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Learjet 25

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Aircraft model · Fixed wing multi engine · Airplane · registry code 5170506

Manufacturer (registry)
LEARJET INC
Model
25
Registry code
5170506
Registered
2 aircraft
Type
Fixed wing multi engine
Engines
2 · Turbo-jet
Seats
10
Weight class
12,500 to 19,999 lb
Cruise speed
388 mph
Certification
Type certificated
Data sheet
TCDSA10CE
Holder
Learjet Inc.

Model codes come from the FAA registry’s reference file. ADs are matched to them by model name and maker.

On this page

Aircraft by year built · 46

1967Registered nowDeregistered2026

Airworthiness directives that may apply · 28

ADs whose products match this airframe model. Each AD’s applicability may narrow it by serial number, part number or configuration.

1969In forceSuperseded2026
See all 29 ADs
Query with SQL
duckdb -csv -c "SELECT d.ad_number, d.status, d.subject, d.effective_date
  FROM 'https://openairdocs.org/data/latest/faa_directive.parquet' d
  WHERE d.ad_id IN (SELECT ad_id FROM 'https://openairdocs.org/data/latest/faa_aircraft_model_directive.parquet' WHERE aircraft_model_code IN ('5170506'))
  ORDER BY coalesce(d.effective_date, d.publication_date, d.issue_date) DESC, d.ad_number DESC"

Prints the whole list as CSV. It reads the release’s Parquet files over HTTPS, so there’s nothing to download first. Install DuckDB to run it.

Information bulletins that may apply · 3

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duckdb -csv -c "SELECT s.saib_number, any_value(s.title) AS title, max(s.issue_date) AS issue_date, any_value(s.status) AS status
  FROM 'https://openairdocs.org/data/latest/faa_saib.parquet' s
  WHERE s.saib_id IN (SELECT saib_id FROM 'https://openairdocs.org/data/latest/faa_aircraft_model_saib.parquet' WHERE aircraft_model_code IN ('5170506'))
  GROUP BY s.saib_number ORDER BY issue_date DESC"

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Registered aircraft · 2

N473TCTulsa Technology Center School District #18 · Tulsa, OKBuilt 1969 · S/N 043N929JGPittsburgh Institute Of Aeronautics · West Mifflin, PAS/N 035
Query with SQL
duckdb -csv -c "SELECT n_number, serial_number, year_manufactured, status, registrant_name, registrant_city, registrant_state
  FROM 'https://openairdocs.org/data/latest/faa_aircraft_registration.parquet'
  WHERE aircraft_model_code IN ('5170506')
  ORDER BY n_number"

Prints the whole list as CSV. It reads the release’s Parquet files over HTTPS, so there’s nothing to download first. Install DuckDB to run it.

STCs approved for this model · 110

STC SA00179WIInstallation of pressure dome provision for an infrared scanner in the camera door.Avcon Industries IncSTC SA01213CHInstall 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 AeromedSTC SA01452CHInstallation of an air ambulance conversion kit.Med-Pac Inc.
See all 110 STCs
Query with SQL
duckdb -csv -c "SELECT s.stc_number, s.description, s.holder, s.status, s.status_date
  FROM 'https://openairdocs.org/data/latest/faa_stc.parquet' s
  WHERE s.stc_number IN (SELECT stc_number FROM 'https://openairdocs.org/data/latest/faa_stc_model.parquet' WHERE model_key = '25')
  ORDER BY s.status = 'Current' DESC, s.stc_number"

Prints the whole list as CSV. It reads the release’s Parquet files over HTTPS, so there’s nothing to download first. Install DuckDB to run it.

NTSB investigations · 8

Aircraft matched to this model through the registry, by N-number and event date.

Defining event, 2008 on

Of 1 case NTSB coded with a defining event. All defining events

First occurrence, 1982 to 2007

Of 5 cases with NTSB’s older coding, defined in its coding manual.

