# NTSB investigations, CA: Sys/Comp malf/fail (non-power)

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 2 · 59 cases

## Latest cases

- [NTSB WPR26LA367](https://openairdocs.org/ntsb/WPR26LA367.md): Hawker Beechcraft G36 · Murrieta, CA · Accident · No injuries · Class 3 · Limited · Preliminary report · Aug 30, 2026 · N646MM · Substantial damage
  > On August 30, 2026, at 1040 Pacific daylight time, a Hawker Beechcraft G36, N646MM, was substantially damaged when it was involved in an accident near Murrieta, California. The student pilot, flight instructor, and 4 passengers were not injured. The airplane…
- [NTSB WPR26LA227](https://openairdocs.org/ntsb/WPR26LA227.md): Emigh Trojan A2 · Healdsburg, CA · Accident · No injuries · Class 3 · Limited · Preliminary report · Jun 21, 2026 · N8329H · Substantial damage
  > On June 21, 2026, about 1210 Pacific daylight time, an Emigh Trojan A-2, N8329H, was substantially damaged when it was involved in an accident near Healdsburg, California. The flight instructor and student pilot were not injured. The airplane was operated as…
- [NTSB CEN26FA015](https://openairdocs.org/ntsb/CEN26FA015.md): Bell 222 · Huntington Beach, CA · Accident · Serious injuries · Class 3 · Field · Preliminary report · Oct 11, 2025 · N222EX · Substantial damage
  > On October 11, 2025, at 1401 Pacific daylight time, a Bell 222 helicopter, N222EX, was substantially damaged when it was involved in an accident near Huntington Beach, California. The pilot and passenger received serious injuries. One person on the ground…
- [NTSB WPR25LA300](https://openairdocs.org/ntsb/WPR25LA300.md): Aeronca 7AC · Firebaugh, CA · Accident · No injuries · Class 4 · Limited · Final report · Sep 1, 2025 · N82003 · Substantial damage
  > A loss of directional control during landing due to the partial separation of the right main landing gear oleo strut from a failed weld.
- [NTSB WPR25LA102](https://openairdocs.org/ntsb/WPR25LA102.md): Cessna 172S · La Verne, CA · Accident · No injuries · Class 3 · Limited · Final report · Feb 23, 2025 · N137RJ · Substantial damage
  > The failure of the right main landing gear tubular spring due to a fatigue crack that originated at the airframe connecting bolt hole and progressed to an overstress fracture.
- [NTSB WPR25LA059](https://openairdocs.org/ntsb/WPR25LA059.md): Boeing A75N1(PT17) · El Cajon, CA · Accident · No injuries · Class 4 · Limited · Final report · Dec 8, 2024 · N9199R · Substantial damage
  > The pilot’s inability to maintain directional control during landing with a flat tire.
- [NTSB WPR24LA275](https://openairdocs.org/ntsb/WPR24LA275.md): Piper PA-30 · Concord, CA · Accident · No injuries · Class 3 · Limited · Final report · Aug 9, 2024 · N8458Y · Substantial damage
  > The failure of the main landing gear to extend and lock for reasons that could not be determined based on the available information. Contributing to the accident was a mechanical failure of the manual landing gear release mechanism due to inadequate clearance…
- [NTSB WPR24LA134](https://openairdocs.org/ntsb/WPR24LA134.md): Bell 206L-3 · Tracy, CA · Accident · No injuries · Class 3 · Limited · Final report · Apr 23, 2024 · N17592 · Substantial damage
  > A loss of collective control authority due to fatigue failure of the collective servo cylinder extension arms from corrosion pitting.
- [NTSB WPR24LA110](https://openairdocs.org/ntsb/WPR24LA110.md): Beech 60 · Chino, CA · Accident · No injuries · Class 3 · Limited · Final report · Mar 11, 2024 · N167U · Substantial damage
  > Corrosion on a landing gear retract rod assembly which precluded an extension of the gear and resulted in a gear-up landing.
