# N84FN: 1974 Gates Lear Jet 36

- Status: Valid registration
- Airframe: [Gates Lear Jet 36](https://openairdocs.org/model/gates-lear-jet-36) (registry code 5170601, 10 seats)
- Engine: [Garrett TFE731-2-2B](https://openairdocs.org/engine/garrett-tfe731-2-2b) (registry code 29116)
- Data sheets: [TCDS A10CE](https://openairdocs.org/tcds/A10CE) (Learjet Inc.) (OpenAirDocs)
- Serial number: 002
- Year built: 1974
- Type: Fixed wing multi engine
- Engine type: Turbo-fan
- Airworthiness: Restricted, other
- Airworthiness date: April 14, 2022
- Certificate issued: September 27, 2021
- Expires: September 30, 2028
- Mode S code: AB7E0A
- Registered owner: [Gh Equipment LLC](https://openairdocs.org/faa-owner/GH%20EQUIPMENT%20LLC)
- Location: [Dover, DE](https://openairdocs.org/faa-place/DE/Dover)
- Owner type: LLC
- Owner's area on the map: 39.1815° N, 75.4736° W: Placed by OpenAirDocs at the center of ZIP code 19901, within about 5 miles (OpenAirDocs). The owner's mailing address, not where the aircraft is based
- FAA registry: https://registry.faa.gov/AircraftInquiry/Search/NNumberResult?nNumberTxt=84FN
- Page: https://openairdocs.org/aircraft/N84FN

