# 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 3 of 4 · 182 cases ## Cases, newest first - [NTSB CEN17LA313](https://openairdocs.org/ntsb/CEN17LA313.md): Canion Michael W Zodiac 601XL · Grady, AR · Accident · No injuries · Limited investigation · Final report · Jul 20, 2017 · N577M · Substantial damage > The loss of engine power due to a lack of ignition resulting from a broken alternator wire. - [NTSB WPR17FA155](https://openairdocs.org/ntsb/WPR17FA155.md): Evolution 19 Lancair Evolution · Mesa, AZ · Accident · 2 fatal · Field investigation · Final report · Jul 17, 2017 · N571JM · Substantial damage > The pilot's failure to maintain adequate airspeed while maneuvering for landing, which resulted in an exceedance of the airplane's critical angle of attack and a subsequent stall/spin. Contributing to the accident was the pilot's distraction due to a failure… - [NTSB CEN17WA373](https://openairdocs.org/ntsb/CEN17WA373.md): Cessna Cessna U 206 G · Granville Mont-Saint Michel, France · Accident · No injuries · Foreign investigation · Jul 3, 2017 · F-GAMJ · Substantial damage > On July 3, 2017, a Cessna 206 airplane, F-GAMJ, conducted a forced landing after experiencing an inflight fire in the cabin. The pilot was not injured and the airplane sustained substantial damage during the landing. The accident investigation is under the… - [NTSB ERA17TA233](https://openairdocs.org/ntsb/ERA17TA233.md): Lawrence O Nolte Zodiac CH650B · Dover, PA · Accident · No injuries · Final report · Jul 2, 2017 · N650LN · Substantial damage > A total loss of engine power as a result of the loss of all electric fuel pumps due to a loss of electric power because of the installation of an improper battery on the airplane and the use of improper charging cables on the battery. - [NTSB CEN17LA121](https://openairdocs.org/ntsb/CEN17LA121.md): Beech C90A · Rattan, OK · Accident · No injuries · Limited investigation · Final report · Feb 14, 2017 · N1551C · Substantial damage > The loss of electrical power due to the pilot’s inadvertent selection of the engine start switches and the subsequent fuel exhaustion to the left engine as the pilot attempted to locate visual meteorological conditions. Contributing to the accident were the… - [NTSB CEN17LA066](https://openairdocs.org/ntsb/CEN17LA066.md): Gosselin Charles Glastar · Lee's Summit, MO · Accident · Serious injuries · Limited investigation · Final report · Dec 31, 2016 · N120CG · Substantial damage > Partial failure of the electric system due to a battery short, which resulted in a total loss of engine power. - [NTSB ANC17LA014](https://openairdocs.org/ntsb/ANC17LA014.md): Piper PA 32R-300 · McGrath, AK · Accident · Serious injuries · Limited investigation · Final report · Nov 21, 2016 · N4352F · Minor damage > The failure of the nose landing gear to extend and lock due to the failure of the alternator and reduced battery power due to the cold ambient temperature, which prohibited the electrically-driven hydraulic pump from supplying adequate hydraulic pressure to… - [NTSB ERA16LA299](https://openairdocs.org/ntsb/ERA16LA299.md): Progressive Aerodyne Searey · Sebring, FL · Accident · Serious injuries · Limited investigation · Final report · Aug 23, 2016 · N801SR · Substantial damage > A disconnected ground wire during initial climb, which degraded the fuel boost pumps’ performance and resulted in a total loss of engine power due to fuel starvation. - [NTSB WPR16LA164](https://openairdocs.org/ntsb/WPR16LA164.md): Zenith CH601 · Ocean Shores, WA · Accident · Minor injuries · Limited investigation · Final report · Aug 12, 2016 · N619LD · Substantial damage > A reduction in electrical power, which disabled both fuel pumps and resulted in fuel starvation and a loss of engine power. - [NTSB CEN16LA356](https://openairdocs.org/ntsb/CEN16LA356.md): Cessna P210N · Waco, TX · Accident · No injuries · Limited investigation · Final report · Aug 5, 2016 · N323DC · Substantial damage > The failure of the right main landing gear (MLG) down-lock mechanism, which resulted in the collapse of the landing gear. The root cause of the right MLG down-lock mechanism could not be determined because the components were not available for examination. - [NTSB ERA16FA269](https://openairdocs.org/ntsb/ERA16FA269.md): Yakovlev YAK11 · West Mifflin, PA · Accident · 1 fatal · Field investigation · Final report · Jul 25, 2016 · N5940 · Substantial damage > A malfunction of the electrical system, which resulted in an electrical fire in the right wing root of the airplane, which compromised the fuel system and resulted in ignition of fuel. Contributing to the accident was the routing of the electrical wiring near… - [NTSB CEN16LA270](https://openairdocs.org/ntsb/CEN16LA270.md): Cessna 182J · Weatherford, TX · Accident · Serious injuries · Limited investigation · Final report · Jul 19, 2016 · N2644F · Substantial damage > An electrical system malfunction for reasons that could not be determined, and the subsequent loss of engine power due to the loss of the electrical boost pumps. Also causal was the pilot's improper emergency action following the loss of engine power due to… - [NTSB WPR16LA127](https://openairdocs.org/ntsb/WPR16LA127.md): Piper PA46 · Seattle, WA · Accident · No injuries · Class 3 · Limited · Final report · Jun 2, 2016 · N301DM · Substantial damage > The pilot’s failure to use the emergency procedures checklist for generator failures or for gear extension following a loss of electrical power due to the separated flag terminal of a diode in overstress, which resulted in a gear-up landing. - [NTSB DCA16WA166](https://openairdocs.org/ntsb/DCA16WA166.md): Embraer ERJ190 · Boston, MA · Incident · No injuries · Foreign investigation · May 25, 2016 · C-FHOS · Minor damage > Transport Safety Board (TSB) of Canada has notified the NTSB of an accident involving a EMBRAER ERJ190 airplane that occurred on May 25, 2016. The NTSB has appointed a U.S. Accredited Representative to assist the government of Canada's investigation under the… - [NTSB CEN16WA398](https://openairdocs.org/ntsb/CEN16WA398.md): Cirrus SR22 · Ailly-sur-Somme, France · Accident · Serious injuries · Foreign investigation · May 16, 2016 · N19BV · Destroyed - [NTSB CEN16WA179](https://openairdocs.org/ntsb/CEN16WA179.md): Swearingen SA 226T · Andorra, Lleida, Spain, Spain · Accident · No injuries · Foreign investigation · Apr 26, 2016 · N125WG · Substantial damage > On April 26, 2016, about 1535 hours universal coordinated time, a Swearingen SA-226T airplane, United States registration N125WG, was substantially damaged during landing at the Andorra – La Seu d'Urgell Airport (LESU); Andorra, Lleida, Spain. The airplane… - [NTSB CEN16LA167](https://openairdocs.org/ntsb/CEN16LA167.md): Probst Zenair 601XL · Hempstead, TX · Accident · No injuries · Limited investigation · Final report · Apr 24, 2016 · C-GXLP · Substantial damage > A loose output connection from the generator voltage regulator, which resulted in a loss of power to the electronic ignition system, a total loss of engine power, and a subsequent forced landing, during which the airplane impacted a sign pole. - [NTSB CEN16WA150](https://openairdocs.org/ntsb/CEN16WA150.md): Robinson R22 Beta · Bern, Switzerland · Incident · No injuries · Foreign investigation · Apr 6, 2016 · HB-ZGO · Minor damage > On April 6, 2016, about 1330 Universal Coordinated Time (UTC), the crew of a Robinson R22 BETA, Swiss registration HB-ZGO, made a precautionary landing at Bern Airport (LSZB), Bern, Switzerland, after they smelled smoke. They noted the alternator had failed… - [NTSB ERA16LA135](https://openairdocs.org/ntsb/ERA16LA135.md): Cessna 210L · Myrtle Beach, SC · Accident · No injuries · Limited investigation · Final report · Mar 19, 2016 · N59196 · Substantial damage > A complete loss of electrical power, which resulted from the separation of an alternator wire due to corrosion. Contributing to the accident was the failure of the emergency landing gear extension system due to a lack of hydraulic fluid, which resulted in… - [NTSB ERA15LA333](https://openairdocs.org/ntsb/ERA15LA333.md): Beech E 90 · Fayetteville, TN · Accident · No injuries · Limited investigation · Final report · Aug 28, 2015 · N891PC · Substantial damage > A total loss of electrical power for reasons that could not be determined and the pilot's subsequent failure to properly follow the manual landing gear extension procedures, which resulted in the landing gear not extending. - [NTSB ERA15LA323](https://openairdocs.org/ntsb/ERA15LA323.md): Cessna 150 · Dorado, PR · Accident · Serious injuries · Limited investigation · Final report · Aug 22, 2015 · N4057V · Substantial damage > A short circuit of unknown origin, which resulted in electrical arcing in the engine compartment and smoke in the cockpit, which necessitated a precautionary landing to a field. - [NTSB CEN15LA369](https://openairdocs.org/ntsb/CEN15LA369.md): Cessna 182P · Bolivar, MO · Accident · Minor injuries · Limited investigation · Final report · Aug 18, 2015 · N6KW · Substantial damage > Total electrical failure due to a failed voltage regulator and the pilot’s failure to maintain a proper airspeed during a precautionary landing, which resulted in a loss of directional control and a runway excursion. - [NTSB WPR15LA165](https://openairdocs.org/ntsb/WPR15LA165.md): Raytheon B200 · Carlsbad, CA · Accident · No injuries · Limited investigation · Final report · May 16, 2015 · N505SP · Substantial damage > The pilot’s inadvertently turning on the starter switches, which turned off the generators and resulted in a loss of electrical power and gear-up landing. Contributing to the accident was the pilot’s failure to follow the emergency procedures for a loss of… - [NTSB ERA15IA198](https://openairdocs.org/ntsb/ERA15IA198.md): Dassault-Breguet Mystere Falcon 900 · Orlando, FL · Incident · No injuries · Class 2 · Incident · Final report · Apr 16, 2015 · N610RL · Minor damage > Unknown maintenance personnel’s inadequate securing of a wiring bundle during a maintenance, repair, or modification event, which led to chafing of the wiring bundle, an electrical short and arcing, and a subsequent in-flight fire. - [NTSB CEN14LA441](https://openairdocs.org/ntsb/CEN14LA441.md): Becker Elmer L Stol CH 750 · Grain Valley, MO · Accident · Serious injuries · Limited investigation · Final report · Aug 19, 2014 · N484XB · Substantial damage > The pilot’s failure to maintain airplane control during a low-speed, high-pitch climb after the airplane experienced a loss of electrical power and subsequent total loss of engine power, which resulted in an aerodynamic stall. Contributing to the accident was… - [NTSB ENG14IA019](https://openairdocs.org/ntsb/ENG14IA019.md): Boeing 767 332 · Los Angeles, CA · Incident · No injuries · Incident investigation · Final report · Jul 11, 2014 · N139DL · Minor damage > The combination of fuel leaking from the integrated drive generator (IDG) fuel/oil heat exchanger and the coincident arcing of the IDG power feeder cables that ignited the leaking fuel. Contributing to the ignition of the fuel was the misrouting of the IDG… - [NTSB ERA14LA311](https://openairdocs.org/ntsb/ERA14LA311.md): Robinson Helicopter R44 II · Nashville, TN · Accident · No injuries · Limited investigation · Final report · Jun 24, 2014 · N544BS · Substantial damage > The pilot’s failure to maintain rotor rpm during an autorotation after a perceived partial loss of power, which resulted in a hard landing. Contributing to the accident was radio frequency interference with the governor controller, which resulted in an… - [NTSB ERA14LA252](https://openairdocs.org/ntsb/ERA14LA252.md): Cessna 182 · Elkton, MD · Accident · No injuries · Limited investigation · Final report · May 21, 2014 · N182PJ · Substantial damage > The pilot’s failure to attain the proper touchdown point during a no-flap landing to a wet, down-sloping runway, and the airplane's dynamic hydroplaning after touchdown, which resulted in a runway overrun. Contributing to the accident was a total loss of… - [NTSB ERA14LA244](https://openairdocs.org/ntsb/ERA14LA244.md): Piper PA-28-235 · Brooksville, FL · Accident · No injuries · Limited investigation · Final report · May 9, 2014 · N8683W · Substantial damage > The pilot’s loss of directional control while landing at night, which resulted in a runway excursion and collision with airport signage. Contributing to the accident was the total loss of electrical power, which necessitated the pilot having to land without… - [NTSB ERA14CA171](https://openairdocs.org/ntsb/ERA14CA171.md): Cessna 172 · Carlisle, PA · Accident · Serious injuries · Data collection · Final report · Mar 24, 2014 · N4214F · Substantial damage > The pilot's decision to depart with a known mechanical malfunction and his improper fuel planning, which resulted in a total loss of engine power due to fuel exhaustion and subsequent impact with terrain during an off-airport landing. - [NTSB