# NTSB investigations: Beech 99, IL

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 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 CHI84IA114](https://openairdocs.org/ntsb/CHI84IA114.md): Beech 99 · Champaign, IL · Incident · No injuries · Incident investigation · Final report · Feb 22, 1984 · N313BA · Minor damage
  > The plt reported that during arrival to the destination arpt, he heard a loud bang & the acft began rolling to the right. He reported that he was unable to control the roll with the ailerons, so he reduced power on the left eng & applied left rudder. The crew…
- [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…
- [NTSB CHI79FA052](https://openairdocs.org/ntsb/CHI79FA052-201203.md): Beech 99 · Chicago, IL · Accident · 2 fatal · Closed · Jun 9, 1979 · N454SA · Destroyed
- [NTSB CHI69A0087](https://openairdocs.org/ntsb/CHI69A0087.md): Beech 99 · Danville, IL · Accident · No injuries · Closed · Apr 24, 1969 · N315VA · Substantial damage

## 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" = 'IL' AND c."eventCountry" = 'USA'
  AND c."mKey" IN (SELECT x.case_mkey FROM 'https://openairdocs.org/data/latest/ntsb_aircrafts.parquet' x WHERE x.aircraft_model_code IN ('1154002'))
ORDER BY c."eventDate" DESC, c."ntsbNumber" DESC
```

This list as a web page: https://openairdocs.org/ntsb?model=1154002&state=IL

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