# Electrical pwr sys wiring

- 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) › Electrical pwr sys wiring
- NTSB code: 01022497
- Cases: 44
- In the probable cause: 42
- Fatal cases: 6
- All cases: https://openairdocs.org/ntsb-findings/01022497/cases.md
- Cases with it in the probable cause: https://openairdocs.org/ntsb-findings/01022497/cases.md?cause=1
- Page: https://openairdocs.org/ntsb-findings/01022497

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

- 2008: 2 / 2
- 2009: 3 / 3
- 2010: 2 / 2
- 2011: 1 / 1
- 2012: 1 / 1
- 2013: 2 / 2
- 2014: 2 / 2
- 2015: 2 / 2
- 2016: 6 / 7
- 2017: 4 / 4
- 2018: 1 / 1
- 2019: 3 / 3
- 2020: 1 / 1
- 2021: 3 / 3
- 2022: 2 / 2
- 2023: 4 / 5
- 2024: 2 / 2
- 2025: 1 / 1

## Defining events in these cases

- [Electrical system malf/failure](https://openairdocs.org/ntsb-events/332): 12 cases
- [Fire/smoke (non-impact)](https://openairdocs.org/ntsb-events/150): 10 cases
- [Loss of engine power (total)](https://openairdocs.org/ntsb-events/341): 9 cases
- [Hard landing](https://openairdocs.org/ntsb-events/092): 3 cases
- [Sys/Comp malf/fail (non-power)](https://openairdocs.org/ntsb-events/330): 2 cases
- [Aerodynamic stall/spin](https://openairdocs.org/ntsb-events/241): 2 cases
- [Collision during takeoff/land](https://openairdocs.org/ntsb-events/490): 1 cases
- [Landing area overshoot](https://openairdocs.org/ntsb-events/380): 1 cases
- [Loss of engine power (partial)](https://openairdocs.org/ntsb-events/342): 1 cases
- [Powerplant sys/comp malf/fail](https://openairdocs.org/ntsb-events/340): 1 cases

## Aircraft models (registry)

- [Yakovlev/Yancey Robert F YAK-11](https://openairdocs.org/model/yakovlev-yancey-robert-f-yak-11): 1 cases
- [Piper PA-31T](https://openairdocs.org/model/piper-pa-31t): 1 cases
- [Piper PA-28-180](https://openairdocs.org/model/piper-pa-28-180): 1 cases
- [Piper PA-28-181](https://openairdocs.org/model/piper-pa-28-181): 1 cases
- [Piper PA-28-161](https://openairdocs.org/model/piper-pa-28-161): 1 cases
- [Grumman American Avn. AA-1C](https://openairdocs.org/model/grumman-american-avn-aa-1c): 1 cases
- [Diamond Aircraft Ind DA 62](https://openairdocs.org/model/diamond-aircraft-ind-da-62): 1 cases
- [Dassault-Breguet MYSTERE FALCON 900](https://openairdocs.org/model/dassault-breguet-mystere-falcon-900): 1 cases
- [Cessna 207A](https://openairdocs.org/model/cessna-207a): 1 cases
- [Cessna P210N](https://openairdocs.org/model/cessna-p210n): 1 cases

## Other findings in the same cases

- [Installation](https://openairdocs.org/ntsb-findings/02062035) (Personnel issues): 8 cases
- [Aircraft control](https://openairdocs.org/ntsb-findings/02063040) (Personnel issues): 5 cases
- [Fuel pumps](https://openairdocs.org/ntsb-findings/01022822) (Aircraft): 5 cases
- [Incorrect action performance](https://openairdocs.org/ntsb-findings/02041015) (Personnel issues): 4 cases
- [Airspeed](https://openairdocs.org/ntsb-findings/01062010) (Aircraft): 4 cases
- [Engine (reciprocating), general](https://openairdocs.org/ntsb-findings/01058500) (Aircraft): 4 cases
- [Not determined, general](https://openairdocs.org/ntsb-findings/05000000) (Not determined): 3 cases
- [Modification/alteration](https://openairdocs.org/ntsb-findings/02062030) (Personnel issues): 3 cases
- [Scheduled/routine maintenance](https://openairdocs.org/ntsb-findings/02062010) (Personnel issues): 3 cases
- [Decision making/judgment](https://openairdocs.org/ntsb-findings/02041520) (Personnel issues): 3 cases

