# NTSB investigations, AZ: Powerplant sys/comp malf/fail

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 WPR26LA236](https://openairdocs.org/ntsb/WPR26LA236.md): Beech S35 · Dome, AZ · Accident · No injuries · Class 3 · Limited · Preliminary report · Jun 25, 2026 · N6040F · Substantial damage
  > On June 25, 2026, about 1125 mountain standard time, a Beech S35, N6040F, sustained substantial damage when it was involved in an accident near Dome, Arizona. The pilot and three passengers were not injured. The airplane was operated as a Title 14 Code of…
- [NTSB WPR25LA070](https://openairdocs.org/ntsb/WPR25LA070.md): Vans RV-7A · Gila Bend, AZ · Accident · Minor injuries · Class 3 · Limited · Final report · Dec 22, 2024 · N1FB · Substantial damage
  > A disconnection of the mixture control linkage during flight, which resulted in fuel starvation and a total loss of engine power. Contributing was the inadequate inspection of the mixture control arm attachment hardware.
- [NTSB WPR24LA076](https://openairdocs.org/ntsb/WPR24LA076.md): Piper PA-28-181 · Colorado City, AZ · Accident · No injuries · Class 3 · Limited · Final report · Jan 13, 2024 · N2886X · Substantial damage
  > The loss of engine power due to the failure of the No. 2 piston pin plug, which resulted in oil starvation and subsequent failure of the No. 3 connecting rod. Contributing to the accident was the inadequate engine inspections by maintenance personnel.
- [NTSB WPR24FA054](https://openairdocs.org/ntsb/WPR24FA054.md): Beech A36 · Topock, AZ · Accident · 1 fatal · Class 3 · Field · Final report · Dec 10, 2023 · N4171S · Substantial damage
  > The failure of the No. 4 connecting rod due to oil starvation, which resulted in a loss of engine power, inflight fire, and a subsequent off-airport emergency landing on rough desert terrain. Contributing to the accident was the pilot’s decision to attempt a…
- [NTSB WPR24FA053](https://openairdocs.org/ntsb/WPR24FA053.md): Beauchamp Norm Kitfox · Eloy, AZ · Accident · 1 fatal · Class 3 · Field · Final report · Dec 8, 2023 · N66180 · Destroyed
  > The separation of a propeller blade during the initial climb due to insufficient blade retention forces. Contributing to the accident was the propeller blade retention design, manufacturing defects that prevented the propeller from achieving adequate grip…
- [NTSB WPR23LA199](https://openairdocs.org/ntsb/WPR23LA199.md): Cessna 172S · Casa Grande, AZ · Accident · No injuries · Class 3 · Limited · Final report · May 24, 2023 · N60372 · Substantial damage
  > An in-flight separation of the throttle linkage, which resulted in a loss of throttle control. Contributing to the accident was maintenance personnel’s failure to follow the maintenance manual inspection procedure for the throttle cable assembly.
- [NTSB WPR22LA081](https://openairdocs.org/ntsb/WPR22LA081.md): Piper PA-28 · Scottsdale, AZ · Accident · Minor injuries · Class 3 · Limited · Final report · Jan 18, 2022 · N5276W · Substantial damage
  > A loss of engine power due to oil exhaustion.
- [NTSB WPR21LA301](https://openairdocs.org/ntsb/WPR21LA301.md): Piper PA-28-140 · Amado, AZ · Accident · No injuries · Class 3 · Limited · Final report · Aug 2, 2021 · N44245 · Substantial damage
  > The inflight separation of a section of a propeller blade due to a fatigue crack, which resulted in a forced landing.
- [NTSB WPR20LA144](https://openairdocs.org/ntsb/WPR20LA144.md): Mooney M20J · Phoenix, AZ · Accident · No injuries · Class 3 · Limited · Final report · May 13, 2020 · N201HH · Substantial damage
  > A total loss of engine power due to oil starvation for reasons that could not be determined due to a lack of available evidence, which resulted in impact with terrain during a subsequent forced landing.
