# N418AV: 1977 Dehavilland DHC-6-300 - Status: Valid registration - Airframe: [Dehavilland DHC-6-300](https://openairdocs.org/model/dehavilland-dhc-6-300) (registry code 2802630, 22 seats) - Engine: [Pratt & Whitney PT6A-27 series](https://openairdocs.org/engine/pratt-whitney-pt6a-27-series) (registry code 52141) - Data sheets: [TCDS A9EA](https://openairdocs.org/tcds/A9EA) (De Havilland Aircraft of Canada Limited) (OpenAirDocs) - Serial number: 521 - Year built: 1977 - Type: Fixed wing multi engine - Engine type: Turbo-prop - Airworthiness: Standard, normal - Airworthiness date: July 15, 2016 - Certificate issued: June 7, 2016 - Expires: June 30, 2029 - Mode S code: A4F1EC - Registered owner: [Wells Fargo Trust Co Na Trustee](https://openairdocs.org/faa-owner/WELLS%20FARGO%20TRUST%20CO%20NA%20TRUSTEE) - Location: [Columbia, MD](https://openairdocs.org/faa-place/MD/Columbia) - Owner type: Corporation - Owner's area on the map: 39.2060° N, 76.8282° W: Placed by OpenAirDocs at the center of ZIP code 21045, within about 2 miles (OpenAirDocs). The owner's mailing address, not where the aircraft is based - FAA registry: https://registry.faa.gov/AircraftInquiry/Search/NNumberResult?nNumberTxt=418AV - Page: https://openairdocs.org/aircraft/N418AV 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 Pratt & Whitney PT6A-27 model are included. ## ADs that may apply (OpenAirDocs): 70 in force ### Matched by airframe (Dehavilland DHC-6-300) - [AD 2023-10-02](https://openairdocs.org/ad/2023-10-02): Indicating/Recording System, Navigation · Boeing 18, 23, 35 and 1,060 more. Effective May 26, 2023 - [AD 2022-11-12](https://openairdocs.org/ad/2022-11-12): Engine Controls · Viking Air DHC-6-1, DHC-6-100, DHC-6-200 and 2 more. Effective Jul 13, 2022 - [AD 2022-11-09](https://openairdocs.org/ad/2022-11-09): Wing Structure · Viking Air DHC-6-1, DHC-6-100, DHC-6-200 and 2 more. Effective Jul 6, 2022 - [AD 2022-10-07](https://openairdocs.org/ad/2022-10-07): Flight Control System · Viking Air DHC-6-1, DHC-6-100, DHC-6-200 and 2 more. Effective Jun 23, 2022 - [AD 2022-10-03](https://openairdocs.org/ad/2022-10-03): Flight Control System · Viking Air DHC-6-1, DHC-6-100, DHC-6-200 and 2 more. Effective Jun 23, 2022 - [AD 2022-03-04](https://openairdocs.org/ad/2022-03-04): Time Limits · Viking Air DHC-6-1, DHC-6-100, DHC-6-200 and 2 more. Effective Mar 17, 2022 - [AD 2019-10-05](https://openairdocs.org/ad/2019-10-05): Flight Controls · Viking Air DHC-6-1, DHC-6-100, DHC-6-200 and 2 more. Effective Jun 20, 2019 - [AD 2018-04-02](https://openairdocs.org/ad/2018-04-02): Flight Controls · Viking Air DHC-6-1, DHC-6-100, DHC-6-200 and 2 more. Effective Mar 27, 2018 - [AD 2009-04-09](https://openairdocs.org/ad/2009-04-09): Wing front spar adapter · Viking Air DHC-6-1, DHC-6-100, DHC-6-200 and 1 more. Effective Mar 26, 2009 - [AD 2008-24-01](https://openairdocs.org/ad/2008-24-01): Flight control gust locks · Viking Air DHC-6-1, DHC-6-100, DHC-6-200 and 1 more. Effective Dec 30, 2008 - [AD 2008-13-11](https://openairdocs.org/ad/2008-13-11): Corrosion · Viking Air