- [NTSB WPR24LA067](https://openairdocs.org/ntsb/WPR24LA067.md): Bell 206B · El Centro, CA · Accident · No injuries · Class 3 · Limited · Final report · Dec 24, 2023 · N111PM · Substantial damage
  > An in-flight failure of the engine-to-transmission driveshaft due to a fatigue fracture of the forward-most flex plate in the forward KAflex coupling that resulted from a loose bolt attachment between the flex plate and the forward driveshaft coupling.…
- [NTSB WPR24LA032](https://openairdocs.org/ntsb/WPR24LA032.md): Beech 23 · Santa Ynez, CA · Incident · Class 3 · Limited · Investigation open · Nov 12, 2023 · N2358Z
- [NTSB WPR23LA336](https://openairdocs.org/ntsb/WPR23LA336.md): Piper PA-18-135 · Compton, CA · Accident · Minor injuries · Class 3 · Limited · Final report · Sep 3, 2023 · N7199K · Substantial damage
  > An overstress fracture of the pilot’s seat, which resulted in the loss of control during takeoff and the pilot’s inadvertent movement of the fuel selector and subsequent partial loss of engine power.
- [NTSB DCA23FA417](https://openairdocs.org/ntsb/DCA23FA417.md): Boeing 737-890 · Santa Ana, CA · Accident · No injuries · Class 2 · Field · Final report · Aug 21, 2023 · N516AS · Substantial damage
  > Maintenance personnel’s excessive grinding of the left main landing gear’s aft trunnion pin during machining, which imparted heat damage to the base metal and led to the fatigue cracking that caused the pin to fracture during landing.
- [NTSB WPR23LA270](https://openairdocs.org/ntsb/WPR23LA270.md): Sling Sling LSA · Palm Springs, CA · Accident · No injuries · Class 3 · Limited · Final report · Jul 11, 2023 · N294JY · Substantial damage
  > Failure of the landing gear strut during takeoff due to a preexisting cracks that were caused by a manufacturing anomaly during the composite fiber layup process.
- [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 WPR23LA192](https://openairdocs.org/ntsb/WPR23LA192.md): Viking Air DHC-6-400 · Half Moon Bay, CA · Accident · 2 fatal · Class 3 · Limited · Final report · May 20, 2023 · N153QS · Substantial damage
  > The failure of the ferry fuel tank system to transfer fuel during a trans-Pacific flight for reasons that could not be determined, which resulted in fuel starvation and a subsequent ditching into the water.
- [NTSB WPR23LA004](https://openairdocs.org/ntsb/WPR23LA004.md): Bell 206B · Fresno, CA · Accident · Serious injuries · Class 3 · Limited · Final report · Oct 1, 2022 · N284CA · Substantial damage
  > The disbond of a tail rotor drive shaft splined adapter, which resulted in a loss of tail rotor drive and a subsequent hard landing.
- [NTSB WPR22LA291](https://openairdocs.org/ntsb/WPR22LA291.md): Airbus Helicopters AS350B3 · Chino, CA · Accident · No injuries · Class 4 · Limited · Final report · Aug 4, 2022 · N833SB · Substantial damage
  > The subsequent delamination of the main rotor blades as a result of an unidentified main rotor blade impact with vegetation during a previous flight by another pilot.
- [NTSB WPR22LA259](https://openairdocs.org/ntsb/WPR22LA259.md): Socata TB21 · San Marcos, CA · Accident · Minor injuries · Class 3 · Limited · Final report · Jul 17, 2022 · N718TB · Substantial damage
  > The failure of the mechanical fuel pump due to internal friction for reasons that could not be determined based on available evidence, which resulted in a total loss of engine power.
- [NTSB WPR22LA236](https://openairdocs.org/ntsb/WPR22LA236.md): Bell 206B · Merced, CA · Accident · No injuries · Class 3 · Limited · Final report · Jun 24, 2022 · N915B · Substantial damage
  > The in-flight failure of the engine-to-transmission drive shaft due to a fatigue fracture of one of the KAflex flex frames caused by a loose bolt, which resulted in a total loss of power to the transmission and a subsequent hard landing.
- [NTSB WPR22LA183](https://openairdocs.org/ntsb/WPR22LA183.md): Pyka Pelican · Winters, CA · Accident · Class 4 · Limited · Final report · May 14, 2022 · N605PK · Substantial damage
  > Delamination of the uncrewed aircraft systems’ right wing skin surfaces from the wing spar that resulted in a spin and impact with terrain.