- [NTSB WPR19LA218](https://openairdocs.org/ntsb/WPR19LA218.md): Extra EA300 · Mesa, AZ · Accident · No injuries · Class 3 · Limited · Final report · Aug 14, 2019 · N19AM · Substantial damage
  > The flight instructor’s operation of the airplane outside of the manufacturer’s limitations, which resulted in fuel starvation and a partial loss of engine power. Contributing to the accident was an inoperative electric fuel boost pump.
- [NTSB WPR19LA128](https://openairdocs.org/ntsb/WPR19LA128.md): Beech 35 · Sedona, AZ · Accident · No injuries · Class 3 · Limited · Final report · May 1, 2019 · N6864Q · Substantial damage
  > The partial loss of engine power due to deteriorated O-rings in the throttle metering assembly. Contributing to the accident was non-compliance with the manufacturer's recommended throttle metering assembly overhaul schedule.
- [NTSB WPR18LA248](https://openairdocs.org/ntsb/WPR18LA248.md): Piper PA28 · Tat Momoli, AZ · Accident · No injuries · Class 3 · Limited · Final report · Aug 29, 2018 · N4139A · Substantial damage
  > A total loss of engine power due to a fatigue crack in the connecting rod bushing end.
- [NTSB WPR18LA174](https://openairdocs.org/ntsb/WPR18LA174.md): Cirrus Design SR22 · Aguila, AZ · Accident · Serious injuries · Class 3 · Limited · Final report · Jun 19, 2018 · N764CT · Destroyed
  > A total loss of engine power due to pre-ignition/detonation for reasons that could not be determined based on available information.
- [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 WPR18LA030](https://openairdocs.org/ntsb/WPR18LA030.md): Vanderark RV-10 · Sun Lakes, AZ · Accident · No injuries · Limited investigation · Final report · Nov 12, 2017 · N917VA · Substantial damage
  > The fatigue fractures of the upper and lower alternator attachment bolts, which decreased the common drive belt tension and resulted in the subsequent in-flight separation of an alternator drive belt, the overheating of the engine, and the subsequent total…
- [NTSB WPR17LA144](https://openairdocs.org/ntsb/WPR17LA144.md): Cessna U206F · Page, AZ · Accident · No injuries · Limited investigation · Final report · Jun 23, 2017 · N71001 · Substantial damage
  > The failure of the throttle control cable due to fatigue and maintenance personnel’s failure to replace the cable at the last engine overhaul, which resulted in the pilots’ inability to control engine power and led to a precautionary landing during which the…
- [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 WPR17LA038](https://openairdocs.org/ntsb/WPR17LA038.md): Cessna 182A · Safford, AZ · Accident · No injuries · Limited investigation · Final report · Nov 24, 2016 · N6077B · Substantial damage
  > The total loss of engine power due to the failure of the No. 5 piston, piston pin, or connecting rod assembly for reasons that could not be determined due to the severity of the post fracture damage.
- [NTSB WPR13LA266](https://openairdocs.org/ntsb/WPR13LA266.md): Eurocopter EC 130 B4 · Grand Canyon, AZ · Accident · No injuries · Limited investigation · Final report · Jun 8, 2013 · N130PH · Substantial damage
  > A loss of throttle control movement during a practice autorotation that was planned to terminate with a power recovery for reasons that could not be determined because postaccident examination did not reveal any anomalies that would have precluded normal…
- [NTSB WPR13LA043](https://openairdocs.org/ntsb/WPR13LA043.md): Cirrus SR22 · Show Low, AZ · Accident · Minor injuries · Limited investigation · Final report · Nov 16, 2012 · N800RW · Substantial damage
  > The fatigue failure of an improperly installed nipple in the oil system of a supplemental type certificate-installed supercharger, which resulted in a complete loss of engine oil during cruise climb.
- [NTSB WPR12LA423](https://openairdocs.org/ntsb/WPR12LA423.md): Barney Stardustrer SA-100 · Chandler, AZ · Accident · No injuries · Limited investigation · Final report · Sep 17, 2012 · N1356Y · Substantial damage
  > A loss of engine power as a result of fuel exhaustion due to a fuel line failure. Contributing to the accident was the pilot’s failure to adhere to the maintenance inspection criteria for the airplane.
