# N669SC: 2006 Robinson Helicopter R44 II - Status: Valid registration - Airframe: [Robinson Helicopter R44 II](https://openairdocs.org/model/robinson-helicopter-r44-ii) (registry code 7640122, 4 seats) - Engine: [Continental IO-540 series](https://openairdocs.org/engine/continental-io-540-series) (registry code 17051) - Data sheets: [TCDS H11NM](https://openairdocs.org/tcds/H11NM) (Robinson Helicopter Company) (OpenAirDocs) - Serial number: 11316 - Year built: 2006 - Type: Rotorcraft - Engine type: Reciprocating - Airworthiness: Standard, normal - Airworthiness date: June 19, 2006 - Certificate issued: October 17, 2007 - Expires: September 30, 2028 - Mode S code: A8D73B - Registered owner: [Transcare Ambulance Services Inc](https://openairdocs.org/faa-owner/TRANSCARE%20AMBULANCE%20SERVICES%20INC) - Location: [Marion, IN](https://openairdocs.org/faa-place/IN/Marion) - Owner type: Corporation - Owner's area on the map: 40.5998° N, 85.6288° W: Placed by OpenAirDocs at the center of ZIP code 46952, within about 6 miles (OpenAirDocs). The owner's mailing address, not where the aircraft is based - FAA registry: https://registry.faa.gov/AircraftInquiry/Search/NNumberResult?nNumberTxt=669SC - Page: https://openairdocs.org/aircraft/N669SC From the FAA registry file of October 22, 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 Continental IO-540 model are included. ## ADs that may apply (OpenAirDocs): 18 in force ### Matched by airframe (Robinson Helicopter R44 II) - [AD 2025-11-07](https://openairdocs.org/ad/2025-11-07): Engine/Transmission Coupling · Robinson Helicopter R44 and R44 II. Effective Jul 11, 2025 - [AD 2024-23-01](https://openairdocs.org/ad/2024-23-01): Main rotor drive system, Rotorcraft flight control · Robinson Helicopter R44 and R44 II. Effective Jan 7, 2025 - [AD 2024-20-07](https://openairdocs.org/ad/2024-20-07): Emergency Equipment; Emergency Flotation Section · Apical Emergency Float Kit, P/N 20498 (STC SR00780LA or 12 others). Effective Dec 5, 2024 - [AD 2024-20-03](https://openairdocs.org/ad/2024-20-03): Flight Control System · Robinson Helicopter R22 BETA, R22 MARINER, R44 and 1 more. Effective Nov 29, 2024 - [AD 2024-04-02](https://openairdocs.org/ad/2024-04-02): Tail Rotor Blades · Robinson Helicopter R22, R22 ALPHA, R22 BETA and 4 more. Effective Apr 2, 2024 - [AD 2023-11-07](https://openairdocs.org/ad/2023-11-07): Ground Proximity System · Airbus Helicopters 47, 206, 210 and 237 more. Effective Jun 22, 2023 - [AD 2022-19-12](https://openairdocs.org/ad/2022-19-12): Tail Rotor Blades · Robinson Helicopter R44, R44 II and R66. Effective Oct 20, 2022 - [AD 2022-12-08](https://openairdocs.org/ad/2022-12-08): Flight Control System Wiring, Engine Control System Wiring, Engine RPM Indicating System · Robinson Helicopter R22 BETA, R44 and R44 II. Effective Jun 29, 2022 - [AD 2020-18-08](https://openairdocs.org/ad/2020-18-08): Engine Air Intake System · Robinson Helicopter R44 II. Effective Aug 27, 2020 - [AD 2020-08-10](https://openairdocs.org/ad/2020-08-10): Tail Rotor Blades · Robinson Helicopter R44 and R44 II. Effective May 22, 2020 - [AD 2020-05-11](https://openairdocs.org/ad/2020-05-11): Agricultural Spray System · Robinson Helicopter R44 and R44 II with STC SR00286BO. Effective