# Final NTSB investigations: 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.

Page 1 of 3 · 130 cases

## Latest cases

- [NTSB ERA26LA191](https://openairdocs.org/ntsb/ERA26LA191.md): Beech F33A · Sanford, NC · Accident · No injuries · Class 4 · Limited · Final report · Apr 24, 2026 · N85WM · Substantial damage
  > 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 CEN25LA401](https://openairdocs.org/ntsb/CEN25LA401.md): CubCrafters CCK-2000 · Thompsonville, MI · Accident · No injuries · Class 3 · Limited · Final report · Sep 7, 2025 · N40DT · Substantial damage
  > 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. Contributing to the total loss of engine power was the failure of the…
- [NTSB ERA25LA343](https://openairdocs.org/ntsb/ERA25LA343.md): Beech 95-B55 (T42A) · St. Petersburg, FL · Accident · No injuries · Class 4 · Limited · Final report · Aug 20, 2025 · N8313N · Substantial damage
  > The pilot’s failure to extend the landing gear prior to landing. Contributing to the accident was a malfunction of the landing gear’s electrical retraction/extension system, which tripped the circuit breaker.
- [NTSB ERA25LA199](https://openairdocs.org/ntsb/ERA25LA199.md): Cessna 182A · Ocala, FL · Accident · Serious injuries · Class 4 · Limited · Final report · May 8, 2025 · N174A · Substantial damage
  > 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 off-airport landing.
- [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 CEN25LA059](https://openairdocs.org/ntsb/CEN25LA059.md): Cessna 182T · Pearland, TX · Accident · No injuries · Class 3 · Limited · Final report · Dec 11, 2024 · N127SL · 2 aircraft · Substantial damage
  > The AA-5 pilot’s failure to maintain separation from the 182T during approach and landing, which resulted in a ground collision during the landing roll. Contributing to the accident was the failure of the AA-5’s electrical system, which prevented the AA-5…
- [NTSB CEN24LA366](https://openairdocs.org/ntsb/CEN24LA366.md): Cessna 172M · Ackerman, MS · Accident · No injuries · Class 3 · Limited · Final report · Sep 20, 2024 · N73154 · Substantial damage
  > 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 interference of the instrument panel wiring with the flight control…
- [NTSB WPR24LA265](https://openairdocs.org/ntsb/WPR24LA265.md): Bell 407 · Raft River, ID · Accident · Minor injuries · Class 3 · Limited · Final report · Aug 3, 2024 · N20BH · Substantial damage
  > The pilot’s misdiagnosis of an erroneous engine instrument indication and his subsequent decision to enter an autorotation, which resulted in a hard landing due to degraded visual cues and low ambient light conditions. Contributing to the accident were the…
- [NTSB ERA24LA337](https://openairdocs.org/ntsb/ERA24LA337.md): Piper PA-32R-301T · North Myrtle Beach, SC · Accident · No injuries · Class 4 · Limited · Final report · Jul 30, 2024 · N5343C · Substantial damage
  > The pilot’s failure to use the emergency landing gear extension system, resulting in a gear-up landing. Contributing to the accident was an alternator belt failure.
- [NTSB WPR24LA230](https://openairdocs.org/ntsb/WPR24LA230.md): Cessna P210N · Reno, NV · Accident · No injuries · Class 3 · Limited · Final report · Jun 13, 2024 · N36RW · Substantial damage
  > A loss of electrical power for undetermined reasons, which resulted in a partial extension of the landing gear and subsequent landing gear collapse during landing. Contributing to the accident was fuel starvation that resulted in a total loss of engine power.
- [NTSB ERA24LA228](https://openairdocs.org/ntsb/ERA24LA228.md): Schleicher ASH 31 MI · Winter Haven, FL · Accident · Serious injuries · Class 3 · Limited · Final report · May 25, 2024 · N20SW · Substantial damage
  > The pilot’s failure to ensure that a suitable landing area was available in case the restart of the motor glider’s engine was unsuccessful. Contributing, was insufficient battery charge to extend the motor glider’s pylon assembly.