CEN14LA168](https://openairdocs.org/ntsb/CEN14LA168.md): Olson Perry D Titan 51 Mustang · Evans, CO · Accident · No injuries · Limited investigation · Final report · Mar 21, 2014 · N43889 · Substantial damage > The builder's improper wiring of both fuel pumps to the battery-powered bus, which resulted in a total loss of engine power when the batteries failed because all power to the fuel pumps was lost. - [NTSB DCA14CA043](https://openairdocs.org/ntsb/DCA14CA043.md): General Atomics MQ-9 · Point Loma, CA · Accident · No injuries · Data collection · Final report · Jan 27, 2014 · CBP-159 · Destroyed > intentional controlled ditching of the aircraft due to failure of the starter/generator supplying electrical power to the aircraft. - [NTSB WPR13FA368](https://openairdocs.org/ntsb/WPR13FA368.md): Beech E35 · West Yellowstone, MT · Accident · 1 fatal · Field investigation · Final report · Aug 12, 2013 · N3226C · Substantial damage > The pilot's failure to maintain airplane control while aligning the airplane with the runway for landing, which resulted in the airplane exceeding its critical angle of attack and experiencing an aerodynamic stall. Contributing to the accident was the pilot's… - [NTSB ERA13LA363](https://openairdocs.org/ntsb/ERA13LA363.md): Mooney M20R · Tallahassee, FL · Accident · No injuries · Limited investigation · Final report · Aug 4, 2013 · N1034S · Substantial damage > The pilot's failure to troubleshoot the in-flight electrical problem and restore power using the operable redundant battery and his decision not to manually extend the airplane's landing gear, which resulted in a gear-up landing. Contributing to the accident… - [NTSB DCA13WA169](https://openairdocs.org/ntsb/DCA13WA169.md): Boeing 737 - 377 · Leeds, United Kingdom · Incident · No injuries · Foreign investigation · Aug 2, 2013 · G-CELF · No damage > The United Kingdom Air Accidents Investigation Branch (AAIB) has notified the NTSB of an accident involving a Boeing 737-300 airplane that occurred on August 02, 2013. The NTSB has appointed a U.S. Accredited Representative to assist the AAIB's investigation… - [NTSB WPR13LA237](https://openairdocs.org/ntsb/WPR13LA237.md): Piper PA-32R-301T · Chandler, AZ · Accident · No injuries · Limited investigation · Final report · May 19, 2013 · N8197W · Substantial damage > The failure of the alternator and/or battery, which prevented the operation of the landing gear extension system and resulted in the nose landing gear collapsing during the landing roll. - [NTSB WPR13LA122](https://openairdocs.org/ntsb/WPR13LA122.md): ST Clair Lancair 360 · Williams, CA · Accident · Serious injuries · Limited investigation · Final report · Feb 12, 2013 · N123ST · Destroyed > An in-flight fire due to an electrical short circuit. - [NTSB CEN13LA141](https://openairdocs.org/ntsb/CEN13LA141.md): Piper PA-24-250 · McKinney, TX · Accident · No injuries · Limited investigation · Final report · Jan 23, 2013 · N6195P · Substantial damage > Collapse of the landing gear for reasons that could not be determined because visual examination did not reveal any mechanical malfunction or failure that would have prevented the gear from locking in the extended position and postaccident damage precluded… - [NTSB WPR13LA060](https://openairdocs.org/ntsb/WPR13LA060.md): Piper PA30 · Phoenix, AZ · Accident · No injuries · Limited investigation · Final report · Nov 24, 2012 · N8747Y · Substantial damage > The pilot's failure to properly inhibit the landing gear transmission motor consistent with the emergency landing gear extension procedure, which precluded the full extension of the landing gear. Contributing to the accident was the airplane's electrical… - [NTSB WPR12LA402](https://openairdocs.org/ntsb/WPR12LA402.md): Hansen HANSEN-VANS RV-6 · Lemolo Lake, OR · Accident · Serious injuries · Limited investigation · Final report · Sep 5, 2012 · N53MH · Substantial damage > An overvoltage event due to the failure of the automotive voltage regulator, which resulted in electrical anomalies and smoke in the cockpit and a subsequent forced off-airport landing. - [NTSB CEN12TA604](https://openairdocs.org/ntsb/CEN12TA604.md): Cessna 182P · Newberry, MI · Accident · Serious injuries · Final report · Sep 2, 2012 · N5981J · Substantial damage > The pilot’s failure to maintain control of the airplane due to distraction from