- [NTSB WPR22LA149](https://openairdocs.org/ntsb/WPR22LA149.md): Dietrich Ryan S-4 Coyote 1 · Chula Vista, CA · Accident · No injuries · Class 3 · Limited · Final report · Apr 8, 2022 · N3156D · Substantial damage
  > The pilot/owner and maintenance personnel’s improper installation of the right wing’s aft lift strut to the right wing, which resulted in a loss of lift during takeoff, an uncommanded right roll, and an impact with terrain.
- [NTSB WPR22LA084](https://openairdocs.org/ntsb/WPR22LA084.md): Bell UH-1E · Gustine, CA · Accident · No injuries · Class 3 · Limited · Final report · Jan 23, 2022 · N333XL · Substantial damage
  > Failure of the 90° gearbox due to the lack of lubricating oil, which resulted in a loss of rotational drive to the tail rotor and a subsequent loss of control of the helicopter.
- [NTSB WPR22FA048](https://openairdocs.org/ntsb/WPR22FA048.md): Zenith Zodiac CH601XL · Temecula, CA · Accident · 1 fatal · Class 3 · Field · Final report · Nov 23, 2021 · N601KS · Destroyed
  > The failure of the airplane’s canopy latch system, which resulted in the canopy opening in flight and a loss of airplane control. Contributing to the accident was the lack of a secondary canopy latch as recommended by the kit manufacturer.
- [NTSB WPR20LA288](https://openairdocs.org/ntsb/WPR20LA288.md): Cessna 210 · Chino, CA · Accident · No injuries · Class 3 · Limited · Final report · Aug 26, 2020 · N9540T · Substantial damage
  > The failure of the engine-driven hydraulic pump, which resulted in the main landing gear not fully extending and locking into place during landing. Contributing to the accident was the failure of the emergency gear extension system for reasons that could not…
- [NTSB DCA20LA138](https://openairdocs.org/ntsb/DCA20LA138.md): Boeing 767 · Los Angeles, CA · Accident · Serious injuries · Class 3 · Limited · Final report · Aug 19, 2020 · N146FE · Substantial damage
  > The left main landing gear’s failure to extend due to the separation of the brake rod retaining hardware from the aft inboard wheel for reasons that could not be determined based on the available evidence.
- [NTSB WPR20LA104](https://openairdocs.org/ntsb/WPR20LA104.md): Piper PA46 · San Jose, CA · Accident · No injuries · Class 3 · Limited · Final report · Feb 28, 2020 · N304LA · Substantial damage
  > The failure to properly service the hydraulic power pack prevented a normal landing gear extension. Contributing to the accident was the failure of the landing gear emergency release valve to function properly for reasons that could not be determined based on…
- [NTSB WPR18LA089](https://openairdocs.org/ntsb/WPR18LA089.md): Shanks V Roger Vari EZE · Santa Monica, CA · Accident · No injuries · Limited investigation · Final report · Feb 11, 2018 · N944X · Substantial damage
  > An undetected fluid leak in the right brake line, which resulted in a reduction of braking effectiveness at the right wheel and a loss of directional control during the landing roll.
- [NTSB WPR18LA058](https://openairdocs.org/ntsb/WPR18LA058.md): Cessna 210 · San Bernardino, CA · Accident · No injuries · Limited investigation · Final report · Dec 30, 2017 · N222AT · Substantial damage
  > The fatigue failure of the left main landing gear (MLG) saddle, which resulted in the pilot's inability to extend the left MLG. Contributing to the accident was the pilot's improper decision to fly the airplane before the annual inspection was completed and…
- [NTSB WPR17LA159](https://openairdocs.org/ntsb/WPR17LA159.md): Robinson Helicopter R44 II · Van Nuys, CA · Accident · Serious injuries · Limited investigation · Final report · Jul 21, 2017 · N3254E · Substantial damage
  > An improper repair of the right magneto's tachometer and governor signal wire, which failed during cruise flight and initiated a simultaneous malfunction of both the engine tachometer and governor control system, which resulted in erroneous and contradictory…
- [NTSB WPR17LA061](https://openairdocs.org/ntsb/WPR17LA061.md): Beech 95 B55 (T42A) · Cameron Park, CA · Accident · No injuries · Class 3 · Limited · Final report · Feb 1, 2017 · N321BJ · Substantial damage
  > Failure of the landing gear to extend as a result of excessive wear within the landing gear gearbox and motor, which resulted in a gear-up landing.
