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Learjet 55

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Aircraft model · Fixed wing multi engine · Airplane · registry code 5170804

Manufacturer (registry)
LEARJET INC
Model
55
Registry code
5170804
Registered
4 aircraft
Type
Fixed wing multi engine
Engines
2 · Turbo-fan
Seats
13
Weight class
12,500 to 19,999 lb
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 · 5

1981Registered nowDeregistered2026

Airworthiness directives that may apply · 20

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

1984In forceSuperseded2026
See all 21 ADs
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  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 ('5170804'))
  ORDER BY coalesce(d.effective_date, d.publication_date, d.issue_date) DESC, d.ad_number DESC"

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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 ('5170804'))
  GROUP BY s.saib_number ORDER BY issue_date DESC"

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Registered aircraft · 4

N54NWAti Jet Sales West LLC · El Paso, TXBuilt 1982 · S/N 054N550TCContinental Jet LLC · Vero Beach, FLS/N 034N558RABas Part Sales LLC · Greeley, COBuilt 1983 · S/N 086N976DGCf Aviation Trust LLC Trustee · Wilmington, DEBuilt 1981 · S/N 013
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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 ('5170804')
  ORDER BY n_number"

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STCs approved for this model · 105

STC SA00276SEInstallation of emergency medical stretcher, oxygen, and electrical systems.LifePort, LLCSTC 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 105 STCs
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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 = '55')
  ORDER BY s.status = 'Current' DESC, s.stc_number"

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NTSB investigations · 2

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

In the probable cause, 2008 on

Findings NTSB made part of the probable cause. A case can have several. All findings

First occurrence, 1982 to 2007

Of 1 case with NTSB’s older coding, defined in its coding manual.

NTSB WPR24LA071Accident · Minor injuriesClass 4 · LimitedFinal reportLearjet 55 · Livingston, MTThe flight crew’s decision to land on a snow-covered runway with a tailwind, resulting in a runway excursion and subsequent impact with terrain. Contributing to the accident, was the failure of the airport authority to plow the runway.Jan 11, 2024 · N558RA · Substantial damageNTSB MIA00FA190Accident · 4 fatalField investigationFinal reportLearjet 55 · Boca Raton, FLThe failure of the pilot's of both airplanes to maintain a visual lookout (while climbing and maneuvering) resulting in an in-flight collision and subsequent collision with residences and terrain.Jun 23, 2000 · N220JC · 2 aircraft · 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 ('5170804')
  ORDER BY c.\"eventDate\" DESC, c.\"ntsbNumber\" DESC"

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FAA incident reports · 6

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

Accident 20240111000139ALearjet 55 · Livingston, MTOn January 11, 2024 a Learjet Inc model 55, [privacy data omitted], [privacy data omitted], landed at Mission Field (lvm), Livingston Montana airport during a repositioning flight and slid off rwy 22 in to a ravine. Pilot and copilot only two POB and…Jan 11, 2024 · N558RA · Substantial damageIncident 20131212023379ILearjet 55 · Opalocka, FLAircraft N54NW, departed opf airport. During climb-out, the crew noticed the master caution light illuminated on then off. The left hand engine low oil press annunciator warning light flickered on, with decreasing oil pressure observed on indicator. The crew…Dec 12, 2013 · N54NW · No damageIncident 20090911015179ILear 55LEAR · Aspen, CO(-23) On Friday, September 11, 2009, aircraft N54NW, a Learjet model 55 aircaft operated by ati jet charter an 14CFR part 135 air taxi operator, was enroute via instrument flight rules (IFR) from medford, or (mfr) to Aspen, CO (ase) for passenger pick-up.…Sep 11, 2009 · N54NW · Minor damageIncident 20050116002069ILear 55LEAR · Ft Lauderdale, FL(-23) Departed runway 26 at ft. Lauderdale executive (fxe), entered IMC @ 600'. Passing thru 800", crew heard loud bang but saw nothing. Precautionary return for landing and found bird strike.Jan 16, 2005 · N667MB · Minor damageAccident 20000623040341ALear 55LEAR · Boca Raton, FL(.4)The Learjet departed from an uncontrolled airport about 2 minutes before the accident on a on a VFR climb and was not talking to ATC. The extra EA-300S departed VFR from a controlled airport and requested and received a frequency change from the control…Jun 23, 2000 · N220JC · Destroyed · 3 fatalIncident 19890127029629IStbros SD330 · Albany, NYAircraft being taxied for maintenance check. Had sudden loss of hydraulic pressure and steering. Hit hangar door.Jan 27, 1989 · N155DD · Minor damage
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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 ('5170804')
  ORDER BY event_date DESC, report_number DESC"

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Service difficulty reports

No reports name this modelGeneral aviation reporting is voluntary.

The same model under other registry codes

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

Gates Learjet 5554 registered aircraftRegistry code 5170702
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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 = '55' AND m.code NOT IN ('5170804')
  GROUP BY ALL
  ORDER BY aircraft DESC
  LIMIT 12"

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