- [NTSB WPR24LA157](https://openairdocs.org/ntsb/WPR24LA157.md): Cessna P210 · Daggett, CA · Accident · No injuries · Class 3 · Limited · Final report · May 16, 2024 · N4769K · Substantial damage
  > The pilot’s failure to detect the tripped alternator circuit breaker in flight, which resulted in a drained battery that prevented the landing gear from fully extending to the down-and-locked position. Contributing to the accident was the improperly installed…
- [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 CEN23LA402](https://openairdocs.org/ntsb/CEN23LA402.md): Vans RV14 · Orchard, TX · Accident · No injuries · Class 3 · Limited · Final report · Sep 4, 2023 · N14NP · Substantial damage
  > 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 WPR23LA321](https://openairdocs.org/ntsb/WPR23LA321.md): Cessna T210M · Napa, CA · Accident · No injuries · Class 3 · Limited · Final report · Aug 21, 2023 · N6535B · Substantial damage
  > Insufficient hydraulic pressure to the landing gear system following the completion of the emergency gear extension checklist, which resulted in the main landing gear collapsing during landing. Contributing to the accident was a loss of electrical power for…
- [NTSB ENG23LA033](https://openairdocs.org/ntsb/ENG23LA033.md): Airbus A320 · Jacksonville, FL · Incident · No injuries · Class 3 · Limited · Final report · Aug 3, 2023 · N649JB · No damage
  > The loss of both Integrated Drive Generators (IDG) due to worn fixed cylinder block bores, which caused the IDGs to be tripped offline and caused the airplane to enter an emergency electrical configuration.
- [NTSB CEN23LA135](https://openairdocs.org/ntsb/CEN23LA135.md): Bell Helicopter Textron APT70 · Mineral Wells, TX · Accident · No injuries · Class 3 · Limited · Final report · Mar 14, 2023 · N314AL · Substantial damage
  > The flight crew’s loss of control of the unmanned aircraft due to software limitations. Contributing to the accident was the overly restrictive low voltage threshold limits.
- [NTSB ERA23LA064](https://openairdocs.org/ntsb/ERA23LA064.md): Beech 95-B55 (T42A) · Athens, GA · Accident · No injuries · Class 3 · Limited · Final report · Nov 3, 2022 · N101DC · Substantial damage
  > The operator’s and the pilot’s continued operation of the airplane with a known electrical problem, resulting in a loss of electrical power and a gear-up landing.
- [NTSB ERA23FA023](https://openairdocs.org/ntsb/ERA23FA023.md): Peryera Adventura II · Miramar, FL · Accident · 2 fatal · Class 3 · Field · Final report · Oct 17, 2022 · N32856 · Substantial damage
  > The pilot’s failure to remove the ECU select switch per the manufacturer’s service bulletin, which resulted in a loss of engine power.
- [NTSB CEN23LA014](https://openairdocs.org/ntsb/CEN23LA014.md): Diamond Aircraft Ind DA 62 · Dallas, TX · Accident · No injuries · Class 3 · Limited · Final report · Oct 15, 2022 · N84LT · Substantial damage
  > 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 ECU backup batteries.
- [NTSB CEN22LA430](https://openairdocs.org/ntsb/CEN22LA430.md): Agusta AW139 · Houma, LA · Accident · No injuries · Class 3 · Limited · Final report · Sep 24, 2022 · N811TA · Substantial damage
  > The inflight loss of collective control of the helicopter due to thermal damage of a collective control torque tube that abraded with misrouted electrical wiring, which resulted in an electrical short and inflight fire. Contributing to the accident were the…
- [NTSB ERA22LA155](https://openairdocs.org/ntsb/ERA22LA155.md): Aircraft Designs Stallion · Ridgeland, SC · Accident · No injuries · Class 3 · Limited · Final report · Mar 13, 2022 · N262KT · Substantial damage
  > A loss of sufficient electrical power to the engine’s electronic fuel injection/ignition system for undetermined reasons, which resulted in a total loss of engine power.
- [NTSB CEN22LA072](https://openairdocs.org/ntsb/CEN22LA072.md): American Legend AL18 · Abbeville, LA · Accident · No injuries · Class 4 · Limited · Final report · Dec 12, 2021 · N1477D · Destroyed
  > An electrical fire for reasons that could not be determined.
- [NTSB WPR22LA063](https://openairdocs.org/ntsb/WPR22LA063.md): Beech 200 · Eugene, OR · Accident · No injuries · Class 4 · Limited · Final report · Nov 28, 2021 · N71VT · Substantial damage
  > The pilot’s improper checklist use, which resulted in an electrical malfunction and subsequent gear up landing.
- [NTSB WPR21LA348](https://openairdocs.org/ntsb/WPR21LA348.md): Cessna 172N · Grass Valley, CA · Accident · No injuries · Class 4 · Limited · Final report · Sep 19, 2021 · N4977G · Substantial damage
  > The pilot’s failure to attain a proper touchdown point on the runway while landing in gusting wind conditions, which resulted in a runway overrun. Contributing to the accident was the pilot’s distraction due to an electrical issue.
- [NTSB WPR21LA294](https://openairdocs.org/ntsb/WPR21LA294.md): Kuykendall Charles Lancair IV · Indian Springs, NV · Accident · No injuries · Class 3 · Limited · Final report · Jul 28, 2021 · N26PD · Destroyed
  > An in-flight fire due to an undetermined electrical malfunction.