- [NTSB WPR16IA100](https://openairdocs.org/ntsb/WPR16IA100.md): Piper PA28 · San Carlos, CA · Incident · No injuries · Incident investigation · Final report · Apr 29, 2016 · N200KR · No damage
  > The failure of maintenance personnel to properly install and secure the input swivel boot on the swivel joint, which resulted in excessive vibration that led to fatigue cracks and failure of the throttle cable.
- [NTSB GAA16CA074](https://openairdocs.org/ntsb/GAA16CA074.md): Cessna 177 · Palm Springs, CA · Accident · No injuries · Data collection · Final report · Nov 14, 2015 · N2112Q · Substantial damage
  > The failure of a shaft seal at the nose gear retraction/extension actuator, which resulted in a loss of hydraulic fluid and a main landing gear collapse during landing.
- [NTSB WPR15LA149](https://openairdocs.org/ntsb/WPR15LA149.md): Piper PA 18-150 · La Quinta, CA · Accident · Minor injuries · Limited investigation · Final report · Apr 17, 2015 · N162SC · Substantial damage
  > Maintenance personnel’s failure to properly repair a propeller deformation, which resulted in a fatigue crack, separation of a propeller blade tip, and forced landing onto uneven terrain.
- [NTSB WPR15IA046](https://openairdocs.org/ntsb/WPR15IA046.md): Embraer EMB-505 · Palm Springs, CA · Incident · No injuries · Incident investigation · Final report · Nov 23, 2014 · C-GJOL · Minor damage
  > The failure of the gust lock actuator solenoid for reasons that could not be determined because postaccident examination of the rudder gust lock system revealed no mechanical malfunctions or failures that would have precluded normal operation.
- [NTSB WPR14LA062](https://openairdocs.org/ntsb/WPR14LA062.md): Hiller UH 12E · Chowchilla, CA · Accident · No injuries · Limited investigation · Final report · Dec 9, 2013 · N36MV · Substantial damage
  > The failure of the torsional drive coupling, which resulted in a loss of drive to the main rotor system during low-altitude flight.
- [NTSB WPR13LA274](https://openairdocs.org/ntsb/WPR13LA274.md): Cessna T210L · Fresno, CA · Accident · No injuries · Limited investigation · Final report · Jun 16, 2013 · N94086 · Substantial damage
  > A hydraulic fluid leak in the nose landing gear actuator rod seal, which prevented the hydraulic system from building up sufficient pressure to fully retract or extend the main landing gear.
- [NTSB WPR13LA184](https://openairdocs.org/ntsb/WPR13LA184.md): Beech A36TC · Big Bear City, CA · Accident · Serious injuries · Limited investigation · Final report · Apr 6, 2013 · N36SG · Substantial damage
  > The improper overhaul of the propeller, which resulted in the installation of an incorrect propeller actuating pin and deformation of the ferrule hole and led to the pin’s fatigue failure. Contributing to the accident was the failure of multiple owners and…
- [NTSB WPR12LA233](https://openairdocs.org/ntsb/WPR12LA233.md): Grumman Acft ENG Cor-Schweizer G-164A · Wilton, CA · Accident · No injuries · Limited investigation · Final report · May 27, 2012 · N8380 · Substantial damage
  > The failure of the hopper gate mechanism and subsequent sulfur fire during a low-level maneuver.
- [NTSB WPR12LA096](https://openairdocs.org/ntsb/WPR12LA096.md): Arrow Falcon Exporters OH-58A · Brawley, CA · Accident · No injuries · Limited investigation · Final report · Jan 21, 2012 · N902SF · Substantial damage
  > The failure of the main rotor mast due to fatigue cracks that originated from corrosion pits. Contributing to the accident was the operator’s failure to adhere to the manufacturer’s recommended overhaul interval for the main rotor mast.