- [NTSB WPR11LA167](https://openairdocs.org/ntsb/WPR11LA167.md): Rotorway A600 · Chandler, AZ · Accident · No injuries · Limited investigation · Final report · Mar 15, 2011 · N602RW · Substantial damage
  > A design modification that changed the fasteners and components used to attach the main rotor drive pulley to the engine, which resulted in fatigue failure of those fasteners and a complete loss of power to the main rotor.
- [NTSB WPR10LA413](https://openairdocs.org/ntsb/WPR10LA413.md): Grumman Acft ENG Cor-Schweizer G-164B · Buckeye, AZ · Accident · Serious injuries · Limited investigation · Final report · Aug 19, 2010 · N6607Q · Substantial damage
  > An increase in engine rpm and vibration, which resulted in an aborted takeoff and runway excursion. The reason for the increased engine rpm and vibration could not be determined because of postaccident fire damage.
- [NTSB WPR10LA128](https://openairdocs.org/ntsb/WPR10LA128.md): Piper PA-32R-301T · Dolan Springs, AZ · Accident · No injuries · Limited investigation · Final report · Feb 4, 2010 · N1060X · Substantial damage
  > The fuel flow divider inlet line nut coming loose during cruise flight, resulting in a fuel leak and in-flight fire. The root cause of the loose B-nut fitting could not be determined. Contributing to the accident was the pilot's decision to fly the airplane…
- [NTSB WPR09LA196](https://openairdocs.org/ntsb/WPR09LA196.md): Cessna 152 · Glendale, AZ · Accident · Minor injuries · Limited investigation · Final report · Apr 15, 2009 · N6285M · Substantial damage
  > A loss of engine power due to the failure of both magnetos resulting from an improper maintenance repair by maintenance personnel.
- [NTSB WPR09LA153](https://openairdocs.org/ntsb/WPR09LA153.md): Howes RV-6 · Paulden, AZ · Accident · 1 fatal · Limited investigation · Final report · Mar 19, 2009 · N6383W · Substantial damage
  > A total loss of engine power due to oil starvation as a result of a leak from the inadequate weld repair of a high-pressure oil line. Also causal was the pilot's failure to maintain adequate airspeed while maneuvering that resulted in a stall during an…
- [NTSB WPR09IA140](https://openairdocs.org/ntsb/WPR09IA140.md): Eurocopter AS 350 B2 · Peach Springs, AZ · Incident · No injuries · Incident investigation · Final report · Mar 3, 2009 · N197AE · Minor damage
  > A loss of engine power due to the failure of the number three engine bearing as a result of oil starvation due to coked oil obstructing the oil passages.
- [NTSB LAX08LA153](https://openairdocs.org/ntsb/LAX08LA153.md): Cessna P210N · Peach Springs, AZ · Accident · No injuries · Limited investigation · Final report · May 23, 2008 · N4753K · Substantial damage
  > A loss of engine power due to induced catastrophic internal failure of the engine as a result of the displacement and rotation of the number 2 main bearing that resulted in a fatigue fracture of the crankshaft.
- [NTSB LAX08LA098](https://openairdocs.org/ntsb/LAX08LA098.md): North American T-28C · Kingman, AZ · Accident · Minor injuries · Limited investigation · Final report · Apr 11, 2008 · N9022N · Substantial damage
  > A total loss of engine power during cruise flight due to an undetermined catastrophic internal engine failure.
- [NTSB LAX08LA064](https://openairdocs.org/ntsb/LAX08LA064.md): Cessna 210 · Willcox, AZ · Accident · Minor injuries · Limited investigation · Final report · Feb 23, 2008 · N7337E · Substantial damage
  > A loss of engine power while on final approach due to multiple grounding faults in the ignition system as a result of poor ignition system maintenance.

## 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" = '340' 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/340/sequence?state=AZ

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