NTSB DCA13RA025Accident · 7 fatalForeign investigationLearjet 25 · Monterrey, MexicoDec 9, 2012 · N345MC · DestroyedNTSB NYC07LA170Accident · No injuriesLimited investigationFinal reportLearjet 25 · St. Augustine, FLA loss of power on both engines for an undetermined reason.Jul 21, 2007 · N70SK · Substantial damageNTSB DFW05CA174Accident · No injuriesData collectionFinal reportLearjet 25 · Amarillo, TXThe pilot's failure to maintain directional control during the landing roll. A contributing factor was the prevailing crosswind.Jul 1, 2005 · N345MC · Substantial damageNTSB NYC01FA214Accident · 2 fatalField investigationFinal reportLearjet 25 · Ithaca, NYThe pilot's failure to maintain a proper climb rate while taking off at night, which was a result of spatial disorientation. Factors in the accident were the low visibility and cloud conditions, and the dark night.Aug 24, 2001 · N153TW · DestroyedNTSB BFO89FA024Accident · No injuriesField investigationFinal reportLearjet 25 · Roanoke, VACo-pilots poorly planned approach which resulted in an overrun landing. A contributing factor was the captains poor supervision of the approach and landing.Mar 24, 1989 · N29FN · Substantial damageNTSB DCA83AA023Accident · 2 fatalFinal reportGates Learjet 25 · Newark, NJThe acft was on a ngt check courier flt. During arrival, the indicated airspeed was well above the legal limit of 250 ktfor flt below 10,000 ft. rwy 4R was selected for landing after the crew were advised that their original choice (rwy 11)was noise…Mar 30, 1983 · N51CA · DestroyedNTSB MKC74AK012Accident · 3 fatalClosedGates Lear 25 · Lincoln, NESep 25, 1973 · N40LB · DestroyedNTSB FTW72AF044Accident · 9 fatalClosedGates Lear 25 · Victoria, TXJan 18, 1972 · N658TC · Destroyed
Query with SQL
duckdb -csv -c "SELECT c.\"ntsbNumber\", c.\"eventDate\", c.\"eventType\", c.\"eventCity\", c.\"eventStateOrRegion\", a.n_number, a.\"aircraftMake\", a.\"aircraftModel\", c.\"highestInjuryLevel\", c.\"totalFatal\", c.\"completionStatus\", c.report_url
  FROM 'https://openairdocs.org/data/latest/ntsb_aircrafts.parquet' a JOIN 'https://openairdocs.org/data/latest/ntsb_case_detail.parquet' c ON c.\"mKey\" = a.case_mkey
  WHERE a.aircraft_model_code IN ('5170506')
  ORDER BY c.\"eventDate\" DESC, c.\"ntsbNumber\" DESC"

Prints the whole list as CSV. It reads the release’s Parquet files over HTTPS, so there’s nothing to download first. Install DuckDB to run it.

FAA incident reports · 17

Matched to this model through the registry, by N-number and event date.

Incident 20080910849639ILear 25 · Washington, DC(-23) Inspector's statement:[privacy data omitted]. I interviewed the capt. [privacy data omitted] He stated that when he disconnected the yaw damper on short final in ground effect, he experienced a severe yaw to the right which resulted in the right wing…Sep 10, 2008 · N727LJ · Minor damageAccident 20070721018079ALear 25 · St Augustine, FL(-23) On July 21, 2007, at approximately 1415 EDT, a Learjet 25, N70SK, serial #049, was substantially damaged during a hard landing at st. Augustine airport, st. Augustine, Florida. Crew reported both engines flamed out at 5000 AGL. The aircraft had departed…Jul 21, 2007 · N70SK · Substantial damageAccident 20050701013749ALear 25 · Amarillo, TX(-23) On July 1, 2005, at approximately 12:30 CDT, N345MC, a Learjet model 25, serial number 46, requested and was cleared to land on runway 04 at rick husband Amarillo International Airport, (kama). The aircraft touched down 1800 feet from the runway…Jul 1, 2005 · N345MC · Substantial damage
See all 17 incident reports
Query with SQL
duckdb -csv -c "SELECT report_number, event_date, event_type, city, state, aircraft_make, aircraft_model, aircraft_damage, fatal_injuries, n_number
  FROM 'https://openairdocs.org/data/latest/faa_incident_report.parquet'
  WHERE aircraft_model_code IN ('5170506')
  ORDER BY event_date DESC, report_number DESC"

