# NTSB investigations, 2012: Landing gear collapse

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 ANC13LA016](https://openairdocs.org/ntsb/ANC13LA016.md): Cessna 150C · Juneau, AK · Accident · No injuries · Limited investigation · Final report · Dec 13, 2012 · N1901Z · Substantial damage
  > The collapse of the left main landing gear during the landing roll, as a result of fatigue cracking. Contributing to the accident was the improper maintenance of the landing gear.
- [NTSB DCA13WA020](https://openairdocs.org/ntsb/DCA13WA020.md): Boeing MD-82 · Johannesburg, South Africa · Incident · No injuries · Foreign investigation · Nov 13, 2012 · ZS-TOG · Minor damage
  > On November 13, 2012, a McDonnell Douglas MD-80, registration ZS-TOG, experienced a wheel failure on the left hand main gear during takeoff from O.R.Tambo International Airport (FAJS),, South Africa. The chartered flight was enroute to Kamuzu International…
- [NTSB CEN13IA059](https://openairdocs.org/ntsb/CEN13IA059.md): Fairchild SA227-AC · Minneapolis, MN · Incident · No injuries · Incident investigation · Final report · Nov 10, 2012 · N619BA · Minor damage
  > Loose electrical connections to the hydraulic system and anomalies in the hydraulic shuttle valve and power pack, which resulted in an uncommanded gear unlock and collapse of the left main landing gear. Contributing to the accident was the operator’s failure…
- [NTSB ERA13LA049](https://openairdocs.org/ntsb/ERA13LA049.md): Piper PA-28R-180 · Fort Lauderdale, FL · Accident · No injuries · Limited investigation · Final report · Nov 5, 2012 · N4534J · Substantial damage
  > The collapse of the right main landing gear during landing for reasons that could not be duplicated or determined during the postaccident investigation because of the initial unavailability of the airplane after the accident.
- [NTSB WPR13LA034](https://openairdocs.org/ntsb/WPR13LA034.md): Jeffair Barracuda · Payson, AZ · Accident · No injuries · Limited investigation · Final report · Oct 27, 2012 · N19GS · Substantial damage
  > The failure of the landing gear to remain extended during the landing roll for reasons that could not be determined because postaccident examination did not reveal any anomalies that would have precluded normal operation.
- [NTSB WPR13IA026](https://openairdocs.org/ntsb/WPR13IA026.md): Cessna P210N · Oakland, CA · Incident · No injuries · Incident investigation · Final report · Oct 27, 2012 · N43CE · Minor damage
  > The pilot’s failure to follow proper procedures to confirm that the main landing gear was down and locked before landing.
- [NTSB DCA13WA023](https://openairdocs.org/ntsb/DCA13WA023.md): Boeing 737 · Casablanca, Morocco · Incident · No injuries · Foreign investigation · Oct 24, 2012 · CN-ROA · Minor damage
  > On October 24, 2012 a Boeing 737-800, registration CN-ROA experienced a nosewheel failure during taxiing after landing at the Casablanca / Mohammed V Airport. The airplane was operated by Royal Air Maroc as flight 471 from Tunis, Tunisia. There were no…
- [NTSB ERA13CA047](https://openairdocs.org/ntsb/ERA13CA047.md): Daniels Alan L Kitfox Series 7 · Plymouth, MA · Accident · No injuries · Data collection · Final report · Oct 18, 2012 · N555HT · Substantial damage
  > The pilot's improper landing flare and subsequent inadequate recovery from a bounced landing.
- [NTSB CEN13IA024](https://openairdocs.org/ntsb/CEN13IA024.md): Flight Design Ctls · Elyria, OH · Incident · No injuries · Incident investigation · Final report · Oct 17, 2012 · N21ZA · Minor damage
  > The manufacturing defects in the main landing gear leg, which resulted in its eventual failure.
- [NTSB DCA13WA002](https://openairdocs.org/ntsb/DCA13WA002.md): Mcdonnell Douglas MD11 · Sao Paulo, Brazil · Accident · No injuries · Foreign investigation · Oct 13, 2012 · N988AR · Substantial damage
- [NTSB ERA13LA005](https://openairdocs.org/ntsb/ERA13LA005.md): Cessna 310I · Burlington, VT · Accident · No injuries · Limited investigation · Final report · Oct 2, 2012 · N8025M · Substantial damage
  > The collapse of the left main landing gear due to a failure of the left main gear bellcrank pin for reasons that could not be determined because the pieces of the fractured bellcrank pin were not located.
- [NTSB WPR12LA422](https://openairdocs.org/ntsb/WPR12LA422.md): Hawker MK 11 SEA Fury · Reno, NV · Accident · No injuries · Limited investigation · Final report · Sep 11, 2012 · N4434P · Substantial damage
  > The collapse of the right main landing gear due to failure of the landing gear rotary selector valve seal.
- [NTSB CEN12CA644](https://openairdocs.org/ntsb/CEN12CA644.md): Cessna 421C · Kenedy, TX · Accident · No injuries · Data collection · Final report · Sep 11, 2012 · N5534G · Substantial damage
  > The pilot’s improper flare, which resulted in a hard landing and subsequent collapse of the landing gear.