- [NTSB CEN21LA373](https://openairdocs.org/ntsb/CEN21LA373.md): Mooney M20F · New Albany, MS · Accident · No injuries · Class 4 · Limited · Final report · Jul 22, 2021 · N6474Q · Substantial damage
  > The pilot’s delayed decision to abort the landing that resulted in a collision with a fence post. Contributing to the accident was the failure of the alternator drive belt during cruise flight for unknown reasons and the subsequent inoperative electrical…
- [NTSB WPR21LA269](https://openairdocs.org/ntsb/WPR21LA269.md): Cessna 172R · Petaluma, CA · Accident · No injuries · Class 4 · Limited · Final report · Jul 10, 2021 · N996RA · Substantial damage
  > The pilot’s improper landing flare which resulted in a hard landing following a partial loss of electrical power. Contributing to the accident was the pilot’s distraction and hampered visual function.
- [NTSB ERA21LA159](https://openairdocs.org/ntsb/ERA21LA159.md): Cessna 210 · Marianna, FL · Accident · No injuries · Class 4 · Limited · Final report · Mar 18, 2021 · N7736K · Substantial damage
  > The failure of the alternator control unit housing plug connection, which resulted in insufficient battery power to fully extend the landing gear. Contributing to the accident was the pilot’s decision to not use the emergency gear extension handle to secure…
- [NTSB CEN21LA065](https://openairdocs.org/ntsb/CEN21LA065.md): Piper PA32R · Canon City, CO · Accident · No injuries · Class 3 · Limited · Final report · Nov 20, 2020 · N4187H · Substantial damage
  > The failure of the alternator drive belt, which resulted in insufficient electrical power to extend the landing gear and a subsequent gear-up landing..
- [NTSB CEN20LA412](https://openairdocs.org/ntsb/CEN20LA412.md): Zenith CH 750 · Montrose, MO · Accident · No injuries · Class 3 · Limited · Final report · Sep 20, 2020 · N210WP · Substantial damage
  > A total loss of engine power due to an electrical overload in the engine control unit wiring system; the electrical overload occurred as a result of improper installation by the airplane builder.
- [NTSB CEN20LA262](https://openairdocs.org/ntsb/CEN20LA262.md): Beech F35 · Ravenna, TX · Accident · Minor injuries · Class 3 · Limited · Final report · Jul 5, 2020 · N4219B · Substantial damage
  > Electrical and engine problems for reasons that could not be determined based on available evidence.
- [NTSB ERA20CA203](https://openairdocs.org/ntsb/ERA20CA203.md): Beech 36 · Batavia, NY · Accident · No injuries · Class 4 · Data collection · Final report · Jun 1, 2020 · N15DN · Substantial damage
  > The pilot's failure to extend the landing gear during a precautionary landing after an electrical failure.
- [NTSB CEN20FA093](https://openairdocs.org/ntsb/CEN20FA093.md): Beech 200 · Coleman, TX · Accident · 3 fatal · Class 3 · Field · Final report · Feb 20, 2020 · N860J · Destroyed
  > The pilot’s loss of airplane control due to spatial disorientation. Contributing to the accident was the pilot’s distraction with a “popped” circuit breaker and communications with air traffic control.
- [NTSB ENG20LA016](https://openairdocs.org/ntsb/ENG20LA016.md): Airbus A319 · Sacramento, CA · Incident · No injuries · Class 3 · Limited · Final report · Feb 15, 2020 · N521NK · No damage
  > A worn component within each engine integrated drive generator (IDG) resulted in the loss of electrical power supplied to several flight deck displays and systems while on approach to landing. The component, a fixed cylinder block, had significant wearing of…
- [NTSB WPR19LA261](https://openairdocs.org/ntsb/WPR19LA261.md): Havoc Air Racing Super GT 111 · Reno, NV · Accident · Minor injuries · Class 3 · Limited · Final report · Sep 9, 2019 · N400MC · Substantial damage
  > The failure of the landing gear to extend for reasons that could not be determined.
- [NTSB ERA19LA253](https://openairdocs.org/ntsb/ERA19LA253.md): Velocity XL-5 · St. Cloud, FL · Accident · Serious injuries · Class 3 · Limited · Final report · Aug 21, 2019 · N735D · Substantial damage
  > The pilot’s failure to properly secure the airplane electrical system’s positive/negative leads to the 24v battery, which resulted in a total loss of electrical and engine power in flight.
- [NTSB WPR19LA201](https://openairdocs.org/ntsb/WPR19LA201.md): Cessna R182 · King City, CA · Accident · No injuries · Class 3 · Limited · Final report · Jul 21, 2019 · N3268C · Substantial damage
  > A landing gear collapse following an undetermined loss of electrical power, which prevented the landing gear from fully extending.
