# Gates Lear Jet 25B - Type: Aircraft model (FAA registry) - Registry code: 5170511 - Manufacturer (registry): GATES LEAR JET - Model: 25B - Aircraft type: Fixed wing multi engine - Category: Airplane - Engines: 2 · Turbo-jet - Seats: 10 - Weight class: 12,500 to 19,999 lb - Cruise speed: 388 mph - Certification: Type certificated - Data sheet: [TCDS A10CE](https://openairdocs.org/tcds/A10CE) (OpenAirDocs) - Holder: Learjet Inc. - Registered aircraft: 12 - Page: https://openairdocs.org/model/gates-lear-jet-25b Model codes come from the FAA registry's reference file. ADs are matched to them by model name and maker. ## ADs that may apply (OpenAirDocs) Matched to this model by model name and maker. Each AD's applicability may narrow it by serial number, part number or equipment. - [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 2005-23-06](https://openairdocs.org/ad/2005-23-06): Thrust reverser hydraulic system · Engine thrust reversers (NORDAM Group STC SA1669SW or 2 others). Effective Dec 19, 2005 - [AD 2005-23-03](https://openairdocs.org/ad/2005-23-03): Spherical accumulator for the main hydraulic system · Learjet 23, 24, 24A and 14 more. Effective Dec 19, 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 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 99-16-03](https://openairdocs.org/ad/99-16-03): Horizontal Stabilizer Anti-Ice System · Learjet 23, 24, 24A and 22 more. Effective Sep 7, 1999 - [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 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 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 82-01-04 R2](https://openairdocs.org/ad/82-01-04-R2): Horizontal Stabilizer Trim Actuator · Learjet 25, 25A, 25B and 1 more. Effective Apr 7, 1986 - [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 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 80-26-02](https://openairdocs.org/ad/80-26-02): AFCS/AFC-SS Pitch Function · Learjet 23, 24, 24A and 16 more. Effective Jan 15, 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 80-07-09](https://openairdocs.org/ad/80-07-09): Cabin Main Entrance Upper Door · Learjet 23, 24, 24A and 20 more. Effective May 1, 1980 - [AD 79-12-05](https://openairdocs.org/ad/79-12-05): Stall Warning Systems · Learjet 24, 24A, 24B and 13 more. Effective Nov 6, 1979 - [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 77-19-02](https://openairdocs.org/ad/77-19-02): Cabin Door Locking Mechanism · Learjet 23, 24, 24A and 14 more. Effective Jul 20, 1978 - [AD 75-15-06](https://openairdocs.org/ad/75-15-06): Landing Gear Struts · Learjet 23, 24, 24A and 14 more. Effective Jul 25, 1975 ## Information bulletins (advisory) (3) - [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 ## Registered aircraft (12) - [N102VS](https://openairdocs.org/aircraft/N102VS): [Calspan Corp](https://openairdocs.org/faa-owner/CALSPAN%20CORP), [Buffalo, NY](https://openairdocs.org/faa-place/NY/Buffalo), built 1974, S/N 180 - [N143CK](https://openairdocs.org/aircraft/N143CK): [Wings Over Texas Holdings LLC](https://openairdocs.org/faa-owner/WINGS%20OVER%20TEXAS%20HOLDINGS%20LLC), [Denton, TX](https://openairdocs.org/faa-place/TX/Denton), built 1973, S/N 143 - [N166PC](https://openairdocs.org/aircraft/N166PC): [Technical Education Services Inc](https://openairdocs.org/faa-owner/TECHNICAL%20EDUCATION%20SERVICES%20INC), [Virginia Beach, VA](https://openairdocs.org/faa-place/VA/Virginia%20Beach), built 1970, S/N 166 - [N251TS](https://openairdocs.org/aircraft/N251TS): [Lopez Fabio A](https://openairdocs.org/faa-owner/LOPEZ%20FABIO%20A), [Denver, NC](https://openairdocs.org/faa-place/NC/Denver), built 1975, S/N 201 - [N26AT](https://openairdocs.org/aircraft/N26AT): [Del Mar College](https://openairdocs.org/faa-owner/DEL%20MAR%20COLLEGE), [Corpus Christi, TX](https://openairdocs.org/faa-place/TX/Corpus%20Christi), built 1973, S/N 130 - [N49WA](https://openairdocs.org/aircraft/N49WA): [Fleet Unlimited Inc](https://openairdocs.org/faa-owner/FLEET%20UNLIMITED%20INC), [Pasadena, CA](https://openairdocs.org/faa-place/CA/Pasadena), built 1973, S/N 142 - [N606SM](https://openairdocs.org/aircraft/N606SM): [Technical Education Services Inc](https://openairdocs.org/faa-owner/TECHNICAL%20EDUCATION%20SERVICES%20INC), [Virginia Beach, VA](https://openairdocs.org/faa-place/VA/Virginia%20Beach), built 1974, S/N 185 - [N752EA](https://openairdocs.org/aircraft/N752EA): [Air Alliance Gt LLC](https://openairdocs.org/faa-owner/AIR%20ALLIANCE%20GT%20LLC), [Lewes Sussex, DE](https://openairdocs.org/faa-place/DE/Lewes%20Sussex), built 1973, S/N 137 - [N911AJ](https://openairdocs.org/aircraft/N911AJ): [Mordtair Corp](https://openairdocs.org/faa-owner/MORDTAIR%20CORP), Harare, S/N 163 - [N91PN](https://openairdocs.org/aircraft/N91PN): [Aero Nash Inc](https://openairdocs.org/faa-owner/AERO%20NASH%20INC), [Missoula, MT](https://openairdocs.org/faa-place/MT/Missoula), S/N 091 - [N924BW](https://openairdocs.org/aircraft/N924BW): [Wings Over Texas Holdings LLC](https://openairdocs.org/faa-owner/WINGS%20OVER%20TEXAS%20HOLDINGS%20LLC), [Denton, TX](https://openairdocs.org/faa-place/TX/Denton), built 1974, S/N 158 - [N927FW](https://openairdocs.org/aircraft/N927FW): [Technical Education Services Inc DBA](https://openairdocs.org/faa-owner/TECHNICAL%20EDUCATION%20SERVICES%20INC%20DBA), [Virginia Beach, VA](https://openairdocs.org/faa-place/VA/Virginia%20Beach), built 1976, S/N 203 ## NTSB investigations (20) From the NTSB's public API. Aircraft are matched to registry aircraft by N-number and event date, checked against the reported serial number, make and model; the registry's history has gaps, so older matches can be wrong. Compare the reported make and model. - [NTSB WPR11FA052](https://openairdocs.org/ntsb/WPR11FA052), Nov 17, 2010: Gates Lear Jet 25B (N25PJ), Portland, OR, substantial damage. Probable cause: The failure of the flight crew to stop the airplane on the runway due to the flying pilot’s failure to attain the proper touchdown point. Contributing to the accident was an anti-skid system that was… - [NTSB CHI05LA047](https://openairdocs.org/ntsb/CHI05LA047), Dec 20, 2004: Learjet 25B (N252BK), Cedar Rapids, IA, substantial damage. Probable cause: The pilot was not able to maintain directional control of the airplane due to the failure of the nose gear strut seal which prevented the nose wheel from centering. A factor associated with the… - [NTSB DEN04LA138](https://openairdocs.org/ntsb/DEN04LA138), Sep 4, 2004: Gates Learjet 25B (N47MR), Colorado Spring, CO, substantial damage. Probable cause: right main tire failure for reasons undetermined. - [NTSB ANC04FA026](https://openairdocs.org/ntsb/ANC04FA026), Feb 21, 2004: Gates Learjet 25B (N24RZ), Ft. Lauderdale, FL, substantial damage. Probable cause: The pilot in command's misjudged distance/speed while landing, and the flightcrew's failure to follow prescribed emergency procedures, which resulted in a runway overrun and subsequent collision with… - [NTSB FTW03FA229](https://openairdocs.org/ntsb/FTW03FA229), Sep 19, 2003: Learjet 25B (N666TW), Del Rio, TX, destroyed, 1 fatal. Probable cause: The pilot's misjudged distance and speed during the approach to landing, and his failure to obtain the proper touchdown point resulting in an overrun. A contributing factor was the pilot's failure to… - [NTSB IAD02FA018](https://openairdocs.org/ntsb/IAD02FA018), Nov 22, 2001: Gates Learjet 25B (N5UJ), Pittsburgh, PA, destroyed, 2 fatal. Probable cause: The (undetermined) pilot-at-the-controls' early, and over rotation of the airplane's nose during the takeoff attempt, and his failure to maintain directional control. Also causal, was the captain's… - [NTSB WAS02WA004](https://openairdocs.org/ntsb/WAS02WA004), Oct 27, 2001: Learjet 25B (N715MH), Ciudad Victoria, Mexico, substantial damage - [NTSB ATL01LA030](https://openairdocs.org/ntsb/ATL01LA030), Feb 4, 2001: Learjet 25B (N48WA), Ft. Pierce, FL, substantial damage. Probable cause: The mechanic's failure to properly install and secure the left main landing gear aft trunnion pin in accordance with procedures. - [NTSB FTW98MA096](https://openairdocs.org/ntsb/FTW98MA096), Jan 13, 1998: Gates Learjet 25B (N627WS), Houston, TX, destroyed, 2 fatal. Probable cause: The flight crew's continued descent of the airplane below the glideslope and through the published decision height without visual contact with the runway environment. Also, when the captain… - [NTSB CHI92FA170](https://openairdocs.org/ntsb/CHI92FA170), Jun 12, 1992: Gates Learjet 25B (N38DJ), Sheboygan Falls, WI, destroyed, 2 fatal. Probable cause: THE COPILOT'S PREMATURE LIFTOFF AND THE CAPTAIN'S INADEQUATE REMEDIAL ACTION RESULTING IN LOSS OF AIRCRAFT CONTROL AT LOW ALTITUDE. - [NTSB LAX92LA069](https://openairdocs.org/ntsb/LAX92LA069), Dec 23, 1991: Gates Learjet Lear 25B (N44PA), Carlsbad, CA, substantial damage. Probable cause: THE PILOT NOT ATTAINING THE PROPER TOUCHDOWN POINT BECAUSE OF EXCESSIVE ALTITUDE AND AIRSPEED, AND THE PILOT'S FAILURE TO PERFORM A GO-AROUND. A FACTOR IN THIS ACCIDENT WAS THE ROUGH AND UNEVEN… - [NTSB NYC91LA163](https://openairdocs.org/ntsb/NYC91LA163), Jul 2, 1991: Learjet LR25B-XR (N458J), Columbus, OH, substantial damage. Probable cause: THE FAILURE OF THE PILOT TO MAINTAIN VISUAL REFERENCE WITH THE RUNWAY DURING A LANDING, WHICH RESULTED IN A LOSS OF DIRECTIONAL CONTROL. ALSO CAUSAL TO THE ACCIDENT WAS THE PILOT'S FAILURE TO… - [NTSB SEA89LA020](https://openairdocs.org/ntsb/SEA89LA020), Nov 17, 1988: Gates Learjet 25B (N143CK), Bend, OR, substantial damage - [NTSB NYC83FA214](https://openairdocs.org/ntsb/NYC83FA214), Aug 17, 1983: Gates Learjet 25B (N108PA), Wilmington, DE, substantial damage - [NTSB FTW80AA064](https://openairdocs.org/ntsb/FTW80AA064), Apr 11, 1980: Lear Jet 25B (N25TA), Conlon, TX, destroyed, 2 fatal - [NTSB DEN79FA048](https://openairdocs.org/ntsb/DEN79FA048), Jul 6, 1979: Lear Jet 25B (N40BC), Pueblo, CO, destroyed, 2 fatal - [NTSB IAD77AA065](https://openairdocs.org/ntsb/IAD77AA065), Sep 8, 1977: Learjet 25B (N999HG), Sanford, NC, destroyed, 5 fatal - [NTSB CHI77FA045](https://openairdocs.org/ntsb/CHI77FA045), May 26, 1977: Lear Jet 25B (N501PS), Detroit, MI, destroyed - [NTSB CHI76AC001](https://openairdocs.org/ntsb/CHI76AC001), Jul 3, 1975: Gates Lear 25B (N428JX), Oston, IN, destroyed - [NTSB