# N682AF: Dehavilland DHC-2 MK. I(L20A)

- Status: Valid registration
- Airframe: [Dehavilland DHC-2 MK. I(L20A)](https://openairdocs.org/model/dehavilland-dhc-2-mk-i-l20a) (registry code 2808002, 8 seats)
- Engine: [Pratt & Whitney R-985 series](https://openairdocs.org/engine/pratt-whitney-r-985-series) (registry code 52008)
- Data sheets: [TCDS A-806](https://openairdocs.org/tcds/A-806) (De Havilland Aircraft of Canada Limited) (OpenAirDocs)
- Serial number: 1163 (56-412)
- Type: Fixed wing single engine
- Engine type: Reciprocating
- Airworthiness: Standard, normal
- Airworthiness date: May 22, 1990
- Certificate issued: April 22, 2021
- Expires: April 30, 2028
- Mode S code: A90AAB
- Registered owner: [Apogee Flight Inc](https://openairdocs.org/faa-owner/APOGEE%20FLIGHT%20INC)
- Location: [Bellingham, WA](https://openairdocs.org/faa-place/WA/Bellingham)
- Owner type: Corporation
- Owner's area on the map: 48.7973° N, 122.4315° W: Placed by OpenAirDocs at the center of ZIP code 98226, 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=682AF
- Page: https://openairdocs.org/aircraft/N682AF

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 R-985 model are included.

