# N51685: Beech 65

- Status: Valid registration
- Airframe: [Beech 65](https://openairdocs.org/model/beech-65) (registry code 1152802, 9 seats)
- Data sheets: [TCDS 3A20](https://openairdocs.org/tcds/3A20) (Textron Aviation Inc.) (OpenAirDocs)
- Serial number: LC-40
- Type: Fixed wing multi engine
- Engine type: Reciprocating
- Certificate issued: May 7, 2025
- Expires: May 31, 2032
- Mode S code: A67B47
- Registered owner: [Midland Avionics LLC](https://openairdocs.org/faa-owner/MIDLAND%20AVIONICS%20LLC)
- Location: [Louisville, KY](https://openairdocs.org/faa-place/KY/Louisville)
- Owner type: LLC
- Owner's area on the map: 38.0884° N, 85.6604° W: Placed by OpenAirDocs at the center of ZIP code 40229, 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=51685
- Page: https://openairdocs.org/aircraft/N51685

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): 20 in force

### Matched by airframe (Beech 65)

- [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 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 99-05-13 R1 WD](https://openairdocs.org/ad/99-05-13-R1-WD): Withdrawal of AD 99-05-13 · Beech B17B, B17L, B17R (Army UC-43H) and 107 more. Effective Jul 5, 2000
- [AD 95-26-15 R1](https://openairdocs.org/ad/95-26-15-R1): Traffic Alert and Collision Avoidance Systems · Airbus A300 B2-1A, A300 B2-1C, A300 B2-203 and 159 more. Effective Dec 26, 1996
- [AD 95-20-01 R1](https://openairdocs.org/ad/95-20-01-R1): Placard - Cabin Door · Textron 65. Effective Nov 3, 1995
- [AD 89-25-08](https://openairdocs.org/ad/89-25-08): Wing Main Spar Inspection · Textron 65, 65-80, 65-A80 and 1 more. Effective Jan 4, 1990
- [AD 88-04-07](https://openairdocs.org/ad/88-04-07): Wing Spar Nuts Inspection · Textron 100, 65, 65-80 and 18 more. Effective Apr 18, 1988
- [AD 85-22-05](https://openairdocs.org/ad/85-22-05): Nuts and Bolts Replacement · Textron 100, 200, 200C and 60 more. Effective Nov 12, 1985
- [AD 81-23-01 R1](https://openairdocs.org/ad/81-23-01-R1): Beech Kit or Supplemental Type Certificate · Textron 100, 65, 65-88 and 20 more. Effective Jan 4, 1982
- [AD 79-01-02 R2](https://openairdocs.org/ad/79-01-02-R2): In-Flight Fires · Textron 65, 65-80, 65-88 and 17 more. Effective Sep 22, 1980
- [AD 79-16-01](https://openairdocs.org/ad/79-16-01): Wing Structure · Textron 65, 65-80, 65-90 and 2 more. Effective Aug 6, 1979
- [AD 78-11-01](https://openairdocs.org/ad/78-11-01): Powerplant Fires · Textron 65, 65-80, 65-88 and 11 more. Effective Feb 6, 1979
- [AD 78-22-05](https://openairdocs.org/ad/78-22-05): Elevator Control Push Rods · Textron 100, 50, 65 and 31 more. Effective Nov 6, 1978
- [AD 77-22-01](https://openairdocs.org/ad/77-22-01): Fuselage Structure · Textron 65, 65-80, 65-88 and 11 more. Effective Aug 23, 1978
- [AD 78-05-06](https://openairdocs.org/ad/78-05-06): Flexible Fuel Cells · Cessna 180, 182, 185 and 98 more. Effective Jun 30, 1978
- [AD 76-09-01](https://openairdocs.org/ad/76-09-01): Emergency Exit Door · Textron 65, 65-80, 65-A80 and 5 more. Effective Apr 30, 1976
- [AD 62-08-03](https://openairdocs.org/ad/62-08-03): Control Wheels · Textron 35, 35-33, 35-A33 and 33 more. Effective Jul 9, 1970
- [AD 66-02-01](https://openairdocs.org/ad/66-02-01): Air Conditioners · Beechcraft 56TC, 58, 58A and 39 more. Effective Feb 10, 1966
- [AD 64-24-02](https://openairdocs.org/ad/64-24-02): Wing Attach Bolts · Textron 65, D50E and J50. Effective Nov 20, 1964