DEN75AD007](https://openairdocs.org/ntsb/DEN75AD007), Aug 31, 1974: Gates Lear 25B (N366AA), Briggsdale, CO, destroyed, 4 fatal ## FAA accident and incident reports (45) From the FAA Accident/Incident Data System. Reports are matched to registry aircraft by N-number and event date, checked against the reported make and model; the registry's history has gaps, so older matches can be wrong. Compare the reported make and model. - [Incident 20160306007619I](https://openairdocs.org/incident/20160306007619I), Mar 6, 2016: Gates Lear Jet 25B (N10VG), Palm Springs, CA, No damage. Aircraft departed igm going to ont. During initial descent smoke was seen in the cockpit. An emergency was declared and the aircraft rerouted to psp. The smoke… - [Accident 20101117051869A](https://openairdocs.org/incident/20101117051869A), Nov 17, 2010: Gates Lear 25B (N25PJ), Hillsboro, OR, Substantial damage. Aircraft was on vor/dme-c approach in IFR, inbound for landng. Controllers reported wind 180 at 10 gusting to 16, field was IFR, visibilty 2.5 miles, rain, wet… - [Accident 20041220033989A](https://openairdocs.org/incident/20041220033989A), Dec 20, 2004: Lear 25B (N252BK), Cedar Rapids, IA, Substantial damage. (-23) Aircraft departed cid, experienced an unsafe nose gear retraction indication, cycled gear several times with the same result, and landed at cid on runway… - [Accident 20040904022989A](https://openairdocs.org/incident/20040904022989A), Sep 4, 2004: Lear 25B (N47MR), Colorado Spring, CO, Substantial damage. (-23) On sept. 4, 2004, at Colorado Springs airport, Colorado, two crew and one passenger (life guard flight) were taking off in a Lear 25B on runway 17L when… - [Incident 20040518009289I](https://openairdocs.org/incident/20040518009289I), May 18, 2004: Lear 25B (N239CA), Laredo, TX, Minor damage. (-23) While enroute from lrd to mmto the flight crew observed a fire indication on the number 2 engine. The crew was able to extinguish the fire indication… - [Accident 20040220001759A](https://openairdocs.org/incident/20040220001759A), Feb 20, 2004: Lear 25B (N24RZ), Ft Lauderdale, FL, Substantial damage. (-23) Aircraft departed luis munoz marin int'l airport in san juan, puerto rico to ft. Lauderdale executive airport (fxe). Pilot contacted fxe tower and stated… - [Accident 20030919034939A](https://openairdocs.org/incident/20030919034939A), Sep 19, 2003: Lear 25B (N666TW), Del Rio, TX, Destroyed, 1 fatal. (-23) The aircraft attempted landing at 3,800 ft beyond landing threshold of a 5,000 ft runway overshot and crashed. The aircraft burned on impact. - [Incident 20030217003879I](https://openairdocs.org/incident/20030217003879I), Feb 17, 2003: Lear 25B (N20NW), Juneau, AK, Minor damage. (-23) N20NW while departing sitka AK crew believed they had blown a tire. Diverted to Juneau, AK landed w/o further incident. The lmg inboard tire had lost the… - [Incident 20020814020789I](https://openairdocs.org/incident/20020814020789I), Aug 14, 2002: Lear 25B (N350JH), Nashville, TN, Minor damage. (-23) Pilot was executing a normal takeoff. Approaching v-rotation speed (approx. 120-125 knots) pilot says he heard a loud crack like a rifle shot then a loud… - [Accident 20011122036819A](https://openairdocs.org/incident/20011122036819A), Nov 22, 2001: Lear 25B (N5UJ), Pittsburgh, PA, No damage, 2 fatal. (-23) On November 22, 2001, aircraft N5UJ, a Lear 25B, crashed on takeoff at Pittsburgh international airport. The aircraft was on a title 14 part 91 flight to… - [Accident 20011026030099A](https://openairdocs.org/incident/20011026030099A), Oct 26, 2001: Lear 25B (N715MH), Ciudad Victoria, Mexico, No damage. (.19) On October 26, 2001, at 1930 central daylight time, a Learjet 25B transport category airplane, N715MH, was substantially damaged when both main landing… - [Incident 20010426010599I](https://openairdocs.org/incident/20010426010599I), Apr 26, 2001: Lear 25B (N252BK), Saint George, UT, Minor damage. (-23) After landing, the flight crew could not keep the aircraft on the runway. It departed the left side of runway 16, hitting a taxiway sign, causing minor… - [Accident 20010204005509A](https://openairdocs.org/incident/20010204005509A), Feb 4, 2001: Lear 25B (N48WA), Fort Pierce, FL, Substantial damage. (-23)See attached inspector's statement (.4) on February 4, 2001, at 1324 EST, a Learjet 25B, N48WA, skidded off the runway at st. Lucie county international… - [Incident 20001228024049I](https://openairdocs.org/incident/20001228024049I), Dec 28, 2000: Lear 25B (N2094L), Erie, PA. (-23) Pilot stated that on takeoff roll, he experienced gusty crosswinds. He applied corrective action, but when the a/c drifted to the right, he retarded the… - [Incident 20000517022379I](https://openairdocs.org/incident/20000517022379I), May 17, 2000: Lear 25B (N239CA), Louisville, KY, Minor damage. (-23) No narrative available. - [Incident 19990122016119I](https://openairdocs.org/incident/19990122016119I), Jan 22, 1999: Lear 25B (N8005Y), Pontiac, MI, Minor damage. (-5)When attempting second approach to ptk, runway 9R ILS, pilot was off center - attempted to correct and land. Pilot overshot during corrective maneuver,… - [Accident 