a combination of smoke in the cockpit and a sudden turbulence encounter while on short final approach. The cause of the cockpit smoke could not be determined due to the extensive… - [NTSB DCA12WA127](https://openairdocs.org/ntsb/DCA12WA127.md): Boeing 747-400 · London, United Kingdom · Incident · No injuries · Foreign investigation · Aug 17, 2012 · 9M-MPL · No damage > The United Kingdom's Air Accidents Investigations Branch (AAIB), has notified the NTSB of an accident involving a Boeing 747-400 that occurred on August 17, 2012. The NTSB has appointed a U.S. Accredited Representative to assist the AAIB investigation under… - [NTSB ERA12LA450](https://openairdocs.org/ntsb/ERA12LA450.md): Beech A36 · Johns Island, SC · Accident · No injuries · Limited investigation · Final report · Jul 9, 2012 · N6672B · Substantial damage > The pilot's failure to complete the manual emergency gear extension after a loss of electrical power. Contributing to the accident was the pilot's decision to delegate the landing gear extension to a non-pilot-rated passenger. - [NTSB CEN12LA389](https://openairdocs.org/ntsb/CEN12LA389.md): Hoyle Fighter Escort Wings · Pueblo, CO · Accident · No injuries · Limited investigation · Final report · Jun 23, 2012 · N2051P · Substantial damage > An internal failure of one of the electrical system’s two batteries combined with the inadequate electrical system design, which resulted in a total loss of engine power. - [NTSB ERA12FA280](https://openairdocs.org/ntsb/ERA12FA280.md): Manzitto Michael A Mwlancair 235 · Hudson, KY · Accident · 1 fatal · Field investigation · Final report · Apr 14, 2012 · N235MW · Substantial damage > The pilot's decision to operate the airplane with known electrical system problems, which resulted in the in-flight failure of the electrical wiring interconnect system, loss of electrical power, and subsequent fuel starvation and loss of engine power. - [NTSB CEN12LA220](https://openairdocs.org/ntsb/CEN12LA220.md): Cirrus Design SR22T · Addison, TX · Accident · No injuries · Limited investigation · Final report · Mar 23, 2012 · N229TX · Substantial damage > Maintenance personnel’s improper maintenance, which resulted in the incorrect wiring of the No. 1 alternator and a subsequent electrical system fire during taxi. Contributing to the accident was the airplane manufacturer's inadequate maintenance documentation… - [NTSB WPR12LA097](https://openairdocs.org/ntsb/WPR12LA097.md): Beech 58P · Santa Ana, CA · Accident · No injuries · Limited investigation · Final report · Jan 8, 2012 · N580TC · Substantial damage > The pilot’s failure to review or execute any applicable checklist procedures or troubleshoot or take corrective action before landing despite indications that the landing gear was not extended. Contributing to the accident were the pilot’s misunderstanding of… - [NTSB CEN12LA060](https://openairdocs.org/ntsb/CEN12LA060.md): Cessna 180 · Eau Claire, WI · Accident · No injuries · Limited investigation · Final report · Nov 12, 2011 · N3606C · Substantial damage > The pilot’s disorientation during a night flight, which resulted in an off-airport landing, and his inadequate directional control during the landing roll. Contributing to the accident was the loss of the airplane’s electrical system power. - [NTSB ERA12CA028](https://openairdocs.org/ntsb/ERA12CA028.md): Piper PA-28R-201T · Culpeper, VA · Accident · No injuries · Data collection · Final report · Oct 6, 2011 · N9268C · Substantial damage > The pilot's inadequate knowledge of the airplane's emergency gear extension procedures, which resulted in his failure to successfully perform a manual extension of the landing gear. - [NTSB ERA11LA502](https://openairdocs.org/ntsb/ERA11LA502.md): Cessna P210N · South Deerfield, MA · Accident · Serious injuries · Limited investigation · Final report · Sep 23, 2011 · N210LE · Substantial damage > The failure of the electrical system due to an alternator failure during flight in instrument meteorological conditions, and the pilot’s inadequate preflight inspection and failure to use the approved checklist for the dual alternator system. Contributing to… Next page: https://openairdocs.org/ntsb-events/332/sequence.md?page=4 ## 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=3 --- 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.