DHC-6-1, DHC-6-100, DHC-6-200 and 1 more. Effective Aug 5, 2008 - [AD 2006-16-18 R1](https://openairdocs.org/ad/2006-16-18-R1): Installing a warning placard on the TAWS/RMI · Airbus A300 B2-1A, A300 B2-1C, A300 B2-203 and 100 more. Effective Jul 18, 2008 - [AD 2005-25-08](https://openairdocs.org/ad/2005-25-08): Electronic Flight Information System (EFIS) · B-N Group BN-2A, 172, 180 and 22 more. Effective Jan 23, 2006 - [AD 2005-18-20](https://openairdocs.org/ad/2005-18-20): "FASTprop" propeller de-icers · Hartzell PHC-C3YF-1RF/F8468A(B,K)-8R constant speed propeller (STC SA00718LA or 17 others). Effective Oct 14, 2005 - [AD 2005-01-19](https://openairdocs.org/ad/2005-01-19): Mode S transponders · GARMIN International GTX 330D, GTX 330, GTX 33D and 830 more. Effective Feb 23, 2005 - [AD 2000-06-03](https://openairdocs.org/ad/2000-06-03): Pneumatic Deicing Boots · Viking Air DHC-6-1, DHC-6-100, DHC-6-200 and 1 more. Effective May 5, 2000 - [AD 98-25-02](https://openairdocs.org/ad/98-25-02): Top-mounted Antenna · Bell Helicopter Textron Canada 407, 172, 172A and 243 more. Effective Dec 22, 1998 - [AD 97-23-09](https://openairdocs.org/ad/97-23-09): Inspect Fuselage Side Frames for Cracks · Viking Air DHC-6-1, DHC-6-100, DHC-6-200 and 1 more. Effective Dec 22, 1997 - [AD 97-07-10 R1](https://openairdocs.org/ad/97-07-10-R1): Wing Struts · Viking Air DHC-6-1, DHC-6-100, DHC-6-200 and 1 more. Effective May 23, 1997 - [AD 96-09-11](https://openairdocs.org/ad/96-09-11): Airplane Flight Manual (AFM) - Icing · Viking Air DHC-6-1, DHC-6-100, DHC-6-200 and 1 more. Effective Jun 11, 1996 - [AD 95-22-07](https://openairdocs.org/ad/95-22-07): Horizontal Stabilizer Attachment Fittings · Viking Air DHC-6-1, DHC-6-100, DHC-6-200 and 1 more. Effective Dec 27, 1995 - [AD 95-21-14](https://openairdocs.org/ad/95-21-14): Tailplane Outboard Hinge Arm Assembly · Viking Air DHC-6-1, DHC-6-100, DHC-6-200 and 1 more. Effective Dec 4, 1995 - [AD 95-18-11](https://openairdocs.org/ad/95-18-11): Wing Rear Spar Attachment Caps · Viking Air DHC-6-1, DHC-6-100, DHC-6-200 and 1 more. Effective Oct 26, 1995 - [AD 95-18-10](https://openairdocs.org/ad/95-18-10): Elevator Root Rib · Viking Air DHC-6-1, DHC-6-100, DHC-6-200 and 1 more. Effective Oct 26, 1995 - [AD 94-14-22](https://openairdocs.org/ad/94-14-22): Elevator Control Support · Viking Air DHC-6-1, DHC-6-100, DHC-6-200 and 1 more. Effective Aug 31, 1994 - [AD 94-08-10](https://openairdocs.org/ad/94-08-10): Wing Main Spar · Viking Air DHC-6-1, DHC-6-100, DHC-6-200 and 1 more. Effective Jun 13, 1994 - [AD 94-04-01](https://openairdocs.org/ad/94-04-01): Wing Attachment Fittings · Viking Air DHC-6-1, DHC-6-100, DHC-6-200 and 1 more. Effective Mar 31, 1994 - [AD 93-10-08](https://openairdocs.org/ad/93-10-08): Controls in Overhead Control Console · Viking Air DHC-6-1, DHC-6-100, DHC-6-200 and 1 more. Effective Jul 16, 1993 - [AD 93-02-04](https://openairdocs.org/ad/93-02-04): Elevator Support Assembly · Viking Air DHC-6-1, DHC-6-100, DHC-6-200 and 1 more. Effective Mar 19, 1993 - [AD 90-11-01](https://openairdocs.org/ad/90-11-01): Elevator