Apr 16, 2020 - [AD 2016-26-04](https://openairdocs.org/ad/2016-26-04): Main Rotor Blades · Robinson Helicopter R44, R44 II and R66. Effective Feb 8, 2017 - [AD 2014-23-16](https://openairdocs.org/ad/2014-23-16): Main Rotor Blades · Robinson Helicopter R22, R22 ALPHA, R22 BETA and 3 more. Effective Jan 9, 2015 - [AD 2013-05-15](https://openairdocs.org/ad/2013-05-15): Emergency floats · Robinson Helicopter R44 and R44 II. Effective Apr 30, 2013 - [AD 2010-24-03](https://openairdocs.org/ad/2010-24-03): Tail rotor · Robinson Helicopter R22, R22 ALPHA, R22 BETA and 3 more. Effective Dec 29, 2010 - [AD 2007-11-01](https://openairdocs.org/ad/2007-11-01): Seat belt buckle (buckle) assembly · Robinson Helicopter R44 and R44 II. Effective Jun 27, 2007 - [AD 95-26-05 R1](https://openairdocs.org/ad/95-26-05-R1): R44 Rotorcraft Flight Manual (RFM) · Robinson Helicopter R44 and R44 II. Effective Jul 6, 2004 - [AD 2003-24-51](https://openairdocs.org/ad/2003-24-51): Main rotor swashplate · Robinson Helicopter R44 and R44 II ### Matched by engine (Continental IO-540 series) None in force. ### Historical (superseded or no longer in force) - [AD 2024-19-11](https://openairdocs.org/ad/2024-19-11) (historical): Engine/Transmission coupling · Robinson Helicopter R44 and R44 II. Effective Oct 31, 2024 - [AD 2021-23-13](https://openairdocs.org/ad/2021-23-13) (historical): Ground Proximity System · Airbus Helicopters K-225, K-190A, K-240 and 237 more. Effective Dec 9, 2021 - [AD 2021-19-08](https://openairdocs.org/ad/2021-19-08) (historical): Tail Rotor Blades · Robinson Helicopter R44 and R44 II. Effective Sep 22, 2021 - [AD 2019-12-18](https://openairdocs.org/ad/2019-12-18) (historical): Engine Air Intake System · Robinson Helicopter R44 II. Effective Jul 5, 2019 - [AD 2011-12-10](https://openairdocs.org/ad/2011-12-10) (historical): Main rotor blade · Robinson Helicopter R22, R22 ALPHA, R22 BETA and 3 more. Effective Jul 5, 2011 - [AD 2007-26-12](https://openairdocs.org/ad/2007-26-12) (historical): Blade skin debond · Robinson Helicopter R22, R22 ALPHA, R22 BETA and 3 more. Effective Jan 18, 2008 ## Information bulletins (advisory) (16 in force) - [SAIB 2024-05](https://openairdocs.org/saib/2024-05): Engine/Transmission Coupling, Gearmotor Assembly. Issued Oct 29, 2024 - [SAIB 2022-21](https://openairdocs.org/saib/2022-21): EMERGENCY FLOTATION SECTION, Pop-Out Float Under-inflation.. Issued Nov 21, 2022 - [SAIB AIR-22-08](https://openairdocs.org/saib/AIR-22-08): MAIN ROTOR DRIVE SYSTEM,TAIL ROTOR DRIVE SYSTEM. Issued Apr 11, 2022 - [SAIB AIR-22-03](https://openairdocs.org/saib/AIR-22-03): Robinson Helicopter Company Model R22, R44, and R66 Helicopters; Emergency Locator Transmitter Retention. Issued Mar 3, 2022 - [SAIB AIR-21-14](https://openairdocs.org/saib/AIR-21-14): Robinson R44 and R66 HeliSAS Autopilot/Garmin Primary Flight Display (PFD) Interface. Issued Aug 24, 2021 - [SAIB AIR-21-11](https://openairdocs.org/saib/AIR-21-11): ROTORCRAFT SERVO SYSTEM (JASC 6730). Issued Jul 22, 2021 - [SAIB AIR-21-03](https://openairdocs.org/saib/AIR-21-03): Electrical Power System; Ameri-King RFI DC Filter Smoke/Fire. Issued Jan 28, 2021 - [SAIB SW-15-08R1](https://openairdocs.org/saib/SW-15-08R1): Robinson R44 and R44 Main Rotor