# NTSB investigations, 1984: Main 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 ANC85LA020](https://openairdocs.org/ntsb/ANC85LA020.md): Embraer EMB-110 · Fairbanks, AK · Accident · No injuries · Limited investigation · Final report · Nov 20, 1984 · N39174 · Substantial damage > The acft sustained substantial damage when the landing gear collapsed during landing. Tests conducted by the acft operator and acft manufacturer failed to provide any reason for the gear collapse. Both plts stated the gear was down and locked upon touchdown. - [NTSB MKC85LA016](https://openairdocs.org/ntsb/MKC85LA016.md): Cessna 401A · Springfield, MO · Accident · No injuries · Limited investigation · Final report · Nov 6, 1984 · N6294Q · Substantial damage > After a gear collapse following a manual extension of landing gear due to an electrical failure the acft was afforded a temporary repair by clamping a wrench to the landing gear strut to 'stiff-leg' it. The gear collapsed again during taxi to the active… - [NTSB MKC85LA011](https://openairdocs.org/ntsb/MKC85LA011.md): Cessna 310J · Chanute, KS · Accident · No injuries · Limited investigation · Final report · Oct 31, 1984 · N3074L · Substantial damage > During the landing roll the left main landing gear collapsed. Examination of the acft after the accident revealed several mechanical discrepancies. The only gear related problem noted was the landing gear limit switches were out of adjustment but it could not… - [NTSB DEN85LA012](https://openairdocs.org/ntsb/DEN85LA012.md): Piper PA-34-220T · Creede, CO · Accident · No injuries · Limited investigation · Final report · Oct 16, 1984 · N8011J · Substantial damage > According to the plt, just prior to landing, at about 5 ft AGL, the gear warning horn sounded and the right main gear down and locked light flickered. The landing was continued and the right gear collapsed during the rollout. A mechanic who examined the acft… - [NTSB CHI84LA393](https://openairdocs.org/ntsb/CHI84LA393.md): Pickel Smith Miniplane · Covington, IN · Accident · No injuries · Limited investigation · Final report · Sep 18, 1984 · N5023D · Substantial damage > The pilot stated after the accident that during the landing roll the left wheel separated from the aircraft. The aircraft slid aprx 40 feet and nosed over. The plt stated that he had removed the main landing gear aprx 10 hrs prior to the accident to repack… - [NTSB ATL84LA281](https://openairdocs.org/ntsb/ATL84LA281.md): Piper PA-23-250 · Cheraw, SC · Accident · No injuries · Limited investigation · Final report · Sep 16, 1984 · N14217 · Substantial damage > According to the plt, after 100 to 150 ft of landing roll the right main landing gear collapsed. - [NTSB ANC84LA165](https://openairdocs.org/ntsb/ANC84LA165.md): Maule M-4-210C · Tok, AK · Accident · No injuries · Limited investigation · Final report · Sep 4, 1984 · N9820M · Substantial damage > The acft landed on an unimproved airstrip and the landing gear collapsed during the landing roll. The plt indicated he should have avoided the rough airstrip. - [NTSB NYC84LA297](https://openairdocs.org/ntsb/NYC84LA297.md): Piper PA-601P · Teterboro, NJ · Accident · No injuries · Limited investigation · Final report · Aug 23, 1984 · N18ZZ · Substantial damage > Acft was cleared to taxi to the rwy. Taxiway was blocked by construction. Plt elected to taxi to runup area to make a 180 deg turn. Plt turned right and right main gear went off pavement onto the soft shoulder and collapsed. - [NTSB NYC84LA290](https://openairdocs.org/ntsb/NYC84LA290.md): Piper PA-38-112 · Caldwell, NJ · Accident · No injuries · Limited investigation · Final report · Aug 21, 1984 · N24397 · Substantial damage > The instructor plt stated that while he was giving instruction, he made a normal landing. When the wheels touched down, the right main gear snapped off & hit the side of the fuselage. The acft then skidded along the rwy until it came to rest. - [NTSB MIA84LA217](https://openairdocs.org/ntsb/MIA84LA217.md): Cessna 310 · Key Largo, FL · Accident · No injuries · Limited investigation · Final report · Aug 5, 1984 · N3623D · Substantial damage > Plt stated gear was lowered for landing but down & locked light did not illuminate. Gear was recycled and as observed through an outside mirror, plt stated gear appeared down. Following touchdown and a 75 ft ground roll the rt main gear collapsed. - [NTSB MKC84LA238](https://openairdocs.org/ntsb/MKC84LA238.md): Cessna 401 · Hutchinson, KS · Accident · No injuries · Limited investigation · Final report · Aug 3, 1984 · N101SB · Substantial damage > While taxiing for takeoff the plt turned from the taxiway onto the rwy & the left main gear collapsed. Post crash examination of the left gear revealed that the ldg gear wing rib support bracket failed allowing the gear to collapse. A Cessna service letter… - [NTSB CHI84LA327](https://openairdocs.org/ntsb/CHI84LA327.md): Gulfstream 690 · Detroit, MI · Accident · No injuries · Limited investigation · Final report · Aug 3, 1984 · N700CB · Substantial damage > On right engine start the right main landing gear collapsed. The gear handle was found in the down position after the accident. Functional and bench check of the actuating components revealed no discrepancies. - [NTSB FTW84FA335](https://openairdocs.org/ntsb/FTW84FA335.md): Rockwell 690B · Fort Worth, TX · Accident · No injuries · Field investigation · Final report · Aug 2, 1984 · N81865 · Substantial damage > The acfts right main landing gear retracted during landing roll. During initial examination of the gear by FAA it was noted that one of the two clevis fittings had separated from the gear casting. It remained attached to the rod end bearing on the push/pull… - [NTSB NYC84LA260](https://openairdocs.org/ntsb/NYC84LA260.md): Cessna 335 · University Park, PA · Accident · No injuries · Limited investigation · Final report · Aug 1, 1984 · N6821C · Substantial damage > The acft experienced a rt main gear collapse during landing. The plt stated that the gear was checked down & locked on base & final apch. After landing, according to the plts statement, the landing gear warning sounded & the acft started aturn to the rt. A… - [NTSB FTW84LA312](https://openairdocs.org/ntsb/FTW84LA312.md): Piper PA-28R-200 · Lake Charles, LA · Accident · No injuries · Limited investigation · Final report · Jul 15, 1984 · N1456X · Substantial damage > The plt landed on the edge of a 90 ft wide turf rwy which was soft due to recent rains. The acft drifted off into a ditch causing the collapse of the left main gear. - [NTSB DEN84LA190](https://openairdocs.org/ntsb/DEN84LA190.md): Cessna 180 · Gallup, NM · Accident · No injuries · Limited investigation · Final report · Jun 21, 1984 · N153M · Substantial damage > During the landing roll, the right gear collapsed & the acft veered off the rwy. An exam revealed that the right wheel ass'y had separated from the gear leg. There was evidence that the 2 lower bolts had been stripped prior to the wheel failure, either by… - [NTSB DEN84LA182](https://openairdocs.org/ntsb/DEN84LA182.md): Cessna 180C · Lustre, MT · Accident · No injuries · Limited investigation · Final report · Jun 16, 1984 · N9311T · Substantial damage > Due to strong crosswind conditions at the prepared landing strip, the pilot elected to land in an open field. On touchdown, the right main landing gear encountered a hole, breaking the mounting structure and collapsing the gear. A ground loop ensued. The… - [NTSB NYC84LA207](https://openairdocs.org/ntsb/NYC84LA207.md): Helio 295 · So. Burlington, VT · Accident · No injuries · Limited investigation · Final report · Jun 7, 1984 · N6485V · Substantial damage > The left main gear collapsed during landing roll-out. The plt/owner had been practicing touch and go landings. - [NTSB NYC84LA190](https://openairdocs.org/ntsb/NYC84LA190.md): Cessna C190 · South Kingston, RI · Accident · No injuries · Limited investigation · Final report · May 28, 1984 · N68T · Substantial damage > Anticipating deteriorating weather conditions, the pilot decided to land at an unfamiliar airstrip. He landed long and had commenced a go-around but the landing gear caught in swamp growth and collapsed. - [NTSB ATL84LA180](https://openairdocs.org/ntsb/ATL84LA180.md): Cessna 140 · Harrisonburg, VA · Accident · No injuries · Limited investigation · Final report · May 19, 1984 · N72115 · Substantial damage > The acft's left main landing gear strut failed during a landg. A mechanic, who examined the acft, stated that the strut had a previously existing crack prior to the accident. The strut failed at a hole where the step was attached. - [NTSB DEN84LA129](https://openairdocs.org/ntsb/DEN84LA129.md): Cessna 140 · Aurora, CO · Accident · No injuries · Limited investigation · Final report · Apr 15, 1984 · N89984 · Substantial damage > According to the plt, the acft suddenly ground looped during the landing & departed the rwy. An investigation revealed that the left gear leg had collapsed at some time during the accident sequence. The left gear leg pin, which was found sheared, had a dark… - [NTSB DEN84LA128](https://openairdocs.org/ntsb/DEN84LA128.md): Cessna 421C · Farmington, NM · Accident · No injuries · Limited investigation · Final report · Apr 15, 1984 · N6205X · Substantial damage > While taxiing after landing, the acft was in a left turn when the right main gear collapsed. The plt reported that all 3 gear indicated down & lock, both before & after the mishap. An exam of the right main gear actuator, pn 9910136-4, revealed that… - [NTSB MKC84LA117](https://openairdocs.org/ntsb/MKC84LA117.md): Cessna 401 · Wichita, KS · Accident · No injuries · Limited investigation · Final report · Apr 5, 1984 · N101SB · Substantial damage > The plt reported that 3-4 secs after he made a smooth landing, the right main landing gear collapsed. The acft then went off the