# NTSB investigations, AZ: 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.

## Latest cases

- [NTSB WPR25LA148](https://openairdocs.org/ntsb/WPR25LA148.md): Rutan LONG-EZE · Tucson, AZ · Accident · No injuries · Class 3 · Limited · Preliminary report · May 1, 2025 · N433EZ · Substantial damage
  > On May 1, 2025, about 1030 mountain standard time, an experimental amateur-built Long EZE, N433EZ, was substantially damaged when it was involved in an accident near Tucson, Arizona. The pilot was not injured. The airplane was operated as a Title 14 Code of…
- [NTSB WPR24LA061](https://openairdocs.org/ntsb/WPR24LA061.md): Glasair SH2 · Prescott, AZ · Accident · No injuries · Class 3 · Limited · Final report · Dec 26, 2023 · N29TT · Substantial damage
  > Loss of directional control during landing due to an improperly constructed and maintained tailwheel locking assembly.
- [NTSB WPR23LA028](https://openairdocs.org/ntsb/WPR23LA028.md): Eclipse Aerospace EA500 · Mesa, AZ · Accident · No injuries · Class 3 · Limited · Final report · Nov 4, 2022 · N150NE · Substantial damage
  > Maintenance personnel’s failure to properly align the right brake wheel speed transducer, which rendered the right wheel brake ineffective during landing, and the pilot’s subsequent failure to follow the correct procedures to restore braking action during the…
- [NTSB WPR23LA017](https://openairdocs.org/ntsb/WPR23LA017.md): Cessna 177RG · Mesa, AZ · Accident · Serious injuries · Class 3 · Limited · Final report · Oct 18, 2022 · N747ML · Substantial damage
  > The failure of maintenance personnel to properly secure the fuel supply line to the fuel flow divider, which resulted in a fuel leak, fuel exhaustion, and a total loss of engine power.
- [NTSB WPR22LA357](https://openairdocs.org/ntsb/WPR22LA357.md): Vashon Ranger R7 · Glendale, AZ · Accident · No injuries · Class 3 · Limited · Final report · Sep 27, 2022 · N151VR · Substantial damage
  > Failure of the landing gear due to material deficiencies that reduced the strength of the landing gear.
- [NTSB WPR22LA341](https://openairdocs.org/ntsb/WPR22LA341.md): Cessna 750 · Mesa, AZ · Accident · No injuries · Class 3 · Limited · Final report · Sep 7, 2022 · N15TZ · Substantial damage
  > The pilot’s improper decision to depart on the accident flight with a known hydraulic leak, resulting in an in-flight hydraulic system failure, and the pilot’s attempt to land during an unstabilized approach, which resulted in a loss of control during the…
- [NTSB WPR20CA298](https://openairdocs.org/ntsb/WPR20CA298.md): Cessna 208 · Whitmore, AZ · Accident · No injuries · Class 4 · Data collection · Final report · Sep 7, 2020 · N186GC · Substantial damage
  > A loss of directional control during landing due to a flat main landing gear tire, which resulted in a lateral runway excursion and impact with terrain.
- [NTSB WPR19LA220](https://openairdocs.org/ntsb/WPR19LA220.md): Piper PA 30 · Phoenix, AZ · Accident · No injuries · Class 3 · Limited · Final report · Aug 8, 2019 · N10KC · Substantial damage
  > The failure of the landing gear due to the nose gear being positioned to the far right during retraction, which caused the nose gear to jam upon retraction.
- [NTSB WPR18LA037](https://openairdocs.org/ntsb/WPR18LA037.md): Columbia Aircraft Mfg LC41 550FG · Oro Valley, AZ · Accident · No injuries · Class 3 · Limited · Final report · Nov 27, 2017 · N2526C · Substantial damage
  > The inadequate cooling time between repeated heavy braking applications, which resulted in the brakes overheating and a subsequent brake fire during the aborted takeoff sequence.
- [NTSB WPR17LA121](https://openairdocs.org/ntsb/WPR17LA121.md): Bob Frederick Titan T-51 · Goodyear, AZ · Accident · No injuries · Limited investigation · Final report · Jun 4, 2017 · N51FB · Substantial damage
  > Failure of the propeller speed reduction gearbox input drive gear during the airplane’s initial climb for reasons that could not be determined due to extensive damage.