Blades. Issued Mar 31, 2015 - [SAIB SW-13-11](https://openairdocs.org/saib/SW-13-11): JASC Code 2810 Fuel Storage Robinson Helicopter Company Bladder Fuel Tank Retrofit. Issued Dec 26, 2012 - [SAIB SW-12-45](https://openairdocs.org/saib/SW-12-45): Garmin Model 400W/500W Series GPS-WAAS Navigation System. Issued Oct 3, 2012 - [SAIB SW-11-15](https://openairdocs.org/saib/SW-11-15): Carbon Monoxide Detectors. Issued Jan 6, 2011 - [SAIB SW-09-36](https://openairdocs.org/saib/SW-09-36): Robinson Helicopter Company Hot Weather Operation. Issued Jun 30, 2009 - [SAIB SW-09-07](https://openairdocs.org/saib/SW-09-07): JASC Code 2410 Alternator-Generator Drive, Robinson Helicopter Company Alternator Belts. Issued Jan 30, 2009 - [SAIB SW-08-16](https://openairdocs.org/saib/SW-08-16): Air Conditioning Wiring Chafing. Issued Apr 2, 2008 - [SAIB SW-07-16](https://openairdocs.org/saib/SW-07-16): Rotor blade skin debonding. Issued Feb 9, 2007 - [SAIB SW-06-19](https://openairdocs.org/saib/SW-06-19): . Issued Dec 28, 2005 - [SAIB SW-15-08](https://openairdocs.org/saib/SW-15-08) (historical): Robinson R44 Main Rotor Blades. Issued Feb 23, 2015 ## NTSB investigations None matched to N669SC. ## FAA accident and incident reports None matched to N669SC. ## 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) (89, first 50) 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 (Robinson Helicopter R44 II) - [STC SR12177IB](https://openairdocs.org/stc/SR12177IB): Installation of Floor Protector. Delastek Inc - [STC SR02420AK](https://openairdocs.org/stc/SR02420AK): Installation of the ZW Aviation LLC R44M-001 Utility Camera Mount. Gyro-Stabilized Systems LLC - [STC SR03403CH](https://openairdocs.org/stc/SR03403CH): Installation of universal internal mount for electrical equipment provisions. STERLING HELICOPTER - [STC SR02270AK](https://openairdocs.org/stc/SR02270AK): Manufacture cargo rack. Larry T. Larrivee - [STC SR02049LA](https://openairdocs.org/stc/SR02049LA): Installation of Apical Industries, Inc. Emergency Float Kits. Apical Industries, Inc. dba Dart Aerospace - [STC SR01980WI](https://openairdocs.org/stc/SR01980WI): Installation of Garmin GI 275 Multi-Function Instrument. Garmin International Inc - [STC SA01435LA](https://openairdocs.org/stc/SA01435LA): Installation of engines modified with Firewall Forward Technologies LLC modified camshaft. Centri-Lube Technologies LLC - [STC SA11137SC](https://openairdocs.org/stc/SA11137SC): Installation of Plane-Power ALT-FLX alternator. Hartzell Engine Technologies, LLC - [STC SR02431AK](https://openairdocs.org/stc/SR02431AK): Installation of the LAM-R44 Portable Device Mount. Airglas Inc - [STC SR03512AT](https://openairdocs.org/stc/SR03512AT): Installation of HID Landing and Taxi Lights. Whelen Aerospace Technologies - [STC SR00578SE](https://openairdocs.org/stc/SR00578SE): Fabrication of Onboard Systems Cargo Hook Kits Model 200-227-00 (without load weigh), Model 200-228-00 (with load weigh), Model 200-313-00 (28V, without load weigh), Model 200-314-00 (28V, with load weigh). Onboard Systems International - [STC SR01064SE](https://openairdocs.org/stc/SR01064SE): Fabrication of Onboard Systems Model 200-265-00 12 Volt Talon LC Keeperless cargo hook kit without load weigh, Model 