# N356LL: 2014 Agustawestland Philadelphia AW119MKII - Status: Valid registration - Airframe: [Agustawestland Philadelphia AW119MKII](https://openairdocs.org/model/agustawestland-philadelphia-aw119mkii) (registry code 0260401, 8 seats) - Engine: [Pratt & Whitney Canada PT6B-37A](https://openairdocs.org/engine/pratt-whitney-canada-pt6b-37a) (registry code 52179) - Data sheets: [TCDS H7EU](https://openairdocs.org/tcds/H7EU) (Leonardo S.p.A.), [TCDS E21NE](https://openairdocs.org/tcds/E21NE) (Pratt & Whitney Canada Corp.) (OpenAirDocs) - Serial number: 14824 - Year built: 2014 - Type: Rotorcraft - Engine type: Turbo-shaft - Airworthiness: Standard, normal - Airworthiness date: June 25, 2014 - Certificate issued: July 10, 2014 - Expires: July 31, 2027 - Mode S code: A3FC1C - Registered owners: [Critical Care Services Inc DBA](https://openairdocs.org/faa-owner/CRITICAL%20CARE%20SERVICES%20INC%20DBA), [Life Link III](https://openairdocs.org/faa-owner/LIFE%20LINK%20III) - Location: [Blaine, MN](https://openairdocs.org/faa-place/MN/Blaine) - Owner type: Corporation - Owner's area on the map: 45.1764° N, 93.1839° W: Placed by OpenAirDocs at the center of ZIP code 55449, 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=356LL - Page: https://openairdocs.org/aircraft/N356LL 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. ## ADs that may apply (OpenAirDocs): 30 in force ### Matched by airframe (Agustawestland Philadelphia AW119MKII) - [AD 2026-17-07](https://openairdocs.org/ad/2026-17-07): Main rotor mast/swashplate · Leonardo A109A, A109A II, A109C and 6 more. Effective Oct 2, 2026 - [AD 2025-25-13](https://openairdocs.org/ad/2025-25-13): Powerplant System · Leonardo AW119 MKII and A119. Effective Jan 13, 2026 - [AD 2025-18-01](https://openairdocs.org/ad/2025-18-01): Main Rotor Head · Leonardo A109E, A109S, AW109SP and 2 more. Effective Sep 25, 2025 - [AD 2025-17-10](https://openairdocs.org/ad/2025-17-10): Main Rotor Control · Leonardo A109A, A109A II, A109C and 3 more. Effective Sep 9, 2025 - [AD 2025-09-06](https://openairdocs.org/ad/2025-09-06): Battery/charger system · Leonardo A119 and AW119 MKII. Effective Jun 16, 2025 - [AD 2024-18-01](https://openairdocs.org/ad/2024-18-01): Rotorcraft Flight Control · Leonardo A119 and AW119 MKII. Effective Nov 12, 2024 - [AD 2023-25-08](https://openairdocs.org/ad/2023-25-08): Main Rotor System · Leonardo A109E, A109S, AW109SP and 2 more. Effective Feb 2, 2024 - [AD 2023-17-07](https://openairdocs.org/ad/2023-17-07): Starter-Generator · Leonardo A119 and AW119 MKII. Effective Nov 1, 2023 - [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 2021-21-03](https://openairdocs.org/ad/2021-21-03): Rotorcraft Flight Control, Rotorcraft Servo System · Leonardo A109A, A109A II, A109C and 6 more. Effective Dec 10, 2021 - [AD 2021-20-18](https://openairdocs.org/ad/2021-20-18): Passenger compartment doors · Leonardo AW119 MKII. Effective Nov 3, 2021 - [AD 2021-16-06](https://openairdocs.org/ad/2021-16-06): Tail Rotor Drive Shaft · Leonardo A119 and AW119 MKII. Effective Sep 27, 2021 - [AD 2021-14-14](https://openairdocs.org/ad/2021-14-14): Instrument System Wiring · Leonardo AW119 MKII. Effective Jul 26, 2021 - [AD 2021-03-15](https://openairdocs.org/ad/2021-03-15): Tail Rotor System · Leonardo A119 and AW119 MKII. Effective Apr 1, 2021 - [AD 2020-26-10](https://openairdocs.org/ad/2020-26-10): Placards and markings · Leonardo A119 and AW119 MKII. Effective Feb 1, 2021 - [AD 2020-21-21](https://openairdocs.org/ad/2020-21-21): Main Rotor Head · Leonardo A109E, A109S, A119 and 2 more. Effective Nov 24, 2020 - [AD 2020-15-16](https://openairdocs.org/ad/2020-15-16): Tail Rotor Drive System · Leonardo A109E, A109K2, A109S and 3 more. Effective Aug 27, 2020 - [AD 2018-06-51](https://openairdocs.org/ad/2018-06-51): Main Rotor Mast/Swashplate · Agusta A109A, A109A II, A109C and 6 more. Effective Jun 7, 2018 - [AD 2018-07-02](https://openairdocs.org/ad/2018-07-02): Main Rotor Blades · Agusta A109E, A109S, A119 and 2 more. Effective Apr 13, 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 2015-05-05](https://openairdocs.org/ad/2015-05-05): Main Rotor System · Agusta A109S, A119, AW109SP and 1 more. Effective Apr 23, 2015 - [AD 2014-23-02](https://openairdocs.org/ad/2014-23-02): Main Rotor Gearbox · Agusta A109E, A109K2, A119 and 1 more. Effective Dec 26, 2014 - [AD 2014-11-07](https://openairdocs.org/ad/2014-11-07): Main Rotor System · Agusta A109A, A109A II, A109C and 6 more. Effective Jun 18, 2014 - [AD 2013-20-51](https://openairdocs.org/ad/2013-20-51): Tail rotor system · Agusta A109A, A109A II, A109C and 6 more. Effective Oct 25, 2013 - [AD 2013-19-01](https://openairdocs.org/ad/2013-19-01): Flight Compartment Windows · Agusta A119 and AW119 MKII. Effective Oct 25, 2013 - [AD 2013-09-06](https://openairdocs.org/ad/2013-09-06): Rotors Flight Control · Agusta A119 and AW119 MKII. Effective Jun 20, 2013 - [AD 2010-12-51](https://openairdocs.org/ad/2010-12-51): Tail Rotor Gearbox · Agusta A119 and AW119 MKII. Effective Sep 17, 2010 - [AD 2009-12-07](https://openairdocs.org/ad/2009-12-07): Cargo hook lever · Agusta A109E, A109S, A119 and 1 more. Effective Jul 17, 2009 ### Matched by engine (Pratt & Whitney Canada PT6B-37A) - [AD 2020-18-05](https://openairdocs.org/ad/2020-18-05): Fuel Control/Turbine Engines · Pratt & Whitney Canada PT6B-37A. Effective Oct 7, 2020 - [AD 2019-22-03](https://openairdocs.org/ad/2019-22-03): Turbine Engine Reduction Gear · Pratt & Whitney Canada PT6B-37A. Effective Dec 24, 2019 ### Historical (superseded or no longer in force) - [AD 2021-22-05](https://openairdocs.org/ad/2021-22-05) (historical): Rotorcraft Flight Control · Leonardo A119 and AW119 MKII. Effective Jan 3, 2022 - [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 2020-19-11](https://openairdocs.org/ad/2020-19-11) (historical): Tail Rotor Gearbox · Leonardo A119 and AW119 MKII. Effective Oct 27, 2020 - [AD 2020-13-02](https://openairdocs.org/ad/2020-13-02) (historical): Tail Rotor System · Leonardo A119 and AW119 MKII. Effective Jul 8, 2020 - [AD 2018-07-08](https://openairdocs.org/ad/2018-07-08) (historical): Tail Rotor Drive System · Agusta A109E, A109K2, A109S and 3 more. Effective Apr 26, 2018 - [AD 2014-04-14](https://openairdocs.org/ad/2014-04-14) (historical): Main Rotor System · Agusta A109S, A119, AW109SP and 1 more. Effective Apr 7, 2014 - [AD 2010-15-51](https://openairdocs.org/ad/2010-15-51) (historical): Rotors Flight Control · Agusta A119 and AW119 MKII. Effective Sep 2, 2010 - [AD 2015-20-04](https://openairdocs.org/ad/2015-20-04) (historical): Reduction gearbox (RGB) assembly · Pratt & Whitney Canada PT6B-37A. Effective Nov 18, 2015 ## Information bulletins (advisory) (2 in force) - [SAIB SW-18-13](https://openairdocs.org/saib/SW-18-13): Main Transmission Plate Fitting. Issued Apr 30, 2018 - [SAIB SW-12-45](https://openairdocs.org/saib/SW-12-45): Garmin Model 400W/500W Series GPS-WAAS Navigation System. Issued Oct 3, 2012 ## NTSB investigations None matched to N356LL. ## FAA accident and incident reports None matched to N356LL. ## 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 QMLA2018012318005](https://openairdocs.org/sdr/QMLA2018012318005), Jan 23, 2018: FITTING. CRACKED. FOUND CRACKED RT TRANSMISSION FITTING P/N 109-0330-17-106 DURING 800 HOUR INSPECTION. ## STCs that may be installed (OpenAirDocs) (58, 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 (Agustawestland Philadelphia AW119MKII) - [STC SR12441MC](https://openairdocs.org/stc/SR12441MC): Installation of exterior NVIS compatible formation lights. Leonardo Helicopters US Corporation - [STC SR02520AK](https://openairdocs.org/stc/SR02520AK): Installation of Avionics and auxiliary generator (Configurations A1, A2, A3, E1, D1, X) for certification