# NTSB investigations: Lycoming IGSO-540-B1A: Airframe/component/system failure/malfunction

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 SEA98LA073](https://openairdocs.org/ntsb/SEA98LA073.md): Aero Commander 500-A · Billings, MT · Accident · No injuries · Limited investigation · Final report · May 9, 1998 · N9382R · Substantial damage
  > Failure of the main landing gear strut outer-body to inner-body needle bearing from the lack of lubrication and the development of corrosion. An inadequate manufacturer's inspection program was a factor.
- [NTSB CHI95LA287](https://openairdocs.org/ntsb/CHI95LA287.md): Beech 65-B80 · Anderson, IN · Accident · No injuries · Limited investigation · Final report · Aug 20, 1995 · N8347N · Substantial damage
  > seizure of the landing gear wheel bearing and separation of the landing gear outer wheel-half and tire from the aircraft after which directional control of the aircraft by the pilot was not possible.
- [NTSB MIA94LA149](https://openairdocs.org/ntsb/MIA94LA149.md): Beech 65 · Pensacola, FL · Accident · Serious injuries · Limited investigation · Final report · May 23, 1994 · N6166Y · Minor damage
  > Improper installation of nuts on the nosewheel (split rim) through-bolts by unknown personnel, which resulted in a subsequent failure (separation of the wheel halves).
- [NTSB MKC90LA039](https://openairdocs.org/ntsb/MKC90LA039.md): Beech 80 · Cape Girardeau, MO · Accident · No injuries · Limited investigation · Final report · Dec 13, 1989 · N525GT · Substantial damage
  > An inoperative landing gear extension system due to failure of an electric motor and a misplaced emergency crank handle.
- [NTSB CHI82IA102](https://openairdocs.org/ntsb/CHI82IA102.md): Beech 65-88 · Kalamazo, MI · Incident · No injuries · Incident investigation · Final report · Mar 26, 1982 · N20HR · Minor damage
  > Prior to landing the pilot could not extend the right main landing gear. He attempted to extend the gear by recycling the system and by using the manual extension, but to no avail. Subsequently, the aircraft was landed on a paved runway with the 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 c."mKey" IN (SELECT x.case_mkey FROM 'https://openairdocs.org/data/latest/ntsb_aircrafts.parquet' x WHERE x.engine_model_code IN ('41535')
    AND EXISTS (SELECT 1 FROM 'https://openairdocs.org/data/latest/ntsb_occurrences.parquet' o WHERE o.case_mkey = x.case_mkey AND o.aircrafts_position = x.position AND o."occurrenceNumber" = 1 AND o."occurrenceCode" = 130))
ORDER BY c."eventDate" DESC, c."ntsbNumber" DESC
```

This list as a web page: https://openairdocs.org/ntsb?engine=41535&occurrence=130

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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.