Prints the whole list as CSV. It reads the release’s Parquet files over HTTPS, so there’s nothing to download first. Install DuckDB to run it.

Service difficulty reports · 71

SDR HAEA201000213Indicator · failedCREW OBSERVED THE DME DISPLAY TO GO EXTREMELY BRIGHT FOLLOWED BY THE CIRCUIT BREAKER POPPING. CREW BRIEFLY NOTICED AN ELECTRICAL SMELL/SMOKE IN COCKPIT THAT WENT AWAY SHORTLY AFTER CIRCUIT BREAK POPPED. NO SPECIAL HANDLING WAS REQUESTED BY THE CREW. ACFT PROFeb 1, 2010 · N265TW · Lear 25 · DME/TACAN SystemSDR KC8AN76CKEngine · flamed outLT ENGINE FLAMED OUT AT 40,000FT, DURING CRUISE IN TURBULENT AIR. PILOT DESCENDED TO A LOWER ALTITUDE AND PERFORMED A SUCCESSFUL RELIGHT OF THE ENGINE. NO ABNORMAL ENGINE PERFORMANCE ISSUES NOTED. ACFT CONTINUED TO THE INTENDED DESTINATION. THE ACFT LANDED, WJun 19, 2009 · N76CK · Lear 25 · Engine (Turbine/Turboprop)SDR HAEA200800205APump · failedENGINE RPM ROLLED BACK FL430 PLUS 30 MINUTES. AIRCRAFT DESCENDED TO FL 150 AND DIVERTED TO GSP. MAINTENANCE DISCOVERED ENGINE DRIVEN FUEL PUMP FAILED. REPLACED FUEL CONTROL/FUEL PUMP ASSY. NO FURTHER DEFECTS.Nov 10, 2008 · N525TW · Lear 25 · Fuel Controlling System
See all 71 difficulty reports
Query with SQL
duckdb -csv -c "SELECT sdr_id, difficulty_date, n_number, aircraft_make, aircraft_model, part_name, part_condition, jasc_code, discrepancy
  FROM 'https://openairdocs.org/data/latest/faa_service_difficulty_report.parquet'
  WHERE aircraft_model_key = '25'
  ORDER BY difficulty_date DESC"

Prints the whole list as CSV. It reads the release’s Parquet files over HTTPS, so there’s nothing to download first. Install DuckDB to run it.

The same model under other registry codes

Amateur-built copies and renamed makers get their own codes.

Gates Lear Jet 251 registered aircraftRegistry code 5170509Air & Space America 250 registered aircraftRegistry code 0440105White L J 250 registered aircraftRegistry code 05634XUSkyways Air Transportation 2.50 registered aircraftRegistry code 0610197
Query with SQL
duckdb -csv -c "SELECT m.code, m.manufacturer, m.model, count(g.n_number) AS aircraft
  FROM 'https://openairdocs.org/data/latest/faa_aircraft_model.parquet' m LEFT JOIN 'https://openairdocs.org/data/latest/faa_aircraft_registration.parquet' g ON g.aircraft_model_code = m.code
  WHERE m.match_key = '25' AND m.code NOT IN ('5170506')
  GROUP BY ALL
  ORDER BY aircraft DESC
  LIMIT 12"

Prints the whole list as CSV. It reads the release’s Parquet files over HTTPS, so there’s nothing to download first. Install DuckDB to run it.