# NTSB investigations: Learjet 23 A list on [Learjet 23](https://openairdocs.org/model/learjet-23.md). Matched to the registry by N-number and event date, newest first. - [NTSB LAX98LA105](https://openairdocs.org/ntsb/LAX98LA105.md): Learjet 23 · Oakdale, CA · Accident · No injuries · Limited investigation · Final report · Mar 4, 1998 · N37BL · Substantial damage > failure of the flight crew to extend the landing gear before landing. - [NTSB CHI95LA013](https://openairdocs.org/ntsb/CHI95LA013.md): Learjet 23 · Holland, MI · Accident · No injuries · Limited investigation · Final report · Oct 14, 1994 · N20TA · Substantial damage > The copilot's misjudgment of the touchdown point, and the pilot in command's inadequate supervision to avoid the accident. - [NTSB CHI91MA224](https://openairdocs.org/ntsb/CHI91MA224.md): Learjet 23 · Detroit, MI · Accident · 3 fatal · Major investigation · Final report · Jul 23, 1991 · N959SC · Destroyed > Improper preflight by the pilot, his failure to abort the takeoff while there was sufficient runway remaining, and his failure to assure that the aircraft attained sufficient airspeed for lift-off and climb. Factors related to the accident were: the pilot's… - [NTSB ATL91LA122](https://openairdocs.org/ntsb/ATL91LA122.md): Learjet 23 · Columbia, TN · Accident · No injuries · Limited investigation · Final report · Jul 2, 1991 · N500FM · Substantial damage > The pilot's premature decision to turn off the anti-skid during landing roll. Factors to this accident were hydroplaning conditions. - [NTSB ATL90MA051](https://openairdocs.org/ntsb/ATL90MA051.md): Learjet 23 · Ansonia, OH · Accident · 2 fatal · Major investigation · Final report · Jan 18, 1990 · N331DP · Destroyed > The flight crew became incapacitated for undetermined reasons and lost control of the airplane. - [NTSB LAX88FA274](https://openairdocs.org/ntsb/LAX88FA274.md): Learjet 23 · Perris, CA · Accident · 2 fatal · Field investigation · Final report · Jul 30, 1988 · N745F · Destroyed > The pilot decided to conduct his flight with known aircraft deficiencies. Induced company pressure to deliver the aircraft to its destination is considered to have been a factor in the accident. - [NTSB CHI85FA344](https://openairdocs.org/ntsb/CHI85FA344.md): Learjet 23 · Madison, WI · Accident · No injuries · Field investigation · Final report · Aug 13, 1985 · N61TS · Substantial damage > The plt elected to take off with a heavy loaded acft on the short rwy. The plt stated a loud noise was heard as the acft approached 80 KTS. The takeoff was aborted at 100 KTS. Hydroplaning was experienced and a loss of control occurred. The acft traveled off… - [NTSB DCA80AA017](https://openairdocs.org/ntsb/DCA80AA017.md): Lear Jet 23 · Richmond, VA · Accident · 2 fatal · Closed · May 6, 1980 · N866JS · Destroyed - [NTSB LAX78FA040](https://openairdocs.org/ntsb/LAX78FA040.md): Lear 23 · Burbank, CA · Accident · Minor injuries · Closed · Mar 30, 1978 · N133W · Destroyed - [NTSB CHI77FA022](https://openairdocs.org/ntsb/CHI77FA022.md): Lear Jet 23 · Flint, MI · Accident · 2 fatal · Closed · Jan 6, 1977 · N332PC · Destroyed - [NTSB LAX73FUM21](https://openairdocs.org/ntsb/LAX73FUM21.md): Lear Jet 23 · Carlsbad, CA · Accident · No injuries · Closed · Mar 8, 1973 · N332PC · Substantial damage - [NTSB CHI73AC058](https://openairdocs.org/ntsb/CHI73AC058.md): Lear 23 · Romulus, MI · Accident · 2 fatal · Closed · Dec 15, 1972 · N20M · Destroyed - [NTSB DCA70AZ008](https://openairdocs.org/ntsb/DCA70AZ008.md): Lear Jet 23A · Pellston, MI · Accident · 6 fatal · Closed · May 9, 1970 · N434EJ · Destroyed - [NTSB CHI70A0027](https://openairdocs.org/ntsb/CHI70A0027.md): Lear Jet 23A · Racine, WI · Accident · 7 fatal · Closed · Nov 6, 1969 · N1021B · Destroyed - [NTSB CHI68A0051](https://openairdocs.org/ntsb/CHI68A0051.md): Lear Jet 23 · Detroit, MI · Accident · Minor injuries · Closed · Dec 9, 1967 · N822LJ · Destroyed - [NTSB CHI68A0039](https://openairdocs.org/ntsb/CHI68A0039.md): Lear Jet 23 · Muskegon, MI · Accident · Minor injuries · Closed · Oct 25, 1967 · N432EJ · Destroyed - [NTSB DEN67A0066](https://openairdocs.org/ntsb/DEN67A0066.md): Lear 23 · Spanish Fork, UT · Accident · No injuries · Closed · Apr 23, 1967 · N434EJ · Substantial damage - [NTSB MIA67D0099](https://openairdocs.org/ntsb/MIA67D0099.md): Lear Jet 23 · Manteo, NC · Accident · No injuries · Closed · Jul 29, 1966 · N332PC · Substantial damage - [NTSB FTW66I0115](https://openairdocs.org/ntsb/FTW66I0115.md): Lear Jet · Enid, OK · Incident · No injuries · Closed · Jun 15, 1966 · N802L · 2 aircraft · Substantial damage - [NTSB FTW66I0115](https://openairdocs.org/ntsb/FTW66I0115.md): Lear Jet 23 · Enid, OK · Incident · No injuries · Closed · Jun 15, 1966 · N802L · 2 aircraft · Substantial damage - [NTSB FTW66A0095](https://openairdocs.org/ntsb/FTW66A0095.md): Lear Jet 23 · Clarendon, TX · Accident · 2 fatal · Closed · Apr 23, 1966 · N235R · Destroyed - [NTSB FTW66D0611](https://openairdocs.org/ntsb/FTW66D0611.md): Lear 23 · Marfa, TX · Accident · No injuries · Closed · Apr 4, 1966 · N332PC · Substantial damage - [NTSB MKC65A0076](https://openairdocs.org/ntsb/MKC65A0076.md): Learjet 23 · Wichita, KS · Accident · No injuries · Closed · Jun 14, 1965 · N802L · Substantial damage - [NTSB UNK64X2114](https://openairdocs.org/ntsb/UNK64X2114.md): Lear M23 · Wichita, KS · Accident · No injuries · Closed · Jun 4, 1964 · N801L · Destroyed - [NTSB UNK64X1054](https://openairdocs.org/ntsb/UNK64X1054.md): Lear Jet 23 · Wichita, KS · Accident · No injuries · Closed · Mar 27, 1964 · N802L · Substantial damage ## The whole list in SQL Runs in DuckDB 1.2 or later on the release's Parquet files over HTTPS: ```sql 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 ('5170102') ORDER BY c."eventDate" DESC, c."ntsbNumber" DESC ``` This list as a web page: https://openairdocs.org/model/learjet-23/ntsb --- 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.