NTSB investigations, AZ
68 cases where the sequence of events included Loss of engine power (partial).
Cases per year
| 2008 | 4 |
|---|---|
| 2009 | 4 |
| 2010 | 3 |
| 2011 | 3 |
| 2012 | 1 |
| 2013 | 6 |
| 2014 | 5 |
| 2015 | 4 |
| 2016 | 6 |
| 2017 | 5 |
| 2018 | 4 |
| 2019 | 3 |
| 2020 | 1 |
| 2021 | 4 |
| 2022 | 4 |
| 2023 | 2 |
| 2024 | 1 |
| 2025 | 4 |
| 2026 | 4 |
Where
Open the mapLatest cases
Query with SQL
duckdb -csv -c "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\" = '342' 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"Prints the whole list as CSV. It reads the release’s Parquet files over HTTPS, so there’s nothing to download first. Install DuckDB to run it.
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" = '342' 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
Run it at the DuckDB prompt, or in any tool that reads Parquet over HTTPS. More ways to query the release are on Use the data.
NTSB WPR26LA190Accident · No injuriesClass 3 · LimitedPreliminary reportPiper PA-28-140 · Chandler, AZOn May 14, 2026, at 2043 mountain standard time, a Piper PA-28, N8714N, was substantially damaged when it was involved in an accident near Chandler, Arizona. The pilot sustained minor injuries. The airplane was operated as a Title 14 Code of Federal…NTSB WPR26LA197Accident · Serious injuriesClass 3 · LimitedPreliminary reportMooney M20J · Lake Havasu City, AZOn May 14, 2026, at 1523, a Mooney M20J, N4665H, was substantially damaged when it was involved in an accident near Lake Havasu City, Arizona. The pilot and two passengers sustained serious injuries. The airplane was operated under Title 14 Code of Federal…NTSB WPR26FA119Accident · Serious injuriesClass 3 · FieldPreliminary reportPiper PA-28-140 · Phoenix, AZOn March 4, 2026, about 0721 mountain standard time, a Piper PA-28-140, N7744T, was substantially damaged when it was involved in an accident near Phoenix, Arizona. The flight instructor was seriously injured, and the student pilot and one person on the…NTSB ANC26LA016Accident · Minor injuriesClass 3 · LimitedPreliminary reportCessna 177B · Rocky Junction, AZOn February 21, 2026, 1746 Mountain standard time, a Cessna 177B airplane, N12984, was substantially damaged when it was involved in an accident near Rocky Junction, Arizona. The pilot and passenger sustain minor injuries. The airplane was operated as a Title…NTSB WPR26LA056Accident · No injuriesClass 4 · LimitedFinal reportRotorway Exec · Lake Havasu City, AZThe pilot’s improper securing hardware installation, which resulted in a loss of throttle control and a loss of engine power.NTSB WPR26LA045Accident · No injuriesClass 3 · LimitedPreliminary reportPiper PA-28-181 · Mesa, AZOn November 17, 2025, about 0830 mountain standard time, a Piper PA 28-181, N4402N, was substantially damaged when it was involved in an accident near Mesa, Arizona. The flight instructor and student pilot were not injured. The airplane was operated as a…NTSB WPR26LA022Accident · Minor injuriesClass 3 · LimitedPreliminary reportFlight Design Ctsw · Casa Grande, AZOn October 17, 2025, about 13:20 mountain standard time, a Flight Design GMBH CTSW, N531CT, was substantially damaged when it was involved in an accident near Casa Grande, Arizona. The pilot received minor injuries. The airplane was operated as a Title 14…NTSB WPR25LA084Accident · No injuriesClass 3 · LimitedPreliminary reportCessna P210N · Prescott, AZOn January 18, 2025, about 1210 Mountain standard time, a Cessna P210N, N4626K, sustained substantial damage when it was involved in an accident near Prescott, Arizona. The flight instructor and student pilot were not injured. The airplane was operated as a…NTSB WPR24LA159Accident · No injuriesClass 3 · LimitedFinal reportNanchang China CJ-6A · Peoria, AZThe partial loss of engine power during cruise flight due to the improper installation of the master connecting rod main bushing set screws, which backed off and allowed the main bushing to shift, resulting in scoring damage on the crankshaft that led to the…NTSB WPR24FA054Accident · 1 fatalClass 3 · FieldFinal reportBeech A36 · Topock, AZThe 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 WPR23LA306Accident · No injuriesClass 3 · LimitedFinal reportBoeing CH-46E · Springerville, AZThe flight crew’s misidentification of a No. 2 torque sensing system signal conditioner malfunction when both engines were performing normally, which resulted in their attempt to execute a single-engine steep approach and landing without sufficient engine…NTSB WPR23LA031Accident · Serious injuriesClass 3 · LimitedFinal reportCessna 150G · Star Valley, AZThe failure of the No. 1 cylinder exhaust or intake valve which resulted in the partial loss of engine power and subsequent impact with terrain.NTSB WPR22FA188Accident · 2 fatalClass 3 · FieldFinal reportCessna 172F · Show Low, AZThe pilot’s improper leaning of the engine during an extended period of time, which caused an exhaust valve to become stuck and led to the partial loss of engine power during the accident flight. Contributing to the