# Final NTSB investigations: 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.

Page 3 of 13 · 604 cases

## Cases, newest first

- [NTSB CEN22LA330](https://openairdocs.org/ntsb/CEN22LA330.md): Beech N35 · Wardsville, MO · Accident · No injuries · Class 3 · Limited · Final report · Jul 20, 2022 · N1228Z · Substantial damage
  > Engine failure due to oil starvation resulting from an oil leak at the improperly installed aftermarket oil filter adapter.
- [NTSB CEN22FA317](https://openairdocs.org/ntsb/CEN22FA317.md): Bell UH-1H · Chapelle, NM · Accident · 4 fatal · Class 3 · Field · Final report · Jul 17, 2022 · N911SZ · Destroyed
  > The total loss of engine power due to the fatigue failure of the starter-generator input (zerol) gear which failed due to poor maintenance. Contributing to the accident was the unsuccessful autorotation complicated by the setting sun and high density altitude.
- [NTSB ERA22LA308](https://openairdocs.org/ntsb/ERA22LA308.md): Cessna 150F · Pittstown, NJ · Accident · Minor injuries · Class 3 · Limited · Final report · Jul 13, 2022 · N8761G · Substantial damage
  > The partial loss of engine power due to a stuck exhaust valve.
- [NTSB CEN22LA309](https://openairdocs.org/ntsb/CEN22LA309.md): Cessna 172M · Friend, NE · Accident · No injuries · Class 3 · Limited · Final report · Jul 8, 2022 · N5177H · Substantial damage
  > A loss of engine power due to a stuck valve.
- [NTSB ERA22LA297](https://openairdocs.org/ntsb/ERA22LA297.md): Grumman G-164A · Hopewell Township, NJ · Accident · Serious injuries · Class 3 · Limited · Final report · Jul 2, 2022 · N8923H · Substantial damage
  > A partial loss of engine power while maneuvering at low altitude due to a failure of the airplane’s supercharger.
- [NTSB ERA22LA277](https://openairdocs.org/ntsb/ERA22LA277.md): Hawker Hunter · Wilmington, NC · Accident · Serious injuries · Class 3 · Limited · Final report · Jun 20, 2022 · N337AX · Substantial damage
  > A bearing failure in the high-pressure fuel pump, which resulted in a partial loss of engine power.
- [NTSB ANC22LA049](https://openairdocs.org/ntsb/ANC22LA049.md): Piper PA-20 · Palmer, AK · Accident · No injuries · Class 4 · Limited · Final report · Jun 20, 2022 · N7048K · Substantial damage
  > The loss of engine power due to carburetor icing and the pilot’s failure to utilize carburetor heat.
- [NTSB CEN22LA256](https://openairdocs.org/ntsb/CEN22LA256.md): Bellanca 17-30A · Madison, MS · Accident · No injuries · Class 3 · Limited · Final report · Jun 16, 2022 · N39880 · Substantial damage
  > The failure of a muffler weld due to inadequate maintenance, which resulted in a fire.
- [NTSB CEN22LA253](https://openairdocs.org/ntsb/CEN22LA253.md): Cessna T206H · Austin, TX · Accident · Serious injuries · Class 3 · Limited · Final report · Jun 16, 2022 · N52854 · Substantial damage
  > A total loss of engine power due to an engine fire that resulted from failure of the turbocharger exhaust clamp, which allowed hot exhaust gases to damage other vital engine components.
- [NTSB ERA22FA261](https://openairdocs.org/ntsb/ERA22FA261.md): Piper PA-28RT-201 · Panama City, FL · Accident · 2 fatal · Class 3 · Field · Final report · Jun 6, 2022 · N160LL · Substantial damage
  > Maintenance personnel’s failure to follow the avionics installation guidance for the oil pressure sensor, which resulted in the high-cycle fatigue failure of an line, oil starvation, and the subsequent loss of engine power. Contributing to the accident was…
- [NTSB CEN22LA234](https://openairdocs.org/ntsb/CEN22LA234.md): Robinson Helicopter R44 · Henderson, TX · Accident · Serious injuries · Class 3 · Limited · Final report · Jun 6, 2022 · N94WC · Substantial damage
  > The partial loss of engine power in a hover due to a stuck exhaust valve.
- [NTSB CEN22LA233](https://openairdocs.org/ntsb/CEN22LA233.md): Beech A36 · Amarillo, TX · Accident · No injuries · Class 3 · Limited · Final report · Jun 4, 2022 · N9087S · Substantial damage
  > The loss of engine power due to a leak in the fuel control assembly. Contributing to the accident was the inadequate maintenance of the fuel control assembly.