19980113000289A](https://openairdocs.org/incident/19980113000289A), Jan 13, 1998: Lear 25B (N627WS), Houston, TX, Destroyed, 2 fatal. Acft lost radio and radar contact on 2 mile final to rwy 26 and crashed und unk circ. Houston, TX. (.19) on January 13, 1998, at 0810 central standard time, a… - [Incident 19971112042309I](https://openairdocs.org/incident/19971112042309I), Nov 12, 1997: Lear 25B (N111MP), Dallas-Ft Worth, TX. Narrative: FAR 135 flight inbound to dfw from jackson, ms noted that the nose gear had an unsafe light. Pilot declared an emergency. On landing, the crew… - [Incident 19961220042869I](https://openairdocs.org/incident/19961220042869I), Dec 20, 1996: Lear 25B (N8005Y), Denver, CO. Exited runway landing. Held off touchdown due traffic. Landed thrust reverser anti skid failed. Faulty squat switch - [Incident 19961009037759I](https://openairdocs.org/incident/19961009037759I), Oct 9, 1996: Lear 25B (N67HB), Pittsburgh, PA, Minor damage. Narrative: pilot stated that aircraft veered off runway to the left on landing. Aircraft sustained minor damage; flight crew was not injured. Inspection of… - [Incident 19951004035469I](https://openairdocs.org/incident/19951004035469I), Oct 4, 1995: Lear 25B (N47MR), Oklahoma City, OK, Minor damage. Narrative: on 10-04-95, at approximately 0100 hours local time, Learjet 25B, N47MR, piloted by john c. dudeck, #ATP565753035, attempted to land at Will Rogers… - [Incident 19950925043479I](https://openairdocs.org/incident/19950925043479I), Sep 25, 1995: Lear 25B (N98RS), Ft Worth, TX, Minor damage. Narrative: during climb, noticed 2 red unsafe lights after gear retraction. Recycled landing gear several times with same result. After numerous low passes at… - [Incident 19940616028949I](https://openairdocs.org/incident/19940616028949I), Jun 16, 1994: Lear 25B (N88BY), New Orleans, LA, Minor damage. Both main landing gear tires ruptured on takeoff roll. Aborted. Stopped on runway. - [Incident 19930828038789I](https://openairdocs.org/incident/19930828038789I), Aug 28, 1993: Lear 25B (N2094L), Kansas City, MO, Minor damage. On l;anding rollout aircraft struck a coyote. Right landing gear door damaged. - [Accident 19920612019879A](https://openairdocs.org/incident/19920612019879A), Jun 12, 1992: Lear 25B (N38DJ), Sheboygan, WI, Destroyed, 2 fatal. Rolled on premature takeoff. Dragged wing flipped over. Indicates pilot gave sec an engine out below VMC. - [Incident 19920318014989I](https://openairdocs.org/incident/19920318014989I), Mar 18, 1992: Lear 25B (N77KW), Austin, TX. Experienced inboard tire failure on landing rollout. Aircraft veered off and back on the runway. - [Accident 19911223057119A](https://openairdocs.org/incident/19911223057119A), Dec 23, 1991: Lear 25B (N44PA), Carlsbad, CA, Substantial damage. Landed long and fast. Delayed opening drag chute. Ran off end runway down a rough hill. Gear came through wings. - [Incident 19910930052829I](https://openairdocs.org/incident/19910930052829I), Sep 30, 1991: Lear 25B (N26AT), El Paso, TX, Minor damage. Both left main tires blew on takeoff roll. Aborted. Stopped on runway. - [Incident 19910811039019I](https://openairdocs.org/incident/19910811039019I), Aug 11, 1991: Lear 25B (N102VS), Buffalo, NY. Lost throttle control on NR1 engine. Shut engine down and returned. Throttle cable loose at fuel control unit. - [Accident 19910701025199A](https://openairdocs.org/incident/19910701025199A), Jul 1, 1991: Lear 25B (N458J), Columbus, OH, Substantial damage. Heavy rain on flare for landing hid view of runway. Ran off edge. Collapsed right gear. - [Incident 19901204060509I](https://openairdocs.org/incident/19901204060509I), Dec 4, 1990: Lear 25B (N458J), Newark, NJ. Pilot stated unable to see when encountered rain on takeoff roll. Aborted and veered right hitting 3 runway lights. - [Incident 19900914048979I](https://openairdocs.org/incident/19900914048979I), Sep 14, 1990: Lear 25B (N77KW), Dallas, TX, Minor damage. Tire blew on takeoff. Right brake failed at destination and aircraft ran off runway. Brake hose broken by tire. - [Accident 19881117050969A](https://openairdocs.org/incident/19881117050969A), Nov 17, 1988: Lear 25B (N143CK), Redmond, OR, Substantial damage. Unable to stop on icy runway, skidded off end into a ditch. UNICOM operator failed to advise flight of iced runway. - [Incident 19880322021649I](https://openairdocs.org/incident/19880322021649I), Mar 22, 1988: Lear 25B (N688GS), Smyrna, TN, Minor damage. Forgot to lower the landing gear. Landed gear up. - [Incident 19880113007069I](https://openairdocs.org/incident/19880113007069I), Jan 13, 1988: Lear 25B (N145SH), Ft Lauderdale, FL, Minor damage. Nosewheel shimmy on landing. Unable to control aircraft. Veered off runway. Nosewheel steering malfunctioned. - [Incident 19870405028579I](https://openairdocs.org/incident/19870405028579I), Apr 5, 1987: Lear 25B (N44PA), Fresno, CA. During climb the left engine oil pressure decreased. Engine shutdown,diverted. Starter generator oil seals leaking - [Incident 19840930066419I](https://openairdocs.org/incident/19840930066419I), Sep 30, 1984: Lear 25B (N145SH), Brunswick, GA. While taxiing into sun with