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): 36 in force

### Matched by airframe (Gates Lear Jet 36)

- [AD 2022-05-01](https://openairdocs.org/ad/2022-05-01): Spoilers · Learjet 35, 35A (C-21A), 36 and 5 more. Effective Mar 9, 2022
- [AD 2018-19-04](https://openairdocs.org/ad/2018-19-04): TE Flap Control System · Learjet 28, 29, 31 and 9 more. Effective Oct 23, 2018
- [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 2007-17-17](https://openairdocs.org/ad/2007-17-17): Unsealed gaps on the pylon side of the engine firewall · Learjet 31, 31A, 35 and 7 more. Effective Oct 2, 2007
- [AD 2007-04-18](https://openairdocs.org/ad/2007-04-18): Left- and right-hand standby fuel pump switches · Learjet 23, 24, 24A and 25 more. Effective Mar 23, 2007
- [AD 2005-16-09](https://openairdocs.org/ad/2005-16-09): Flappers. · Learjet 23, 24, 25 and 2 more. Effective Sep 13, 2005
- [AD 2005-13-36](https://openairdocs.org/ad/2005-13-36): Center ball of the aileron control cable · Learjet 23, 24, 24A and 21 more. Effective Aug 9, 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 2004-03-08](https://openairdocs.org/ad/2004-03-08): Drag Angles of Fuselage and Engine Pylons · Learjet 31, 31A, 35 and 3 more. Effective Mar 15, 2004
- [AD 2001-07-11](https://openairdocs.org/ad/2001-07-11): Main Landing Gear Tires · Learjet 23, 24, 24A and 25 more. Effective May 1, 2001
- [AD 2000-24-19](https://openairdocs.org/ad/2000-24-19): Flightcrew Oxygen Masks · Learjet 35, 35A (C-21A), 36 and 1 more. Effective Jan 4, 2001
- [AD 95-19-04 R1 RES](https://openairdocs.org/ad/95-19-04-R1-RES): Omega Navigation System · Learjet 35, 35A (C-21A), 36 and 4 more. Effective Mar 27, 2000
- [AD 96-19-13](https://openairdocs.org/ad/96-19-13): Operating Mach Limit · Learjet 35, 35A (C-21A), 36 and 1 more. Effective Oct 22, 1996
- [AD 95-22-01](https://openairdocs.org/ad/95-22-01): Fluorescent Lighting System · Aerospace Lighting Fluorescent lighting systems, A310-203, A310-204 and 74 more. Effective Dec 4, 1995
- [AD 95-20-03](https://openairdocs.org/ad/95-20-03): Airplane Flight Manual (AFM) - Altitude Limitations · Learjet 24, 24A, 24B and 24 more. Effective Nov 2, 1995
- [AD 92-19-12](https://openairdocs.org/ad/92-19-12): Oxygen Plumbing & Map Light Wires · Learjet 23, 24, 24A and 22 more. Effective Nov 17, 1992
- [AD 91-03-08](https://openairdocs.org/ad/91-03-08): Fluorescent Lighting Systems · Learjet 31, 35, 35A (C-21A) and 5 more. Effective Feb 12, 1991
- [AD 89-12-01](https://openairdocs.org/ad/89-12-01): Drag Chute Riser · Learjet 24, 24A, 24B and 22 more. Effective Jul 3, 1989
- [AD 86-05-05 R1](https://openairdocs.org/ad/86-05-05-R1): Battery Vent System · Learjet 23, 24, 24A and 20 more. Effective Jan 19, 1988
- [AD 87-04-06](https://openairdocs.org/ad/87-04-06): Autopilot/Flight Director · Learjet 35, 35A (C-21A), 36 and 4 more. Effective Mar 9, 1987
- [AD 87-02-06](https://openairdocs.org/ad/87-02-06): Engine Mounts · Learjet 35, 35A (C-21A), 36 and 4 more. Effective Feb 6, 1987
- [AD 86-22-05](https://openairdocs.org/ad/86-22-05): Flap Sector Mounting Brackets Inspection · Learjet 23, 24, 24A and 23 more. Effective Nov 10, 1986
- [AD 82-01-05 R2](https://openairdocs.org/ad/82-01-05-R2): Stall Warning Accelerometer Unit · Learjet 23, 24, 24A and 16 more. Effective Apr 10, 1986
- [AD 85-16-04](https://openairdocs.org/ad/85-16-04): Aileron · Raisbeck Mark IV performance system (STC SA766NW). Effective Sep 6, 1985
- [AD 80-19-11 R1](https://openairdocs.org/ad/80-19-11-R1): Automatic Flight Control and Stall Warning Systems · Learjet 23, 24, 24A and 20 more. Effective May 20, 1985
- [AD 84-19-06](https://openairdocs.org/ad/84-19-06): Tab Control System · Learjet 24, 24A, 24B and 22 more. Effective Oct 22, 1984
- [AD 83-08-03](https://openairdocs.org/ad/83-08-03): Hydraulic Pressure Line · Learjet 35 and 36. Effective May 3, 1983
- [AD 79-08-01 R1](https://openairdocs.org/ad/79-08-01-R1): Thrust Reversers · Learjet 35, 35A (C-21A), 36 and 1 more. Effective Apr 19, 1982
- [AD 81-13-07](https://openairdocs.org/ad/81-13-07): Change to AFM Fuel Starvation · Learjet 23, 24, 24A and 20 more. Effective Jun 25, 1981
- [AD 80-19-09 R1](https://openairdocs.org/ad/80-19-09-R1): Jet Pumps · Learjet 23, 24, 24A and 20 more. Effective Dec 11, 1980
- [AD 80-17-11](https://openairdocs.org/ad/80-17-11): Airspeed Warning Placard · Learjet 35, 35A (C-21A), 36 and 1 more. Effective Aug 28, 1980
- [AD 80-07-09](https://openairdocs.org/ad/80-07-09): Cabin Main Entrance Upper Door · Learjet 23, 24, 24A and 20 more. Effective May 1, 1980
- [AD 80-06-02](https://openairdocs.org/ad/80-06-02): Electrical System · Learjet 35, 35A (C-21A), 36 and 1 more. Effective Mar 24, 1980
- [AD 78-25-02](https://openairdocs.org/ad/78-25-02): Door Mechanism · Learjet 35 and 36. Effective Dec 14, 1978
- [AD 78-16-03](https://openairdocs.org/ad/78-16-03): Refrigeration Condenser Fan · Learjet 23, 24, 24A and 18 more. Effective Aug 17, 1978
- [AD 76-18-07](https://openairdocs.org/ad/76-18-07): Inverter Input Power · Learjet 24, 25, 35 and 1 more. Effective Sep 10, 1976

### Matched by engine (Garrett TFE731-2-2B)

None in force.

