# 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 2 of 4 · 182 cases ## Cases, newest first - [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 GAA21WA205](https://openairdocs.org/ntsb/GAA21WA205.md): Beech 95 55 · Churchdown, United Kingdom · Accident · No injuries · Class 5 · Foreign · Aug 13, 2021 · 2-NOVA · Substantial damage - [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 GAA21WA188](https://openairdocs.org/ntsb/GAA21WA188.md): MD Helicopter MD900 · London, United Kingdom · Incident · No injuries · Class 5 · Foreign · Jul 25, 2021 · G-LNDN · No damage - [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 GAA21WA193](https://openairdocs.org/ntsb/GAA21WA193.md): Sikorsky S92 · South Havra, United Kingdom · Accident · Class 5 · Foreign · Jul 15, 2021 · G-MCGI - [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 GAA21WA079](https://openairdocs.org/ntsb/GAA21WA079.md): Piper PA28 · Roskilde, Denmark · Accident · No injuries · Class 5 · Foreign · Apr 8, 2021 · OY-JEC · Minor damage - [NTSB ENG21WA019](https://openairdocs.org/ntsb/ENG21WA019.md): Boeing 747 · Dubai, United Arab Emirates · Incident · Class 5 · Foreign · Mar 22, 2021 · LX-VCD · Minor damage - [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 DCA27WA007](https://openairdocs.org/ntsb/DCA27WA007.md): Fairchild SA227-AC · Gyor, Hungary · Incident · No injuries · Class 5 · Foreign · Sep 13, 2020 · EC-NIP - [NTSB ENG20WA038](https://openairdocs.org/ntsb/ENG20WA038.md): Piper PA28RT · Basel, Switzerland · Accident · No injuries · Class 5 · Foreign · Jul 23, 2020 · HB-PNP · Destroyed - [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 ENG20WA042](https://openairdocs.org/ntsb/ENG20WA042.md): ATR ATR72 · Ambon, Indonesia · Incident · No injuries · Foreign investigation · Jul 3, 2020 · PK-WHY · No damage > The National Transportation Safety Committee of Indonesia (KNKT) has notified the NTSB of an incident involving an ATR 72-600, which occurred on July 3, 2020. The NTSB has appointed a U.S. Accredited Representative to assist the KNKT investigation under the… - [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 ENG20WA019](https://openairdocs.org/ntsb/ENG20WA019.md): Embraer ERJ190 · New Chitose Airport (RJCC), Japan · Incident · No injuries · Class 5 · Foreign · Dec 23, 2019 · B-3203 · No damage - [NTSB CEN20WA080](https://openairdocs.org/ntsb/CEN20WA080.md): Beech 95-B55 · Malmo, Sweden · Accident · No injuries · Foreign investigation · Nov 17, 2019 · SE-LUX · Substantial damage > The government of Sweden has notified the NTSB of an accident involving a Beech 95-B55 airplane that occurred on November 17, 2019. The NTSB has appointed a U.S. Accredited Representative to assist the government of Sweden's investigation under the provisions… - [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 DCA19WA160](https://openairdocs.org/ntsb/DCA19WA160.md): Boeing 737 · Brussels, Belgium · Incident · No injuries · Foreign investigation · Jun 4, 2019 · G-JMCR · No damage > The Air Accident Investigation Branch (AAIB) of the United Kingdom has notified the NTSB of a serious incident involving a BOEING 737 airplane that occurred on June 04, 2019. The NTSB has appointed a U.S. Accredited Representative to assist the AAIB's… - [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 DCA19WA150](https://openairdocs.org/ntsb/DCA19WA150.md): Airbus A330 · Derby, Australia · Incident · No injuries · Foreign investigation · May 13, 2019 · unknown · No damage > The Australian Transport Safety Bureau (ATSB) has notified the NTSB of a serious incident involving a AIRBUS A330 airplane that occurred on May 13, 2019. The NTSB has appointed a U.S. Accredited Representative to assist the government of Australia's… - [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 GAA19WA342](https://openairdocs.org/ntsb/GAA19WA342.md): Raytheon B200 · Lausanne-Switzerland, Switzerland · Incident · No injuries · Foreign investigation · Feb 2, 2019 · N7779V · No damage > The government of Switzerland has notified the NTSB of an accident involving a RAYTHEON B200 airplane that occurred on February 02, 2019. The NTSB has appointed a U.S. Accredited Representative to assist the government of Switzerland's investigation under the… - [NTSB