# NTSB investigations, 2011: Spark plugs/igniters

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 CEN12LA077](https://openairdocs.org/ntsb/CEN12LA077.md): Cessna 152 · Princeton, MN · Accident · No injuries · Limited investigation · Final report · Nov 22, 2011 · N6436P · Substantial damage
  > The inadequate installation of the threaded insert in the No. 2 cylinder spark plug hole by maintenance personnel, which resulted in a loss of engine power during initial climb.
- [NTSB ERA11CA355](https://openairdocs.org/ntsb/ERA11CA355.md): Dotson William P Sngl Seat Hawk Arrow · Carthage, NC · Accident · No injuries · Data collection · Final report · Jun 20, 2011 · N4209F · Substantial damage
  > A partial loss of engine power due to the pilot’s improper installation of the engine’s No. 1 cylinder spark plugs.

## 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") = 2011
  AND c."mKey" IN (SELECT f.case_mkey FROM 'https://openairdocs.org/data/latest/ntsb_findings.parquet' f WHERE starts_with(f."findingCode", '01057421'))
ORDER BY c."eventDate" DESC, c."ntsbNumber" DESC
```

This list as a web page: https://openairdocs.org/ntsb-findings/01057421/cases?year=2011

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