Pushrod Assembly · Viking Air DHC-6-1, DHC-6-100, DHC-6-200 and 1 more. Effective Nov 16, 1990 - [AD 87-04-23](https://openairdocs.org/ad/87-04-23): Wing Support Strut · Viking Air DHC-6-1, DHC-6-100, DHC-6-200 and 1 more. Effective Mar 16, 1987 - [AD 87-03-12](https://openairdocs.org/ad/87-03-12): Utility Seat - Forward Legs · Viking Air DHC-6-1, DHC-6-100, DHC-6-200 and 1 more. Effective Feb 13, 1987 - [AD 80-13-11 R2](https://openairdocs.org/ad/80-13-11-R2): Rod Assemblies · Viking Air DHC-6-1, DHC-6-100, DHC-6-200 and 1 more. Effective Aug 10, 1983 - [AD 82-26-06](https://openairdocs.org/ad/82-26-06): Windscreen Washer/Deicing System · Viking Air DHC-6-1, DHC-6-100, DHC-6-200 and 1 more. Effective Dec 27, 1982 - [AD 81-22-03](https://openairdocs.org/ad/81-22-03): Elevator Torque Tube · Viking Air DHC-6-1, DHC-6-100, DHC-6-200 and 1 more. Effective Nov 2, 1981 - [AD 69-05-01 R2](https://openairdocs.org/ad/69-05-01-R2): Control Column Sub-assembly Cracks · Viking Air DHC-6-1, DHC-6-100, DHC-6-200 and 1 more. Effective Jul 7, 1980 - [AD 80-13-13](https://openairdocs.org/ad/80-13-13): Struts · Viking Air DHC-6-1, DHC-6-100, DHC-6-200 and 1 more. Effective Jul 1, 1980 - [AD 80-03-08](https://openairdocs.org/ad/80-03-08): Flap Control Rod Tubes · Viking Air DHC-6-1, DHC-6-100, DHC-6-200 and 1 more. Effective Feb 7, 1980 - [AD 79-14-01](https://openairdocs.org/ad/79-14-01): Elevator Control System · Viking Air DHC-6-1, DHC-6-100, DHC-6-200 and 1 more. Effective Jul 6, 1979 - [AD 78-01-05](https://openairdocs.org/ad/78-01-05): Electrical Failure · Viking Air DHC-6-1, DHC-6-100, DHC-6-200 and 1 more. Effective Feb 9, 1978 - [AD 76-13-06](https://openairdocs.org/ad/76-13-06): Lightning Protection · Viking Air DHC-6-1, DHC-6-100, DHC-6-200 and 1 more. Effective Jul 6, 1976 - [AD 76-07-08](https://openairdocs.org/ad/76-07-08): Water Leakage-float Models · Viking Air DHC-6-1, DHC-6-100, DHC-6-200 and 1 more. Effective Apr 12, 1976 - [AD 75-26-07](https://openairdocs.org/ad/75-26-07): Electrical Fire Hazards · Viking Air DHC-6-1, DHC-6-100, DHC-6-200 and 1 more. Effective Dec 17, 1975 - [AD 75-24-15](https://openairdocs.org/ad/75-24-15): AC Power · Viking Air DHC-6-1, DHC-6-100, DHC-6-200 and 1 more. Effective Nov 28, 1975 - [AD 75-12-10](https://openairdocs.org/ad/75-12-10): Autopilots · M7 Aerospace 60, 95-C55, 95-C55A and 17 more. Effective Jun 11, 1975 - [AD 75-08-02](https://openairdocs.org/ad/75-08-02): Aileron Control Cable · Viking Air DHC-6-1, DHC-6-100, DHC-6-200 and 1 more. Effective Apr 7, 1975 - [AD 74-22-06](https://openairdocs.org/ad/74-22-06): Horizontal Stabilizer · Viking Air DHC-6-1, DHC-6-100, DHC-6-200 and 1 more. Effective Oct 23, 1974 - [AD 74-08-11](https://openairdocs.org/ad/74-08-11): Side Seat Rail Attachment · Viking Air DHC-6-1, DHC-6-100, DHC-6-200 and 1 more. Effective Apr 18, 1974 - [AD 73-19-01](https://openairdocs.org/ad/73-19-01): Prop Auto-feathering System · Viking Air DHC-6-100, DHC-6-200 and DHC-6-300 with STC SA2608WE. Effective Feb 18, 1974 - [AD 73-20-05](https://openairdocs.org/ad/73-20-05): Float