- [NTSB ERA12IA559](https://openairdocs.org/ntsb/ERA12IA559.md): Cessna 402B · Opa-Locka, FL · Incident · No injuries · Incident investigation · Final report · Sep 10, 2012 · N218LG · Minor damage
  > The pilot’s turning the airplane too sharply while exiting the runway, which resulted in the failure of the right main landing gear bellcrank due to an overstress fracture.
- [NTSB CEN12LA672](https://openairdocs.org/ntsb/CEN12LA672.md): Socata TBM 700 · Horseshoe Bay, TX · Accident · No injuries · Limited investigation · Final report · Sep 7, 2012 · N850ZM · Substantial damage
  > The off-centered right main landing gear ball joint, which resulted in the right main landing gear collapsing during landing.
- [NTSB WPR12CA320](https://openairdocs.org/ntsb/WPR12CA320.md): Piper PA-30 · Yelm, WA · Accident · No injuries · Data collection · Final report · Jul 22, 2012 · N8574Y · Substantial damage
  > The pilot's failure to maintain an adequate airspeed on approach and his inadequate flare, which resulted in a hard landing.
- [NTSB WPR12CA319](https://openairdocs.org/ntsb/WPR12CA319.md): Dornier DO 27 B5 · Jackson Hole, WY · Accident · No injuries · Data collection · Final report · Jul 22, 2012 · N780AX · Substantial damage
  > The pilot's selection of unsuitable terrain for landing, resulting in the collapse of the main landing gear.
- [NTSB ERA12LA441](https://openairdocs.org/ntsb/ERA12LA441.md): Piper PA-46-350P · Auburn, AL · Accident · No injuries · Limited investigation · Final report · Jul 6, 2012 · N4133G · Substantial damage
  > The airplane owner’s failure to have maintenance personnel comply with an aircraft manufacturer's service bulletin to require engine mount inspections for fatigue cracks, which resulted in an undetected fatigue crack, the engine mount failing, and the nose…
- [NTSB CEN12FA425](https://openairdocs.org/ntsb/CEN12FA425.md): Piper PA-28RT-201 · Mesquite, TX · Accident · Minor injuries · Field investigation · Final report · Jul 5, 2012 · N8308Y · Substantial damage
  > The failure of the right landing gear to fully extend, due to a combination of corrosion, inadequate lubrication, and a misadjusted gear-down limit switch. Contributing to the accident was the pilot's failure to perform the emergency landing gear extension…
- [NTSB CEN12LA456](https://openairdocs.org/ntsb/CEN12LA456.md): Piper PA-46-310P · Metropolis, IL · Accident · No injuries · Limited investigation · Final report · Jun 22, 2012 · N43840 · Substantial damage
  > Landing gear collapse for reasons that could not be determined because testing could not replicate the problem.
- [NTSB CEN12LA374](https://openairdocs.org/ntsb/CEN12LA374.md): Yakovlev Yak-52 · Loveland, CO · Accident · No injuries · Limited investigation · Final report · Jun 14, 2012 · N76YK · Substantial damage
  > The pilot’s inadvertent closure of the pneumatic system valve, which resulted in the nose landing gear not fully extending before landing. Contributing to the accident was the pilot's reliance on the mechanical landing gear position indicators instead of the…
- [NTSB WPR12LA262](https://openairdocs.org/ntsb/WPR12LA262.md): Cessna 120 · Smith Valley, NV · Accident · No injuries · Limited investigation · Final report · Jun 8, 2012 · N1875N · Substantial damage
  > The failure of the right main landing gear strut due to corrosion-induced fatigue, which resulted in a runway excursion.
- [NTSB CEN12WA364](https://openairdocs.org/ntsb/CEN12WA364.md): Piper PA23 · Igualada, Spain, Spain · Incident · No injuries · Foreign investigation · Jun 6, 2012 · EC-GGF · Minor damage
  > On June 9, 2012 about 1000 UTC, a Spanish registered Piper PA-23-250, EC-GCF, sustained minor damage when the left main landing gear collapsed during landing at Igualada Aerodrome, Spain. The pilot crew and five passengers on board the airplane were not…
- [NTSB WPR12LA261](https://openairdocs.org/ntsb/WPR12LA261.md): Piper PA46R-350T · Cameron Park, CA · Accident · No injuries · Limited investigation · Final report · Jun 5, 2012 · N488EA · Substantial damage
  > The fatigue failure of the nose landing gear actuator attach foot during the landing roll. Contributing to the accident was the non-compliance with the manufacturer’s service bulletin.
- [NTSB CEN12LA339](https://openairdocs.org/ntsb/CEN12LA339.md): Piper PA-32-260 · Applegate, MI · Accident · No injuries · Limited investigation · Final report · May 12, 2012 · N4727S · Substantial damage
  > The pilot’s decision to attempt to take off from an unimproved field, which resulted in a collapsed nose landing gear.