accident was the pilot’s decision to…NTSB WPR22LA152Accident · Serious injuriesClass 3 · LimitedFinal reportAdams Balloons A55S · Safford, AZThe pilot’s decision to continue the balloon’s fast approach to an unsuitable confined landing site, which resulted in a collision with powerline wires.NTSB WPR22LA130Accident · No injuriesClass 4 · LimitedFinal reportParadise Aircraft USA P1 · Glendale, AZA total loss of engine power due to fuel exhaustion. Contributing to the accident was the pilot's inadequate preflight fuel inspection.NTSB WPR22LA035Accident · Minor injuriesClass 3 · LimitedFinal reportSonex Waiex B · Laveen Village, AZFailure of the rocker swivel assembly due to either wear or corrosion, which resulted in a loss of engine power.NTSB WPR21FA340Accident · 1 fatalClass 3 · FieldFinal reportCessna 177RG · Lake Havasu City, AZA partial loss of engine power during the airplane's initial climb due to wear of internal engine components, which prevented the engine from developing full-rated power and resulted in a loss of altitude.NTSB WPR21LA301Accident · No injuriesClass 3 · LimitedFinal reportPiper PA-28-140 · Amado, AZThe inflight separation of a section of a propeller blade due to a fatigue crack, which resulted in a forced landing.NTSB WPR21FA175Accident · 2 fatalClass 3 · FieldFinal reportSwearingen SA226-T(B) · Winslow, AZThe loss of engine power to the right engine for reasons that could not be determined. Contributing to the accident was the pilot’s failure to maintain control of the airplane.NTSB WPR21LA020Accident · No injuriesClass 3 · LimitedFinal reportPiper PA-28-180 · Show Low, AZA partial loss of engine power due to the failure of the No. 4 cylinder exhaust valve.NTSB WPR19LA167Accident · Serious injuriesClass 3 · LimitedFinal reportMooney M20V · Phoenix, AZThe partial loss of engine power during cruise flight for reasons that could not be determined with the available evidence.NTSB WPR19LA140Accident · No injuriesClass 3 · LimitedFinal reportCessna 172 · Red Rock, AZA partial loss of engine power for reasons that could not be determined based on the available information.NTSB WPR19LA128Accident · No injuriesClass 3 · LimitedFinal reportBeech 35 · Sedona, AZThe 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 WPR18LA250Accident · No injuriesLimited investigationFinal reportStoddard Hamilton Glasair Super IIS · Yuma, AZA total loss of engine power as a result of the detachment of the throttle linkage from the throttle arm of the fuel injector servo due to an insufficiently tightened and secured bolt and the subsequent inadequate maintenance inspection.NTSB WPR18LA140Accident · No injuriesClass 3 · LimitedFinal reportBell OH 58C · Yuma, AZA partial loss of engine power during an aerial application flight due to thermal damage to the 1st stage gas producer turbine nozzle and an irregular fuel spray pattern due to carbon buildup of the fuel nozzle. Contributing to the accident was maintenance…NTSB ANC18LA034Accident · Serious injuriesClass 3 · LimitedFinal reportGrumman TBM-3 · Fort Apache, AZA partial loss of engine power for reasons that could not be determined based on the available information.NTSB WPR18FA119Accident · 6 fatalField investigationFinal reportPiper PA 24-260 · Scottsdale, AZThe flight instructor's failure to maintain airplane control during the initial climb as a result of the airplane being loaded above its maximum gross weight and beyond its aft center of gravity limits. Contributing to the accident was a degraded engine power…NTSB GAA18CA059Accident · No injuriesData collectionFinal reportMooney M20 · Tucson, AZThe pilot’s inadequate preflight and in-flight fuel management, which resulted in an intermittent loss of engine power due to fuel starvation.NTSB WPR18LA006Accident · Serious injuriesClass 3 · LimitedFinal reportNanchang China CJ 6 · Buckeye, AZThe failure of the fuel pump’s diaphragm which resulted in fuel system contamination from air and or oil and caused the engine to lose power.NTSB WPR17LA175Accident · Serious injuriesLimited investigationFinal reportGrumman AA1 · Phoenix, AZThe partial loss of engine power during initial climb due to the No. 3 cylinder exhaust valve becoming stuck open due to deposit buildup in the exhaust valve stem and guide and the pilot’s exceedance of the airplane’s critical angle of attack while attempting…NTSB WPR17LA148Accident · No injuriesLimited investigationFinal reportCharles J Norris Arion Lightning · New River, AZA partial loss of engine power for reasons that could not be determined due to a lack of available evidence.NTSB WPR17LA093Accident · Minor injuriesLimited investigationFinal reportSchweizer 269C · Coolidge, AZA partial loss of engine power due to separation of the throttle cable.NTSB WPR17LA050Accident · No injuriesClass 3 · LimitedFinal reportDiamond Aircraft Ind DA 40 NG · Kingman, AZThe loss of engine oil pressure during cruise flight, which resulted in partial loss of engine power and necessitated a forced landing. The loss of oil pressure was the result of a failed engine piston, likely initiated