## Newest cases

- [NTSB CEN25LA401](https://openairdocs.org/ntsb/CEN25LA401), Sep 7, 2025: CubCrafters CCK-2000 (N40DT), Thompsonville, MI, substantial damage. Probable cause: A total loss of engine power due to a lack of ignition resulting from a fractured alternator ring terminal and the builder’s incorrect installation of the wire connecting to the alternator.…
- [NTSB CEN24LA366](https://openairdocs.org/ntsb/CEN24LA366), Sep 20, 2024: Cessna 172M (N73154), Ackerman, MS, substantial damage. Probable cause: The excessive airplane speed during a no-flap landing, and the pilot’s failure to attain a proper touchdown point, which resulted in a runway overrun. Contributing to the accident was the…
- [NTSB WPR24LA081](https://openairdocs.org/ntsb/WPR24LA081), Jan 30, 2024: Christopher Randall Raptor Junior 540 (N906CR), Camarillo, CA, substantial damage. Probable cause: A total loss of engine power due to the loss of power to the electronic fuel injection and ignition system, which was the result of a loose connection between a common ground feed-through stud and…
- [NTSB CEN23LA402](https://openairdocs.org/ntsb/CEN23LA402), Sep 4, 2023: Vans RV14 (N14NP), Orchard, TX, substantial damage. Probable cause: The failure of an alternator belt and the builder/previous owner’s incorrect electrical wiring of the airplane’s other alternator, which resulted in a total loss of electrical and engine power.
- [NTSB CEN23LA390](https://openairdocs.org/ntsb/CEN23LA390), Aug 30, 2023: Zlin Aviation S R O Savage Norden (N7373), Cabot, AR, substantial damage. Probable cause: The airplane manufacturer’s routing of the fuel pump wiring next to the engine’s turbocharger and exhaust, which thermally damaged the wiring and resulted in a malfunction of the fuel delivery system…
- [NTSB ERA23LA320](https://openairdocs.org/ntsb/ERA23LA320), Aug 1, 2023: Mesnard Velocity Twin (N106VT), Sandersville, GA, substantial damage, 1 fatal. Probable cause: A total loss of power in the right engine due to the right ECU injector wires being severed by the main landing gear actuator piston teeter bar as a result of a lack of clearance and protection of…
- [NTSB ERA23LA347](https://openairdocs.org/ntsb/ERA23LA347), Jul 27, 2023: Piper PA28 (N15417), Knoxville, TN, substantial damage. Probable cause: An in-flight fire that resulted from an inadequate 100-hr inspection, which failed to detect and correct improper electrical cable routing in the engine compartment.
- [NTSB ERA23FA137](https://openairdocs.org/ntsb/ERA23FA137), Mar 5, 2023: Piper PA-28-161 (N8149R), Lindenhurst, NY, destroyed, 1 fatal. Probable cause: An in-flight fire due to a compromised oil pressure line fitting, which resulted in a collision with terrain during a subsequent emergency landing.
- [NTSB ERA23LA065](https://openairdocs.org/ntsb/ERA23LA065), Nov 18, 2022: Piper PA-28-181 (N8129M), Manassas, VA, substantial damage. Probable cause: An engine fire caused by chafing and subsequent electrical arcing of the alternator wire near a fuel source.
- [NTSB CEN23LA014](https://openairdocs.org/ntsb/CEN23LA014), Oct 15, 2022: Diamond Aircraft Ind DA 62 (N84LT), Dallas, TX, substantial damage. Probable cause: A total loss of airplane electrical power for undetermined reasons, which resulted in a complete loss of engine power to both engines. Contributing was the worn main battery and the incorrectly wired…

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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