- [NTSB CEN22LA227](https://openairdocs.org/ntsb/CEN22LA227.md): Piper PA-28RT-201T · Morgan, TX · Accident · No injuries · Class 3 · Limited · Final report · May 29, 2022 · N2148J · Substantial damage
  > A partial loss of engine power due to a corrosion-related fatigue crack of the No. 3 cylinder barrel.
- [NTSB WPR22LA177](https://openairdocs.org/ntsb/WPR22LA177.md): Piper PA-12 · Enterprise, OR · Accident · No injuries · Class 3 · Limited · Final report · May 14, 2022 · N3960M · Substantial damage
  > The inadequate maintenance and inspection of the crankshaft expansion plug, which resulted in the separation of the expansion plug from the crankshaft and the subsequent loss of oil and windshield obstruction during departure.
- [NTSB ERA22LA224](https://openairdocs.org/ntsb/ERA22LA224.md): Air Tractor AT-301 · Somerville, TN · Accident · Minor injuries · Class 3 · Limited · Final report · May 11, 2022 · N31580 · Substantial damage
  > The inadequate inspection and maintenance of the engine exhaust system, which resulted in an in-flight fire.
- [NTSB ERA22LA268](https://openairdocs.org/ntsb/ERA22LA268.md): Wingren Norman Escapade · Brasstown, NC · Accident · No injuries · Class 3 · Limited · Final report · May 9, 2022 · N86RD · Substantial damage
  > The failure of the engine gearbox drive flange, which resulted in a nose gear collapse during the subsequent precautionary landing in tall grass.
- [NTSB CEN22LA128](https://openairdocs.org/ntsb/CEN22LA128.md): Ryan L17 · Livingston, IL · Accident · No injuries · Class 3 · Limited · Final report · Feb 20, 2022 · N5042K · Substantial damage
  > A total loss of engine power due to fuel injection system contamination from an unknown source.
- [NTSB CEN22LA123](https://openairdocs.org/ntsb/CEN22LA123.md): Pitts S-1T · Spring, TX · Accident · Serious injuries · Class 3 · Limited · Final report · Feb 17, 2022 · N731FL · Substantial damage
  > The failure of maintenance personnel to properly connect the throttle cable, which led to the pilot’s inability to control engine power during the initial climb. Contributing to the accident was the pilot’s misjudgment of the headwind during the forced…
- [NTSB DCA22FA082](https://openairdocs.org/ntsb/DCA22FA082.md): Joby Aero JAS4-2 · Jolon, CA · Accident · No injuries · Class 3 · Field · Final report · Feb 16, 2022 · N542AJ · Substantial damage
  > The separation of a propeller blade during expansion flight testing that resulted in cascading effects to include the separation of multiple propulsion motor/propeller assemblies and the loss of remote pilot control of the aircraft. Contributing to the…
- [NTSB CEN22LA117](https://openairdocs.org/ntsb/CEN22LA117.md): Cirrus Design SR22T · Lincoln, NE · Accident · No injuries · Class 3 · Limited · Final report · Feb 11, 2022 · N317KJ · Substantial damage
  > The pilot’s decision to continue the flight with abnormal engine indications and the subsequent failure of the No. 5 cylinder connecting rod for unknown reasons.
- [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 ERA22LA109](https://openairdocs.org/ntsb/ERA22LA109.md): Cirrus Design SR22 · Lexington, SC · Accident · No injuries · Class 3 · Limited · Final report · Jan 13, 2022 · N879CD · Substantial damage
  > A loss of engine power due to a shift of the No. 3 main journal bearing, which resulted in blocked oil ports that restricted oil to the engine’s internal components and a subsequent catastrophic engine failure.
- [NTSB CEN22LA085](https://openairdocs.org/ntsb/CEN22LA085.md): Beech A100 · West Helena, AR · Accident · No injuries · Class 3 · Limited · Final report · Dec 28, 2021 · N93GT · Substantial damage
  > The malfunction of the propeller autofeather system after takeoff for undetermined reasons, which resulted in both propellers going into feather and a hard landing.
- [NTSB ERA22LA071](https://openairdocs.org/ntsb/ERA22LA071.md): Cessna 210 · Brent, AL · Accident · Minor injuries · Class 3 · Limited · Final report · Nov 21, 2021 · N5779J · Substantial damage
  > The inadequate maintenance of the oil filter adapter, which resulted in in an engine oil leak and subsequent loss engine oil pressure, and the subsequent off-airport landing.
- [NTSB ERA22LA011](https://openairdocs.org/ntsb/ERA22LA011.md): Flight Design Ctls · Greenville, SC · Accident · Minor injuries · Class 3 · Limited · Final report · Oct 10, 2021 · N121YT · Substantial damage
  > A total loss of engine power resulting from the in-flight disconnection of oil hoses from the oil thermostat.