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

- [AD 99-05-13](https://openairdocs.org/ad/99-05-13) (historical): Fuel Tank Selector · Beech B17B, B17L, B17R (Army UC-43H) and 107 more. Effective Apr 19, 1999
- [AD 87-22-01 R1](https://openairdocs.org/ad/87-22-01-R1) (historical): Nose Landing Gear Fork · Raytheon 100 Model or Series (all), 1900, 1900C and 50 more. Effective Sep 30, 1989

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

- [SAIB CE-10-34R2](https://openairdocs.org/saib/CE-10-34R2): Alternative Methods of Compliance (AMOC) to Airworthiness Directive (AD) 89-25-10 and 89-25-08. Issued Aug 30, 2013
- [SAIB CE-12-36](https://openairdocs.org/saib/CE-12-36): Flight Controls: Aileron. Issued Jun 19, 2012
- [SAIB CE-11-04](https://openairdocs.org/saib/CE-11-04): Wings  Wing Spar. Issued Dec 2, 2010
- [SAIB CE-02-19](https://openairdocs.org/saib/CE-02-19): . Issued Mar 11, 2002
- [SAIB CE-10-34R1](https://openairdocs.org/saib/CE-10-34R1) (historical): Alternative Methods of Compliance (AMOC) to Airworthiness Directive (AD) 89-25-10 and 89-25-08. Issued Aug 20, 2013
- [SAIB CE-10-34](https://openairdocs.org/saib/CE-10-34) (historical): Alternative Methods of Compliance (AMOC) to Airworthiness Directive (AD) 89-25-10 and AD 89-25-08. Issued May 18, 2010

## NTSB investigations

None matched to N51685.

## FAA accident and incident reports

None matched to N51685.

## 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) (230, 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 (Beech 65)

