. MALFUNCTIONED. DIRECTIONAL GYRO SPINS. REPAIRED. - [SDR HEEA083637](https://openairdocs.org/sdr/HEEA083637), Jan 14, 2003: INDICATOR. PRECESSES. ADI PRECESSES IN FLIGHT. REPAIRED. - [SDR HEEA080204](https://openairdocs.org/sdr/HEEA080204), Jun 26, 2002: PRESSURE SWITCH. FAILED. TRANSMISSION PRESSURE LIGHT INTERMITTENT. - [SDR HEEA080078](https://openairdocs.org/sdr/HEEA080078), Jun 11, 2002: INDICATOR. MALFUNCTIONED. DEPENDENT POSITION DETERMINING SYSTEM DISPLAY REMAINS IN TEST MODE. - [SDR HEEA080066](https://openairdocs.org/sdr/HEEA080066), Jun 11, 2002: FLOAT. LEAKING. RT FWD FLOAT BAG LEAKING THROUGH CHECK VALVE. - [SDR HEEA080018](https://openairdocs.org/sdr/HEEA080018), Jun 10, 2002: ECU. MALFUNCTIONED. HIGH PITCH SCREECHING SOUND AT END OF N1 SPILLDOWN. REPLACED WITH SERVICEABLE PART. - [SDR HEEA080014](https://openairdocs.org/sdr/HEEA080014), Jun 10, 2002: VALVE. LEAKING. LEAKS AND OPENS INTERMITTENTLY. REPLACED WITH SERVICEABLE VALVE. - [SDR HEEA080013](https://openairdocs.org/sdr/HEEA080013), Jun 10, 2002: BLEED VALVE. FAILED. HIGHER THAN NORMAL TOT. REPLACED WITH SERVICEABLE BLEED VALVE. - [SDR HEEA079997](https://openairdocs.org/sdr/HEEA079997), Jun 10, 2002: DUCT. CRACKED. DUCT ASSY CRACKED AT SEAM. - [SDR HEEA079933](https://openairdocs.org/sdr/HEEA079933), Jun 3, 2002: BLEED VALVE. FAILED. ENGINE PRODUCING HIGH MGT. REPLACED WITH SERVICEABLE BLEED VALVE. - [SDR HEEA079929](https://openairdocs.org/sdr/HEEA079929), Jun 3, 2002: TRANSCEIVER. INTERMITTENT. MODE "C" INTERMITTENT AND TWO DIGITS OFF. FOUND KNOB BROKEN. REPLACED FACEPLATE ASSY, REPAIRED. BENCH CHECK GOOD. - [SDR HEEA079382](https://openairdocs.org/sdr/HEEA079382), May 28, 2002: LINK. LOOSE. TAIL ROTOR HUB HAS PLAY IN A PITCH LINK. - [SDR HEEA079380](https://openairdocs.org/sdr/HEEA079380), May 28, 2002: BEARING. WORN. TAIL ROTOR HUB HAS A WORN FEATHERING BEARING. - [SDR HEEA079141](https://openairdocs.org/sdr/HEEA079141), May 23, 2002: MOUNT. CORRODED. CORROSION AT RADIO ANTENNA MOUNT. - [SDR HEEA079049](https://openairdocs.org/sdr/HEEA079049), May 15, 2002: TRANSCEIVER. INTERMITTENT. ATC TRANSCEIVER MODE "C" INTERMITTENT AND TWO DIGITS OFF. IN SHOP FOR REPAIR. - [SDR HEEA078912](https://openairdocs.org/sdr/HEEA078912), May 13, 2002: BEARING. WORN. WORN BEARINGS. - [SDR HEEA078898](https://openairdocs.org/sdr/HEEA078898), May 13, 2002: PRESSURE SWITCH. FAILED. BOOST PUMP CAUTION LIGHT WILL NOT COME ON. REPLACED FAILED PRESSURE SWITCH. - [SDR HEEA078850](https://openairdocs.org/sdr/HEEA078850), May 7, 2002: BELLCRANK. WORN. TAIL ROTOR CONTROL BELLCRANK IS WORN. - [SDR HEEA078843](https://openairdocs.org/sdr/HEEA078843), May 7, 2002: BEARING. WORN. BEARINGS WORN. - [SDR HEEA078839](https://openairdocs.org/sdr/HEEA078839), May 7, 2002: BEARING. WORN. LINK ASSY HAS A WORN BEARING. - [SDR HEEA078838](https://openairdocs.org/sdr/HEEA078838), May 7, 2002: BEARING. WORN. LINK ASSY HAS A WORN BEARING. - [SDR HEEA078829](https://openairdocs.org/sdr/HEEA078829), May 7, 2002: LINK. WORN. LINK ASSY WORN. All 112: https://openairdocs.org/aircraft/N724PH/unmatched-reports.md ## 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-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.