- [NTSB WPR15IA244](https://openairdocs.org/ntsb/WPR15IA244.md): Quest Kodiac 100 · Page, AZ · Incident · No injuries · Incident investigation · Final report · Aug 17, 2015 · N771RT · Minor damage
  > The pilot's inadvertent failure to engage the seat in the locked position before takeoff, which resulted in the seat sliding back during the takeoff roll and a subsequent loss of directional control. Contributing to the incident was the seat locking…
- [NTSB WPR15LA183](https://openairdocs.org/ntsb/WPR15LA183.md): Beech E33A · Tucson, AZ · Accident · No injuries · Limited investigation · Final report · Jun 11, 2015 · N8401N · Substantial damage
  > A loss of left braking action for reasons that could not be determined because postaccident examination did not reveal any evidence of preimpact mechanical failures or malfunctions that would have precluded normal operation, which resulted in a loss of…
- [NTSB WPR15IA080](https://openairdocs.org/ntsb/WPR15IA080.md): Robinson Helicopter R22 Beta II · Phoenix, AZ · Incident · No injuries · Incident investigation · Final report · Dec 30, 2014 · N7041X · No damage
  > The failure of the fanshaft due to fatigue.
- [NTSB WPR15LA038](https://openairdocs.org/ntsb/WPR15LA038.md): Cessna 210B · Bullhead City, AZ · Accident · No injuries · Limited investigation · Final report · Nov 8, 2014 · N9578X · Substantial damage
  > The failure of the landing gear actuator housing during landing for reasons that could not be determined based on the available evidence.
- [NTSB WPR15IA035](https://openairdocs.org/ntsb/WPR15IA035.md): North American P51 - D · Mesa, AZ · Incident · No injuries · Incident investigation · Final report · Oct 23, 2014 · N351BD · Minor damage
  > The failure of the left main landing gear to extend, which resulted in a gear-up landing. The reason for the left main landing gear’s failure to operate normally could not be determined because postincident examination of the landing gear system did not…
- [NTSB WPR14CA390](https://openairdocs.org/ntsb/WPR14CA390.md): William M Oprendek Pitts S1S · Sedona, AZ · Accident · No injuries · Data collection · Final report · Sep 25, 2014 · N93DB · Substantial damage
  > Failure of the tailwheel steering assembly during maneuvering flight, which resulted in a loss of directional control during the landing roll.
- [NTSB WPR14LA050](https://openairdocs.org/ntsb/WPR14LA050.md): Piper PA 46 350P · Carefree, AZ · Accident · No injuries · Limited investigation · Final report · Nov 7, 2013 · N60TM · Substantial damage
  > The failure of the left brake master cylinder seal, which rendered the left brake inoperative during landing.
- [NTSB WPR12FA191](https://openairdocs.org/ntsb/WPR12FA191.md): Hughes 269C · Phoenix, AZ · Accident · Serious injuries · Field investigation · Final report · May 2, 2012 · N380TL · Substantial damage
  > A loss of tail rotor drive due to a fatigue failure of the main transmission pinion, which resulted in a loss of directional control during cruise flight.
- [NTSB WPR12LA039](https://openairdocs.org/ntsb/WPR12LA039.md): Williams Helicopter UH-1H · Grand Canyon, AZ · Accident · Serious injuries · Limited investigation · Final report · Nov 15, 2011 · N502AW · Substantial damage
  > The loss of main rotor power due to a main rotor transmission failure from a lack of lubrication.
- [NTSB WPR11LA313](https://openairdocs.org/ntsb/WPR11LA313.md): Piper PA 46-350P · Flagstaff, AZ · Accident · No injuries · Limited investigation · Final report · Jun 26, 2011 · N9246M · Substantial damage
  > Fatigue failure of an engine mount attachment foot, which resulted in collapse of the nose landing gear during landing. Contributing to the accident was the failure of the owner/operator to adhere to the manufacturer's suggested engine mount inspection…
- [NTSB WPR11LA292](https://openairdocs.org/ntsb/WPR11LA292.md): Cessna 320F · Phoenix, AZ · Accident · No injuries · Limited investigation · Final report · Jun 21, 2011 · N6160Q · Substantial damage
  > The mechanic's failure to properly secure the nose landing gear actuator push-pull tube to the landing gear door hinge clevis, which resulted in the gear jamming and not fully retracting after takeoff.
- [NTSB WPR11LA245](https://openairdocs.org/ntsb/WPR11LA245.md): Piper PA-46-310P · Lake Havasu, AZ · Accident · No injuries · Limited investigation · Final report · Jun 2, 2011 · N712MK · Substantial damage
  > The failure of the low pressure switch in the normal landing gear system, which prevented normal operation of that system, and the misrigging of the emergency extension gear release valve, which prevented the system from being depressurized to allow for the…
- [NTSB WPR11CA197](https://openairdocs.org/ntsb/WPR11CA197.md): Xtremeair Sbach 342 · Springerville, AZ · Accident · No injuries · Data collection · Final report · Apr 4, 2011 · N142WP · Substantial damage
  > The pilot's failure to properly secure loose objects in the cockpit area which resulted in a personal locator beacon becoming lodged in the elevator control torque tubes, restricting flight control movement.