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

- [AD 95-25-03](https://openairdocs.org/ad/95-25-03) (historical): Deterioration of Flapper Valves of Tip Tank · Learjet 23, 24, 25 and 2 more. Effective Dec 27, 1995
- [AD 95-19-04](https://openairdocs.org/ad/95-19-04) (historical): Omega Navigation System · Learjet 35, 35A (C-21A), 36 and 4 more. Effective Oct 12, 1995

## Information bulletins (advisory) (5 in force)

- [SAIB 2026-07](https://openairdocs.org/saib/2026-07): MAIN LANDING GEAR ATTACH SECTION, Trunnion Pins. Issued Mar 19, 2026
- [SAIB NM-16-24](https://openairdocs.org/saib/NM-16-24): Fuselage: Main Plate/Skin. Issued Sep 15, 2016
- [SAIB NM-13-38](https://openairdocs.org/saib/NM-13-38): Flight Controls  Control Column Section. Issued Jun 24, 2013
- [SAIB NM-11-48](https://openairdocs.org/saib/NM-11-48): Ice and Rain Protection: Wing Transverse Duct Assembly. Issued Aug 22, 2011
- [SAIB CE-04-67](https://openairdocs.org/saib/CE-04-67): . Issued May 6, 2004

## NTSB investigations

None matched to N84FN.

## FAA accident and incident reports

None matched to N84FN.

## Service difficulty reports (6)

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 BHKR201309190001](https://openairdocs.org/sdr/BHKR201309190001), Sep 19, 2013: FIRE LOOP. OUT OF LIMITS. DURING CLIMBOUT THROUGH FL 185 FOR FL200 THE RT ENGINE FIRE LIGHT ILLUMINATED. ALL ENGINE INDICATIONS WERE NORMAL. RT ENGINE POWER LEVER WAS REDUCED TO IDLE IAW
- [SDR BHKR201309170001](https://openairdocs.org/sdr/BHKR201309170001), Sep 18, 2013: FIRE DETECTOR. LOOSE. DURING CLIMBOUT PASSING THROUGH FL170 FOR FL200 THE RT ENGINE FIRE LIGHT ILLUMINATED. LEVELED OFF ACFT AND REDUCED RT ENGINE POWER LEVER TO IDLE IAW MEMORY ITEM
- [SDR 2013FA0000273](https://openairdocs.org/sdr/2013FA0000273), May 9, 2013: PACKING. LEAKING. DURING LOW LEVEL TRACK, LEVEL FLIGHT, NOSE GEAR UNSAFE LIGHT CAME ON FOR ABOUT 2 MINUTES. DURING RTB AT ALTITUDE OF 12K, LIGHT CAME ON AGAIN AND HYDRAULIC PRESS
- [SDR BHKA20120521001](https://openairdocs.org/sdr/BHKA20120521001), May 21, 2012: UNKNOWN. UNKNOWN. DURING TAKEOFF ROLL, THE ACFT DRIFTED STRONGLY TO THE RIGHT ONCE NOSE WHEEL STEERING WAS DEACTIVATED AT APPROX 40KIAS. LEFT RUDDER WAS APPLIED, FOLLOWED QUICKLY
- [SDR 2011FA0000665](https://openairdocs.org/sdr/2011FA0000665), Oct 4, 2011: BRAKE SYS. MALFUNCTIONED. ON LANDING ROLLOUT, THE ACFT PULLING HARD TO RIGHT. COUNTERING WITH LT BRAKE PRESSURE, ABLE TO STOP ACFT IN 3,500 FT AND ABOUT 15 FT FROM THE RT SIDE OF THE RUN
- [SDR 2011FA0000611](https://openairdocs.org/sdr/2011FA0000611), Sep 21, 2011: CABIN PRESSURE. MALFUNCTIONED. PASSING 27,000 FEET MSL, THE CABIN PRESSURE BEGAN RISING UNCONTROLLABLY, WITH THE CABIN VSI INDICATING +6,000. PUSHED THE UP-DN MANUAL CONTROL (CHERRY PICKER) D