by foreign object damage, which…NTSB WPR17LA004Accident · Serious injuriesClass 3 · LimitedFinal reportRockwell International 112A · Phoenix, AZA catastrophic engine failure due to lack of lubrication due to the absence of 2 piston cooling nozzles that backed out of their respective threaded bores, which resulted in a forced landing on unsuitable terrain.NTSB WPR16LA106Accident · No injuriesLimited investigationFinal reportBoeing B75N1 · Winslow, AZThe partial loss of engine power during takeoff initial climb in high-density altitude conditions for reasons that could not be determined because a postaccident examination of the airplane and engine revealed no anomalies.NTSB WPR16FA102Accident · 1 fatalField investigationFinal reportBeech G35 · Surprise, AZThe mechanic's failure to properly secure the bolt connecting the throttle cable to the carburetor during the installation of the carburetor, which resulted in a loss of engine power.NTSB WPR16LA088Accident · No injuriesLimited investigationFinal reportThomas D. Parkes Lancair ES · Prescott, AZA partial loss of engine power due to an over-temperature event, which thermally damaged the blade tips of the turbocharger wheel and resulted in a slowing or stoppage in the rotation of the turbocharger.NTSB WPR16LA079Accident · No injuriesLimited investigationFinal reportPiper PA 22-150 · Fountain Hills, AZA partial loss of engine power for reasons that could not be determined because postaccident examination did not reveal any anomalies that would have precluded normal operation.NTSB WPR16LA033Accident · No injuriesClass 3 · LimitedFinal reportPiper PA 28-140 · Wickenburg, AZA partial loss of engine power due to a separation of the mixture control cable clamp, which was either not installed or secured correctly during maintenance.NTSB WPR15LA254Accident · Minor injuriesLimited investigationFinal reportRaudenbush Ernie Lancair Super ES · Winkelman, AZA partial loss of engine power for reasons that could not be determined because postaccident examination of the engine revealed no anomalies.NTSB WPR15LA139Accident · No injuriesLimited investigationFinal reportBeech H35 · Tucson, AZA partial loss of engine power during initial takeoff climb for reasons that could not be determined because postaccident examination revealed no evidence of a mechanical anomaly that would have precluded normal operation.NTSB WPR15LA131Accident · Serious injuriesLimited investigationFinal reportMccurry Charles P F 1 Rocket · Sedona, AZThe partial loss of engine power during final approach for reasons that could not be determined during postaccident examination of the engine.NTSB WPR15LA015Accident · Minor injuriesLimited investigationFinal reportPiper PA28 151 · Bullhead City, AZA partial loss of engine power during the initial climb for reasons that could not be determined because postaccident examination of the airframe and engine did not reveal any anomalies that would have precluded normal operation.NTSB WPR14LA374Accident · No injuriesLimited investigationFinal reportBell 206 · Tombstone, AZA partial loss of engine power during cruise flight due to loose “B” nut fittings and a bent tube as a result of maintenance personnel’s inadequate inspection of the nuts during the most recent inspection.NTSB WPR14LA242Accident · No injuriesLimited investigationFinal reportAdams Dragonfly · Mesa, AZA partial loss of engine power due to a reduction in the No. 3 cylinder’s compression as a result of the exhaust valve not having consistent uniform contact with the cylinder head valve seat.NTSB WPR14LA199Accident · No injuriesLimited investigationFinal reportBeech H35 · Parker, AZThe improperly attached fuel line and cracked fuel diaphragm due to unknown personnel’s inadequate maintenance, which resulted in the loss of engine power during cruise flight and the subsequent forced landing onto rough terrain.NTSB WPR14FA186Accident · 1 fatalField investigationFinal reportCessna T207A · Page, AZThe pilot’s inability to maintain aircraft control due to a partial loss of engine power and an encounter with downdrafts and gusting crosswinds while on final approach to the runway. The reason for the partial loss of engine power could not be determined…NTSB WPR14LA046Accident · No injuriesLimited investigationFinal reportRovey Jason H RV-8 · Wickenburg, AZThe fatigue failure of a propeller pitch change pin due to excessive shot peening of the pin’s surface during the manufacturing process.NTSB WPR14LA027Accident · Serious injuriesLimited investigationFinal reportPiper PA-23-150 · Tucson, AZThe pilot’s failure to maintain airplane control during takeoff following the loss of left engine power due to the failure of the left engine-driven fuel pump’s diaphragm. Contributing to the accident was the pilot’s failure to use the electric fuel boost…NTSB WPR13LA390Accident · Serious injuriesLimited investigationFinal reportBell Helicopter Textron 206L-1 · Payson, AZA partial loss of engine power due to an overtemperature event that thermally damaged the turbine blades and vanes, which resulted in a hard landing.