windshield fogged pilot missed turnoff for runway. Stuck in wet grassy area. - [Accident 19830817075699A](https://openairdocs.org/incident/19830817075699A), Aug 17, 1983: Lear 25B (N108PA), Wilmington, DE, Substantial damage. Double engine flame out on climbing steep turnout to avoid birds. Bird residue on engines. Engine airflow reduced. - [Accident 19800411026429A](https://openairdocs.org/incident/19800411026429A), Apr 11, 1980: Lear 25B (N25TA), Conlon, TX, Destroyed. Investigation indicates possible runway pitch trim. Spoilers were deployed. Would aggrevate full nose down trim. - [Accident 19790706041169A](https://openairdocs.org/incident/19790706041169A), Jul 6, 1979: Lear 25B (N40BC), Pueblo, CO, Destroyed. Ballooned on landing. Began power correction, nose high. Rolled over prior to impact. Pilot's heel caught in pedal. - [Incident 19781126024499I](https://openairdocs.org/incident/19781126024499I), Nov 26, 1978: Lear 25B (N25TA), New Orleans, LA, Minor damage. When crossing threshold pilot heard thump as birds crossed path. Bird strike to craft. - [Accident 19770908043549A](https://openairdocs.org/incident/19770908043549A), Sep 8, 1977: Lear 25B (N999HG), NC, Destroyed - [Accident 19770526038489A](https://openairdocs.org/incident/19770526038489A), May 26, 1977: Lear 25B (N501PS), MI, Substantial damage - [Accident 19750703023359A](https://openairdocs.org/incident/19750703023359A), Jul 3, 1975: Lear 25B (N428JX), Oston, IN, Destroyed. Both engines at or near t.o. pwr at impact. - [Accident 19740831040719A](https://openairdocs.org/incident/19740831040719A), Aug 31, 1974: Lear 25B (N366AA), Briggsdale, CO, Destroyed, 1 fatal. Unusual attitude practice. Full nose down trim. Misc-unable to retrim acft for undetermined reason ## Service difficulty reports (100, newest 50) As reported by operators and repair stations, by the model named in the report. - [SDR KC8A20140130001](https://openairdocs.org/sdr/KC8A20140130001), Jan 30, 2014: SWITCH. UNKNOWN. RUDDER TRIM INOPERATIVE. COULD NOT DUPLICATE. TROUBLESHOT RUDDER TRIM SYSTEM, SUSPECT RUDDER TRIM SWITCH AND REPLACED SELECTOR SWITCH WITH NEW. - [SDR G41A20130402001](https://openairdocs.org/sdr/G41A20130402001), Mar 31, 2013: TIRE. SEPARATED. AFTER LANDING IN MMPR, WHILE PERFORMING THE WALK AROUND INSPECTION, THE CAPTAIN NOTICED A SECTION OF THE TREAD MISSING ON THE NR 1 MAIN TIRE. NO OTHER DAMAGE WA - [SDR KC8A20121121001](https://openairdocs.org/sdr/KC8A20121121001), Nov 21, 2012: CIRCUIT BREAKER. MALFUNCTIONED. AFTER AIRCRAFT DEPARTED KYIP, NOTICED THE RT ESSENTIAL BUSS CIRCUIT BREAKER POPPED. THEN THE LT ESSENTIAL BUSS CIRCUIT BREAKER ALONG WITH THE ESSENTIAL BUSS TIE - [SDR KC8A20121116001](https://openairdocs.org/sdr/KC8A20121116001), Nov 16, 2012: ENGINE. FLAMED OUT. DURING CLIMBOUT FROM KOSC EN ROUTE TO KJFK THROUGH FLIGHT LEVEL 390, THE RIGHT ENGINE FLAMED OUT. ATC WAS CONTACTED, A LOWER ALTITUDE AND RETURNED TO KYIP WAS R - [SDR G41A201207300005](https://openairdocs.org/sdr/G41A201207300005), Jul 30, 2012: BONDING JUMPER. FRAYED. DEPARTING ELP ON AN EMPTY LEG TO IAH, 5 MIN AFTER TAKEOFF, THE CAPTAIN REPORTED THAT AFTER FLYING THROUGH A RAIN CLOUD TRANSMITTING ON THE NR 1 AND NR 2 COMM RA - [SDR KC8AN150CK](https://openairdocs.org/sdr/KC8AN150CK), Jul 22, 2011: CIRCUIT BREAKER. UNSERVICEABLE. LEFT AND RIGHT ESSENTIAL BUSS CIRCUIT BREAKERS POPPED DURING NORMAL CRUISE. CREW ELECTED TO DIVERT INTO KMOR FOR REPAIRS. - [SDR ZP7A20110311001](https://openairdocs.org/sdr/ZP7A20110311001), Mar 8, 2011: ENGINE. FLAMED OUT. MX PERFORMED AN ADJUSTMENT ON THE FUEL DENSITY AND IDLE RPM ON THE LT ENGINE, WHICH REQUIRES A MAX ALTITUDE ACCELERATION CHECK IAW THE MM CHAP 72-00. FLIGHT CRE - [SDR 2011F00033](https://openairdocs.org/sdr/2011F00033), Feb 10, 2011: FILTER. CONTAMINATED. CABIN WAS PRESSURIZING BUT PILOT REPORTED ERRATIC CABIN RATE OF CLIMB AND ELECTED TO RETURN TO BASE. MX CHECKED TAILCONE FOR PRESSURE LEAKS NONE FOUND. MX CHECK - [SDR ZP72010F00000](https://openairdocs.org/sdr/ZP72010F00000), Mar 31, 2010: MOTOR. SHORTED. CABIN BLOWER MOTOR SHORTED OUT, CAUSING ELECTRICAL SMOKE TO BE EMITTED INTO THE CABIN. SMOKE STOPPED WHEN THE CIRCUIT BREAKER POPPED. - [SDR G41A2007003](https://openairdocs.org/sdr/G41A2007003), Oct 9, 2007: ENGINE. FLAMED OUT. LEARJET N26AT WAS ON THE WAY FROM ELP TO LAX AT FL 410, THE CREW WAS EXPERIENCING SEVERE WEATHER AND REQUESTED TO GO TO FL 450. DURING THE CLIMB THEY HIT TURBUL - [SDR 4262006N236CA](https://openairdocs.org/sdr/4262006N236CA), Apr 26, 2006: COMPRESSOR WHEEL. FOD. AT 285 KNOTS AT FL270 THE LT ENGINE WENT DOWN TO 20 PERCENT N1. THE AIRCRAFT DIVERTED AND LANDED UNEVENTFUL. MAINTENANCE FOUND FOD ON THE 1ST STAGE OF THE COMPR - [SDR CED2006F00000](https://openairdocs.org/sdr/CED2006F00000), Nov 1, 2005: RUDDER PEDAL. STIFF. THE FLIGHT CREW ABORTED TAKEOFF ROLL. THE FLIGHT CREW NOTICED ON TAKEOFF ROLL THAT THE RUDDER PEDALS FELT STIFF AND HAD VERY LITTLE MOVEMENT. MAINTENANCE INSPEC - [SDR CED2006F00021](https://openairdocs.org/sdr/CED2006F00021), Oct 4, 2005: ENGINE. SHUTDOWN. THE NR 2 ENGINE SHUTDOWN. THE FLIGHT CREW FOLLOWED THE EMERGENCY CHECKLIST AND DIVERTED WITHOUT INCEDENT. MAINTENANCE