To Fuselage Bolts · Viking Air DHC-6-1, DHC-6-100, DHC-6-200 and 1 more. Effective Oct 3, 1973 ### Matched by engine (Pratt & Whitney PT6A-27 series) - [AD 2014-11-05](https://openairdocs.org/ad/2014-11-05): Reinforcement liner to the power turbine (PT) containment ring and, for certain PT containment rings, adding scallops · Pratt & Whitney Canada PT6A-11, PT6A-110, PT6A-112 and 18 more. Effective Aug 5, 2014 - [AD 2011-25-12](https://openairdocs.org/ad/2011-25-12): Sun gear · Pratt & Whitney Canada PT6A-15AG, PT6A-27, PT6A-28 and 4 more. Effective Dec 28, 2011 - [AD 2011-20-51](https://openairdocs.org/ad/2011-20-51): Gears · Pratt & Whitney Canada PT6A-15AG, PT6A-27, PT6A-28 and 4 more. Effective Nov 1, 2011 - [AD 2002-23-13](https://openairdocs.org/ad/2002-23-13): Turbine Exhaust Ducts · Pratt & Whitney Canada PT6A-11, PT6A-110, PT6A-112 and 20 more. Effective Dec 31, 2002 - [AD 97-04-12](https://openairdocs.org/ad/97-04-12): Compressor Bleed-off Valve · Pratt & Whitney Canada PT6A-11, PT6A-110, PT6A-112 and 52 more. Effective Mar 14, 1997 - [AD 92-15-11](https://openairdocs.org/ad/92-15-11): Compressor Delivery Air Line (P3) Filter Assembly · Pratt & Whitney Canada PT6A-20, PT6A-20A, PT6A-21 and 7 more. Effective Aug 17, 1992 - [AD 90-12-05](https://openairdocs.org/ad/90-12-05): Engine Overhaul · Pratt & Whitney Canada PT6A-15AG, PT6A-27, PT6A-28 and 3 more. Effective May 30, 1990 - [AD 80-08-12](https://openairdocs.org/ad/80-08-12): Fuel Pump Drive Coupling Splines · Pratt & Whitney Canada PT6A-11, PT6A-112, PT6A-135 and 24 more. Effective Apr 18, 1980 - [AD 75-06-01](https://openairdocs.org/ad/75-06-01): Gearbox Deterioration · Pratt & Whitney Canada PT6A-20, PT6A-20A, PT6A-20B and 11 more. Effective Apr 1, 1977 - [AD 75-11-04](https://openairdocs.org/ad/75-11-04): Reduction Gearbox Engine Distress · Pratt & Whitney Canada PT6A-20, PT6A-20A, PT6A-20B and 8 more. Effective May 20, 1975 - [AD 69-23-06](https://openairdocs.org/ad/69-23-06): Fuel Pumps · Pratt & Whitney Canada PT6A-20, PT6A-27, PT6A-28 and 4 more. Effective Nov 15, 1969 ### Historical (superseded or no longer in force) - [AD 2008-11-10](https://openairdocs.org/ad/2008-11-10) (historical): Wing front spar adapter assemblies · Viking Air DHC-6-1, DHC-6-100, DHC-6-200 and 1 more. Effective Aug 5, 2008 - [AD 2008-03-01](https://openairdocs.org/ad/2008-03-01) (historical): Structural components · Viking Air DHC-6-1, DHC-6-100, DHC-6-200 and 1 more. Effective Mar 6, 2008 - [AD 99-18-13](https://openairdocs.org/ad/99-18-13) (historical): Airplane Flight Manual (AFM) - Limitation Section - power levers · Viking Air DHC-6-1, DHC-6-100, DHC-6-200 and 1 more. Effective Oct 8, 1999 - [AD 97-07-10](https://openairdocs.org/ad/97-07-10) (historical): Wing Struts · Viking Air DHC-6-1, DHC-6-100, DHC-6-200 and 1 more. Effective May 23, 1997 - [AD 89-24-06 R1](https://openairdocs.org/ad/89-24-06-R1) (historical): Elevator Quadrant · Viking Air DHC-6-1, DHC-6-100, DHC-6-200 and 1 more. Effective Sep 13, 1990 - [AD 83-02-02](https://openairdocs.org/ad/83-02-02) (historical): Structural