DCA19WA049](https://openairdocs.org/ntsb/DCA19WA049.md): Boeing 777 · Belo Horizonte, Brazil · Incident · No injuries · Foreign investigation · Dec 20, 2018 · PT-MUG · Minor damage > The CENIPA of Brazil has notified the NTSB of an incident involving a Boeing 777 airplane that occurred on December 20, 2018. The NTSB has appointed a U.S. Accredited Representative to assist CENIPA's investigation under the provisions of ICAO Annex 13 as… - [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 DCA19WA013](https://openairdocs.org/ntsb/DCA19WA013.md): Boeing 737 · East Midlands, United Kingdom · Incident · No injuries · Foreign investigation · Oct 12, 2018 · G-JMCR · No damage > The government of United Kingdom has notified the NTSB of an accident involving a BOEING 737 airplane that occurred on October 12, 2018. The NTSB has appointed a U.S. Accredited Representative to assist the government of United Kingdom's investigation under… - [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… - [NTSB WPR18LA209](https://openairdocs.org/ntsb/WPR18LA209.md): Cessna 402 · Fort Lauderdale, FL · Accident · No injuries · Class 3 · Limited · Final report · Jun 14, 2018 · N322HA · Substantial damage > The failure of the left starter relay, which resulted in a loss of electrical power during the flight and the failure of the T-handle from the cable led to a forced landing with the landing gear retracted. - [NTSB CEN18LA097](https://openairdocs.org/ntsb/CEN18LA097.md): Piper PA 24-260 · Fargo, ND · Accident · No injuries · Limited investigation · Final report · Feb 8, 2018 · N9360P · Substantial damage > The pilot's failure to use the published emergency procedures to manually extend the landing gear when an electrical failure precluded normal extension of the landing gear, resulting in the gear collapse during landing. Contributing to the accident was the… - [NTSB CEN18LA086](https://openairdocs.org/ntsb/CEN18LA086.md): Swearingen SA227 TT · Houston, TX · Accident · No injuries · Limited investigation · Final report · Jan 19, 2018 · N6UP · Substantial damage > The failure of the left starter relay during engine start, which resulted in a loss of electrical and battery power during the flight and led to a forced landing with the nose landing gear not fully extended, causing substantial damage to the engines. - [NTSB ANC18LA009](https://openairdocs.org/ntsb/ANC18LA009.md): Cessna 172RG · Opa Locka, FL · Accident · No injuries · Limited investigation · Final report · Nov 16, 2017 · N6102R · Substantial damage > A failure of the airplane 's electrical system, which led to the failure of the landing gear system, for reasons that could not be determined because postaccident examination and testing revealed no mechanical anomalies that would have precluded normal… - [NTSB WPR18LA021](https://openairdocs.org/ntsb/WPR18LA021.md): Metcalfe Robert B Vans RV 6 · Selma, CA · Accident · No injuries · Limited investigation · Final report · Oct 30, 2017 · N88MV · Substantial damage > The pilot’s failure to properly secure an alternator ground cable swage that led to problems with the electrical system and/or electronic engine controls, which resulted in a total loss of engine power. - [NTSB ERA18LA010](https://openairdocs.org/ntsb/ERA18LA010.md): Beech A24 · Manteo, NC · Accident · Serious injuries · Class 3 · Limited · Final report · Oct 18, 2017 · N400LE · Substantial damage > The failure of maintenance personnel to properly secure wiring during an electrical component installation, which resulted in arcing and smoke in the cockpit. Contributing to the outcome was the flight instructor's failure to attain a proper descent rate… - [NTSB CEN18LA010](https://openairdocs.org/ntsb/CEN18LA010.md): Bellanca 17-30A · Sweetwater, TX · Accident · No injuries · Limited investigation · Final report · Oct 6, 2017 · N8234R · Substantial damage > The loss of engine power during a precautionary approach for landing for reasons that could not be determined based on the available information. Next page: https://openairdocs.org/ntsb-events/332/sequence.md?page=3 ## 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 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?page=2 --- 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.