- [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 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 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 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 1](https://openairdocs.org/stc/SA04046CH%20PAGE%201): Installation of L-3 GENESIS (TM) Electronic Standby Instrument System (ESI-500/MAG-500). Acron Aviation Inc
- [STC SA378CH](https://openairdocs.org/stc/SA378CH): Installation of TCAS I. 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 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 SA02658SE](https://openairdocs.org/stc/SA02658SE): Installation of Garmin GI 275 Multi-Function Display System. Garmin International Inc
- [STC SA02532AT](https://openairdocs.org/stc/SA02532AT): Installation of subject Michelin tires on appropriate aircraft. For Michelin 5, 6, 8, and 10-inch rim diameter tires on General Aviation Aircraft. Michelin North America Inc
- [STC SA02014WI](https://openairdocs.org/stc/SA02014WI): Installation of a swept vertical stabilizer and rudder assembly. Bemidji Aviation Services, Inc
- [STC SA01814AT-D](https://openairdocs.org/stc/SA01814AT-D): Modification of Nose Gear Doors. Summit Aviation Inc
- [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 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 SA1686WE](https://openairdocs.org/stc/SA1686WE): Installation of Vibration Isolation Products (VIP) engine mount P/Ns VIP 50525-1 and VIP 50545-1 on various aircraft as shown on FAA Approved Model List (AML) No. SA1686WE. FTG, Inc
- [STC SA1077GL](https://openairdocs.org/stc/SA1077GL): Replace existing nose wheel with Cleveland nose wheel P/N 40-204. KAMAN Corporation Aircraft Wheel and Brake LLC
- [STC SA673GL](https://openairdocs.org/stc/SA673GL): Install wheels and brakes according to Parker Hannifin 'Installation Instructions' for 199-123. Kaman Corporation Aircraft Wheel and Brake LLC1160 Center Road, Avon, OH 44011
- [STC SA01967WI](https://openairdocs.org/stc/SA01967WI): Use of GAMI G100UL High Octane Unleaded Avgas. General Aviation Modifications Inc
- [STC SA02203AK](https://openairdocs.org/stc/SA02203AK): Installation of FlightLogic Synthetic Vision Electronic Flight Information System (EFIS-SV). Genesys Aerosystems Inc
- [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 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 1](https://openairdocs.org/stc/SA11174SC%20PAGE%201): Installation of BendixKing by Honeywell KSN 770 and KSN 765 WAAS LPV approach capable nav/comm systems. Honeywell International Inc (Bendix King)
- [STC SA02265SE](https://openairdocs.org/stc/SA02265SE): Installation of a camera housing. Airborne Sensor LLC
- [STC SA02430SE](https://openairdocs.org/stc/SA02430SE): Fabrication and installation of a camera housing. Airborne Sensor LLC
- [STC SA04062NY](https://openairdocs.org/stc/SA04062NY): Installation of Garmin G600 Avionics System. airplus engineering GmbH
- [STC SA10236SC](https://openairdocs.org/stc/SA10236SC): Installation of a GDC 31 Roll Steering Converter. DAC International Inc
- [STC SA02268CH](https://openairdocs.org/stc/SA02268CH): Installation of Airwolf Filter Corp. Air Oil Separator. Airwolf Filter Corporation
- [STC SA2326CE-D](https://openairdocs.org/stc/SA2326CE-D): Installation of the Bendix/King KLN 88 LORAN C system. Honeywell International Inc
- [STC SA1562CE-D](https://openairdocs.org/stc/SA1562CE-D): Install King KFC 200 flight control system, two or three axis, with flight director and with optional KAS 297 altitude selector. Honeywell International Inc
- [STC SA01452CH](https://openairdocs.org/stc/SA01452CH): Installation of an air ambulance conversion kit. Med-Pac 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 1](https://openairdocs.org/stc/SA00344BO%20PAGE%201): 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 SA159CH](https://openairdocs.org/stc/SA159CH): Convert left- or right-side cockpit window into a crew door and disconnect pressurization system. Resource Aircraft Conversions
- [STC SA00744DE](https://openairdocs.org/stc/SA00744DE): Installation of the Automatic Dependent Surveillance Broadcast (ADS-B) Out Equipment using a Trig Avionics TT31 Transponder and an approved position sensor. Peregrine
- [STC SA00765DE](https://openairdocs.org/stc/SA00765DE): Installation of Automatic Dependent Surveillance Broadcast (ADS-B) Out functionality using the BendixKing KT74 Transponder and qualified position sensor. Peregrine
- [STC SA04165NY](https://openairdocs.org/stc/SA04165NY): Installation of Latitude Technologies Skynode S200 Satcom system must be performed. Latitude Technologies Corporation
- [STC SA02153LA-D PAGE 1](https://openairdocs.org/stc/SA02153LA-D%20PAGE%201): Installation of Garmin G600 Primary Flight Display (PFD) and Multifunction Display (MFD) System. Garmin International Inc
- [STC SA02013CH](https://openairdocs.org/stc/SA02013CH): Installation of Avidyne Corporation Traffic Advisory System (TAS). Avidyne Corporation
- [STC SA01828SE](https://openairdocs.org/stc/SA01828SE): Installation of J.P. Instruments (JPI) EDM-960 Primary Engine Data Management System. J. P. Instruments
- [STC SA01835WI](https://openairdocs.org/stc/SA01835WI): Installation of Trig Avionics TY-96 or TY-97 VHF Communications Radio. Peregrine
- [STC SA00024NY](https://openairdocs.org/stc/SA00024NY): Installation of Airwolf remote mounted engine oil filter kit AFC-K007 on single or multi-engine fixed wing light aircraft incorporating Lycoming reciprocating engines of 450 horsepower or less. Airwolf Filter Corporation
- [STC SA01933LA-D](https://openairdocs.org/stc/SA01933LA-D): Installation of Garmin Model 400W / 500W Series GPS-WAAS Navigation System. Garmin International Inc
- [STC SA2586NM](https://openairdocs.org/stc/SA2586NM): Installation of J.P. Instruments temperature monitoring systems. J P Instruments

All 230: https://openairdocs.org/aircraft/N51685/stcs.md

## Earlier aircraft with N51685

The FAA can reassign an N-number once a registration is cancelled. These aircraft carried N51685 before.

- [Cancelled 1951-03-02](https://openairdocs.org/deregistered/N51685-1951-03-02): Fairchild M-62A, S/N T42-3526, built 1942. Owner: [Miller Paul P](https://openairdocs.org/faa-owner/MILLER%20PAUL%20P), [Conneaut Lake, PA](https://openairdocs.org/faa-place/PA/Conneaut%20Lake)

## Related

- Other Beech 65 aircraft: https://openairdocs.org/model/beech-65/aircraft.md

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