# N307DC: Agusta AGUSTA A109 - Status: Valid registration - Airframe: [Agusta AGUSTA A109](https://openairdocs.org/model/agusta-agusta-a109) (registry code 0260109, 8 seats) - Data sheets: [TCDS H7EU](https://openairdocs.org/tcds/H7EU) (Leonardo S.p.A.) (OpenAirDocs) - Serial number: 7223 - Type: Rotorcraft - Engine type: Turbo-shaft - Certificate issued: March 6, 2025 - Expires: March 31, 2032 - Mode S code: A339A1 - Registered owner: [Itb Sokolowski LLC](https://openairdocs.org/faa-owner/ITB%20SOKOLOWSKI%20LLC) - Location: [Lewes, DE](https://openairdocs.org/faa-place/DE/Lewes) - Owner type: LLC - Owner's area on the map: 38.7287° N, 75.1685° W: Placed by OpenAirDocs at the center of ZIP code 19958, 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=307DC - Page: https://openairdocs.org/aircraft/N307DC 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): 12 in force ### Matched by airframe (Agusta AGUSTA A109) - [AD 2025-07-01](https://openairdocs.org/ad/2025-07-01): Air Data Computer · Synthetic Vision Electronic Flight Information System (Arrow STC SR09595RC or ST01523WI). Effective May 15, 2025 - [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 2023-01-02](https://openairdocs.org/ad/2023-01-02): Emergency Equipment · Apical Industries, Inc. Emergency Float Kit (STC SR01812LA). Effective Feb 17, 2023 - [AD 2022-05-10](https://openairdocs.org/ad/2022-05-10): Cabin Equipment/Furnishings · Airbus Helicopters AS332L, AS332L1, AS332L2 and 57 more. Effective Apr 20, 2022 - [AD 2018-16-01](https://openairdocs.org/ad/2018-16-01): Equipment · B/E Aerospace Fischer A109, AW169, Attendant seats NG and 1 more. Effective Aug 31, 2018 - [AD 2015-05-52](https://openairdocs.org/ad/2015-05-52): Tail Rotor Controls · Agusta A109, A109A, A109A II and 7 more. Effective Apr 29, 2015 - [AD 2013-06-51](https://openairdocs.org/ad/2013-06-51): Equipment/Furnishings · Agusta A109, A109A, A109A II and 43 more. Effective Jul 15, 2013 - [AD 2013-05-22](https://openairdocs.org/ad/2013-05-22): Tail rotor pitch control link assembly · Agusta A109, A109A, A109A II and 5 more. Effective Apr 30, 2013 - [AD 2002-20-05](https://openairdocs.org/ad/2002-20-05): Rescue hoists · Agusta A109, A109A, A109A II and 31 more. Effective Nov 7, 2002 - [AD 81-02-04](https://openairdocs.org/ad/81-02-04): Main Blade Pitch Control · Agusta A109, A109A and A109A II. Effective Jan 5, 1981 - [AD 79-02-04](https://openairdocs.org/ad/79-02-04): Tail Rotor Drive Shaft · Agusta A109, A109A, A109 and 3 more. Effective Feb 19, 1979 - [AD 78-24-02](https://openairdocs.org/ad/78-24-02): Main Transmission · Agusta A109, A109A, A109A II and 3 more. Effective Nov 24, 1978 ### Historical (superseded or no longer in force) - [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 ## Information bulletins (advisory) (2 in force) - [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-03-44](https://openairdocs.org/saib/SW-03-44): . Issued Jun 20, 2003 ## NTSB investigations None matched to N307DC. ## FAA accident and incident reports None matched to N307DC. ## 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) (38) 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 (Agusta AGUSTA A109) - [STC SR04842NY](https://openairdocs.org/stc/SR04842NY): Installation of RMCI Inc. Expandable Rotorcraft Diagnostic System (XRDS). Sterling Helicopter - [STC SR00182IB](https://openairdocs.org/stc/SR00182IB): Installation of the Avidyne Integrated Flight Display (IFD) Navigator(s). Horizon Design Services Ltd - [STC SH3319NM](https://openairdocs.org/stc/SH3319NM): Installation of Precise Flight Pulselite Control Unit in the Landing /Taxi Recognition Visual Control Light system,. Precise Flight Inc - [STC SR04557AT](https://openairdocs.org/stc/SR04557AT): Cabin and crew floor protector installations. Helifab East LLC - [STC SR02704SE](https://openairdocs.org/stc/SR02704SE): Installation and maintenance of the Sunspot 36 and 46 series lights. AeroLED's Holdings LLC - [STC SR01476SE](https://openairdocs.org/stc/SR01476SE): Installation of a Supplemental Lighting System. Aviation Specialties Unlimited Inc - [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 SR04390CH](https://openairdocs.org/stc/SR04390CH): Installation of an Electronic Flight Instrument System (EFIS) in accordance with StandardAero Master Data List 1036284, Revision (B), dated June 5, 2019 or later FAA approved revision. StandardAero Business Aviation Services LLC - [STC SR00359BO](https://openairdocs.org/stc/SR00359BO): Installation of Parmetheus Plus LED PAR36 and PAR46 taxi and landing lights. Whelen Aerospace Technologies - [STC SR01812LA](https://openairdocs.org/stc/SR01812LA): Installation of Apical Industries, Inc. Emergency Float Kit. Apical Industries Inc. dba Dart Aerospace - [STC SR02257CH](https://openairdocs.org/stc/SR02257CH): Install air ambulance conversion. Snaky Creek Enterprises LLC dba Spectrum Aeromed - [STC SR00828DE](https://openairdocs.org/stc/SR00828DE): Installation of Automatic Dependent Surveillance Broadcast (ADS-B) Out functionality using the Garmin G330ES or G33H ES Transponder and qualified position sensor. Peregrine - [STC SR02258SE](https://openairdocs.org/stc/SR02258SE): Installation of a tail rotor pedal lockout kit. Dart Aerospace USA Inc - [STC SR03055CH](https://openairdocs.org/stc/SR03055CH): Installation of Flight Data Monitoring System. MSP Aero LLC - [STC SR02487AK](https://openairdocs.org/stc/SR02487AK): Installation of L-3 Communications Avionics Systems ESI-500 Standby Instrument System. ADS-B Technologies, LLC - [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 SR01124NY-D](https://openairdocs.org/stc/SR01124NY-D): Installation of an Aeromedical Liquid Oxygen System. Sikorsky Aircraft Corporation - [STC SH4676SW](https://openairdocs.org/stc/SH4676SW): Installation of Tail Rotor Floodlights on the upper surface of the horizontal stabilizer. DeVore Aviation Corporation of America, a New Mexico Corporation - [STC SH2458SO](https://openairdocs.org/stc/SH2458SO): Installation of FLIR Systems, Inc., Model 2000/2500 Series Thermal Imager System. Bell Helicopter Textron Inc - [STC SR02232LA](https://openairdocs.org/stc/SR02232LA): Installation of Garmin Model 400W / 500W Series GPS-WAAS Navigation System. Garmin AT Inc - [STC SR01963AT](https://openairdocs.org/stc/SR01963AT): Manufacture of Replacement Windshields. Bell Helicopter Textron Inc - [STC SH1190EA](https://openairdocs.org/stc/SH1190EA): Installation of Aircraft Parts Corp. (APC) starter-generator, P/N 150SG1110. Skurka Aerospace Inc - [STC SR00677DE](https://openairdocs.org/stc/SR00677DE): Installation of fixed receivers for ground handling blade folding kit. Paravion Technology Inc - [STC SR01905SE](https://openairdocs.org/stc/SR01905SE): ONE ONLY STC, SN 7606: Installation of a Supplemental Lighting System. Aviation Specialties Unlimited Inc - [STC SR01906SE](https://openairdocs.org/stc/SR01906SE): ONE ONLY STC, SN 7153: Installation of a Supplemental Lighting System. Aviation Specialties Unlimited Inc - [STC SR01901SE](https://openairdocs.org/stc/SR01901SE): ONE ONLY STC, SN 7185: Installation of a Supplemental Lighting System. Aviation Specialties Unlimited Inc - [STC SR01902SE](https://openairdocs.org/stc/SR01902SE): ONE ONLY STC, S/N 7205: Installation of a Supplemental Lighting System. Aviation Specialties Unlimited Inc - [STC SR01904SE](https://openairdocs.org/stc/SR01904SE): ONE ONLY STC, SN 7155: Installation of a Supplemental Lighting System. Aviation Specialties Unlimited Inc - [STC SH3754SW](https://openairdocs.org/stc/SH3754SW): Installation of DeVore forward facing recognition lights. DeVore Aviation Corporation of America, a New Mexico Corporation - [STC SH3533NM](https://openairdocs.org/stc/SH3533NM): Cockpit sun visor installation. Rosen Sunvisor Systems LLC - [STC SH3811NM](https://openairdocs.org/stc/SH3811NM): Install a combination attendant seat and patient litter kit assembly. Aero Credit Company Inc - [STC SR01844AT](https://openairdocs.org/stc/SR01844AT): Installation of Tail Rotor Pedal Lockout Kit. Bell Helicopter Textron Inc - [STC SH638NE](https://openairdocs.org/stc/SH638NE): Installation of Parker Model 2C35-3 fuel tank mounted auxiliary fuel boost pumps to be used interchangeably with the standard Agusta P/N 109-0611-53-1 electric fuel pumps. Parker Hannifin Corp - [STC SR09200RC](https://openairdocs.org/stc/SR09200RC): Installation of a rotor dynamics americas, inc RDA 3303 airborne vibration Monitoring system. Rotor Dynamics Americas - [STC SH359NE](https://openairdocs.org/stc/SH359NE): Installation of advanced vapor cycle air conditioning system. Advanced Flight System, Inc - [STC SH448NE](https://openairdocs.org/stc/SH448NE): Installation of Bendix Model MLS-20A microwave landing system. MSI - [STC SH163NE](https://openairdocs.org/stc/SH163NE): Installation of emergency medical service quick change kit. Agusta Aviation Corporation ## Earlier aircraft with N307DC The FAA can reassign an N-number once a registration is cancelled. These aircraft carried N307DC before. - [Cancelled 2019-07-17](https://openairdocs.org/deregistered/N307DC-2019-07-17): Robinson Helicopter R44 II, S/N 11181, built 2006. Exported to Canada. Owner: [Rs Aviation Services](https://openairdocs.org/faa-owner/RS%20AVIATION%20SERVICES), [Simi Valley, CA](https://openairdocs.org/faa-place/CA/Simi%20Valley) ## Related - Other Agusta AGUSTA A109 aircraft: https://openairdocs.org/model/agusta-agusta-a109/aircraft.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.