200-266-00 12 Volt Talon LC Keeperless Cargo hook kit with load weigh, Model 200-288-00 28 Volt Talon LC Keeperless cargo hook kit without load weigh. Onboard Systems International LLC - [STC SR01808SE](https://openairdocs.org/stc/SR01808SE): Installation of Onboard Systems International Cargo Hook Kit. Onboard Systems International - [STC SR04200AT](https://openairdocs.org/stc/SR04200AT): Installation of a Sky Sign Model H-47C Electronic Billboard. SKY SIGN INC - [STC SR02254LA](https://openairdocs.org/stc/SR02254LA): Installation of stability augmentation system and autopilot. S-TEC Corporation - [STC SR02704SE](https://openairdocs.org/stc/SR02704SE): Installation and maintenance of the Sunspot 36 and 46 series lights. AeroLED's Holdings LLC - [STC SR02736LA](https://openairdocs.org/stc/SR02736LA): Installation of Skid Step. Longhorn Aviation Services LLC - [STC SR02991NY](https://openairdocs.org/stc/SR02991NY): The installation of Quick Release Mounting Provisions and Quick Release Cargo Basket. Dart Aerospace Limited - [STC SR03297CH](https://openairdocs.org/stc/SR03297CH): Installation of provisions for external equipment. Certex Aviation LLC - [STC SR02622SE](https://openairdocs.org/stc/SR02622SE): Installation of Garmin G500H TXi Display System (Primary Flight Display (PDF), Multi-Function Display (MFD)). Garmin International Inc - [STC SR02363AK](https://openairdocs.org/stc/SR02363AK): Installation of a fixed mounted Max-Viz® Enhanced Vision System (EVS) Models 100/600 to include a sensor Line Replaceable Unit (LRU) with conformal housing, power supply, and a glareshield-mounted, dedicated display monitor. PECO Inc - [STC SR04411NY](https://openairdocs.org/stc/SR04411NY): Installation of Flight and Operations Data Recorder. EIT Avionics LLC - [STC SR04453CH](https://openairdocs.org/stc/SR04453CH): Installation of Appareo Systems LLC Stratus ES & Stratus ESG ADS-B transponder. Appareo Systems LLC - [STC SR02124SE](https://openairdocs.org/stc/SR02124SE): Installation functionality. of Data Garmin Required: transponders: (1) Garmin GTX Master 345/345R Drawing with List ADS-B (MDL), Out and In 005-00734-A4, functionality;. Garmin International Inc - [STC SR02295LA](https://openairdocs.org/stc/SR02295LA): Installation of Garmin Model G500H Flight Display System. Garmin International Inc - [STC SR02432NY](https://openairdocs.org/stc/SR02432NY): Installation of Helitowcart Bear Paw Models BP350, BP44 or BP130. Dart Aerospace Ltd - [STC SR02521AK](https://openairdocs.org/stc/SR02521AK): Installation of bicycle racks. Robbie Rack LLC - [STC SR00359BO](https://openairdocs.org/stc/SR00359BO): Installation of Parmetheus Plus LED PAR36 and PAR46 taxi and landing lights. Whelen Aerospace Technologies - [STC SR02290AK](https://openairdocs.org/stc/SR02290AK): Manufacture tundra/snow boards, Install and maintain. Pollux Aviation Ltd - [STC SR03080NY](https://openairdocs.org/stc/SR03080NY): Installation of the External Power Receptacle (EGPR). Aero Design Ltd - [STC SR00805NY](https://openairdocs.org/stc/SR00805NY): Manufacture and installation of bearpaws. Northeast Engr & Dev Ltd - [STC SR00387BO](https://openairdocs.org/stc/SR00387BO): Installation of Avidyne 700-00182-XXX IFD5XX and 700-00179-XXX IFD4XX