- [NTSB WPR11CA112](https://openairdocs.org/ntsb/WPR11CA112.md): Harvey Patten Rans S-6ES · Buckeye, AZ · Accident · Minor injuries · Data collection · Final report · Jan 28, 2011 · N8053R · Substantial damage
  > A disconnection of the elevator control linkage due to incorrect installation or maintenance, which was due to the retaining nut backing off the bolt and allowing the bolt to fall out.
- [NTSB WPR11IA019](https://openairdocs.org/ntsb/WPR11IA019.md): Bombardier CL-600-2B19 · Phoenix, AZ · Incident · No injuries · Incident investigation · Final report · Oct 18, 2010 · N938SW · Minor damage
  > The overextension of the main cabin door due to difficulty opening the door because the power-assist motor cable was lodged within the main cabin door assembly.
- [NTSB WPR10LA216](https://openairdocs.org/ntsb/WPR10LA216.md): Cessna 210 · Show Low, AZ · Accident · No injuries · Limited investigation · Final report · Apr 11, 2010 · N9527T · Substantial damage
  > Inadequate clearance between a landing gear brake system line and airframe components, which precluded gear extension and resulted in an intentional gear-up landing.
- [NTSB WPR10LA004](https://openairdocs.org/ntsb/WPR10LA004.md): Cessna 172A · Payson, AZ · Accident · No injuries · Limited investigation · Final report · Oct 3, 2009 · N7810T · Substantial damage
  > The stress corrosion cracking of the nose gear landing fork, which resulted in the fork's failure during landing.
- [NTSB WPR09LA253](https://openairdocs.org/ntsb/WPR09LA253.md): Gauchat Safari · Rock Springs, AZ · Accident · 2 fatal · Limited investigation · Final report · May 22, 2009 · N147MD · Substantial damage
  > The separation of the main rotor head during cruise flight as a result of cyclic fatigue of the main rotor head spindle. The fatigue crack was due to an inadequate manufacturing process.
- [NTSB WPR09LA168](https://openairdocs.org/ntsb/WPR09LA168.md): Cessna 182Q · Sedona, AZ · Accident · No injuries · Limited investigation · Final report · Mar 28, 2009 · N97467 · Substantial damage
  > The pilot's failure to achieve the proper touchdown point during a full-stop landing attempt. Contributing to the accident were the pilot's failure to ensure that the aircraft was properly configured for landing, his not initiating a go-around, and a…
- [NTSB WPR09LA075](https://openairdocs.org/ntsb/WPR09LA075.md): Czech Aircraft Works Sport Cruiser · Casa Grande, AZ · Accident · No injuries · Limited investigation · Final report · Jan 6, 2009 · N797BS · Substantial damage
  > The pilot's failure to ensure that the canopy was latched prior to takeoff. Contributing to the accident was the inadequate guidance in the Pilot Operating Handbook regarding canopy procedures.
- [NTSB WPR09LA029](https://openairdocs.org/ntsb/WPR09LA029.md): Cessna 421C · Mesa, AZ · Accident · No injuries · Limited investigation · Final report · Oct 30, 2008 · N421PC · Substantial damage
  > The failure of the hydraulic landing gear extension systems due to a ruptured line.
- [NTSB WPR09CA017](https://openairdocs.org/ntsb/WPR09CA017.md): Piper L-4 · Buckeye, AZ · Accident · No injuries · Data collection · Final report · Oct 19, 2008 · N87117 · 2 aircraft · Substantial damage
  > Another airplanes total loss of wheel brakes while taxing which resulted in the pilot of the other aircraft colliding with a standing aircraft. Contributing to the accident was the other airplanes low brake hydraulic fluid.
- [NTSB LAX08LA269](https://openairdocs.org/ntsb/LAX08LA269.md): Cessna TU206F · Glendale, AZ · Accident · No injuries · Limited investigation · Final report · Aug 19, 2008 · N62DB · Substantial damage
  > A loose fuel line fitting that resulted in a partial loss of engine power during the initial takeoff climb. Contributing to the accident was inadequate maintenance installation of the fitting.

## 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" = 'AZ' AND c."eventCountry" = 'USA'
  AND c."mKey" IN (SELECT s.case_mkey FROM 'https://openairdocs.org/data/latest/ntsb_events.parquet' s WHERE s."tier2Number" = '330' 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/330/sequence?state=AZ

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