HAS NOT YET INSPECTED THE AIRCRAFT TO DETE - [SDR CED2006F00005](https://openairdocs.org/sdr/CED2006F00005), Sep 1, 2005: ALTIMETER. FAILED. ON DEPARTURE, THE CAPTAIN`S ALTIMETER FAILED. REMOVED AND REPLACED ALTIMETER. SYSTEM OPS CHECK GOOD. (K) - [SDR 6252004N8005Y](https://openairdocs.org/sdr/6252004N8005Y), Jun 25, 2005: CABIN PRESSURE. MALFUNCTIONED. WHILE ENROUTE, AT FLIGHT LEVEL 410 THE CABIN ALTITUDE EXCEEDED 10000 FT, THE FLIGHT CREW FOLLOWED THE CHECKLIST PROCEDURES AND DIVERTED AND LANDED WITHOUT FURTH - [SDR 2006FA0000120](https://openairdocs.org/sdr/2006FA0000120), Jun 17, 2005: STATIC LINE. LOOSE. WHILE ENROUTE, CABIN ALTITUDE EXCEEDED 10,000 FT. THE FLIGHT CREW FOLLOWED EMERGENCY PROCEDURES BUT WAS UNABLE TO RETURN THE CABIN PRESSURIZATION WITHIN NORMAL - [SDR CED2006F00007](https://openairdocs.org/sdr/CED2006F00007), Jun 14, 2005: TIRE. DESTROYED. ON TAKEOFF ROLL THE AIRCRAFT BLEW THE LT MAIN GEAR TIRES IN ELP. (K) - [SDR CED2006F00019](https://openairdocs.org/sdr/CED2006F00019), May 28, 2005: FIRE DETECTOR. FALSE ACTIVATION. WHILE ENROUTE, THE CREW EXPERIENCED INDICATION OF FIRE ON THE NR2 ENGINE. THE CREW THEN FOLLOWED THE EMERGENCY CHECK LIST AND COULD NOT EXTINGUISH THE FIRE LIGH - [SDR CED2006F00006](https://openairdocs.org/sdr/CED2006F00006), May 21, 2005: FUEL TANK. LEAKING. ON TAKEOFF ROLL AND INITIAL CLIMBOUT, FUEL WAS OBSERVED LEAKING FROM THE LT WING TIP. INFORMED THE CREW OF THE LEAK AND INSTRUCTED THEM TO COME AROUND AND LAND. - [SDR CED2006F00008](https://openairdocs.org/sdr/CED2006F00008), May 17, 2005: CASE. CRACKED. WHILE ENROUTE, AT FLIGHT LEVEL 390, FLIGHT CREW OBSERVED A FIRE INDICATION ON THE NR 2 ENGINE. THE FLIGHT CREW WAS ABLE TO EXTINGUISH THE FIRE INDICATION LIGHT - [SDR CED2006F00017](https://openairdocs.org/sdr/CED2006F00017), May 6, 2005: PLATE. MALFUNCTIONED. ON DESCENT, THE NR 1 ENGINE STALLED. THE FLIGHT CREW LT THE ENGINE RUNNING AT IDLE AND LANDED WITHOUT INCIDENT. (K) - [SDR 2005FA0000486](https://openairdocs.org/sdr/2005FA0000486), Feb 24, 2005: FLOORBEAM. CRACKED. RIGHT DIVAN FLOOR ATTACH ANGLE P/N 2411395-26-526 CRACKED IN RADIOUS OF BEND 14 INCHES LONG. DISCOVERED WHILE PERFORMING CABIN PRESURE LEAK TEST. - [SDR 110404](https://openairdocs.org/sdr/110404), Oct 23, 2004: BLEED AIR SYS. LEAKING. THE AIRCREW EXPERIENCED ELECTRICAL POWER FAILURE. IT WAS FOUND THAT A BLEED AIR LEAK WAS OVERHEATING THE GENERATOR CONTROL PANEL, CAUSING THE GENERATORS TO GO O - [SDR 1013041](https://openairdocs.org/sdr/1013041), Oct 13, 2004: CONTROL MODULE. MALFUNCTIONED. ON A FLIGHT, THE FLIGHT CREW NOTICED THAT THE PRESSURIZATION SYSTEM WAS NOT INCREASING CABIN PRESSURE AT A RATE TYPICAL TO NORMAL AIRCRAFT OPERATION. AT 17,000 - [SDR 2004F00421](https://openairdocs.org/sdr/2004F00421), Oct 4, 2004: ENGINE. SHUTDOWN. AT FL370, THE NR 2 ENGINE SHUTDOWN. THE FLIGHT CREW FOLLOWED THE EMERGENCY CHECKLIST AND DIVERTED TO LIT WITHOUT INCIDENT. MAINTENANCE HAS NOT YET INSPECTED THE - [SDR 091304](https://openairdocs.org/sdr/091304), Sep 10, 2004: WHEEL. OUT OF POSITION. THE CREW DID NOT NOTICE THAT THE NOSE WHEEL WAS TURNED 180 DEGREES, THEREFORE WHEN THE CREW RETRACTED THE LANDING GEAR THE NOSE GEAR COULD NOT LOCK IN THE UP PO - [SDR 091304A](https://openairdocs.org/sdr/091304A), Sep 10, 2004: WHEEL. OUT OF POSITION. THE CREW DID NOT NOTICE THAT THE NOSE WHEEL WAS TURNED 180 DEGREES, THEREFORE WHEN THE CREW RETRACTED THE LANDING GEAR THE NOSE GEAR COULD NOT LOCK IN THE UP PO - [SDR 2004F00338](https://openairdocs.org/sdr/2004F00338), Sep 1, 2004: CONTROL CABLE. BROKEN. THROTTLE CABLE BROKEN 12 INCHES FROM END OF CABLE. BROKEN AT AFT END OF FORWARD CABLE WHERE FORWARD CABLE ATTACHES TO AFT CABLE. (SO13200405891) - [SDR 2004F00189](https://openairdocs.org/sdr/2004F00189), Jun 17, 2004: LINE. LOOSE. WHILE EN ROUTE FROM MFE-LIT, CABIN ALTITUDE EXCEEDED 10,000 FT. THE FLIGHT CREW FOLLOWED EMERGENCY PROCEDURES BUT WAS UNABLE TO RETURN THE CABIN PRESSURIZATION - [SDR 2004F00192](https://openairdocs.org/sdr/2004F00192), Jun 14, 2004: TIRE. FAILED. ON TAKEOFF ROLL, THE AIRCRAFT BLEW THE LEFT MAIN GEAR TIRES IN ELP. (M) - [SDR CED2004F00004](https://openairdocs.org/sdr/CED2004F00004), May 28, 2004: FIRE WARNING. FALSE ACTIVATION. WHILE ENROUTE, THE CREW EXPERIENCED INDICATION OF FIRE ON THE NR 2 ENGINE. THE CREW THEN FOLLOWED THE EMERGENCY CHECK LIST AND COULD NOT EXTINGUISH THE FIRE LIG - [SDR CED2004F00003](https://openairdocs.org/sdr/CED2004F00003), May 21, 2004: FUEL SYS. LEAKING. ON TAKEOFF ROLL AND INITIAL CLIMB OUT, FUEL WAS OBSERVED LEAKING FROM THE LEFT WING TIP. ATC INFORMED THE CREW OF THE LEAK AND INSTRUCTED THEM TO COME AROUND AN - [SDR CED2004F00001](https://openairdocs.org/sdr/CED2004F00001), May 17, 2004: CASE. CRACKED. WHILE ENROUTE, AT FLIGHT LEVEL 390 FLIGHT CREW OBSERVED A FIRE INDICATION ON THE NR 2 ENGINE. THE FLIGHT CREW WAS ABLE TO EXTINGUISH THE FIRE INDICATION LIGHT U - [SDR 2004F00424](https://openairdocs.org/sdr/2004F00424), May 6, 2004: ENGINE. STALLED. ON DESCENT INTO MEMPHIS, TN, THE NR 1 ENGINE STALLED. THE FLIGHT CREW LEFT THE ENGINE RUNNING AT IDLE AND LANDED WITHOUT INCIDENT. (M) - [SDR 2004F00212](https://openairdocs.org/sdr/2004F00212), Jan 