Series Integrated Flight Displays (IFD). Avidyne Corporation - [STC SR02660LA](https://openairdocs.org/stc/SR02660LA): Installation of Nose Utility Mount. Airfilm Camera Systems - [STC SR02506SE](https://openairdocs.org/stc/SR02506SE): Installation of the Collective Pull Down System, installed and maintained. HeliTrak Inc - [STC SA2586NM](https://openairdocs.org/stc/SA2586NM): Installation of J.P. Instruments temperature monitoring systems. J P Instruments - [STC SR09568RC](https://openairdocs.org/stc/SR09568RC): Installation of Tech Tool Plastics replacement doors with full view windows. Tech-Tool Plastics Inc - [STC SR02487AK](https://openairdocs.org/stc/SR02487AK): Installation of L-3 Communications Avionics Systems ESI-500 Standby Instrument System. ADS-B Technologies, LLC - [STC SR03901NY](https://openairdocs.org/stc/SR03901NY): Installation of Replacement Seat Cushion/Backrest and Interior Accessories. Ramm Aerospace Inc - [STC SR03879NY](https://openairdocs.org/stc/SR03879NY): Installation of Replacement Floor Covering Kits. Ramm Aerospace Inc - [STC SR03878NY](https://openairdocs.org/stc/SR03878NY): Installation of Replacement Headliner and Bulkhead Covering Kits. Ramm Aerospace Inc - [STC SR03866NY](https://openairdocs.org/stc/SR03866NY): Installation of LIDAR Anchoring System. Alevia Aeronautique Inc - [STC SR04124CH](https://openairdocs.org/stc/SR04124CH): Installation of Lithium Ion Main Ship Battery. Mid-Continent Instruments and Avionics - [STC SR09868AC](https://openairdocs.org/stc/SR09868AC): Installation of Night Vision Goggle (NVG) Compatible Lighting System. Aero Dynamix Inc - [STC SR00840DE](https://openairdocs.org/stc/SR00840DE): Installation of the Rosen Sunvisor System into the Robinson R22. R44 and R66. Rosen Sunvisor Systems LLC - [STC SR02206SE](https://openairdocs.org/stc/SR02206SE): Installation of Garmin G500H Avionics Display System including GDU 620 PFD/MFD, GRS 77H AHRS, GMU 44 Magnetometer, GDC 74H Air Data Computer, and GTP 59 Temperature Probe. Garmin International Inc - [STC SR02470AK](https://openairdocs.org/stc/SR02470AK): Installation of the L-3 Communications NGT -1000/2000/2500 ADS-B System. ADS-B Technologies, LLC - [STC SR02471AK](https://openairdocs.org/stc/SR02471AK): Installation of the L-3 Communications NGT -9000/9000R ADS-B System. ADS-B Technologies, LLC - [STC SR02429AK](https://openairdocs.org/stc/SR02429AK): Installation of Airglas, Inc. LTB2600 Modular Terrain System. Airglas Inc - [STC SR02394AK](https://openairdocs.org/stc/SR02394AK): Replacement of existing landing and/or hover light bulbs with Light Emitting Diode (LED) lighting system. Seaplanes North LLC - [STC SR09645RC](https://openairdocs.org/stc/SR09645RC): Installation of Cool City Electronics Inc. Automatic Flight Control System (AFCS), Stability Control Augmentation System (SCAS), Yaw Damper System and Orbit Mode. Cool City Electronics Inc. dba Cool City Avionics All 89: https://openairdocs.org/aircraft/N669SC/stcs.md ## Related - Other Robinson Helicopter R44 II aircraft: https://openairdocs.org/model/robinson-helicopter-r44-ii/aircraft.md - The Continental IO-540 series engine: https://openairdocs.org/engine/continental-io-540-series.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.