# NTSB investigations, 2023: Aircraft maintenance event 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. ## Latest cases - [NTSB WPR24LA064](https://openairdocs.org/ntsb/WPR24LA064.md): Diamond Aircraft Ind DA 40 · Spanish Fork, UT · Accident · No injuries · Class 3 · Limited · Final report · Dec 21, 2023 · N453DS · Substantial damage > Maintenance personnel’s improper installation of the left magneto, which resulted in oil starvation to the engine and a subsequent total loss of engine power. - [NTSB WPR24LA034](https://openairdocs.org/ntsb/WPR24LA034.md): Cessna 310 · Hayden, ID · Accident · Minor injuries · Class 3 · Limited · Final report · Nov 13, 2023 · N86H · Substantial damage > The pilot’s failure to maintain adequate airspeed and his exceedance of the airplane’s critical angle of attack, which resulted in a loss of control and subsequent stall during a precautionary landing. Contributing to the accident was the improper maintenance… - [NTSB CEN24LA031](https://openairdocs.org/ntsb/CEN24LA031.md): Powrachute Pegasus · Manhattan, KS · Accident · Serious injuries · Class 3 · Limited · Final report · Oct 21, 2023 · N52631 · Substantial damage > The pilot’s improper modification of the engine cooling system that resulted in an engine overheat and total loss of power. Contributing to the accident was the pilot’s decision to continue the flight after the engine overheat light illuminated instead of… - [NTSB CEN24LA012](https://openairdocs.org/ntsb/CEN24LA012.md): Tvap 4 · Franksville, WI · Accident · No injuries · Class 3 · Limited · Final report · Oct 15, 2023 · N42VZ · Substantial damage > The improper installation of the supplemental ignition system, which resulted in a total loss of engine power. - [NTSB ERA23FA382](https://openairdocs.org/ntsb/ERA23FA382.md): Smith William S Smith Cozy Mark IV · Cullman, AL · Accident · 1 fatal · Class 3 · Field · Final report · Sep 29, 2023 · N95SF · Substantial damage > The pilot’s exceedance of the airplane’s critical angle of attack while maneuvering at low altitude, which resulted in an aerodynamic stall and subsequent loss of control. Contributing to the accident was the pilot/owner’s improper installation of engine… - [NTSB ENG23LA045](https://openairdocs.org/ntsb/ENG23LA045.md): Bell 407 · Linden, NJ · Incident · Class 3 · Limited · Final report · Sep 21, 2023 · N406TD · No damage > The fracture of the upper-left tail boom attachment bolt due to abnormal loading of the bolt caused by a gap and misalignment between the upper-left longeron and the tail boom. Contributing to this incident was the lack of a check to verify the absence of… - [NTSB WPR23LA350](https://openairdocs.org/ntsb/WPR23LA350.md): Cessna U206C · Challis, ID · Accident · No injuries · Class 3 · Limited · Final report · Sep 20, 2023 · N3923G · Substantial damage > The failure of the left main landing gear spring assembly due to a fatigue crack. Contributing to the accident was the improper maintenance on the landing gear spring assembly which allowed corrosion to develop. - [NTSB WPR23LA349](https://openairdocs.org/ntsb/WPR23LA349.md): Cessna 172N · Compton, CA · Accident · Minor injuries · Class 3 · Limited · Final report · Sep 20, 2023 · N733ZN · Substantial damage > The total loss of engine power on takeoff due to water-contaminated fuel. Contributing to the accident was the inadequately maintained fuel system, which resulted in water entering the fuel tanks through the filler caps. - [NTSB CEN23LA363](https://openairdocs.org/ntsb/CEN23LA363.md): Beech C-99 · Lansing, MI · Accident · Minor injuries · Class 4 · Limited · Final report · Aug 15, 2023 · N261SW · Substantial damage > The pilot’s failure to properly set the rudder trim position which resulted in a loss of directional control during takeoff. Contributing was the pilot’s inadequate checklist procedures prior to takeoff. - [NTSB DCA23LA409](https://openairdocs.org/ntsb/DCA23LA409.md): Boeing 767-322 · Chantilly, VA · Accident · Class 4 · Limited · Final report · Aug 3, 2023 · N676UA · Substantial damage > Improper overhaul of the trunnion cross-pin hole that resulted in the development of stress corrosion cracking and eventual failure of the right forward trunnion. - [NTSB ERA23LA347](https://openairdocs.org/ntsb/ERA23LA347.md): Piper PA28 · Knoxville, TN · Accident · No injuries · Class 3 · Limited · Final report · Jul 27, 2023 · N15417 · Substantial damage > 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 WPR23LA272](https://openairdocs.org/ntsb/WPR23LA272.md): Mellinger B L III/Briebleb R Glasair III · Pahrump, NV · Accident · No injuries · Class 3 · Limited · Final report · Jul 17, 2023 · N196G · Substantial damage > A fuel leak due to damaged threads on a fuel line fitting, which resulted in an interruption of fuel flow and a total loss of engine power due to fuel starvation. - [NTSB WPR23LA255](https://openairdocs.org/ntsb/WPR23LA255.md): Avia Stroitel AC-5M · North Plains, OR · Accident · Serious injuries · Class 3 · Limited · Final report · Jul 5, 2023 · N40233 · Substantial damage > The pilot’s failure to maintain control of the motor glider, which resulted in an inflight overstress separation of the right wing during a high-speed, high-wing-load spiral dive recovery. Contributing to the accident was the inadequately manufactured wing… - [NTSB ERA23LA289](https://openairdocs.org/ntsb/ERA23LA289.md): Hughes 269A · Anderson, SC · Accident · No injuries · Class 4 · Limited · Final report · Jun 27, 2023 · N90270 · Substantial damage > The mechanics’ improper torquing of the main rotor blade dampers, which resulted in a ground resonance event during landing. - [NTSB ERA23LA279](https://openairdocs.org/ntsb/ERA23LA279.md): Edmisten Robert Eugene SR Rans S-14 Airaile · Bonaire, GA · Accident · Serious injuries · Class 4 · Limited · Final report · Jun 25, 2023 · N528RE · Substantial damage > The pilot’s failure to properly adjust the propeller’s pitch angle, which resulted in a loss of thrust and an inability to maintain altitude. - [NTSB ERA23FA273](https://openairdocs.org/ntsb/ERA23FA273.md): Mooney M20R · Southport, NC · Accident · 1 fatal · Class 3 · Field · Final report · Jun 25, 2023 · N13LV · Destroyed > The pilot’s improper decision to fly a known unairworthy airplane, which resulted in a total loss of engine power due to oil starvation. - [NTSB CEN23LA255](https://openairdocs.org/ntsb/CEN23LA255.md): Piper PA-25-235 · Westhope, ND · Accident · Serious injuries · Class 4 · Limited · Final report · Jun 22, 2023 · N7419Z · Substantial damage > The pilot’s failure to maintain aircraft control that resulted in an impact with terrain after takeoff. - [NTSB CEN23LA246](https://openairdocs.org/ntsb/CEN23LA246.md): Piper PA46 · College Station, TX · Accident · No injuries · Class 3 · Limited · Final report · Jun 18, 2023 · N463HP · Substantial damage > The mechanic’s failure to properly secure the oil suction screen plug during recent maintenance, which resulted in an oil leak and subsequent loss of engine power due to oil starvation. - [NTSB WPR23LA232](https://openairdocs.org/ntsb/WPR23LA232.md): Piper PA-28-140 · Rochester, NV · Accident · Minor injuries · Class 3 · Limited · Final report · Jun 17, 2023 · N3508K · Substantial damage > A broken fuel line fitting that resulted in a total loss of engine power due to fuel starvation. - [NTSB WPR23LA216](https://openairdocs.org/ntsb/WPR23LA216.md): Cessna 172R · Santa Monica, CA · Accident · No injuries · Class 3 · Limited · Final report · Jun 5, 2023 · N819KS · Substantial damage > A failure of the nose wheel upper torque link bolt, which resulted in a loss of steering control. Contributing to the accident were maintenance personnel’s failure to inspect and replace the fractured bolt and the pilot’s oversight of the bolt during his… - [NTSB CEN23LA182](https://openairdocs.org/ntsb/CEN23LA182.md): Loehle Acft 5151 Mustang · Hector, MN · Accident · No injuries · Class 3 · Limited · Final report · May 11, 2023 · N91026 · Substantial damage > A total loss of engine power due to fuel starvation as a result of the pilot’s modifications to the fuel system. Contributing to the accident was the pilot’s decision to continue the takeoff despite observing lower than anticipated propeller rpm, his decision… - [NTSB ERA23LA225](https://openairdocs.org/ntsb/ERA23LA225.md): Mooney M20K · Hillsborough Township, NJ · Accident · Minor injuries · Class 3 · Limited · Final report · May 6, 2023 · N262MK · Substantial damage > The partial loss of engine power due to maintenance personnel’s failure to ensure that the