16, 2004: FLOW VALVE. INOPERATIVE. DEPARTED DTW, EN ROUTE TO ADS, AFTER ABOUT 5 MINUTES AT FLIGHT LEVEL 390 THE ALTITUDE ALERTER CAME ON. THE FLIGHT CREW FOLLOWED EMERGENCY PROCEDURES AND LANDED - [SDR DRU2004F00000](https://openairdocs.org/sdr/DRU2004F00000), Jan 13, 2004: FIRE DETECTOR. FALSE INDICATION. FALSE FIRE WARNING DURING FLIGHT. AFTER THE AIRCRAFT LANDED, THE PILOT REPORTED THAT THE INDICATION WAS INTERMITTENT. THE RT ENGINE COWLING WAS REMOVED, AND THE - [SDR 2004F00045](https://openairdocs.org/sdr/2004F00045), Jan 13, 2004: FIRE LOOP. DIRTY. FALSE FIRE WARNING DURING FLIGHT. AFTER A/C LANDED, PILOT REPORTED INDICATION WAS INTERMITTENT. COWL WAS REMOVED, ENGINE INSPECTED, NO INDICATION OF FIRE/OVERHE - [SDR 2004F00223](https://openairdocs.org/sdr/2004F00223), Jan 8, 2004: NOZZLE. DAMAGED. BRO - ON CLIMB-OUT, THE NR 1 ENGINE FLAMED OUT AT 39,600 FEET. THE AIRCRAFT DESCENDED TO FLIGHT LEVEL 25,000 FEET AND RESTARTED THE ENGINE. THE AIRCRAFT THEN DI - [SDR CED2004F00000](https://openairdocs.org/sdr/CED2004F00000), Jan 8, 2004: TIRE. SEPARATED. ON CLIMB OUT, THE NOSE GEAR UNSAFE LIGHT ILLUMINATED. THE CREW CYCLED THE GEAR NUMEROUS TIMES WITH NO CHANGE IN THE UNSAFE INDICATION, THEY THEN RETURNED WITHOU - [SDR 2004FA0000020](https://openairdocs.org/sdr/2004FA0000020), Jan 6, 2004: PUMP. LEAKING. INSTALLED OVERHAULED FUEL PUMP FROM MFG ON 4NOV03. DURING AIRCRAFT INSPECTION 22DEC04 HAD FUEL SEEP FROM WIRES ON PUMP. - [SDR CED2003F00000](https://openairdocs.org/sdr/CED2003F00000), Nov 15, 2003: FILTER. INOPERATIVE. ON NOV 20, 2003, THE AIRCRAFT EXPERIENCED LOW FUEL PRESSURE WARNING LIGHTS. UPON INVESTIGATION OF THE DISCREPANCY WE CHANGED THE FUEL FILTERS BECAUSE THE FELT S - [SDR 2004F00326](https://openairdocs.org/sdr/2004F00326), Sep 24, 2003: ENGINE. FLAMED OUT. ON A TEST FLIGHT AFTER ENGINE INSTALL. ENGINE BEING TESTED FLAMED OUT AT 42,500 FT. AT A LOWER ALTITUDE OF 23,000 FT ENGINE RESTARTED AND RAN WITH NO FURTHER TR - [SDR 2003F00580](https://openairdocs.org/sdr/2003F00580), Aug 24, 2003: PANEL. DEPARTED. AIRCRAFT LOST NOSE PANEL ON TAKEOFF DURNG A PART 91 FLIGHT AIRCRAFT RETURNED TO BASE. UPON RECOVERY INSPECTION, FOUND THAT NOSE PANEL WAS LEFT UNFASTENED BY MAI - [SDR CYO2003F00000](https://openairdocs.org/sdr/CYO2003F00000), Jul 16, 2003: INDICATOR. SHORTED. AIRCRAFT WAS ENROUTE FROM BRO TO LIT. FLIGHT CREW EXPERIENCED SLIGHT SMOKE AND A BURNING ODOR, THEY THEN DIVERTED TO SHV. MAINTENANCE CREW INSPECTED AND FOUND D - [SDR 070103](https://openairdocs.org/sdr/070103), Jul 1, 2003: BLEED VALVE. OUT OF ADJUST. WHILE CLIMBING THROUGH FL40.5, NR 1 ENGINE FLAMEOUT. AIRCRAFT DESENDED TO FL290, THE ENGINE WAS RELIGHT AND AIRCRAFT CONTINUED TO SRQ AT FL240. MAINTENANCE DETE - [SDR 2003FA0000480](https://openairdocs.org/sdr/2003FA0000480), May 12, 2003: FIRE LOOP. LOOSE. FIRE DETECTION LIGHT CAME ON IN FLIGHT. REDUCED ENGINE POWER TO IDLE, AFTER 1 MINUTE SHUT DOWN ENGINE AND EXTIGUISHED BOTH BOTTLES. ONCE ON THE GROUND ENGINE WA - [SDR DRU2003F00000](https://openairdocs.org/sdr/DRU2003F00000), Feb 10, 2003: BLANKET. BURNED. DURING INSP BY MECH, A BLACK STREAK (FORE TO AFT) WAS NOTICED ON LT HORIZ STAB, THAT BOOT LOOKED BURNT ON L.E. EXAMINATION REVEALED THAT BOOT MUST HAVE SHORTED - [SDR CA030110006](https://openairdocs.org/sdr/CA030110006), Dec 12, 2002: STARTER GEN. FAILED. (CAN) DEPARTED AIRPORT AND LEVELED OFF AT FL410. VERY LIGHT TURBULENCE WAS ENCOUNTERED. APPROXIMATELY TWO MINUTES INTO CRUISE, THE RT ENGINE PRODUCED A LIGHT BA - [SDR 110702](https://openairdocs.org/sdr/110702), Nov 6, 2002: ENGINE. FLAMED OUT. ENGINE FLAMED OUT AT FL 390, 20 MIN. INTO THE FLIGHT. PILOT DECLARED AN EMERGANCY. THE PILOT RELITE THE ENGINE. THE AIRCRAFT RETURNED TO THE GROUND AT FXE. THE - [SDR 102302](https://openairdocs.org/sdr/102302), Oct 22, 2002: REGULATOR VALVE. MALFUNCTIONED. AT FLIGHT LEVEL 430 HYRDRALIC PRESSURE INDICATED 0, AIRCRAFT WAS DIVERTED TO LIT. DURING DESENT THE LT ENGINE OIL LIGHT CAME ILLUMINATED. THIS ENGINE WAS SHUT D All 100: https://openairdocs.org/model/gates-lear-jet-25b/reports.md ## STCs that may be installed (OpenAirDocs) (101, first 50) Approved for this model: the STC's model list names it on its data sheet, or a series that includes it. In force first, then newest. The registry doesn't record which STCs an aircraft has. - [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 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 ST12087CH](https://openairdocs.org/stc/ST12087CH): Installation replacement Cabin/Cockpit Handheld Fire Extinguishers. Avcon Industries Inc - [STC ST02097SE](https://openairdocs.org/stc/ST02097SE): Installation of replacement circuit boards for the FC-110 autopilot. Symetric Industries, DBA Extant Aerospace - [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 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 ST01936WI](https://openairdocs.org/stc/ST01936WI): Installation of LED lights. AeroLED's Holdings LLC - [STC ST01138DE](https://openairdocs.org/stc/ST01138DE): Installation of MidContinent MD23 standby altimeter and/or attitude indicators. Butler National Corporation - [STC