# NTSB investigations, 1997: Gear collapsed

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 LAX98LA036](https://openairdocs.org/ntsb/LAX98LA036.md): Cessna 172RG · San Diego, CA · Accident · No injuries · Limited investigation · Final report · Nov 12, 1997 · N9451D · Substantial damage
  > Overload of the main gear actuator piston and the subsequent collapse of the landing gear.
- [NTSB CHI98LA001](https://openairdocs.org/ntsb/CHI98LA001.md): Cessna T210N · Fargo, ND · Accident · No injuries · Limited investigation · Final report · Oct 1, 1997 · N5168A · Substantial damage
  > the circuit breaker for the hydraulic pump popped during gear extension which resulting in the failure of the landing gear to lock in the extended position.
- [NTSB FTW97LA370](https://openairdocs.org/ntsb/FTW97LA370.md): Cessna 210L · Albuquerque, NM · Accident · No injuries · Limited investigation · Final report · Sep 29, 1997 · N59217 · Substantial damage
  > The fracture of the right main hydraulic landing gear actuator housing assembly due to overload.
- [NTSB FTW97LA342](https://openairdocs.org/ntsb/FTW97LA342.md): Beech V35 · Sulphur Springs, TX · Accident · No injuries · Limited investigation · Final report · Sep 9, 1997 · N9453S · Substantial damage
  > the pilot's delayed extension of the landing gear.
- [NTSB LAX97LA277](https://openairdocs.org/ntsb/LAX97LA277.md): Cessna 310 · Mesa, AZ · Accident · No injuries · Limited investigation · Final report · Aug 9, 1997 · N8139M · Substantial damage
  > inadequate maintenance inspection of the landing gear system, following a prior incident, due to the mechanic's failure to follow the service manual instructions.
- [NTSB CHI97LA186](https://openairdocs.org/ntsb/CHI97LA186.md): Hulliberger Starduster II · Berrien Springs, MI · Accident · Minor injuries · Limited investigation · Final report · Jun 27, 1997 · N939H · Substantial damage
  > the failure of the landing gear axle due to fatigue.
- [NTSB FTW97LA216](https://openairdocs.org/ntsb/FTW97LA216.md): Wsk Pzl Mielec M-18 · Swifton, AR · Accident · Minor injuries · Limited investigation · Final report · Jun 12, 1997 · N6220C · Destroyed
  > Main landing gear collapse resulting from a failure of the torque link assembly attaching bolt. A factor was the lack of required maintenance (lubrication of the bolt) which resulted in the bolt becoming dry and corroded.
- [NTSB NYC97LA112](https://openairdocs.org/ntsb/NYC97LA112.md): Luscombe LL-8-E · Charlottesville, VA · Accident · No injuries · Limited investigation · Final report · Jun 10, 1997 · N1750K · Substantial damage
  > The left main landing gear collapsed due to corrosion.
- [NTSB CHI97LA087](https://openairdocs.org/ntsb/CHI97LA087.md): Cessna T210 · Janesville, WI · Accident · No injuries · Limited investigation · Final report · Mar 15, 1997 · N6677N · Substantial damage
  > the pilot inadvertently retracting the landing gear during the takeoff roll.
- [NTSB FTW97LA107](https://openairdocs.org/ntsb/FTW97LA107.md): Piper PA-32R-300 · Salida, CO · Accident · No injuries · Limited investigation · Final report · Feb 18, 1997 · N4477F · Substantial damage
  > The airplane's performance being exceeded due to the pilot's inadequate preflight planning. Factors were the uphill runway, high density altitude, and the pilot's lack of experience performing takeoffs from a high altitude airport.
- [NTSB NYC97LA047](https://openairdocs.org/ntsb/NYC97LA047.md): Cessna 650 · Wilkes-Barre, PA · Accident · No injuries · Limited investigation · Final report · Jan 24, 1997 · N777LF · Substantial damage
  > The collapse of the left main landing gear as a result of the malfunction of the downlock actuator for undetermined reasons.

## 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") = 1997
  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" = 190)
ORDER BY c."eventDate" DESC, c."ntsbNumber" DESC
```

This list as a web page: https://openairdocs.org/ntsb?occurrence=190&year=1997

---
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.