- [NTSB DCA12WA073](https://openairdocs.org/ntsb/DCA12WA073.md): Convair 440 · Ciudad de Guatemala, Guatemala · Accident · No injuries · Foreign investigation · May 11, 2012 · N171FL · Substantial damage
- [NTSB ANC12TA035](https://openairdocs.org/ntsb/ANC12TA035.md): Piper PA-18-150 · Paxon, AK · Accident · No injuries · Final report · Apr 28, 2012 · N7059 · Substantial damage
  > A separation of the right main landing gear suspension strut assembly due to overstress, which resulted in the collapse of the main landing gear while landing.
- [NTSB WPR12FA193](https://openairdocs.org/ntsb/WPR12FA193.md): Cessna 560XL · Eugene, OR · Accident · No injuries · Field investigation · Final report · Apr 27, 2012 · N101PG · Substantial damage
  > An uncommanded landing gear retraction after touchdown for reasons that could not be determined because postaccident examination did not reveal any mechanical malfunctions or failures that would have precluded normal operation.
- [NTSB CEN12CA272](https://openairdocs.org/ntsb/CEN12CA272.md): Tucker-Hurni Starduster SA-300 · Vidalia, LA · Accident · No injuries · Data collection · Final report · Apr 27, 2012 · N4523 · Substantial damage
  > The failure of the airplane’s right main landing gear due to a pre-existing fatigue crack and corrosion.
- [NTSB DCA12WA161](https://openairdocs.org/ntsb/DCA12WA161.md): Boeing 737 · Karachi, Pakistan · Incident · No injuries · Foreign investigation · Apr 22, 2012 · AP-BJN · Minor damage
  > On April 22, 2012, at about 12:35 local time, a Shaheen Boeing 737-400, registration number AP-BJN, operating as flight NL122 from Islamabad (ISB) to Karachi (KHI), Pakistan had the left main landing gear collapse upon landing KHI. It is reported that there…
- [NTSB ERA12LA287](https://openairdocs.org/ntsb/ERA12LA287.md): Piper PA-20 · Cross Keys, NJ · Accident · No injuries · Limited investigation · Final report · Apr 13, 2012 · N7001K · Substantial damage
  > The pilot's failure to maintain control of the airplane during landing, which resulted in the overstress and subsequent failure of the right main landing gear assembly.
- [NTSB ERA12LA296](https://openairdocs.org/ntsb/ERA12LA296.md): Jones SA105 · New Smyrna Beach, FL · Accident · No injuries · Limited investigation · Final report · Apr 3, 2012 · N320WJ · Substantial damage
  > The failure of the nose landing gear wooden attachment/support structure, which resulted in collapse of the nose landing gear during taxi. Contributing to the accident was the improper design of the nose landing gear attachment structure.
- [NTSB CEN12CA215](https://openairdocs.org/ntsb/CEN12CA215.md): Cessna 441 · Battle Creek, MI · Accident · No injuries · Data collection · Final report · Mar 27, 2012 · N1212C · Substantial damage
  > The maintenance technician did not remove the tow bar prior to the flight.
- [NTSB CEN12LA204](https://openairdocs.org/ntsb/CEN12LA204.md): Piper PA-30 · Roanoke, TX · Accident · No injuries · Limited investigation · Final report · Mar 2, 2012 · N373JT · Substantial damage
  > The pilot’s failure to follow the published emergency procedures to lower the landing gear following a loss of electrical power.
- [NTSB ERA12IA187](https://openairdocs.org/ntsb/ERA12IA187.md): Cessna 402B · Fort Lauderdale, FL · Incident · No injuries · Incident investigation · Final report · Feb 16, 2012 · N402GZ · Minor damage
  > The overload fracture of the right main landing gear bellcrank and a securing bolt, which resulted in the collapse of the right main landing gear.
- [NTSB ERA12LA188](https://openairdocs.org/ntsb/ERA12LA188.md): Piper PA-30 · Culpeper, VA · Accident · No injuries · Limited investigation · Final report · Feb 6, 2012 · N1WE · Substantial damage
  > The pilot's failure to use the manufacturer's checklist to troubleshoot the perceived malfunction and thereby ensure the position of the landing gear before landing. The reason the landing gear were not down and locked could not be determined, as no…
- [NTSB ERA12CA140](https://openairdocs.org/ntsb/ERA12CA140.md): Luscombe 8A · Umatilla, FL · Accident · No injuries · Data collection · Final report · Jan 7, 2012 · N77859 · Substantial damage
  > A failure of the left main landing gear due to a preexisting crack and corrosion, which resulted in a loss of directional control during landing.
- [NTSB ERA12LA132](https://openairdocs.org/ntsb/ERA12LA132.md): Piper PA-34-200T · Shelter Island, NY · Accident · No injuries · Limited investigation · Final report · Jan 2, 2012 · N8282P · Substantial damage
  > A hard landing, which resulted in a failure of the right main and collapse of the left main 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") = 2012
  AND c."mKey" IN (SELECT e.case_mkey FROM 'https://openairdocs.org/data/latest/ntsb_events.parquet' e WHERE e."isDefiningEvent" AND e."tier2Number" = '094')
ORDER BY c."eventDate" DESC, c."ntsbNumber" DESC
```

This list as a web page: https://openairdocs.org/ntsb-events/094/cases?year=2012

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