- [NTSB ENG22LA002](https://openairdocs.org/ntsb/ENG22LA002.md): Airbus A320-271N · Atlantic City, NJ · Incident · Minor injuries · Class 3 · Limited · Final report · Oct 2, 2021 · N922NK · Minor damage
  > The ingestion of a bird into the right engine during the takeoff roll caused a fan blade to fracture near the blade platform resulting in high fan blade off loads and engine vibrations sufficient to result in an eventual failure of a fuel tube in the right…
- [NTSB CEN21LA472](https://openairdocs.org/ntsb/CEN21LA472.md): Cessna T210N · East Sparta, OH · Accident · No injuries · Class 3 · Limited · Final report · Sep 28, 2021 · N1925U · Substantial damage
  > A total loss of engine power due to a fatigue failure of the No. 2 cylinder exhaust valve.
- [NTSB ERA21LA356](https://openairdocs.org/ntsb/ERA21LA356.md): Waco GXE · Burt, NY · Accident · No injuries · Class 3 · Limited · Final report · Sep 13, 2021 · N8564 · Substantial damage
  > The improper magneto timing, which resulted in the engine’s inability to produce full power during the takeoff.
- [NTSB ERA21LA359](https://openairdocs.org/ntsb/ERA21LA359.md): Cessna 172S · Venice, FL · Accident · No injuries · Class 4 · Limited · Final report · Sep 9, 2021 · N782JA · Substantial damage
  > Maintenance personnel’s failure to use the correct throttle linkage hardware when reinstalling the engine, resulting in a disconnection of the throttle during flight.
- [NTSB CEN21LA402](https://openairdocs.org/ntsb/CEN21LA402.md): Murphy Renegade II · Sheridan, IL · Accident · No injuries · Class 3 · Limited · Final report · Sep 5, 2021 · N490DJ · Substantial damage
  > A total loss of engine power during initial climb due to a piston seizure.
- [NTSB ANC21LA094](https://openairdocs.org/ntsb/ANC21LA094.md): Dehavilland DHC-3 · Bettles, AK · Accident · No injuries · Class 3 · Limited · Final report · Aug 21, 2021 · N560TR · Substantial damage
  > The seizure of the engine during flight for undetermined reasons, which led to a total loss of engine power.
- [NTSB WPR21LA325](https://openairdocs.org/ntsb/WPR21LA325.md): Stout Garry V Europa - Trigear · Hanksville, UT · Accident · No injuries · Class 3 · Limited · Final report · Aug 16, 2021 · N133AC · Substantial damage
  > The pilot’s installation of a non-original equipment manufactured radiator cap, which resulted in the loss of coolant and the engine’s exceedance of the maximum admissible cylinder head temperature. Contributing to the accident was the lack of suitable…
- [NTSB WPR21LA316](https://openairdocs.org/ntsb/WPR21LA316.md): Beech 77 · Stanley, NM · Accident · No injuries · Class 3 · Limited · Final report · Aug 12, 2021 · N3873Y · Substantial damage
  > A loss of engine performance due to lead fouling of the lower spark plugs, which resulted in an off airport forced landing.
- [NTSB CEN21LA359](https://openairdocs.org/ntsb/CEN21LA359.md): Piper J3C-65 · Gosport, IN · Accident · No injuries · Class 3 · Limited · Final report · Aug 6, 2021 · N6269H · Substantial damage
  > A total loss of engine power during cruise flight due to the failure of a cylinder exhaust valve stem, which led to a forced landing during which the airplane impacted terrain.
- [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 CEN21LA358](https://openairdocs.org/ntsb/CEN21LA358.md): Cessna 182 · Patterson, LA · Accident · No injuries · Class 3 · Limited · Final report · Jul 27, 2021 · N148LP · Substantial damage
  > The mechanic’s failure to properly secure the throttle arm rendering it loose and inoperable after takeoff, which resulted in a total loss of engine power.
- [NTSB ERA21FA253](https://openairdocs.org/ntsb/ERA21FA253.md): Vans RV6 · Buckingham, PA · Accident · 1 fatal · Class 3 · Field · Final report · Jun 15, 2021 · N74MS · Substantial damage
  > An exhaust system leak that resulted in failure of the oil quick drain, a loss of oil lubrication, an in-flight fire, and the pilot’s subsequent loss of airplane control.
- [NTSB CEN21LA264](https://openairdocs.org/ntsb/CEN21LA264.md): Boeing B75N1 · Elwood, NE · Accident · No injuries · Class 3 · Limited · Final report · Jun 13, 2021 · N777JG · Substantial damage
  > The failure of the engine master rod, resulting in a total loss of engine power and a forced landing.
- [NTSB WPR21LA219](https://openairdocs.org/ntsb/WPR21LA219.md): Stoddard Hamilton Glasair II · Darby, MT · Accident · Serious injuries · Class 3 · Limited · Final report · May 29, 2021 · N8176J · Substantial damage
  > The pilot’s impact with terrain during a go-around following an attempted precautionary landing due to a low oil pressure indication. The reason for the low oil pressure indication could not be determined based on the available information.