Components · Viking Air DHC-6-1, DHC-6-100, DHC-6-200 and 1 more. Effective Feb 4, 1983 - [AD 80-13-12 R1](https://openairdocs.org/ad/80-13-12-R1) (historical): Longerons · Viking Air DHC-6-1, DHC-6-100, DHC-6-200 and 1 more. Effective Jun 19, 1981 - [AD 80-13-10](https://openairdocs.org/ad/80-13-10) (historical): Y-Joint Main Landing Gear Legs · Viking Air DHC-6-1, DHC-6-100, DHC-6-200 and 1 more. Effective Jul 1, 1980 All 78: https://openairdocs.org/aircraft/N418AV/ads.md ## Information bulletins (advisory) (1 in force) - [SAIB NE-12-04](https://openairdocs.org/saib/NE-12-04): Turbine/ Turboprop Engine: Reduction Gearbox. Issued Nov 1, 2011 ## NTSB investigations None matched to N418AV. ## FAA accident and incident reports None matched to N418AV. ## 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) (285, 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 (Dehavilland DHC-6-300) - [STC SA01800SE](https://openairdocs.org/stc/SA01800SE): Fabrication and installation of new or replacement of existing instrument panel lights dimmer control. TCW Technologies, LLC - [STC SA01861SE](https://openairdocs.org/stc/SA01861SE): Fabrication and installation of Landing Light Controller. TCW Technologies, LLC - [STC SA1841NM](https://openairdocs.org/stc/SA1841NM): Installation of larger windows and the lowering of the seats. Twin Otter STC Holdings, LLC - [STC SA12430IB](https://openairdocs.org/stc/SA12430IB): Installation of the Garmin G1000 NXi Integrated Flight Deck System. Aerocorp Avionics Solutions Inc - [STC SA04837NY](https://openairdocs.org/stc/SA04837NY): Installation of AeroLED's Holdings, LLC., position lights, navigation lights, strobe lights and beacon lights. AeroLED's Holdings, LLC - [STC SA02019SE-D](https://openairdocs.org/stc/SA02019SE-D): Installation of Garmin Model GTN 625/635/650; 725/750 Navigation System. Garmin International Inc - [STC SA800EA](https://openairdocs.org/stc/SA800EA): Installation of Whelen Anti-Collision, Position, or Anti-Collision/Position Light System, and applicable associated power supplies. Whelen Aerospace Technologies - [STC SA7738SW](https://openairdocs.org/stc/SA7738SW): Installation of a freon air conditioning system. Twin Otter STC Holdings LLC - [STC SA943EA](https://openairdocs.org/stc/SA943EA): Replacement of de Havilland wing bleed air ducting with alternate ducting. Texas Air Services Inc - [STC SA03749NY](https://openairdocs.org/stc/SA03749NY): Installation of Garmin G950 Integrated Flight Deck System. Aerocorp Avionic Solutions Inc - [STC SA12280IB](https://openairdocs.org/stc/SA12280IB): Installation of Wing and Outboard Fore Flap Trailing Edge Assemblies. Unity Aviation Canada Ltd - [STC SA11158SC](https://openairdocs.org/stc/SA11158SC): Demonstration of aircraft tolerance to potential electromagnetic interference from certain Transmitting Potable Electronic Devices (T-PEDS). Liberty Partners Inc - [STC SA12101IB](https://openairdocs.org/stc/SA12101IB): Installation of Cabin Interior Upgrade. De Havilland Aircraft of Canada Limited - [STC SA00887LA](https://openairdocs.org/stc/SA00887LA): Installation