## STCs that may be installed (OpenAirDocs) (186, 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 (Gates Lear Jet 36)

- [STC ST01305WI-D](https://openairdocs.org/stc/ST01305WI-D): Modification of a Collins ALT-50A or ALT-55B Radio Altimeter system installation to a Collins ALT-1000 or ALT-4000 Radio Altimeter system installation in accordance with Collins Drawing Index as listed on AML No. ST01305WI-D, Revision -, or later FAA approved revision. Rockwell Collins Inc
- [STC ST12461IB](https://openairdocs.org/stc/ST12461IB): Installation of Cockpit Voice Recorder with optional RIPS Upgrade. Mid- Canada Mod Center
- [STC SA2622NM](https://openairdocs.org/stc/SA2622NM): Installation of Precise Flight Pulselite Control Unit in landing/taxi system. (767-200 B17) (DHC-8 101). Precise Flight Inc
- [STC ST03885AT](https://openairdocs.org/stc/ST03885AT): Installation of an Avionica, Inc. avCM Cellular Module. Aircraft Systems and Manufacturing Inc
- [STC ST02416SE](https://openairdocs.org/stc/ST02416SE): Installation of the replacement rate gyro, Butler National Part Number 501-1169-01 MOD A or 501-1169-02 MOD A. Symetric Industries, DBA Extant Aerospace
- [STC ST02417SE](https://openairdocs.org/stc/ST02417SE): Installation of the replacement stall warning vertical accelerometer, Butler National Part Number 02904001-101. Symetric Industries, DBA Extant Aerospace
- [STC ST02515SE](https://openairdocs.org/stc/ST02515SE): Installation of the replacement vertical accelerometer, Butler National Part Number 501-1287-02 MOD A. Symetric Industries, DBA Extant Aerospace
- [STC ST02472AT](https://openairdocs.org/stc/ST02472AT): Installation of a mini Quick Access Recorder (QAR) model MKI, MKII, or MKIII. Aircraft Systems and Manufacturing Inc
- [STC ST00738WI](https://openairdocs.org/stc/ST00738WI): Increased service life. Data required. Phoenix Air Group Inc
- [STC ST02036WI](https://openairdocs.org/stc/ST02036WI): Installation of an additional Garmin G700 TXi Primary Flight Display or Multifunction Display. Butler National Corporation
- [STC ST01138DE](https://openairdocs.org/stc/ST01138DE): Installation of MidContinent MD23 standby altimeter and/or attitude indicators. Butler National Corporation
- [STC ST01083DE](https://openairdocs.org/stc/ST01083DE): Installation of the Aviation Clean Air Airborne Air & Surface Purification System. Lee Aerospace, Inc
- [STC ST04728NY](https://openairdocs.org/stc/ST04728NY): Installation of LAI CoolView Cabin Window. Lee Aerospace Inc
- [STC SA709NE](https://openairdocs.org/stc/SA709NE): Installation of Marquardt MTR-101 Tow Reel System. Phoenix Air Group Inc
- [STC ST00814WI](https://openairdocs.org/stc/ST00814WI): Landing Gear Life Extension. Phoenix Air Group Inc
- [STC ST00999WI](https://openairdocs.org/stc/ST00999WI): Installation of Special Mission Power and Control Wiring, provisions for Carriage of Mission Stores with Hardpoints installed by STC SA1604SO or SA1670CE, and Takeoff weight increased to 16,300 lbs. Phoenix Air Group Inc
- [STC ST10217SC](https://openairdocs.org/stc/ST10217SC): Approval of underwing stores including carriage of the MTR101 Tow Reel System (and targets) on the Strongback-Lear (Sentel) hardpoint. Phoenix Air Group Inc
- [STC ST03424CH](https://openairdocs.org/stc/ST03424CH): Certification of Automatic Dependent Surveillance - Broadcast (ADS-B) Out System with Rockwell Collins TDR-94/-94D Transponders. CMD Flight Solutions LLC