of Single Pilot Instrument Flight Rules (SPIFR) Operations. Leonardo Helicopters US Corporation - [STC SR03280NY](https://openairdocs.org/stc/SR03280NY): Installation of a Garmin G1000H PFD/MFD Display System. Leonardo Helicopters US Corporation - [STC SR04231NY](https://openairdocs.org/stc/SR04231NY): Installation of the Utility Installations, ID No. AWPC-ENG-17-037-A1 through AWPC-ENG-17-037-A27. Leonardo Helicopters US Corporation - [STC SR04601NY](https://openairdocs.org/stc/SR04601NY): Installation of a crash resistant fuel system (CRFS) and optional closed circuit refueling receiver (CCRR). Leonardo Helicopters US Corporation - [STC SR04464NY](https://openairdocs.org/stc/SR04464NY): Installation of the iPad Mount. Avio Design Group Inc - [STC SR04842NY](https://openairdocs.org/stc/SR04842NY): Installation of RMCI Inc. Expandable Rotorcraft Diagnostic System (XRDS). Sterling Helicopter - [STC SR00824DE](https://openairdocs.org/stc/SR00824DE): Installation of an Emergency Medical Services Interior and alternate cabin seating interior configurations. AMS Heli Design - [STC SR03201CH](https://openairdocs.org/stc/SR03201CH): Installation of Heli-Preheat System, P/N 2862-1 for 115 volt application. Hartzell Propeller LLC - [STC SR04838NY](https://openairdocs.org/stc/SR04838NY): Installation of optional recording system under Configuration A1, which consists of L3Harris Modular Airborne Data recording/Acquisition Systems (MADRAS) Cockpit Voice and Data Recorder (CVDR) system. AgustaWestland Philadelphia Corporation (AWPC) - [STC SR02454LA](https://openairdocs.org/stc/SR02454LA): Installation of Essex Cryogenics LOX System. M7 Aerospace LLC - [STC SR04557AT](https://openairdocs.org/stc/SR04557AT): Cabin and crew floor protector installations. Helifab East LLC - [STC SR01392LA](https://openairdocs.org/stc/SR01392LA): Installation of Apical Industries, Inc. Emergency Float Kits. Dart Aerospace ULC - [STC SR00463DE](https://openairdocs.org/stc/SR00463DE): Installation of Cabin Air Conditioning System. Air Comm Corporation - [STC SR04007AT](https://openairdocs.org/stc/SR04007AT): Replace original equipment Nickel-Cadmium (NiCd) or Concorde Lead-Acid main battery with higher capacity Concorde Lead-Acid, main battery on Agusta A119 and AW119 MKII rotorcraft and associated hardware. Concorde Battery Corporation - [STC SR04601 NY](https://openairdocs.org/stc/SR04601%20NY): Installation of a crash resistant fuel system (CRFS). AgustaWestland Philadelphia Corporation - [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 SR00949SE](https://openairdocs.org/stc/SR00949SE): Fabrication of Dart D119-647-011 Bearpaws. Dart Aerospace USA 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 SR04441NY](https://openairdocs.org/stc/SR04441NY): Installation of Night Vision Goggle (NVG) Compatible Lighting System, Configuration A. AgustaWestland Philadelphia Corporation - [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 SR00814DE](https://openairdocs.org/stc/SR00814DE): Installation of Garmin Helicopter Terrain Awareness and Warning System (HTAWS). Cert Works LLC - [STC SR02894CH](https://openairdocs.org/stc/SR02894CH): Install EMS ITS Deck with the Factory EMS Interior. Spectrum Aeromed LLC dba Spectrum Aeromed - [STC SR00948SE](https://openairdocs.org/stc/SR00948SE): Fabrication of Dart D119-675-011 and -012 Heli-Access-Steps. Dart Aerospace USA Inc - [STC SR01043SE](https://openairdocs.org/stc/SR01043SE): Fabrication of Dart D119-696-011/013 cargo mirrors and installation of system. Dart Aerospace USA Inc - [STC SR02024SE](https://openairdocs.org/stc/SR02024SE): Fabrication of DART D119-646 Replacement Skidtube Installation. Dart Aerospace USA Inc - [STC SR02258SE](https://openairdocs.org/stc/SR02258SE): Installation of a tail rotor pedal lockout kit. Dart Aerospace USA Inc - [STC SR04230NY](https://openairdocs.org/stc/SR04230NY): Installation