- [NTSB WPR11LA303](https://openairdocs.org/ntsb/WPR11LA303.md): Arrow Falcon Exporters OH-58C · Brentwood, CA · Accident · Serious injuries · Limited investigation · Final report · Jul 3, 2011 · N6264D · Substantial damage
  > The failure of the main rotor mast due to fatigue cracking originating from corrosion pits.
- [NTSB WPR11LA282](https://openairdocs.org/ntsb/WPR11LA282.md): Hiller UH12E · Hanford, CA · Accident · No injuries · Limited investigation · Final report · Jun 23, 2011 · N99579 · Substantial damage
  > The separation of the tail rotor drive gear shaft due to torsional fatigue of its threaded portion, which resulted in a loss of tail rotor control.
- [NTSB DCA11PA075](https://openairdocs.org/ntsb/DCA11PA075.md): Boeing 707-321B · Point Mugu, CA · Accident · Minor injuries · Final report · May 19, 2011 · N707AR · Substantial damage
  > the failure of a midspar fitting, which was susceptible to fatigue cracking and should have been replaced with a newer, more fatigue-resistant version of the fitting as required by an airworthiness directive. Also causal was an erroneous maintenance entry…
- [NTSB WPR11LA205](https://openairdocs.org/ntsb/WPR11LA205.md): Bennett Midjet Mustang I · Ramona, CA · Accident · Minor injuries · Limited investigation · Final report · Apr 10, 2011 · N611JB · Substantial damage
  > The pilot's inability to maintain directional control during the landing roll due to the overload separation of the left brake master cylinder from the left rudder pedal assembly.
- [NTSB WPR11LA119](https://openairdocs.org/ntsb/WPR11LA119.md): Czech Sportplanes Sro Dynamic · Palm Springs, CA · Accident · No injuries · Limited investigation · Final report · Jan 9, 2011 · N595DY · Substantial damage
  > Inadvertent opening of the airplane canopy during the landing approach in a downdraft, which resulted in a rapid descent and hard landing.
- [NTSB WPR10TA318](https://openairdocs.org/ntsb/WPR10TA318.md): Bell UH-1H · Santa Barbara, CA · Accident · No injuries · Final report · Jun 24, 2010 · N205KS · Substantial damage
  > The failure of left tailboom upper attachment fitting as a result of fatigue.
- [NTSB WPR10LA275](https://openairdocs.org/ntsb/WPR10LA275.md): Airborne Windsports PTY Edge X · Alturas, CA · Accident · Minor injuries · Limited investigation · Final report · Jun 2, 2010 · N354MB · Substantial damage
  > Fracture of a mast support cable due to corrosion, which resulted in a loss of control during the landing roll.
- [NTSB WPR10IA256](https://openairdocs.org/ntsb/WPR10IA256.md): Bombardier CL-600-2B19 · Ontario, CA · Incident · No injuries · Incident investigation · Final report · May 23, 2010 · N925SW · Minor damage
  > Failure of the airplane’s nose landing gear to extend for undetermined reasons.
- [NTSB WPR10LA253](https://openairdocs.org/ntsb/WPR10LA253.md): Schweizer G-164B · Robbins, CA · Accident · Serious injuries · Limited investigation · Final report · May 21, 2010 · N3633C · Substantial damage
  > The failure of the wheel hub flange, which allowed the over size tire to expand and impinge on the brake disc and caliper, which resulted in a loss of control during the landing.
- [NTSB WPR10LA252](https://openairdocs.org/ntsb/WPR10LA252.md): Luscombe Silvaire S-LSA-8C · Bakersfield, CA · Accident · Serious injuries · Limited investigation · Final report · May 21, 2010 · N599LS · Substantial damage
  > The pilot's continued operation of the airplane with known mechanical deficiencies, which resulted in a loss of engine power due to fuel starvation.

Next page: https://openairdocs.org/ntsb-events/330/cases.md?state=CA&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."eventStateOrRegion" = 'CA' AND c."eventCountry" = 'USA'
  AND c."mKey" IN (SELECT e.case_mkey FROM 'https://openairdocs.org/data/latest/ntsb_events.parquet' e WHERE e."isDefiningEvent" AND e."tier2Number" = '330')
ORDER BY c."eventDate" DESC, c."ntsbNumber" DESC
```

This list as a web page: https://openairdocs.org/ntsb-events/330/cases?state=CA

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