ST04728NY](https://openairdocs.org/stc/ST04728NY): Installation of LAI CoolView Cabin Window. Lee Aerospace 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 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 ST04575AT](https://openairdocs.org/stc/ST04575AT): Installation of the Rockwell Collins ALT-1000+/ -4000+ with 5G Filtering. Chippewa Aerospace Inc - [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 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 ST04177AT](https://openairdocs.org/stc/ST04177AT): Installation of a Talon Aerospace LED Replacement General Purpose Lamps. Aaxico Technical Services 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 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 SA1670SW](https://openairdocs.org/stc/SA1670SW): Installation of engine thrust reversers. The NORDAM Group LLC - [STC ST10472SC](https://openairdocs.org/stc/ST10472SC): Replacement Thrust Reverser Accumulator for the TR3000 Thrust Reverser System. The NORDAM Group LLC - [STC SA4999NM](https://openairdocs.org/stc/SA4999NM): Installation of lifeport patient loading and support system. LifePort LLC - [STC SA01213CH](https://openairdocs.org/stc/SA01213CH): Install air ambulance conversion in accordance with Spectrum Aeromed Inc. Drawings as listed on AML SA01213CH, or later FAA approved revision. Spectrum Aeromed LLC dba Spectrum Aeromed - [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 ST00347BO](https://openairdocs.org/stc/ST00347BO): Modification to upgrade a BendixKing CAS 67A TCAS II system to CAS 67B TCAS II Change 7.1. Pro Star Aviation, LLC - [STC ST00373BO](https://openairdocs.org/stc/ST00373BO): Installation of Rockwell Collins TDR-94D Transponders with ADS-B Out. Pro Star Aviation, LLC - [STC ST00226BO](https://openairdocs.org/stc/ST00226BO): Installation of Honeywell CAS-67A Airborne Collision Avoidance System (ACAS II) with dual MST-67A Mode S Transponders and copilot's Intercontinental Dynamics Corporation encoding altimeter with Static Defect Correction Module. Pro Star Aviation, LLC - [STC ST11071SC](https://openairdocs.org/stc/ST11071SC): Demonstration of aircraft critical equipment and antenna systems tolerance of radio frequency interference (RFI) from intentional or spurious transmissions from certain Portable Electronic Devices (PEDs). Liberty Partners Inc - [STC ST02632LA](https://openairdocs.org/stc/ST02632LA): Modification to replace the existing Mode S Transponder system with ACSS NXT-700 Mode S Transponder with ADS-B Out and optionally install ACSS NXG-900 GPS as a position source for ADS-B Out. Aviation Communications and Surveillance Systems - [STC ST02609LA](https://openairdocs.org/stc/ST02609LA): Modification to replace the existing Mode S Transponder system with ACSS NXT-700 Mode S Transponder with ADS-B Out. Aviation Communication and Surveillance Systems (ACSS) LLC - [STC ST03776NY](https://openairdocs.org/stc/ST03776NY): Modification to upgrade existing Rockwell Collins TCAS (Model: TTR-920, TTR-921, and TTR-4000) at VERSION 7.0 to Rockwell Collins TCAS (Model: TTR-921, TTR-4000, and TTR-4100) at VERSION 7.1 (ACAS II). Scandinavian Avionics Design ApS - [STC ST02500SE](https://openairdocs.org/stc/ST02500SE): The installation of the Garmin GDL-88 with the Flight Stream 210 to allow ADS-B(In) Flight Information Service Broadcast (FIS-B), independent of the ADS-B(Out) solution compliance. Butler National Corporation - [STC SA1170GL](https://openairdocs.org/stc/SA1170GL): Except Model 55: Install Egan Aviation air ambulance stretcher P/N 125 using installation kit P/N 803, inverter/pump kit No. 808, 809, or 810. For Model 55, install air ambulance stretcher P/N 125 using installation kit P/N 804, medical oxygen system kit P/N 807, inverter/pump kit No. 808, 809, or810. Paul/ Lanna Egan LLC - [STC ST02583LA](https://openairdocs.org/stc/ST02583LA): Modification of the Engine Exhaust system that installs the Alloy Aerospace, Inc. hush kit on Learjet 20 series aircraft. Alloy Aerospace Inc - [STC ST02121CH](https://openairdocs.org/stc/ST02121CH): Certification for Reduced Vertical Separation Minimum (RVSM) operational capability and installation of dual Honeywell AM-250 Altimeters and Rosemount model 0856NA Pitot-Static Probes. Flight Test Aerospace, Inc - [STC ST01733WI](https://openairdocs.org/stc/ST01733WI): Installation of the Quiet Lear Hushkit or Avcon Noise Suppressor. Butler National Corporation - [STC ST04238AT](https://openairdocs.org/stc/ST04238AT): Upgrade of Honeywell Traffic Collision Avoidance Systems II (TCAS II) Processor Software from TCAS II Version 7.0 to TCAS II Version 7.1. Aviation Partners Group Inc - [STC ST01783WI](https://openairdocs.org/stc/ST01783WI): Installation of Internal Wing Hardpoints. Avcon Industries Inc - [STC ST02316LA](https://openairdocs.org/stc/ST02316LA): Installation of a Crane Aerospace & Electronics Tire Sensor Assembly. ELDEC Corporation - [STC ST01734WI](https://openairdocs.org/stc/ST01734WI): Installation of an Emergency Pneumatic Reservoir Assembly, EAS P/N 1260001-02. EAS Corporation All 101: https://openairdocs.org/model/gates-lear-jet-25b/stcs.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.