## ADs that may apply (OpenAirDocs): 35 in force

### Matched by airframe (Dehavilland DHC-2 MK. I(L20A))

- [AD 2023-19-06](https://openairdocs.org/ad/2023-19-06): Airframe · Viking Air DHC-2 Mk.II, DHC-2 Mk.I and DHC-2 Mk.III. Effective Nov 6, 2023
- [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 2023-06-11](https://openairdocs.org/ad/2023-06-11): Wing Spar · Viking Air DHC-2 Mk.I with STC SA01324CH. Effective Apr 28, 2023
- [AD 2022-17-05](https://openairdocs.org/ad/2022-17-05): Fuselage Structure (General) · Viking Air DHC-2 Mk.I, DHC-2 Mk.II and DHC-2 Mk.III. Effective Sep 30, 2022
- [AD 2022-03-15](https://openairdocs.org/ad/2022-03-15): Fuel Quantity Indicator · Garmin G3X Touch Electronic Flight Instrument System (STC SA01899WI or SA02658SE). Effective Mar 21, 2022
- [AD 2020-16-15](https://openairdocs.org/ad/2020-16-15): Fuselage · Viking Air DHC-2 Mk.I and DHC-2 Mk.III with STC SA00299NY or SA945NE. Effective Sep 21, 2020
- [AD 2018-19-11](https://openairdocs.org/ad/2018-19-11): Wings · Viking Air DHC-2 Mk.I, DHC-2 Mk.II and DHC-2 Mk.III. Effective Oct 30, 2018
- [AD 2016-25-22](https://openairdocs.org/ad/2016-25-22): Flight Controls · Viking Air DHC-2 Mk.I, DHC-2 Mk.II and DHC-2 Mk.III. Effective Dec 22, 2016
- [AD 2015-02-10](https://openairdocs.org/ad/2015-02-10): Flight Controls · Viking Air DHC-2 Mk.I, DHC-2 Mk.II and DHC-2 Mk.III. Effective Feb 18, 2015
- [AD 2008-12-12](https://openairdocs.org/ad/2008-12-12): Ignition connector plug · Viking Air DHC-2 Mk.I, DHC-2 Mk.II and DHC-3. Effective Jul 23, 2008
- [AD 2008-11-11](https://openairdocs.org/ad/2008-11-11): Front spar center · Viking Air DHC-2 Mk.I, DHC-2 Mk.II and DHC-2 Mk.III. Effective Jul 23, 2008
- [AD 2007-12-13](https://openairdocs.org/ad/2007-12-13): Wing lift strut lower clevis fitting · Viking Air DHC-2 Mk.I, DHC-2 Mk.II and DHC-2 Mk.III. Effective Jul 16, 2007
- [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 2005-01-19](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 2002-13-08](https://openairdocs.org/ad/2002-13-08): Mass Balance Weights at Elevator Tip Ribs · Viking Air DHC-2 Mk.I, DHC-2 Mk.II and DHC-2 Mk.III. Effective Aug 13, 2002
- [AD 99-15-07](https://openairdocs.org/ad/99-15-07): Rear Fuselage Bulkhead · Viking Air DHC-2 Mk.I, DHC-2 Mk.II and DHC-2 Mk.III. Effective Sep 10, 1999
- [AD 90-02-22](https://openairdocs.org/ad/90-02-22): Fuselage Attachment Brackets · Viking Air DHC-2 Mk.I and DHC-2 Mk.II. Effective Feb 13, 1990
- [AD 84-20-07](https://openairdocs.org/ad/84-20-07): Wing Lift Strut Assembly · Viking Air DHC-2 Mk.I, DHC-2 Mk.II and DHC-2 Mk.III. Effective Oct 12, 1984
- [AD 84-09-06](https://openairdocs.org/ad/84-09-06): Control Column Sub-Assembly · Viking Air DHC-2 Mk.I, DHC-2 Mk.II and DHC-2 Mk.III. Effective May 10, 1984
- [AD 84-07-05](https://openairdocs.org/ad/84-07-05): L/R Aileron Hinge Bracket · Viking Air DHC-2 Mk.I, DHC-2 Mk.II and DHC-2 Mk.III. Effective Apr 18, 1984
- [AD 81-13-01](https://openairdocs.org/ad/81-13-01): Elevator Butt Ribs · Viking Air DHC-2 Mk.I, DHC-2 Mk.II and DHC-2 Mk.III. Effective Jun 18, 1981
- [AD 80-24-02](https://openairdocs.org/ad/80-24-02): Aileron Mount Structures · Viking Air DHC-2 Mk.I, DHC-2 Mk.II and DHC-2 Mk.III. Effective Nov 20, 1980
- [AD 76-14-02](https://openairdocs.org/ad/76-14-02): Various Modifications · Viking Air DHC-2 Mk.I, DHC-2 Mk.II and DHC-2 Mk.III. Effective Jul 12, 1976
- [AD 74-17-03](https://openairdocs.org/ad/74-17-03): Cabin Heater Inspection · Viking Air DHC-2 Mk.I. Effective Aug 12, 1974
- [AD 73-25-05](https://openairdocs.org/ad/73-25-05): Float Support Structure · Viking Air DHC-2 Mk.I. Effective Dec 14, 1973
- [AD 66-17-02](https://openairdocs.org/ad/66-17-02): Front and Rear Spars · Viking Air DHC-2 Mk.I, DHC-2 Mk.II and DHC-2 Mk.III. Effective Jul 22, 1966
- [AD 64-14-02](https://openairdocs.org/ad/64-14-02): Elevator Trim Tab End Blocks · Viking Air DHC-2 Mk.I, DHC-2 Mk.II and DHC-2 Mk.III. Effective Jul 24, 1964
- [AD 54-15-01](https://openairdocs.org/ad/54-15-01): Control Cable Turnbuckle Threads · Viking Air DHC-2 Mk.I, DHC-2 Mk.II and DHC-2 Mk.III
- [AD 53-23-02](https://openairdocs.org/ad/53-23-02): Fuel Tank Filler Neck · Viking Air DHC-2 Mk.I, DHC-2 Mk.II and DHC-2 Mk.III
- [AD 53-21-01](https://openairdocs.org/ad/53-21-01): Wing Rear Spar Attachment Bolt · Viking Air DHC-2 Mk.I, DHC-2 Mk.II and DHC-2 Mk.III
- [AD 53-12-02](https://openairdocs.org/ad/53-12-02): Hydraulic Hand Pump Seals · Viking Air DHC-2 Mk.I, DHC-2 Mk.II and DHC-2 Mk.III
- [AD 53-11-02](https://openairdocs.org/ad/53-11-02): Engine Oil Sump Chafing · Viking Air DHC-2 Mk.I, DHC-2 Mk.II and DHC-2 Mk.III
- [AD 53-10-02](https://openairdocs.org/ad/53-10-02): Wing Skin Cracks · Viking Air DHC-2 Mk.I, DHC-2 Mk.II and DHC-2 Mk.III
- [AD 53-09-02](https://openairdocs.org/ad/53-09-02): Fuselage Skin Cracks · Viking Air DHC-2 Mk.I, DHC-2 Mk.II and DHC-2 Mk.III
- [AD 53-07-01](https://openairdocs.org/ad/53-07-01): Elevator Hinge Attachment · Viking Air DHC-2 Mk.I, DHC-2 Mk.II and DHC-2 Mk.III

