# NTSB investigations: AiResearch TPE331-5&6SER: 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 MIA01FA206](https://openairdocs.org/ntsb/MIA01FA206.md): Mitsubishi MU-2B-35 · Hilton Head, SC · Accident · 1 fatal · Field investigation · Final report · Aug 1, 2001 · N1VY · Destroyed
  > Improper maintenance/installation and and inadequate inspection of the airplane's flap torque tube joints during routine maintenance by company maintenance personnel, which resulted in the right flap torque tube assembly coupler becoming detached and the…
- [NTSB FTW98LA197](https://openairdocs.org/ntsb/FTW98LA197.md): Rockwell 690B · Broomfield, CO · Accident · No injuries · Limited investigation · Final report · Apr 24, 1998 · N690ES · Substantial damage
  > Failure of the flight instructor to maintain adequate supervision, and failure of the pilot receiving instruction to maintain directional control that was lost for reasons undetermined. A factor was the concrete culvert.
- [NTSB MIA85IA203](https://openairdocs.org/ntsb/MIA85IA203.md): Mitsubishi MU-2K · San Juan, PR · Incident · No injuries · Incident investigation · Final report · Jun 24, 1985 · N7DD · Minor damage
  > After departure the nose gear unsafe light remained illuminated peter gear retraction. Attempts to get a safe light on the nose gear in the extended position was unsuccessful and when the aircraft landed it settled onto a partially retracted nose 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 ('01515')
    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=01515&occurrence=130

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