- [NTSB ANC19LA036](https://openairdocs.org/ntsb/ANC19LA036.md): Stoddard Hamilton Glasair II · Chattanooga, TN · Accident · Serious injuries · Class 3 · Limited · Final report · Jul 17, 2019 · C-GAFT · Substantial damage
  > The pilot's failure to switch to the secondary electrical system after the primary electrical system failed for unknown reasons.
- [NTSB CEN19LA226](https://openairdocs.org/ntsb/CEN19LA226.md): Cashen Super Acro Sport · Detroit Lakes, MN · Accident · Minor injuries · Class 3 · Limited · Final report · Jul 16, 2019 · N61SC · Substantial damage
  > An open circuit in the engine's electrical switch box, which resulted in a partial loss of engine power and subsequent forced landing.
- [NTSB CEN19LA147](https://openairdocs.org/ntsb/CEN19LA147.md): Cessna P210 · Yankeetown, FL · Accident · Minor injuries · Class 3 · Limited · Final report · May 17, 2019 · N4861P · Substantial damage
  > A loss of engine power for reasons that could not be determined based on the available evidence.
- [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 CEN19FA119](https://openairdocs.org/ntsb/CEN19FA119.md): Rockwell International NA-265-65 · New Albany, MS · Accident · 3 fatal · Class 2 · Field · Final report · Apr 13, 2019 · N265DS · Destroyed
  > An unidentified electrical system malfunction that led to the pilots losing awareness of the airplane's performance in instrument meteorological conditions and resulted in a loss of control of the airplane.
- [NTSB ERA19LA022](https://openairdocs.org/ntsb/ERA19LA022.md): Piper PA22 · Brownstown, IN · Accident · No injuries · Limited investigation · Final report · Oct 20, 2018 · N5581Z · Destroyed
  > The total loss of engine power for reasons that could not be determined because postaccident examination of the engine revealed no mechanical malfunctions or failures that would have precluded normal operation. Contributing to the outcome was the student…
- [NTSB GAA19CA016](https://openairdocs.org/ntsb/GAA19CA016.md): Piper PA24 · Winder, GA · Accident · No injuries · Data collection · Final report · Oct 4, 2018 · N8220P · Substantial damage
  > The pilot’s failure to maintain an adequate approach path at night after an electrical failure, which resulted in the airplane striking runway lights.
- [NTSB CEN18FA384](https://openairdocs.org/ntsb/CEN18FA384.md): Cessna 150 · Festus, MO · Accident · 2 fatal · Field investigation · Final report · Sep 21, 2018 · N7152S · Substantial damage
  > A total loss of engine power due to fuel exhaustion and the pilot's subsequent exceedance of the airplane's critical angle of attack, which resulted in an aerodynamic stall. Contributing to the accident was the pilot's decision to initiate and continue the…
- [NTSB GAA18CA545](https://openairdocs.org/ntsb/GAA18CA545.md): Cirrus SR22 · Mason City, IA · Accident · Minor injuries · Data collection · Final report · Sep 8, 2018 · N669HT · Substantial damage
  > The pilot’s improper hand propping procedure, which resulted in a runaway airplane and subsequent impact with a hangar.
- [NTSB CEN18LA348](https://openairdocs.org/ntsb/CEN18LA348.md): Piper PA32R · Falcon, CO · Accident · No injuries · Limited investigation · Final report · Aug 23, 2018 · N2880W · Substantial damage
  > The pilot's decision to depart with an inoperative left magneto, which resulted in degraded climb performance in high-density altitude conditions and a subsequent emergency landing.
- [NTSB CEN18LA345](https://openairdocs.org/ntsb/CEN18LA345.md): Cessna T210 · Tulsa, OK · Accident · No injuries · Limited investigation · Final report · Aug 18, 2018 · N6958N · Substantial damage
  > The pilot's decision to take off with a known electrical problem, which resulted in the loss of electrical power, problem with the landing gear extension system, and subsequent runway excursion.
- [NTSB ERA18LA215](https://openairdocs.org/ntsb/ERA18LA215.md): Cessna R182 · Florence, SC · Accident · No injuries · Limited investigation · Final report · Aug 9, 2018 · N1693R · Substantial damage
  > The pilot's failure to comply with emergency procedures in the pilot's operating handbook, resulting in the collapse of the main landing gear during landing. Contributing to the accident was the pilot's failure to address the low battery voltage before…

Next page: https://openairdocs.org/ntsb-events/332/sequence.md?status=final&page=2

## 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."completionStatus" = 'Completed'
  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?status=final

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