### Matched by engine (Pratt & Whitney R-985 series)

None in force.

### Historical (superseded or no longer in force)

- [AD 2016-19-08](https://openairdocs.org/ad/2016-19-08) (historical): Flight Controls · Viking Air DHC-2 Mk.I, DHC-2 Mk.II and DHC-2 Mk.III. Effective Oct 24, 2016
- [AD 2004-21-06](https://openairdocs.org/ad/2004-21-06) (historical): Firewall Connector Plugs Lockwire Security · Viking Air DHC-3, DHC-2 Mk.I and DHC-2 Mk.II. Effective Dec 6, 2004
- [AD 2002-14-28](https://openairdocs.org/ad/2002-14-28) (historical): Front Fuselage Struts · Viking Air DHC-2 Mk.I, DHC-2 Mk.II and DHC-2 Mk.III. Effective Sep 6, 2002
- [AD 92-24-02](https://openairdocs.org/ad/92-24-02) (historical): Horizontal Stabilizer Front Center Spar · Viking Air DHC-2 Mk.I, DHC-2 Mk.II and DHC-2 Mk.III. Effective Dec 15, 1992
- [AD 88-08-02](https://openairdocs.org/ad/88-08-02) (historical): Wing Strut Assemblies · Viking Air DHC-2 Mk.I and DHC-2 Mk.III. Effective May 11, 1988
- [AD 64-09-03](https://openairdocs.org/ad/64-09-03) (historical): Aileron Mass Balance Weight Arm · Viking Air DHC-2 Mk.I, DHC-2 Mk.II and DHC-2 Mk.III. Effective May 22, 1964

## Information bulletins (advisory) (4 in force)

- [SAIB SW-18-31](https://openairdocs.org/saib/SW-18-31): NAVIGATION, ATTITUDE, AND DIRECTION DATA SYSTEM. Issued Nov 21, 2018
- [SAIB CE-09-45](https://openairdocs.org/saib/CE-09-45): Leveling & Weighing: Viking Air Limited DHC-2 MKI Gross Weight Increase Modification (STC SA00299NY). Issued Jul 29, 2009
- [SAIB CE-06-10](https://openairdocs.org/saib/CE-06-10): . Issued Nov 18, 2005
- [SAIB CE-03-36](https://openairdocs.org/saib/CE-03-36): . Issued May 14, 2003

## NTSB investigations

None matched to N682AF.

## FAA accident and incident reports

None matched to N682AF.