- [NTSB CEN21LA222](https://openairdocs.org/ntsb/CEN21LA222.md): Flight Design Ctls · Racine, WI · Accident · Minor injuries · Class 3 · Limited · Final report · May 18, 2021 · N521CT · Destroyed
  > The fatigue failure of the carburetor throttle control cable, which resulted in a partial loss of engine control.
- [NTSB ANC21LA038](https://openairdocs.org/ntsb/ANC21LA038.md): Enstrom F-28F · Palmer, AK · Accident · No injuries · Class 3 · Limited · Final report · May 9, 2021 · N8627J · Substantial damage
  > A loss of drive to the rotor system due to the disengagement of the main belt drive tensioning system, which resulted in a forced landing. The disengagement was due to inadequate clearance between the clutch handle and the roll pin in the handle bellcrank…
- [NTSB CEN21LA138](https://openairdocs.org/ntsb/CEN21LA138.md): Cessna 182F · Millville, IA · Accident · Minor injuries · Class 3 · Limited · Final report · Feb 24, 2021 · N3209U · Substantial damage
  > The inadequate maintenance/inspection of the airplane, which resulted in a total loss of engine power due to oil starvation.
- [NTSB DCA21FA085](https://openairdocs.org/ntsb/DCA21FA085.md): Boeing 777-222 · Broomfield, CO · Incident · No injuries · Class 3 · Field · Final report · Feb 20, 2021 · N772UA · Minor damage
  > The fatigue failure of the right engine fan blade. Contributing to the fan blade failure was the inadequate inspection of the blades, which failed to identify low-level indications of cracking, and the insufficient frequency of the manufacturer’s inspection…
- [NTSB CEN21FA130](https://openairdocs.org/ntsb/CEN21FA130.md): Velocity Vtwin · Janesville, WI · Accident · 2 fatal · Class 3 · Field · Final report · Feb 16, 2021 · N13VT · Substantial damage
  > The exceedance of the maximum airspeed for flight with the landing gear extended, which resulted in a separation of the right main landing gear door that subsequently impacted the right propeller and resulted in a total loss of right engine power.…
- [NTSB ERA21LA109](https://openairdocs.org/ntsb/ERA21LA109.md): Plante Challenger II · Minneola, FL · Accident · Serious injuries · Class 3 · Limited · Final report · Jan 21, 2021 · N4469Z · Substantial damage
  > Failure of the engine/propeller drive belt.
- [NTSB WPR21LA079](https://openairdocs.org/ntsb/WPR21LA079.md): Piper PA-20-135 · Riverside, UT · Accident · No injuries · Class 4 · Limited · Final report · Jan 1, 2021 · N1571A · Substantial damage
  > A failure of the throttle control during a landing roll, which resulted in a loss of control and collision with a fence.
- [NTSB ENG21LA011](https://openairdocs.org/ntsb/ENG21LA011.md): Cessna 501 · Opa Locka, FL · Incident · No injuries · Class 3 · Limited · Final report · Dec 31, 2020 · N75TL · Minor damage
  > An uncontained left engine failure caused by a low cycle fatigue crack that originated from a manufacturing machining groove on the high pressure compressor impeller aft face. Contributing to the incident was service bulletin borescope inspection criteria…
- [NTSB CEN21LA088](https://openairdocs.org/ntsb/CEN21LA088.md): Rans S12XL · Port Isabel, TX · Accident · 2 fatal · Class 3 · Limited · Final report · Dec 16, 2020 · N449JP · Substantial damage
  > An exceedance of the airplane’s critical angle of attack and aerodynamic stall following a loss of engine power during an unknown phase of flight, which resulted in an impact with terrain.
- [NTSB WPR21LA068](https://openairdocs.org/ntsb/WPR21LA068.md): Cirrus Design SR22 · Ogden, UT · Accident · Serious injuries · Class 3 · Limited · Final report · Dec 10, 2020 · N577CP · Substantial damage
  > The partial loss of engine power for reasons that cannot be determined due to lack of available evidence.
- [NTSB WPR21FA048](https://openairdocs.org/ntsb/WPR21FA048.md): Cessna 182 · Los Angeles, CA · Accident · 1 fatal · Class 3 · Field · Final report · Nov 12, 2020 · N939CP · Destroyed
  > Maintenance personnel’s failure to properly secure the throttle control hardware during recent maintenance, which resulted in its disconnection and a subsequent loss of engine power on approach for landing.

Next page: https://openairdocs.org/ntsb-events/340/sequence.md?status=final&page=4

## 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."completionStatus" = 'Completed'
  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?page=3&status=final

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