# DC indicating system

- Type: NTSB finding subsection
- Path: [Aircraft](https://openairdocs.org/ntsb-findings/01) › [Aircraft systems](https://openairdocs.org/ntsb-findings/0102) › [Electrical power system](https://openairdocs.org/ntsb-findings/010224) › DC indicating system
- NTSB code: 01022437
- Cases: 2
- In the probable cause: 0
- Fatal cases: 0
- All cases: https://openairdocs.org/ntsb-findings/01022437/cases.md
- Cases with it in the probable cause: https://openairdocs.org/ntsb-findings/01022437/cases.md?cause=1
- Page: https://openairdocs.org/ntsb-findings/01022437

## Cases per year (in the probable cause / all)

- 2018: 0 / 1
- 2024: 0 / 1

## Defining events in these cases

- [Loss of engine power (total)](https://openairdocs.org/ntsb-events/341): 1 cases
- [Electrical system malf/failure](https://openairdocs.org/ntsb-events/332): 1 cases

## Aircraft models (registry)

- [Raytheon B200](https://openairdocs.org/model/raytheon-b200): 1 cases
- [Knott Vernon W CH 750](https://openairdocs.org/model/knott-vernon-w-ch-750): 1 cases

## Other findings in the same cases

- [Use of checklist](https://openairdocs.org/ntsb-findings/02063030) (Personnel issues): 1 cases
- [Forgotten action/omission](https://openairdocs.org/ntsb-findings/02041035) (Personnel issues): 1 cases
- [Incorrect action sequence](https://openairdocs.org/ntsb-findings/02041020) (Personnel issues): 1 cases
- [Gear extension and retract sys](https://openairdocs.org/ntsb-findings/01023230) (Aircraft): 1 cases
- [DC generation system](https://openairdocs.org/ntsb-findings/01022430) (Aircraft): 1 cases
- [AC generator-alternator](https://openairdocs.org/ntsb-findings/01022421) (Aircraft): 1 cases

## Newest cases

- [NTSB WPR24LA109](https://openairdocs.org/ntsb/WPR24LA109), Mar 12, 2024: Raytheon B200 (N299AV), Billings, MT, substantial damage. Probable cause: 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…
- [NTSB ERA18TA263](https://openairdocs.org/ntsb/ERA18TA263), Sep 23, 2018: Zenith CH 750 (N752VK), DeLeon Springs, FL, substantial damage. Probable cause: The pilot's operation of the airplane with the alternator switch in the off position, which allowed the selected battery to discharge and resulted in an ignition system failure and a total loss of…

NTSB has coded findings and defining events since 2008; earlier cases used its older occurrence and cause codes and aren't counted.

Findings: https://openairdocs.org/ntsb-findings.md. Defining events: https://openairdocs.org/ntsb-events.md. Phases of flight: https://openairdocs.org/ntsb-phases.md. Every investigation, filtered by finding, event, phase, state, year or model: https://openairdocs.org/ntsb.md (for example ?state=MI&fatal=1).

NTSB's definitions: Accident and incident, 49 CFR 830.2 (https://www.ecfr.gov/current/title-49/subtitle-B/chapter-VIII/part-830/subpart-A/section-830.2), CICTT occurrence categories (PDF) (https://www.ntsb.gov/safety/data/Documents/datafiles/OccurrenceCategoryDefinitions.pdf), CICTT phases of flight (PDF) (https://www.ntsb.gov/safety/data/Documents/datafiles/PhaseofFlightDefinitions.pdf), and NTSB coding manual, before 2008 (PDF) (https://www.ntsb.gov/GILS/Documents/codman.pdf). NTSB publishes no definitions for its findings, only their names.

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