- [STC ST01517WI](https://openairdocs.org/stc/ST01517WI): Installation of the Glareshield LED Lighting System. Global Aviation Tech LLC
- [STC ST01602WI](https://openairdocs.org/stc/ST01602WI): Installation of Luminescent Overlay panels upgrade. Global Aviation Tech LLC
- [STC ST04393CH](https://openairdocs.org/stc/ST04393CH): Avionics upgrade installation of a Garmin GTN (TM) 750 Touchscreen Navigator interfaced to existing pilot side instruments and existing FC-200 or FC-530/-550 Autopilot and added GWX (TM) 70 Weather Radar. The Garmin GTN (TM) 750 GPS is paired with the added GTX (TM) 345R (or GTX 33/33D) Transponders for Automatic Broadcast Surveillance (ADS-B) OUT and ADS-B IN (GDL-88) capability with wireless download connectivity utilizing Garmin Connext®. Optional second Garmin GTN (TM) 650/750 interfaced to existing copilot side instruments only. Royal Air Inc
- [STC ST01070DE](https://openairdocs.org/stc/ST01070DE): Installation of the Curtiss-Wright Fortress Flight Data Recorder (with Cockpit Voice Recorder). Peregrine
- [STC ST01682WI](https://openairdocs.org/stc/ST01682WI): Installation of Heads Up Technologies (HUT) Cabin Entertainment System (CES). Heads Up Technologies Inc
- [STC ST00098IB](https://openairdocs.org/stc/ST00098IB): Introduction of ADS-B Out. STC Twenty One Limited
- [STC ST02004WI](https://openairdocs.org/stc/ST02004WI): Installation of the Garmin GI-275 Instantaneous Vertical Speed Indicators (IVSI). Peregrine
- [STC ST02635AT](https://openairdocs.org/stc/ST02635AT): Deactivation of Aeronca (Learjet) Thrust Reversers. Summit Aviation Inc
- [STC ST01881WI](https://openairdocs.org/stc/ST01881WI): Installation of the Garmin GTS 8000 TCAS II System and Dual GTX 3000 Transponders for ADS-B Out Compliance and Interface of factory installed FC-530 Autopilot System to Single/Dual GTN 7XX/6XX Navigators. Avcon Industries Inc
- [STC ST02230SE](https://openairdocs.org/stc/ST02230SE): The installation of dual Garmin GTX-33ES Mode-S transponders and single or dual Garmin GTN 650/750 panel mounted navigation and global positioning system (GPS) units, or dual Garmin GTX-335R and/or GTX-345R Mode-S transponders and single or dual Garmin GTN 650/750/625/725 panel mounted navigation and GPS units. Butler National Corporation
- [STC ST01930LA](https://openairdocs.org/stc/ST01930LA): Installation of Sandel Avionics SN4500 Electronic Horizontal Situation Indicator (EHSI). Sandel Avionics LLC
- [STC ST01102WI](https://openairdocs.org/stc/ST01102WI): Installation of a Universal Avionics MFD-640 Multi-Function Display. Blackhawk Aerospace Technologies Inc
- [STC ST01103WI](https://openairdocs.org/stc/ST01103WI): Installation of a Universal Avionics (TAWS) Terrain Awareness and Avoidance System. Blackhawk Aerospace Technologies Inc
- [STC ST04481CH](https://openairdocs.org/stc/ST04481CH): Replacement of similar functioning circuit and switch for obsolete steering interface unit (SIU) in accordance with Butler National Master Data List 0200 I 020 Revisio n (A) , dat ed 14 MAY 2021, or later FAA Approved Revision. Butler National Corporation
- [STC ST04177AT](https://openairdocs.org/stc/ST04177AT): Installation of a Talon Aerospace LED Replacement General Purpose Lamps. Aaxico Technical Services Inc
- [STC ST01926WI](https://openairdocs.org/stc/ST01926WI): Interface of factory installed FC-530/FC-535 Autopilot System to Single/Dual GTN 750/650 Navigators. Avcon Industries Inc
