# NTSB investigations, 1999: 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 SEA00LA024](https://openairdocs.org/ntsb/SEA00LA024.md): Piper PA-12 · Goldendale, WA · Accident · No injuries · Limited investigation · Final report · Nov 28, 1999 · N7243V · Substantial damage
  > The pilot's failure to maintain directional control. A factor was a rock just off the edge of the runway surface.
- [NTSB ATL00LA013](https://openairdocs.org/ntsb/ATL00LA013.md): Beech BE36 · Daytona Beach, FL · Accident · No injuries · Limited investigation · Final report · Nov 14, 1999 · N3089A · Substantial damage
  > The collapse of the main landing gear for undetermined reasons.
- [NTSB ATL00LA010](https://openairdocs.org/ntsb/ATL00LA010.md): Cessna 310Q · Jacksonville, FL · Accident · No injuries · Limited investigation · Final report · Nov 10, 1999 · N310GC · Substantial damage
  > The failure of the left main landing gear down locking mechanism for undetermined reasons.
- [NTSB MIA00LA023](https://openairdocs.org/ntsb/MIA00LA023.md): Piper PA-34-200 · Olive Branch, MS · Accident · No injuries · Limited investigation · Final report · Nov 8, 1999 · N56676 · Substantial damage
  > The private-rated student pilots inadvertent retraction of the main landing gear during a touch-and-go landing. Contributing to the accident was the flight instructors improper supervision of the dual student.
- [NTSB MIA00LA016](https://openairdocs.org/ntsb/MIA00LA016.md): Cessna 152 · Cornelia, GA · Accident · No injuries · Limited investigation · Final report · Oct 28, 1999 · N5389Q · Substantial damage
  > the pilot misjudged the flare, causing the airplane to porpoise, and subsequently impact with the runway
- [NTSB CHI00LA010](https://openairdocs.org/ntsb/CHI00LA010.md): Cessna 172G · Cambridge, MN · Accident · No injuries · Limited investigation · Final report · Oct 15, 1999 · N4621L · Substantial damage
  > the fractured main landing gear due to the improper maintenance by an unknown person(s) and the inadequate annual inspection by an unqualified person.
- [NTSB ANC00LA002](https://openairdocs.org/ntsb/ANC00LA002.md): Cessna A185E · Yakutat, AK · Accident · No injuries · Limited investigation · Final report · Oct 7, 1999 · N85CG · Substantial damage
  > The pilot's selection of an unsuitable landing area. A factor associated with the accident was soft terrain.
- [NTSB NYC99LA230](https://openairdocs.org/ntsb/NYC99LA230.md): Cessna 182 · Pepperell, MA · Accident · No injuries · Limited investigation · Final report · Sep 18, 1999 · N2001G · Substantial damage
  > A landing gear bolt failure for undetermined reasons.
- [NTSB NYC99LA226](https://openairdocs.org/ntsb/NYC99LA226.md): Piper PA-22-108 · Manassas, VA · Accident · No injuries · Limited investigation · Final report · Sep 12, 1999 · N5125Z · Substantial damage
  > The pilot's failure to recover from a sideslip maneuver, and flare the airplane before touchdown.
- [NTSB MIA99LA248](https://openairdocs.org/ntsb/MIA99LA248.md): Douglas DC3C-S4C4G · Charlotte, NC · Accident · No injuries · Limited investigation · Final report · Jul 22, 1999 · N79017 · Substantial damage
  > the pilot-in-command did not use the check list which resulted in the right main landing gear collapsing.
- [NTSB LAX99LA227](https://openairdocs.org/ntsb/LAX99LA227.md): Cessna 120 · Chino, CA · Accident · No injuries · Limited investigation · Final report · Jun 25, 1999 · N2651N · Substantial damage
  > A preexisting fatigue fracture of the right axle.
- [NTSB SEA99LA088](https://openairdocs.org/ntsb/SEA99LA088.md): Ryan Navion B · Klamath Falls, OR · Accident · No injuries · Limited investigation · Final report · Jun 17, 1999 · N870DR · Substantial damage
  > The pilot's failure to reinstall the engine oil filler cap during preflight, resulting in engine oil loss and the necessity for an immediate landing.
- [NTSB LAX99LA241](https://openairdocs.org/ntsb/LAX99LA241.md): Rockwell 690B · Monterey, CA · Accident · No injuries · Limited investigation · Final report · Jun 17, 1999 · N480K · Substantial damage
  > The failure of maintenance personnel to properly adjust the drag brace preload during recent landing gear maintenance, which resulted in the overload failure and separation of the hydraulic cylinder attach boss.
- [NTSB DEN99LA100](https://openairdocs.org/ntsb/DEN99LA100.md): Butler SX-300 · Hill Afb, UT · Accident · No injuries · Limited investigation · Final report · Jun 12, 1999 · N120J · Substantial damage
  > A failure of the left main landing gear attachment for undetermined reasons.
- [NTSB DEN99LA094](https://openairdocs.org/ntsb/DEN99LA094.md): Cessna 182B · Salt Lake City, UT · Accident · No injuries · Limited investigation · Final report · Jun 6, 1999 · N2276G · Substantial damage
  > Failure of the nose landing gear scissors bolt for undetermined reasons.
- [NTSB NYC99LA154](https://openairdocs.org/ntsb/NYC99LA154.md): Cessna 172RG · Morristown, NJ · Accident · No injuries · Limited investigation · Final report · May 23, 1999 · N9475B · Substantial damage
  > The right main landing gear collapsed for undetermined reasons.
- [NTSB CHI99LA156](https://openairdocs.org/ntsb/CHI99LA156.md): Beech 99A · Bemidji, MN · Accident · No injuries · Limited investigation · Final report · May 17, 1999 · N133BA · Substantial damage
  > Failure of the left main landing gear actuator for undetermined reasons.
- [NTSB SEA99LA053](https://openairdocs.org/ntsb/SEA99LA053.md): Beech 35-C33 · Hillsboro, OR · Accident · No injuries · Limited investigation · Final report · Apr 18, 1999 · N1310A · Substantial damage
  > A landing gear collapse for undetermined reasons.
- [NTSB ANC99LA042](https://openairdocs.org/ntsb/ANC99LA042.md): Cessna 180 · Iliamna, AK · Accident · No injuries · Limited investigation · Final report · Apr 4, 1999 · N420SB · Substantial damage
  > The improper installation of the main landing gear attaching bolt by maintenance personnel, which resulted in total failure of the bolt and collapse of the landing gear.
- [NTSB NYC99IA079](https://openairdocs.org/ntsb/NYC99IA079.md): Cessna 550 · State College, PA · Incident · No injuries · Incident investigation · Final report · Mar 25, 1999 · N37MH · Minor damage
  > Improper assembly of the left main landing gear (LMLG) actuator by the airplane manufacturer, which resulted in an incorrect 'locked' indication on the LMLG switch, and the subsequent collapse of the LMLG during taxi.
- [NTSB CHI99LA097](https://openairdocs.org/ntsb/CHI99LA097.md): Cessna 182E · East Troy, WI · Accident · No injuries · Limited investigation · Final report · Feb 21, 1999 · N3177Y · Substantial damage
  > the collapse of the right main landing gear from a preexisting fatigue crack.

## 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") = 1999
  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=1999

---
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.