of Pitot Heater Fail Lights. Team J.A.S - [STC SA02306LA](https://openairdocs.org/stc/SA02306LA): Modify existing Wipaire Inc.'s STC No. SA100CH installed on Viking Air Limited DeHavilland Model-6-300 airplanes. Team J.A.S - [STC SA02556LA](https://openairdocs.org/stc/SA02556LA): Installation of Passenger Utility Seats. Team J.A.S - [STC SA02649LA](https://openairdocs.org/stc/SA02649LA): Installation of Max-Viz 2300 Enhanced Vision System. Team J.A.S - [STC SA02682LA](https://openairdocs.org/stc/SA02682LA): This STC approves the Viking Air Limited DHC-6-300 landplane to operate in the commuter category, to takeoff at a maximum weight of 14,000 pounds and land at a maximum weight of 13,800 pounds, the installation of Pratt & Whitney Canada PT6A-34 engines rated at 750 SHP, and associated modifications. Team J.A.S - [STC SA02730LA](https://openairdocs.org/stc/SA02730LA): Installation of High-Flow 250 AMP Starter-Generators. Team J.A.S - [STC SA02806LA](https://openairdocs.org/stc/SA02806LA): Structural Provisions for AFT Camera Hatch. Team J.A.S - [STC SA02738CH](https://openairdocs.org/stc/SA02738CH): Installation of L-3 Communications Avionics Systems. Acron Aviation Inc - [STC SA04046CH PAGE 2](https://openairdocs.org/stc/SA04046CH%20PAGE%202): Installation of L-3 GENESIS (TM) Electronic Standby Instrument System (ESI-500/MAG-500). Acron Aviation Inc - [STC SA8709SW](https://openairdocs.org/stc/SA8709SW): Installation of a Traffic Alert and Collision Avoidance System I (TCAS I) model TCAS 791/791A. Acron Aviation Inc - [STC SA09887AC](https://openairdocs.org/stc/SA09887AC): Installation of an Avionica MK-III mini Quick Access Recorder (QAR) and optional 4G or LTE Avionica Cellular Module (avCM. Aircraft Systems and Manufacturing Inc - [STC SA39CH](https://openairdocs.org/stc/SA39CH): Installation of an Amphibian Landing Gear Position Advisory System/Laser Gear Advisory System. Wipaire Inc - [STC SA00221IB](https://openairdocs.org/stc/SA00221IB): Installation of the Nose Cone Research Provisions. Rocky Mountain Aircraft - [STC SA02386AK](https://openairdocs.org/stc/SA02386AK): Replacement of existing landing and/or taxi light reflector and bulbs with Light Emitting Diode (LED) lighting systems. AeroLED's Holding LLC - [STC SA00196IB](https://openairdocs.org/stc/SA00196IB): Installation of the Replacement Aluminum Cargo Floor Panels. Rocky Mountain Aircraft - [STC SA02380LA](https://openairdocs.org/stc/SA02380LA): Re-Life of the Viking Air Limited Model DHC-6 Series 100, 200 and 300 fuselage, horizontal stabilizer, and vertical stabilizer. IKHANA Group Inc - [STC SA02658SE](https://openairdocs.org/stc/SA02658SE): Installation of Garmin GI 275 Multi-Function Display System. Garmin International Inc - [STC SA00171IB](https://openairdocs.org/stc/SA00171IB): Installation of the Radar Altimeter Mounts (Structural Provisions Only). Rocky Mountain Aircraft - [STC SA00152IB](https://openairdocs.org/stc/SA00152IB): Installation of High Back Seat Modification. Kenn Borek Air Ltd - [STC SA02457LA](https://openairdocs.org/stc/SA02457LA): Re-Life