# NTSB investigations: DC generation system

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 CEN25LA079](https://openairdocs.org/ntsb/CEN25LA079.md): Piper PA-24-250 · Tyler, TX · Accident · No injuries · Class 3 · Limited · Final report · Jan 15, 2025 · N8051P · Substantial damage
  > An electrical system surge for a reason that could not be determined that resulted in an overvoltage event, internal damage to electronics equipment, smoke in the cockpit, and a gear up landing.
- [NTSB WPR24LA109](https://openairdocs.org/ntsb/WPR24LA109.md): Raytheon B200 · Billings, MT · Accident · No injuries · Class 3 · Limited · Final report · Mar 12, 2024 · N299AV · Substantial damage
  > The pilot's improper engine start, resulting in the engine starters remaining engaged and the generators not being activated, which led to the discharge of the airplane’s battery and subsequent total electrical failure after takeoff. Contributing to the…
- [NTSB ERA19LA177](https://openairdocs.org/ntsb/ERA19LA177.md): Zenith CH750 · Savannah, TN · Accident · No injuries · Class 3 · Limited · Final report · May 16, 2019 · N750GZ · Substantial damage
  > The total loss of engine power due to a loss of all electrical power. Contributing to the accident was the inaccessible placement of the alternator circuit breaker and the construction of the airplane without a backup electrical source.
- [NTSB CEN15LA132](https://openairdocs.org/ntsb/CEN15LA132.md): Butler Raymond Rotorway Exec 162F · Seadrift, TX · Accident · No injuries · Limited investigation · Final report · Jan 31, 2015 · N162RB · Substantial damage
  > A fault in the No. 1 engine control module, which disabled the ignition system and resulted in the engine losing power; during the subsequent autorotation, the main rotor rpm was further reduced just before touchdown, which resulted in a hard landing.
- [NTSB CEN12LA204](https://openairdocs.org/ntsb/CEN12LA204.md): Piper PA-30 · Roanoke, TX · Accident · No injuries · Limited investigation · Final report · Mar 2, 2012 · N373JT · Substantial damage
  > The pilot’s failure to follow the published emergency procedures to lower the landing gear following a loss of electrical power.
- [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."mKey" IN (SELECT f.case_mkey FROM 'https://openairdocs.org/data/latest/ntsb_findings.parquet' f WHERE starts_with(f."findingCode", '01022430'))
ORDER BY c."eventDate" DESC, c."ntsbNumber" DESC
```

This list as a web page: https://openairdocs.org/ntsb-findings/01022430/cases

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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.