## 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) (268, 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-2 MK. I(L20A))

- [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 SA02279AT](https://openairdocs.org/stc/SA02279AT): Installation of a Boom Beam bulb, starter, and ballast. Whelen Aerospace Technologies
- [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 SA04652CH](https://openairdocs.org/stc/SA04652CH): To allow use of 100R grade aviation fuel meeting Swift Fuel, LLC specification. Swift Fuels LLC
- [STC SA02636SE](https://openairdocs.org/stc/SA02636SE): Installation of Garmin GPS 175 Navigation System and GNX 375 Navigation System with ADS-B In/Out Transponder. Garmin International Inc
- [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 SA348NW](https://openairdocs.org/stc/SA348NW): Installation of JASCO Model 7555-1 alternator kit on P&W R-985 series engine. Kenmore Air Harbor LLC
- [STC SA02511SE](https://openairdocs.org/stc/SA02511SE): Installation of replacement fuel quantity indicator sending unit(s). CiES Inc
- [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 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 SA11886IB](https://openairdocs.org/stc/SA11886IB): Installation of Alternator Replacement. Skye Avionics Ltd
- [STC SA39CH](https://openairdocs.org/stc/SA39CH): Installation of an Amphibian Landing Gear Position Advisory System/Laser Gear Advisory System. Wipaire Inc
- [STC SA709GL](https://openairdocs.org/stc/SA709GL): Installation of Hartzell HC-B3R30-4, -4A, -4B/ R10152-5 1/2 propeller, C-4 governor, and836-32PR spinner on P&W R-985 series engines (with 4 1/2 and 9th order crankshaft vibration dampers). (DHC-2 (L-20A) MK.I LANDPLANE; SKIPLANE, FLOATPLANE). Wipaire Inc
- [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 SA01757WI](https://openairdocs.org/stc/SA01757WI): To allow the use of UL91 or UL94 (minimum) grade aviation fuel. Swift Fuels LLC
- [STC SA02585AK](https://openairdocs.org/stc/SA02585AK): Installation of Tailwind Aviation Viking Air Limited DHC-2 Main Gear Gravel Deflectors. Tailwind Aviation
- [STC SA456NW](https://openairdocs.org/stc/SA456NW): Installation of auxiliary vertical seaplane fins. Kenmore Air Harbor LLC
- [STC SA02658SE](https://openairdocs.org/stc/SA02658SE): Installation of Garmin GI 275 Multi-Function Display System. Garmin International Inc
- [STC SA02571SE](https://openairdocs.org/stc/SA02571SE): Installation of Garmin G500/G600 TXi Integrated Avionics System (Primary Flight Display, Multi-Function Display, and Engine Indicating System Display). Garmin International Inc
- [STC SA02019WI](https://openairdocs.org/stc/SA02019WI): Installation of the Trig Avionics TX56, TX56A, TX57, or TX57A VHF Nav-Com Radio. Peregrine
- [STC SA00756DE](https://openairdocs.org/stc/SA00756DE): Installation of Automatic Dependent Surveillance Broadcast (ADS-B) Out Equipment using a Trig Avionics TT22 Transponder and an approved Global Positioning System (GPS) Position Sensor. Peregrine
- [STC SA1402GL](https://openairdocs.org/stc/SA1402GL): Installation of Cleveland Main Wheels and Brakes. Kaman Corporation Aircraft Wheel and Brake LLC
- [STC SA01967WI](https://openairdocs.org/stc/SA01967WI): Use of GAMI G100UL High Octane Unleaded Avgas. General Aviation Modifications Inc
- [STC SA2258AK](https://openairdocs.org/stc/SA2258AK): Fabrication and installation of a replacement forward fuselage tubular frame. Airforms LLC
- [STC SA02203AK](https://openairdocs.org/stc/SA02203AK): Installation of FlightLogic Synthetic Vision Electronic Flight Information System (EFIS-SV). Genesys Aerosystems Inc
- [STC ST03434CH](https://openairdocs.org/stc/ST03434CH): Installation of Trace TE600D engine. Aeronautix LLC