- [STC ST04447CH](https://openairdocs.org/stc/ST04447CH): Installation of Garmin GTS (TM) 8000 TCAS/ACAS II Traffic Surveillance system, dual GTX (TM) 3000 Mode-S Extended Squitter Transponders and GDL® 88 receiver for a complete ADS-B In/Out capability and a Flight Stream 210 for wireless download connectivity using Garmin Connext®. Installation in accordance with Royal Air Master Document List No. RACB-MDL-3000, Revision A, dated January 06, 2020, or later FAA approved revision. Royal Air Inc
- [STC ST02635LA](https://openairdocs.org/stc/ST02635LA): Modification to replace the existing Mode S Transponder system with the ACSS NXT-600 Mode S Transponder with ADS-B Out. Aviation Communication and Surveillance Systems (ACSS) LLC
- [STC ST02681AT-D](https://openairdocs.org/stc/ST02681AT-D): Installation of Cockpit / Cabin Blower Assy. Summit Aviation Inc
- [STC SA01452CH](https://openairdocs.org/stc/SA01452CH): Installation of an air ambulance conversion kit. Med-Pac Inc
- [STC ST01178WI](https://openairdocs.org/stc/ST01178WI): Installation of PWI Electrode Inverter, Glareshield Lighting System. PWI Inc
- [STC ST00882DE](https://openairdocs.org/stc/ST00882DE): Installation of Becker Avionics BXT6553 transponder. Peregrine
- [STC ST02455SE](https://openairdocs.org/stc/ST02455SE): Installation of Dual GTX-3000 Transponders, GDL-88 Automatic Dependent Surveillance-Broadcast (ADS-B) (In) with Wide Area Augmentation System (WAAS) Global Positioning System (GPS) sensor and Flight Stream 210 Bluetooth Connectivity installed for ADS-B (Out) compliance. Butler National Corporation
- [STC ST04340NY](https://openairdocs.org/stc/ST04340NY): Installation of TCAS 7.1 (ACAS II) upgrade of Prior Existing TCAS 7.0. Scandinavian Avionics Design ApS
- [STC ST00835DE](https://openairdocs.org/stc/ST00835DE): Installation of Automatic Dependent Surveillance - Broadcast (ADS-B) Out and In functionality using the Garmin GTX 335R and GTX 345R Transponders plus qualified position sensor. Peregrine
- [STC SA4836SW](https://openairdocs.org/stc/SA4836SW): Installation of TR4000 thrust reversers. The NORDAM Group LLC
- [STC SA4999NM](https://openairdocs.org/stc/SA4999NM): Installation of lifeport patient loading and support system. LifePort LLC
- [STC SA1639GL](https://openairdocs.org/stc/SA1639GL): Install air ambulance conversion. Spectrum Aeromed LLC dba Spectrum Aeromed
- [STC ST00790DE](https://openairdocs.org/stc/ST00790DE): Installation of BendixKing CAS 67B Traffic Alert and Collision Avoidance System (TCAS) II Version 7.1. Peregrine
- [STC ST02636LA](https://openairdocs.org/stc/ST02636LA): Modification to upgrade the existing XS-950 Mode S Transponder system to add ADS-B Out. Aviation Communication and Surveillance Systems (ACSS) LLC
- [STC ST01122SE-D](https://openairdocs.org/stc/ST01122SE-D): Group aircraft approval for Reduced Vertical Separation Minimum (RVSM). Avcon Industries Inc
- [STC SA2475CE](https://openairdocs.org/stc/SA2475CE): Installation of provisions for a cabin centerline mounted camera with an in-flight opening door. Avcon Industries, Inc

All 186: https://openairdocs.org/aircraft/N84FN/stcs.md

## Related

- Other Gates Lear Jet 36 aircraft: https://openairdocs.org/model/gates-lear-jet-36/aircraft.md
- The Garrett TFE731-2-2B engine: https://openairdocs.org/engine/garrett-tfe731-2-2b.md

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