of a TRAKKA A800 Searchlight. AgustaWestland Philadelphia Corporation - [STC SR02377AK](https://openairdocs.org/stc/SR02377AK): Installation of a fixed mounted Max-Viz Enhanced Vision System (EVS) Model 1500 to include a sensor Line Replaceable Unit (LRU) with conformal housing, power supply, Detached Electrical Box (DEB) and a glareshield-mounted, dedicated display monitor. Avio Design Group Inc - [STC SR00860DE](https://openairdocs.org/stc/SR00860DE): Installation of Teledyne Battery Products Valve-Regulated Lead-Acid. Teledyne Battery Products - [STC SR03055CH](https://openairdocs.org/stc/SR03055CH): Installation of Flight Data Monitoring System. MSP Aero LLC - [STC SR02789NY](https://openairdocs.org/stc/SR02789NY): Installation of a Border Guard Configuration. AgustaWestland Philadelphia Corporation - [STC SR00812DE](https://openairdocs.org/stc/SR00812DE): Installation of Honeywell Sky Connect Tracker III system. Cert Works 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 SR01651NY](https://openairdocs.org/stc/SR01651NY): The installation of a Super Night Searchlight. AgustaWestland Philadelphia Corporation - [STC SR02428NY](https://openairdocs.org/stc/SR02428NY): The installation of High Visibility Crew Doors. AgustaWestland Philadelphia Corporation - [STC SR03504NY](https://openairdocs.org/stc/SR03504NY): Installation of Crosstube. Dart Aerospace Limited - [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 SR03478NY](https://openairdocs.org/stc/SR03478NY): Modification of EMS interior to allow primary litter to be installed diagonally across the cabin. AgustaWestland Philadelphia Corporation - [STC SR02425LA](https://openairdocs.org/stc/SR02425LA): Installation of Apical Industries, Inc. Cable Cutters Kit. Apical Industries, Inc. dba Dart Aerospace - [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 SR02265NY](https://openairdocs.org/stc/SR02265NY): Installation of Pedal Extensions. AgustaWestland Philadelphia Corporation - [STC SR02135NY](https://openairdocs.org/stc/SR02135NY): Helicopter configured with pilot and crew doors removed. AgustaWestland Philadelphia Corporation - [STC SR02239NY](https://openairdocs.org/stc/SR02239NY): The installation of a Spectrolab SX-16 Searchlight. AgustaWestland Philadelphia Corporation - [STC SR09360RC](https://openairdocs.org/stc/SR09360RC): Installation of Concorde Battery Model RG-407, Valve regulated sealed lead acid battery. Concorde Battery Corporation - [STC SR03027NY](https://openairdocs.org/stc/SR03027NY): Installation of an External ITT and Torque Indicating System. Aero-Dyne Repair Services Ltd - [STC SR02139SE](https://openairdocs.org/stc/SR02139SE): Fabrication of Onboard Systems Model 200-355-00 and 200-369-00 Cargo Hook Fixed Provision Kits, Model 200-356-00 Cargo Hook Suspension Kit, and Model 200-357-00 Load Weigh Kit, in accordance with FAA Approved Onboard Systems Master Drawing List No. 155-160-00, Revision 2, dated September 27, 2011, or later FAA approved revision. Installation of the Onboard Systems Model 200-355-00, 200-356-00, 200-357-00, or 200-369-00 kits in accordance with FAA approved Onboard Systems Owners Manual 120-141-00, Revision 0, dated April 25, 2011, or later FAA approved revision. This modification must be inspected and maintained in accordance with section ATA 5 of FAA approved Onboard Systems Instructions for Continued Airworthiness Document 123-036-00, Revision 0, dated May 5, 2011, or later FAA approved revision, and Onboard Systems Cargo Hook. Onboard Systems International All 58: https://openairdocs.org/aircraft/N356LL/stcs.md ## Related - Other Agustawestland Philadelphia AW119MKII aircraft: https://openairdocs.org/model/agustawestland-philadelphia-aw119mkii/aircraft.md - The Pratt & Whitney Canada PT6B-37A engine: https://openairdocs.org/engine/pratt-whitney-canada-pt6b-37a.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.