# NTSB investigations, 1984: 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 MKC85FA032](https://openairdocs.org/ntsb/MKC85FA032.md): Swearingen SA226TC · Harrison, AR · Accident · No injuries · Field investigation · Final report · Dec 7, 1984 · N511SS · Substantial damage > The acft was being operated as skyways flt 488. The first officer was flying the acft. The acft touched down on the rwy aprx 1584 feet from the approach end and after a short roll, the landing gear warning horn sounded and the left wing settled to the ground.… - [NTSB MIA85LA017](https://openairdocs.org/ntsb/MIA85LA017.md): Piper PA-23-250 · Williston, FL · Accident · Minor injuries · Limited investigation · Final report · Oct 23, 1984 · N24UE · Destroyed > The left seat pilot stated that he was doing touch and go landings on runway 04. He continued to state that on the last landing he touched down on the runway, then added full power and retracted the flaps, but inadvertantly retracted the landing gear. The… - [NTSB LAX84LA430](https://openairdocs.org/ntsb/LAX84LA430.md): Beech A36 · Van Nuys, CA · Accident · No injuries · Limited investigation · Final report · Aug 4, 1984 · N2859W · Substantial damage > The acft landed 'gear up' during practice takeoffs and landings. The plt stated that he 'forgot' to extend the landing gear prior to landing. The tower had given him instructions to 'make a short approach.' No mechanical problems were reported. - [NTSB SEA84LA189](https://openairdocs.org/ntsb/SEA84LA189.md): Mooney M20E · Scappoose, OR · Accident · No injuries · Limited investigation · Final report · Jul 29, 1984 · N5566Q · Substantial damage > Plt lowered gear in traffic pattern and gear down and locked green light was received. Plt failed to check the gear bar indicator. Acft touched down with gear extended 1/4 of the way. Inspection revealed landing gear motor bearingswere worn out. - [NTSB CHI84IA224](https://openairdocs.org/ntsb/CHI84IA224.md): Beech 99 · Chicago, IL · Incident · Minor injuries · Incident investigation · Final report · Jun 9, 1984 · N320BA · Minor damage > Landing gear extended but not locked. Crew could not rectify situation by using normal and emergency gear extension procedures. Gear collapsed on touchdown. Investigation disclosed a fatigue crack in rt main gear hydraulic actuator allowing a loss of… - [NTSB MIA84IA177](https://openairdocs.org/ntsb/MIA84IA177.md): Grumman G-111 · West Palm Beach, FL · Incident · No injuries · Incident investigation · Final report · Jun 3, 1984 · N112FB · Minor damage > After a repositioning flt, the main gear collapsed. An exam of the hand pump selector control valve revealed that one of the two dump ports for thr flap position had a hydraulic leak. Reportedly, this allowed system pressure to retract the gear. The valve,… - [NTSB MKC84LA137](https://openairdocs.org/ntsb/MKC84LA137.md): Beech BE95A55 · Springfield, MO · Accident · No injuries · Limited investigation · Final report · May 13, 1984 · N323E · Substantial damage > The acft landing gear collapsed during landing. The plt said he was following a metroliner & put the gear handle 'down' but does not remember the gear indicators. He reduced the throttles to about 11 inches of manifold pressure & does not remember hearing a… - [NTSB MIA84LA131](https://openairdocs.org/ntsb/MIA84LA131.md): Piper PA-23-250 · Titusville, FL · Accident · No injuries · Limited investigation · Final report · Apr 7, 1984 · N6890Y · Substantial damage > The plt could not get the left main gear extended for landing and then could not get the right main and nose gear to retract for a'belly'landing. The acft was landed on the sod beside the rwy with the left main retracted. The nose gear collapsed during the… - [NTSB LAX84LA240](https://openairdocs.org/ntsb/LAX84LA240.md): Beech 95-B55 · Phoenix, AZ · Accident · No injuries · Limited investigation · Final report · Apr 4, 1984 · N5802S · Substantial damage > The gear was inadvertently retracted at about 50 mph by the pilot in command during landing roll. - [NTSB MIA84LA087](https://openairdocs.org/ntsb/MIA84LA087.md): Beech B-58 · Tallahassee, FL · Accident · No injuries · Limited investigation · Final report · Feb 18, 1984 · N21BR · Substantial damage > The acft landed with the right main gear & nose gear stuck in the retracted position, with the left main gear stuck in the extended position. Investigation revealed that the landing gear actuating rod had failed. - [NTSB LAX84LA159](https://openairdocs.org/ntsb/LAX84LA159.md): Beech D55 · Monterey, CA · Accident · No injuries · Limited investigation · Final report · Jan 24, 1984 · N873LB · Substantial damage > According to the plt, he extended the gear & flaps before landing, & on final apch, he rechecked that the gear was down & the green gear down & locked light was illuminated. He & both passengers reported that the acft touched down on the wheels, then it… - [NTSB CHI84FA076](https://openairdocs.org/ntsb/CHI84FA076.md): Beech BE-99 · Galesburg, IL · Accident · No injuries · Field investigation · Final report · Jan 3, 1984 · N317VA · Substantial damage > The main gear retracted while the acft was being taxied to the taxioff position. Investigation revealed that a landing gear maintenance valve PN22400-1, SN19 manufactured by airright inc had corroded and was allowing stray voltage to cyclethe 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 year(c."eventDate") = 1984 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=1984 --- 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.