# Electrical system malf/failure

- Type: NTSB defining event
- NTSB code: 332
- CICTT category: System/Component Failure (Non-Powerplant)
- Defining event in: 118 cases
- In the sequence of: 182 cases
- Fatal cases: 3
- All cases: https://openairdocs.org/ntsb-events/332/cases.md
- Cases with it anywhere in the sequence: https://openairdocs.org/ntsb-events/332/sequence.md
- Page: https://openairdocs.org/ntsb-events/332

## Cases per year (defining / in the sequence)

- 2008: 9 / 10
- 2009: 3 / 7
- 2010: 3 / 7
- 2011: 5 / 11
- 2012: 6 / 9
- 2013: 2 / 6
- 2014: 1 / 8
- 2015: 5 / 5
- 2016: 9 / 14
- 2017: 5 / 9
- 2018: 6 / 12
- 2019: 13 / 13
- 2020: 7 / 9
- 2021: 8 / 12
- 2022: 9 / 11
- 2023: 8 / 10
- 2024: 9 / 12
- 2025: 6 / 12
- 2026: 4 / 5

## Phase of flight

- Enroute-cruise: 30 cases
- Enroute: 24 cases
- Initial climb: 24 cases
- Approach: 8 cases
- Enroute-climb to cruise: 7 cases
- Maneuvering: 5 cases
- Enroute-descent: 4 cases
- Unknown: 2 cases
- Approach-IFR final approach: 2 cases
- Approach-IFR initial approach: 2 cases

## In the probable cause of these cases

- [Electrical power system, general](https://openairdocs.org/ntsb-findings/01022400) (Aircraft): 15 cases
- [Electrical pwr sys wiring](https://openairdocs.org/ntsb-findings/01022497) (Aircraft): 12 cases
- [Battery/charger](https://openairdocs.org/ntsb-findings/01022432) (Aircraft): 12 cases
- [Not determined, general](https://openairdocs.org/ntsb-findings/05000000) (Not determined): 9 cases
- [Decision making/judgment](https://openairdocs.org/ntsb-findings/02041520) (Personnel issues): 9 cases
- [Gear extension and retract sys](https://openairdocs.org/ntsb-findings/01023230) (Aircraft): 8 cases
- [DC power distribution system](https://openairdocs.org/ntsb-findings/01022460) (Aircraft): 7 cases
- [Alternator-generator drive sys](https://openairdocs.org/ntsb-findings/01022410) (Aircraft): 7 cases
- [Aircraft control](https://openairdocs.org/ntsb-findings/02063040) (Personnel issues): 6 cases
- [Installation](https://openairdocs.org/ntsb-findings/02062035) (Personnel issues): 6 cases

## Aircraft models (registry)

- [Cessna P210N](https://openairdocs.org/model/cessna-p210n): 6 cases
- [Raytheon B200](https://openairdocs.org/model/raytheon-b200): 3 cases
- [Airbus Industrie A320-232](https://openairdocs.org/model/airbus-industrie-a320-232): 2 cases
- [Cessna T210N](https://openairdocs.org/model/cessna-t210n): 2 cases
- [Cessna 210L](https://openairdocs.org/model/cessna-210l): 2 cases
- [Cessna R182](https://openairdocs.org/model/cessna-r182): 2 cases
- [Yakovlev/Yancey Robert F YAK-11](https://openairdocs.org/model/yakovlev-yancey-robert-f-yak-11): 1 cases
- [Pzl-Swidnik PW-5](https://openairdocs.org/model/pzl-swidnik-pw-5): 1 cases
- [Swearingen SA227-TT](https://openairdocs.org/model/swearingen-sa227-tt): 1 cases
- [Swearingen SA-226T](https://openairdocs.org/model/swearingen-sa-226t): 1 cases

## Newest cases

- [NTSB DCA26WA192](https://openairdocs.org/ntsb/DCA26WA192), Apr 26, 2026: Boeing 777 (G-YYMD), London, United Kingdom, incident, no damage
- [NTSB ERA26LA191](https://openairdocs.org/ntsb/ERA26LA191), Apr 24, 2026: Beech F33A (N85WM), Sanford, NC, substantial damage. Probable cause: A loss of electrical power as a result of broken stator leads within the alternator, which resulted in the pilot’s inability to extend the airplane’s landing gear.
- [NTSB ENG26LA019](https://openairdocs.org/ntsb/ENG26LA019), Mar 5, 2026: Airbus A321 (N556UW), Baltimore, MD, incident, investigation ongoing
- [NTSB ENG26LA018](https://openairdocs.org/ntsb/ENG26LA018), Feb 11, 2026: Airbus A319 (N9010R), Charlotte, NC, incident, investigation ongoing
- [NTSB DCA26WA072](https://openairdocs.org/ntsb/DCA26WA072), Dec 6, 2025: Boeing 727 (HK5216), Bogotá, Colombia, incident, no damage
- [NTSB CEN25LA309](https://openairdocs.org/ntsb/CEN25LA309), Aug 7, 2025: Vans RV4 (N595BS), Elgin, IL, substantial damage, investigation ongoing
- [NTSB ERA25LA199](https://openairdocs.org/ntsb/ERA25LA199), May 8, 2025: Cessna 182A (N174A), Ocala, FL, substantial damage. Probable cause: The pilot’s decision to depart on the flight with known electrical issues and his subsequent loss of situational awareness (geographic position), which resulted in his eventual decision to perform an…
- [NTSB WPR25LA111](https://openairdocs.org/ntsb/WPR25LA111), Mar 11, 2025: Cessna P210N (N711HE), Roswell, NM, substantial damage, investigation ongoing
- [NTSB CEN25LA079](https://openairdocs.org/ntsb/CEN25LA079), Jan 15, 2025: Piper PA-24-250 (N8051P), Tyler, TX, substantial damage. Probable cause: 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 ENG25WA036](https://openairdocs.org/ntsb/ENG25WA036), Jan 10, 2025: ATR ATR72 (G-ISLM), La Villiaze, Guernsey, United Kingdom, incident, no damage

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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