# NTSB investigations, CA: Gear not extended

NTSB aviation accident and incident investigations since 1962: the probable cause, findings, aircraft, crew, weather and docket of each, linked to the FAA registry and the FAA’s own reports.

## Latest cases

- [NTSB LAX93LA340](https://openairdocs.org/ntsb/LAX93LA340.md): Cessna 177RG · Cameron Park, CA · Accident · No injuries · Limited investigation · Final report · Aug 28, 1993 · N33195 · Substantial damage
  > The pilot's failure to assure that the landing gear was down and locked. Factors relating to this accident were the alternator failure due to a broken wire and the low battery output.
- [NTSB LAX93LA174](https://openairdocs.org/ntsb/LAX93LA174.md): Cessna T310R · Groveland, CA · Accident · No injuries · Limited investigation · Final report · Apr 9, 1993 · N3532G · Substantial damage
  > Failure of the pilot to follow the airplane's checklist which resulted in an inadvertent gear up landing.
- [NTSB LAX93LA116](https://openairdocs.org/ntsb/LAX93LA116.md): Cessna 210 · Fullerton, CA · Accident · No injuries · Limited investigation · Final report · Feb 12, 1993 · N9668T · Substantial damage
  > The pilot's failure to follow the checklist. A factor relating to this accident was the misadjustment of the landing gear locking mechanism which caused intermittent operation.
- [NTSB LAX91LA277](https://openairdocs.org/ntsb/LAX91LA277.md): Fairchild SA227-AC · Visalia, CA · Accident · No injuries · Limited investigation · Final report · Jun 11, 1991 · N348AE · Substantial damage
  > The instructor/pilot-in-command's failure to adequately supervise the flight and the second pilot's improper use of the checklist and failure to maintain crew coordination to ensure that the landing gear was extended. Contributing to the accident was the…
- [NTSB LAX90IA305](https://openairdocs.org/ntsb/LAX90IA305.md): Boeing 747-422 · Los Angeles, CA · Incident · Minor injuries · Incident investigation · Final report · Aug 27, 1990 · N174UA · Minor damage
  > The failure of the manufacturer to ensure that the landing gear selector valves and their associated drum link assemblies were properly installed prior to delivery of the aircraft. A factor in the accident was the lack of information available to the crew…
- [NTSB LAX90IA293](https://openairdocs.org/ntsb/LAX90IA293.md): Boeing 737-322 · Los Angeles, CA · Incident · No injuries · Incident investigation · Final report · Aug 21, 1990 · N305UA · Minor damage
  > Improper maintenance service by a company employee who allowed a foreign object (flashlight) to remain in the landing gear extend/retract linkage during a night servicing before the flight.
- [NTSB LAX89LA187](https://openairdocs.org/ntsb/LAX89LA187.md): Cessna T210N · Monterey, CA · Accident · No injuries · Limited investigation · Final report · May 12, 1989 · N7568N · Substantial damage
  > The pilots improper use of the checklist when his attention was diverted.
- [NTSB LAX89LA183](https://openairdocs.org/ntsb/LAX89LA183.md): Piper PA-24 · Montague, CA · Accident · No injuries · Limited investigation · Final report · May 6, 1989 · N550V · Substantial damage
  > The pilot's failure to extend the landing gear because of inattention. Contributing to the accident was inadequate maintenance of the airplane which failed to repair the landing gear warning throttle position switch.
- [NTSB LAX88LA318](https://openairdocs.org/ntsb/LAX88LA318.md): Cessna T310R · La Verne, CA · Accident · No injuries · Limited investigation · Final report · Sep 16, 1988 · N5126J · Substantial damage
  > The pilot stated that he was troubleshooting a problem with the airplane's fuel flow system. During the preflight run-up, he noticed that the fuel flow gauge for the right engine was reading too high. He took off to see if he could make an inflight…
- [NTSB LAX88LA208](https://openairdocs.org/ntsb/LAX88LA208.md): Piper PA-34-200T · Corona, CA · Accident · No injuries · Limited investigation · Final report · Jun 7, 1988 · N2710M · Substantial damage
  > Company maintenance personnel had replaced the nose landing gear assy and had conducted retraction tests prior to releasing the acft for flt. After takeoff the lndg gear was retracted and the flt was conducted without incident until, upon entering the traffic…
- [NTSB LAX87LA262](https://openairdocs.org/ntsb/LAX87LA262.md): Piper PA-31T2 · Novato, CA · Accident · No injuries · Limited investigation · Final report · Jul 8, 1987 · N38WA · Substantial damage
  > At the end of a cross country flt, the plt reported that he had extended the landing gear aprx 5 miles from the arpt and lowered partial flaps. Aprx 2 miles from the arpt the plt made shallow s turns for spacing and extended the rest of the flaps. The plt…
- [NTSB LAX85LA381](https://openairdocs.org/ntsb/LAX85LA381.md): Cessna 402A · San Jose, CA · Accident · No injuries · Limited investigation · Final report · Sep 4, 1985 · N4597Q · Substantial damage
  > The aircraft landed gear up. The pilot reported no malfunction and said he forget to lower the landing gear.

## 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_case_detail.parquet' c LEFT JOIN 'https://openairdocs.org/data/latest/ntsb_aircrafts.parquet' a ON a.case_mkey = c."mKey" AND a.position = 1
WHERE c."eventStateOrRegion" = 'CA' AND c."eventCountry" = 'USA'
  AND c."mKey" IN (SELECT o.case_mkey FROM 'https://openairdocs.org/data/latest/ntsb_occurrences.parquet' o WHERE o."occurrenceNumber" = 1 AND o."occurrenceCode" = 196)
ORDER BY c."eventDate" DESC, c."ntsbNumber" DESC
```

This list as a web page: https://openairdocs.org/ntsb?occurrence=196&state=CA

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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.
