# NTSB investigations, MI: 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 CHI06CA279](https://openairdocs.org/ntsb/CHI06CA279.md): Meyers MAC-145 · Manistique, MI · Accident · No injuries · Data collection · Final report · Aug 6, 2006 · N34360 · Substantial damage
  > The pilot not verifying the landing gear selector position prior to starting the taxi.
- [NTSB CHI05CA244](https://openairdocs.org/ntsb/CHI05CA244.md): Cessna 414 · Drummond Island, MI · Accident · No injuries · Data collection · Final report · Aug 25, 2005 · N77DN · Substantial damage
  > The right main gear collapsed due to undetermined reasons. A factor associated with the accident was the fence that the airplane contacted.
- [NTSB CHI04LA199](https://openairdocs.org/ntsb/CHI04LA199.md): Rockwell 114 · Grand Rapids, MI · Accident · No injuries · Limited investigation · Final report · Jul 29, 2004 · N114TS · Substantial damage
  > The right main landing gear failed as a result of the fatigue fracture due to the casting defect (inclusion) during the manufacture process.
- [NTSB CHI99LA291](https://openairdocs.org/ntsb/CHI99LA291.md): Cessna 182 · Tecumseh, MI · Accident · No injuries · Limited investigation · Final report · Aug 11, 1999 · N6284A · Substantial damage
  > fracture of the right main landing gear strut.
- [NTSB CHI98LA249](https://openairdocs.org/ntsb/CHI98LA249.md): Cessna 190 · Pontiac, MI · Accident · No injuries · Limited investigation · Final report · Jul 14, 1998 · N56W · Substantial damage
  > improper procedures used during the replacement of the landing gear which resulted in pitting and corrosion of the gear spring.
- [NTSB CHI98LA210](https://openairdocs.org/ntsb/CHI98LA210.md): Cessna 180A · Bay City, MI · Accident · Minor injuries · Limited investigation · Final report · Jun 21, 1998 · N9753B · Substantial damage
  > a fatigue failure of the left nose gear caster bolt which resulted in a separation of the nose gear during landing.
- [NTSB CHI96IA125](https://openairdocs.org/ntsb/CHI96IA125.md): ATR 42 · Traverse City, MI · Incident · No injuries · Incident investigation · Final report · Apr 3, 1996 · N421MQ · Minor damage
  > improper use of procedures by maintenance personnel at an overhaul facility during overhaul of the landing gear, allowing corrosion to occur on the barrel lugs of the landing gear, which subsequently led to fatigue cracking of the lugs and eventual collapse…
- [NTSB CHI95LA147](https://openairdocs.org/ntsb/CHI95LA147.md): Cessna 172M · Brooklyn, MI · Accident · No injuries · Limited investigation · Final report · May 6, 1995 · N9347H · Substantial damage
  > Fatigue failure of the left main landing gear. Factors relating to the accident were: the pilot's improper flare for landing, and soft terrain.
- [NTSB CHI91LA133](https://openairdocs.org/ntsb/CHI91LA133.md): Cessna TR182 · Jackson, MI · Accident · No injuries · Limited investigation · Final report · Apr 15, 1991 · N4359R · Substantial damage
  > Failure to the pilot to assure gear extension. Factors related to the accident were the electrical failure due to a seized alternator and diverted attention by the pilot.
- [NTSB CHI90LA085](https://openairdocs.org/ntsb/CHI90LA085.md): Piper PA-28-161 · Pontiac, MI · Accident · No injuries · Limited investigation · Final report · Feb 18, 1990 · N8394D · Substantial damage
  > Overload failure of the left main landing gear attach bolts for an undetermined reason.
- [NTSB CHI87LA089](https://openairdocs.org/ntsb/CHI87LA089.md): Cessna 182F · Pontiac, MI · Accident · No injuries · Limited investigation · Final report · Feb 21, 1987 · N3513U · Substantial damage
  > While the acft was being taxied to a hangar after landing, the left main gear collapsed. An investigation revealed the left main landing gear spring strut, pn 0741601-1, had failed where it was clamped to the fuselage. A metallurgical exam of the fracture…
- [NTSB CHI86LA222](https://openairdocs.org/ntsb/CHI86LA222.md): Cessna 310G · Ypsilanti, MI · Accident · No injuries · Limited investigation · Final report · Sep 14, 1986 · N8996Z · Substantial damage
  > The left main gear collapsed and the acft veered off the left side of the runway during the landing roll at an groundspeed of aprx 30 KTS. Inspection of the landing gear disclosed a bent push pull tube.
- [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 CHI84LA033](https://openairdocs.org/ntsb/CHI84LA033.md): Aeronca 7AC · Burnips, MI · Accident · No injuries · Limited investigation · Final report · Oct 22, 1983 · N2172E · Substantial damage
  > Reportedly, the plt had consumed 4 beers after 2200 EDT, while at the bostwick lake inn, then consumed another beer after he left the inn. At aprx 0330 EDT, he & a passenger took off from an unlit arpt. The plt stated that shortly after takeoff, he became…

## 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 c."eventStateOrRegion" = 'MI' AND c."eventCountry" = 'USA'
  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&state=MI

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