ignition harnesses were properly secured and the pilot’s inappropriate pitch control inputs, which resulted in the airplane exceeding its critical angle of attack and… - [NTSB WPR23LA177](https://openairdocs.org/ntsb/WPR23LA177.md): Cessna 210M · Pasco, WA · Accident · No injuries · Class 3 · Limited · Final report · May 4, 2023 · N777CF · Substantial damage > Improper maintenance on the fuel outlet line to the fuel servo, which resulted in the line partially separating from the fuel outlet fitting and the subsequent fuel starvation and total loss of engine power. - [NTSB CEN23LA166](https://openairdocs.org/ntsb/CEN23LA166.md): Protech PT2 · Columbia, MS · Accident · No injuries · Class 3 · Limited · Final report · Apr 25, 2023 · N44048 · Substantial damage > The pilot’s lack of proper maintenance, which allowed the fuel filters to become obstructed, leading to fuel starvation and a subsequent engine power loss. - [NTSB ERA23LA202](https://openairdocs.org/ntsb/ERA23LA202.md): Rockwell International 112 · Miami, FL · Accident · No injuries · Class 3 · Limited · Final report · Apr 18, 2023 · N12RX · Substantial damage > Failure of the right main landing gear due to inadequate hydraulic pressure as result of a torn O-ring that was installed on the hydraulic pack’s check valve during overhaul. - [NTSB CEN23LA165](https://openairdocs.org/ntsb/CEN23LA165.md): Pipistrel Lsa Sinus · Kingsford, MI · Accident · No injuries · Class 3 · Limited · Final report · Apr 13, 2023 · N413EK · Substantial damage > The failure of maintenance personnel to properly secure the left carburetor bowl cover, which resulted in an engine fire before takeoff. - [NTSB WPR23LA149](https://openairdocs.org/ntsb/WPR23LA149.md): Stevens Kelly C RV-7 · Morgan, UT · Accident · No injuries · Class 3 · Limited · Final report · Apr 9, 2023 · N17NK · Substantial damage > The pilot/builder improperly torqued the propeller attachment bolts while reinstalling the propeller, which resulted in the fatigue failure of the bolts and the separation of the propeller assembly. - [NTSB ERA23LA183](https://openairdocs.org/ntsb/ERA23LA183.md): Peterson Mark G Peterson A600 · Foley, AL · Accident · No injuries · Class 4 · Limited · Final report · Apr 6, 2023 · N272AM · Destroyed > The loss of engine power during the initial climb due to the disconnection of the turbocharger air intake hose and clamp, and the pilot’s inadequate servicing and preflight inspection of the turbocharger air intake clamp. - [NTSB ERA23LA162](https://openairdocs.org/ntsb/ERA23LA162.md): Cessna 177 · Travelers Rest, SC · Accident · No injuries · Class 3 · Limited · Final report · Mar 23, 2023 · N13612 · Substantial damage > Maintenance personnel’s improper servicing of the magneto, which resulted in its accelerated wear, failure, and the total loss of engine power. - [NTSB ERA23LA173](https://openairdocs.org/ntsb/ERA23LA173.md): Beech P35 · Perry, FL · Accident · No injuries · Class 3 · Limited · Final report · Mar 5, 2023 · N9777Y · Substantial damage > Maintenance personnel’s incorrect torquing of the oil filter adapter jam nut, resulting in the failure of the adapter threads, a complete loss of oil, and subsequent total loss of engine power. - [NTSB ERA23LA120](https://openairdocs.org/ntsb/ERA23LA120.md): Mooney M20C · Calhoun, GA · Accident · Serious injuries · Class 3 · Limited · Final report · Jan 28, 2023 · N5587Q · Destroyed > A partial loss of engine power during the initial climb due to an improperly installed spark plug. - [NTSB ERA23FA103](https://openairdocs.org/ntsb/ERA23FA103.md): Piper PA28 · Suffolk, VA · Accident · 2 fatal · Class 3 · Field · Final report · Jan 7, 2023 · N592FL · Destroyed > The pilot’s decision to fly the airplane without confirming it had been released from maintenance, which resulted in a partial loss of engine power due to loose magnetos. Contributing to the outcome was the pilot’s failure to maintain adequate airspeed and… ## 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 year(c."eventDate") = 2023 AND c."mKey" IN (SELECT s.case_mkey FROM 'https://openairdocs.org/data/latest/ntsb_events.parquet' s WHERE s."tier2Number" = '040' 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/040/sequence?year=2023 --- 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.