side of the rwy & struck a sign. Post-accident inspection indicated that the right gear had been down & locked before the gear had… - [NTSB NYC84LA141](https://openairdocs.org/ntsb/NYC84LA141.md): Piper PA-23 · Lawrence, MA · Accident · No injuries · Limited investigation · Final report · Mar 24, 1984 · N2080P · Substantial damage > As the plt completed his landing, he let the acft roll-out to the intersection of rwys 32 & 23 where he intended to turn off the active rwy. He reported that when he came to the intersection, the right gear 'collapsed' (retracted) & the acft skidded to the… - [NTSB CHI84LA130](https://openairdocs.org/ntsb/CHI84LA130.md): Cessna 401 · Chicago, IL · Accident · No injuries · Limited investigation · Final report · Mar 15, 1984 · N777CS · Substantial damage > The acfts left main gear collapsed during the landing roll. Investigation revealed that the bolt on the top portion of the LH bellcrank assembly was sheared off. One of the tangs at the bottom of the bellcrank was also broken. When examined under a 10 power… - [NTSB CHI84LA128](https://openairdocs.org/ntsb/CHI84LA128.md): Cessna 421B · Madison, WI · Accident · No injuries · Limited investigation · Final report · Mar 10, 1984 · N41022 · Substantial damage > The acft went off the rwy to the left during landing. There was a crosswind of 15-28 KTS at the time. The plt said the acft veered left and could not be controlled. After the accident the was 464P-26 bolt and 5133-4032 spacer were sheared off both the left… - [NTSB NYC84FA089](https://openairdocs.org/ntsb/NYC84FA089.md): Cessna 401A · Linden, NJ · Accident · No injuries · Field investigation · Final report · Feb 18, 1984 · N6252Q · Substantial damage > The main landing gear collapsed after landing. A CFI awaiting takeoff said that the approach and touchdown were normal with the gear down. As the acft rolled the left main gear collapsed and the acft gradually left the rwy and became miredin mud. Inspection… - [NTSB MIA84LA085](https://openairdocs.org/ntsb/MIA84LA085.md): Beech 95-B55 · St Augustine, FL · Accident · No injuries · Limited investigation · Final report · Feb 17, 1984 · N1767W · Substantial damage > The acft landed with its left main gear jammed in the up position. Since the landing gear warning and indicating system indicated all normal the crew was unaware of the problem until the roll out. Investigation revealed that the left main gear actuating motor… - [NTSB MIA84FA084](https://openairdocs.org/ntsb/MIA84FA084.md): Douglas DC-3 · Miami, FL · Accident · No injuries · Field investigation · Final report · Feb 17, 1984 · N922CA · Substantial damage > While taxiing for takeoff, the coplt attempted to increase the pressure in the landing gear downline by placing the landing gear hydraulic handle in the down position. The coplt believed that he confused the procedure & pulled up on the landing gear lock… - [NTSB CHI84IA111](https://openairdocs.org/ntsb/CHI84IA111.md): Swearingen SA-26AT · Indianapolis, IN · Incident · No injuries · Incident investigation · Final report · Feb 16, 1984 · N175P · Minor damage > The plt was on a local flt to check the aileron rigging after maintenance had been performed on it. After taking off, he remained in the traffic pattern. On downwind, after extending the landing gear, he noted an unsafe right main gear indication. The plt… - [NTSB LAX84LA141](https://openairdocs.org/ntsb/LAX84LA141.md): Cessna 310 · Tucson, AZ · Accident · No injuries · Limited investigation · Final report · Jan 15, 1984 · N8926Z · Substantial damage > The right main landing gear collapsed as the acft was being taxied to the ramp. The plt reported that the acft was traveling about 30 mph during entry into the taxi turn-off area at the time of the accident. Failure occurred in theright rear trunion pin. - [NTSB MKC84LA061](https://openairdocs.org/ntsb/MKC84LA061.md): Piper J-3 · Battle Creek, NE · Accident · No injuries · Limited investigation · Final report · Jan 9, 1984 · N6839H · Substantial damage > The acft as taxiing on a hard packed snow covered field when the right main landing gear collapsed. Visual inspection did not show any signs of fatigue. Slight bending and overload separtion of the shock strut tubing was evident. - [NTSB NYC84FA064](https://openairdocs.org/ntsb/NYC84FA064.md): Canadair CL44D4 · East Boston, MA · Accident · No injuries · Field investigation · Final report · Jan 2, 1984 · N104BB · Substantial damage > The acft landed with the right main landing gear in the retracted position. The crew was unable to lower the right main gear by the normal or emergency methods. Inspection after the accident revealed that the main hydraulic line. Pn 44-75087-98 was broken… ## 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" = 191) ORDER BY c."eventDate" DESC, c."ntsbNumber" DESC ``` This list as a web page: https://openairdocs.org/ntsb?occurrence=191&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.