flight controls. IKHANA Group Inc - [STC SA3532NM](https://openairdocs.org/stc/SA3532NM): Installation of Hartzell/Raisbeck Quiet Turbofan Propeller System. Suitable for DHC-6-300 airplanes with PT6A-27 engines. Raisbeck Engineering Inc - [STC SA00129IB](https://openairdocs.org/stc/SA00129IB): Decommission of Standard Operators Options (S.O.O.) 6095 Fuel System. Kenn Borek Air Ltd - [STC SA00085IB](https://openairdocs.org/stc/SA00085IB): Installation of Elevator Replacement Trailing Edge. Rocky Mountain Aircraft - [STC SA02010WI](https://openairdocs.org/stc/SA02010WI): Installation of the Mid-Continent Instruments & Avionics MD23 FLEX Custom Function Display (CFD). Mid-Continent Instruments and Avionics - [STC SA04550AT](https://openairdocs.org/stc/SA04550AT): Main Wheel and Brake Assembly for the Viking Air DHC-6 Series aircraft. PMA Design and Manufacturing - [STC SA1065GL](https://openairdocs.org/stc/SA1065GL): Install Aircraft Wheel and Brake CONVERSION Kit 199-92, N/C. KAMAN Corporation Aircraft Wheel and Brake LLC - [STC SA00061IB](https://openairdocs.org/stc/SA00061IB): Activation of the Garmin GTN 750 (Xi) TAWS-A. Rocky Mountain Aircraft - [STC SA00060IB](https://openairdocs.org/stc/SA00060IB): Installation of LED Replacement Cockpit Panels. Rocky Mountain Aircraft - [STC SA00054IB](https://openairdocs.org/stc/SA00054IB): Installation of Pitot Heat Indication System. Rocky Mountain Aircraft - [STC SA00042IB](https://openairdocs.org/stc/SA00042IB): Installation of Engine Chip Detectors. Rocky Mountain Aircraft - [STC SA02254AK](https://openairdocs.org/stc/SA02254AK): Installation of "Single Screen", "2 or 3 Screen", "Dual Screen", or "4 or 6 screen". Genesys Aerosystems Inc - [STC SA02444AK](https://openairdocs.org/stc/SA02444AK): Approval of the L-3 Communications NGT 9000/9000R ADS-B system installed. ADS-B Technologies LLC - [STC SA04701NY](https://openairdocs.org/stc/SA04701NY): Replacement of Fixed Wing Control Cables. Thunder Bay Aviation Ltd - [STC SA04698NY](https://openairdocs.org/stc/SA04698NY): Approval of an Controlled Aircraft Equipment Configuration providing for the authorized use of Transmitting Portable Electronic Devices (TPED). Kilroy Aviation LLC - [STC SA5970NM](https://openairdocs.org/stc/SA5970NM): MK VI Ground Proximity Warning System installed and maintained in accordance with Honeywell Top Drawing No. 960-2177, Revision A, dated June 28, 1993, or later FAA Approved revision. Honeywell International Inc - [STC SA00282NY](https://openairdocs.org/stc/SA00282NY): Replacement latches on upper and lower cargo door. PMA Design & Manufacturing Inc - [STC SA00160LA](https://openairdocs.org/stc/SA00160LA): Installation of IKHANA Aircraft Services wing box assembly. IKHANA Group Inc All 285: https://openairdocs.org/aircraft/N418AV/stcs.md ## Related - Other Dehavilland DHC-6-300 aircraft: https://openairdocs.org/model/dehavilland-dhc-6-300/aircraft.md - The Pratt & Whitney PT6A-27 series engine: https://openairdocs.org/engine/pratt-whitney-pt6a-27-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.