# NTSB investigations, WA: Electrical system malf/failure

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 WPR16LA164](https://openairdocs.org/ntsb/WPR16LA164.md): Zenith CH601 · Ocean Shores, WA · Accident · Minor injuries · Limited investigation · Final report · Aug 12, 2016 · N619LD · Substantial damage
  > A reduction in electrical power, which disabled both fuel pumps and resulted in fuel starvation and a loss of engine power.
- [NTSB WPR16LA127](https://openairdocs.org/ntsb/WPR16LA127.md): Piper PA46 · Seattle, WA · Accident · No injuries · Class 3 · Limited · Final report · Jun 2, 2016 · N301DM · Substantial damage
  > The pilot’s failure to use the emergency procedures checklist for generator failures or for gear extension following a loss of electrical power due to the separated flag terminal of a diode in overstress, which resulted in a gear-up landing.
- [NTSB WPR11LA378](https://openairdocs.org/ntsb/WPR11LA378.md): Cessna 210L · Seattle, WA · Accident · No injuries · Limited investigation · Final report · Aug 13, 2011 · N732FY · Substantial damage
  > A loss of electrical power while on final approach due to a depleted battery, which resulted in an intentional gear-up emergency landing.
- [NTSB WPR10LA432](https://openairdocs.org/ntsb/WPR10LA432.md): Stinson JR. S · Lake Stevens, WA · Accident · Minor injuries · Limited investigation · Final report · Aug 28, 2010 · N12164 · Substantial damage
  > A total loss of engine power during cruise flight, which resulted from a magneto switch failure.
- [NTSB WPR10LA091](https://openairdocs.org/ntsb/WPR10LA091.md): Beech A23-24 · Camas, WA · Accident · No injuries · Limited investigation · Final report · Dec 22, 2009 · N973WP · Substantial damage
  > The left magneto's broken p-lead, which led to the engine inadvertently starting while the pilot was turning the propeller by hand.
- [NTSB WPR09LA423](https://openairdocs.org/ntsb/WPR09LA423.md): Cessna TU206G · Ballard, WA · Accident · Minor injuries · Limited investigation · Final report · Aug 28, 2009 · N682RC · Substantial damage
  > The pilot's precautionary water landing with partially extended landing gear. Contributing to the accident was the unidentified anomaly with the airplane's electrical system, which rendered the gear position indicator system inoperative.

## 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" = 'WA' AND c."eventCountry" = 'USA'
  AND c."mKey" IN (SELECT s.case_mkey FROM 'https://openairdocs.org/data/latest/ntsb_events.parquet' s WHERE s."tier2Number" = '332' AND s.case_mkey IN (SELECT case_mkey FROM 'https://openairdocs.org/data/latest/ntsb_events.parquet' WHERE "isDefiningEvent"))
ORDER BY c."eventDate" DESC, c."ntsbNumber" DESC
```

This list as a web page: https://openairdocs.org/ntsb-events/332/sequence?state=WA

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