- [STC SA02567AK](https://openairdocs.org/stc/SA02567AK): Installation of provisions to carry rolled rubber rafts as external loads strapped to the floats. Tailwind Aviation Inc
- [STC SA4-182](https://openairdocs.org/stc/SA4-182): Installation of VIP P/N 101-78 engine mount. FTG, 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 SA736NW](https://openairdocs.org/stc/SA736NW): Installation of Cleveland Model 40-46 Wheels and Model 30-31 brakes on Edo/Bristol/deHavilland 58-4580 amphibious floats. Kenmore Air Harbor LLC
- [STC SA04701NY](https://openairdocs.org/stc/SA04701NY): Replacement of Fixed Wing Control Cables. Thunder Bay Aviation Ltd
- [STC SA01015SE](https://openairdocs.org/stc/SA01015SE): Installation of eligible Alaska Bushwheel, Inc. wheels and TSO-C62d tires. ABI LLC
- [STC SA1042NE](https://openairdocs.org/stc/SA1042NE): Installation of a new heater. Kevin Franklin
- [STC SA09856AC](https://openairdocs.org/stc/SA09856AC): Installation of BendixKing Aerowave 100 In-flight Data Link System for non-essential, non-required aircraft Cabin Systems & Equipments. Honeywell International Inc (Bendix King)
- [STC SA11174SC PAGE 2](https://openairdocs.org/stc/SA11174SC%20PAGE%202): Installation of BendixKing by Honeywell KSN 770 and KSN 765 WAAS LPV approach capable nav/comm systems. Honeywell International Inc (Bendix King)
- [STC SA10822SC](https://openairdocs.org/stc/SA10822SC): Installation of EFD1000 Primary Flight Display. Aspen Avionics Inc
- [STC SA02426AK](https://openairdocs.org/stc/SA02426AK): Approval of the FreeFlight FDL-978-TX ADS-B system installed. FreeFlight Systems
- [STC SA01831WI](https://openairdocs.org/stc/SA01831WI): To allow the use of UL91 (minimum) grade aviation fuel. Petersen Aviation Inc
- [STC SA10236SC](https://openairdocs.org/stc/SA10236SC): Installation of a GDC 31 Roll Steering Converter. DAC International Inc
- [STC SA01560WI-D](https://openairdocs.org/stc/SA01560WI-D): Installation of the Honeywell KFD 840 Primary Flight Display System. Honeywell International Inc
- [STC SA01725WI](https://openairdocs.org/stc/SA01725WI): Installation of Pratt & Whitney R-985-AN14B or R-985-AN1 engine modified for fuel injection. A & L Aircraft Parts Inc
- [STC SA5190NM](https://openairdocs.org/stc/SA5190NM): Installation of Gustin Aviation chip detector light system. A & L Aircraft Parts Inc
- [STC SA01714WI](https://openairdocs.org/stc/SA01714WI): Installation of a Garmin transponders: (a) GTX 330/330D/33/33D with ADS-B Out functionality; (b) GTX 335/335R/345/345R with ADS-B Out and In functionality; or (c) GTX 335R/345R with ADS-B Out functionality in select airplanes installed with G950/G1000 systems. Garmin International Inc
- [STC SA00344BO PAGE 2](https://openairdocs.org/stc/SA00344BO%20PAGE%202): Installation of Parmetheus Plus LED PAR36 and PAR46 taxi and landing lights. Whelen Aerospace Technologies
- [STC SA615EA](https://openairdocs.org/stc/SA615EA): Installation of a Whelen Anti-Collision Strobe Light System as replacement for originally installed anti-collision lights. Whelen Aerospace Technologies
- [STC SA00234SE](https://openairdocs.org/stc/SA00234SE): Fabrication of Kenmore Air Harbor, Inc., wing strut fitting. Kenmore Air Harbor LLC
- [STC SA00799SE](https://openairdocs.org/stc/SA00799SE): Install an air oil separator. Kenmore Air Harbor LLC

All 268: https://openairdocs.org/aircraft/N682AF/stcs.md

## Related

- Other Dehavilland DHC-2 MK. I(L20A) aircraft: https://openairdocs.org/model/dehavilland-dhc-2-mk-i-l20a/aircraft.md
- The Pratt & Whitney R-985 series engine: https://openairdocs.org/engine/pratt-whitney-r-985-series.md

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