# NTSB investigations, 1989: 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 ATL90LA036](https://openairdocs.org/ntsb/ATL90LA036.md): Cessna 550 · Covington, KY · Accident · No injuries · Limited investigation · Final report · Nov 30, 1989 · N171LE · Substantial damage
  > Failure of the pilot-in-command (PIC) to extend the landing gear and inadequate monitoring by the check pilot, which resulted in a wheels-up landing.
- [NTSB ATL90IA033](https://openairdocs.org/ntsb/ATL90IA033.md): Boeing 727-225 · Atlanta, GA · Incident · No injuries · Incident investigation · Final report · Nov 29, 1989 · N8835E · Minor damage
  > Inadequate maintenance and inspection by the operator.
- [NTSB LAX90LA022](https://openairdocs.org/ntsb/LAX90LA022.md): Beech D17S · Flagstaff, AZ · Accident · No injuries · Limited investigation · Final report · Nov 6, 1989 · N80024 · Destroyed
  > An inadvertent gear-up landing by the pilot. A contributing factor was the pilot's acceptance of a visual gear-up warning as normal since it is on all the time.
- [NTSB DEN89LA220](https://openairdocs.org/ntsb/DEN89LA220.md): Cessna 182RG · Englewood, CO · Accident · No injuries · Limited investigation · Final report · Sep 17, 1989 · N7346X · Substantial damage
  > The pilot failed to extend the landing gear. The pilot's anxiety and/or apprehension about a suspected loss of electrical power, and his attention being diverted by other traffic were contributing factors.
- [NTSB MIA89IA247](https://openairdocs.org/ntsb/MIA89IA247.md): Beech G18S · Jackson, MS · Incident · No injuries · Incident investigation · Final report · Sep 13, 1989 · N9604R · Minor damage
  > Failure of the pilot to correctly perform the emergency gear extension procedures. Contributing to the accident was the failure of the normal gear extension system.
- [NTSB MIA89LA230](https://openairdocs.org/ntsb/MIA89LA230.md): Piper PA-44-180 · St Augustine, FL · Accident · No injuries · Limited investigation · Final report · Aug 23, 1989 · N8517D · Substantial damage
  > Inadvertent retraction of the landing gear, and the instructor pilot's inadequate supervision of the flight.
- [NTSB ATL89IA187](https://openairdocs.org/ntsb/ATL89IA187.md): Boeing 737-400 · Greensboro, NC · Incident · No injuries · Incident investigation · Final report · Aug 2, 1989 · N413US · Minor damage
  > Failure of the line mechanic, a check mechanic, and first officer to identify and remove the wheel chock from the wheel well during the required inspections.
- [NTSB MKC89IA168](https://openairdocs.org/ntsb/MKC89IA168.md): Beech 65-90 · Springdale, AR · Incident · No injuries · Incident investigation · Final report · Jul 26, 1989 · N195DP · Minor damage
  > The pilot's failure to extend the landing gear.
- [NTSB MKC89LA144](https://openairdocs.org/ntsb/MKC89LA144.md): Cessna 210 · Kaiser, MO · Accident · No injuries · Limited investigation · Final report · Jun 26, 1989 · N9440T · Substantial damage
  > Failure of the pilot to extend the landing gear. A factor in the accident was the pilot's failure to use the checklist.
- [NTSB MKC89LA122](https://openairdocs.org/ntsb/MKC89LA122.md): Piper PA-30 · Columbia, MO · Accident · No injuries · Limited investigation · Final report · Jun 1, 1989 · N154P · Substantial damage
  > The gear-up landing which was made by an unknown/unauthorized person.
- [NTSB CHI89LA098](https://openairdocs.org/ntsb/CHI89LA098.md): Cessna P210N · Wheeling, IL · Accident · No injuries · Limited investigation · Final report · May 30, 1989 · N4763P · Substantial damage
  > Failure of the pilot to extend the landing gear, which resulted in a wheels-up landing.
- [NTSB ANC89LA078](https://openairdocs.org/ntsb/ANC89LA078.md): Piper PA-31 · Tok Junction, AK · Accident · No injuries · Limited investigation · Final report · May 20, 1989 · N87TS · Substantial damage
  > The pilot's failure to lower the landing gear for landing. A factor related to the accident was his failure to use a checklist.
- [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 MKC89LA103](https://openairdocs.org/ntsb/MKC89LA103.md): Beech 58 · Brainerd, MN · Accident · Minor injuries · Limited investigation · Final report · May 6, 1989 · N8152R · Substantial damage
  > The pilot's failure to follow procedures which resulted in the failure to extend the landing gear prior to touchdown. A contributing factor was the pilot's inattentiveness.
- [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 MIA89FA138](https://openairdocs.org/ntsb/MIA89FA138.md): Swearingen SA-226-AT · Jacksonville, FL · Accident · No injuries · Field investigation · Final report · Apr 27, 1989 · N39RD · Substantial damage
  > The failure of the pilot in command to use the airplane landing checklist and assure that the landing gear was down and locked prior to landing.
- [NTSB MKC89LA095](https://openairdocs.org/ntsb/MKC89LA095.md): Beech BE-55 · Hot Springs, AR · Accident · No injuries · Limited investigation · Final report · Apr 22, 1989 · N7739R · Substantial damage
  > A wheels up landing was performed by the pilot in command, due to the interrupted landing and go-around. A psychological traffic pattern habit interference mind set interfered with the pilots ability to perform the normal functions required by the landing…
- [NTSB ATL89LA124](https://openairdocs.org/ntsb/ATL89LA124.md): Cessna 172RG · Miamisburg, OH · Accident · No injuries · Limited investigation · Final report · Apr 10, 1989 · N9688B · Substantial damage
  > Intermittant grounding of an electrical wire to the nose landing gear. The chafed wire resulted in the opening of the landing gear motor circuit breaker preventing full extension of the left main landing gear. A secondary failure of the throttle warning…
- [NTSB NYC89LA087](https://openairdocs.org/ntsb/NYC89LA087.md): Cessna 172RG · Durhamville, NY · Accident · No injuries · Limited investigation · Final report · Feb 20, 1989 · N9530B · Substantial damage
  > Failure of the pilot to extend the landing gear before landing after allowing his attention to be diverted.
- [NTSB DEN89LA068](https://openairdocs.org/ntsb/DEN89LA068.md): Piper PA-34-200T · Las Cruces, NM · Accident · No injuries · Limited investigation · Final report · Jan 24, 1989 · N3070M · Substantial damage
  > The loss of right engine power for undetermined reason(s), and the failure of the instructor pilot to feather the right engine. Factors related to the accident were: failure of the left main gear locking mechanism to engage and the unprepared (rough/uneven)…

## 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 year(c."eventDate") = 1989
  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&year=1989

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