# 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 6 of 17 · 821 cases

## Cases, newest first

- [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 GAA21WA253](https://openairdocs.org/ntsb/GAA21WA253.md): Cessna 441 · Tindal, Australia · Accident · No injuries · Class 5 · Foreign · Sep 7, 2021 · VH-JFU · Minor damage
- [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 GAA21WA218](https://openairdocs.org/ntsb/GAA21WA218.md): Boeing A75N1(PT17) · Sandbanks, United Kingdom · Accident · No injuries · Class 5 · Foreign · Sep 4, 2021 · N707TJ · Destroyed
- [NTSB GAA21WA223](https://openairdocs.org/ntsb/GAA21WA223.md): Robinson R44 · Kamajab, Namibia · Accident · Class 5 · Foreign · Aug 28, 2021 · V5-HJL · Substantial damage
- [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 DCA21WA188](https://openairdocs.org/ntsb/DCA21WA188.md): Boeing 747 · Zhengzhou City, China · Incident · No injuries · Class 5 · Foreign · Jul 28, 2021 · LX-GCL · No damage
- [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 ENG21WA027](https://openairdocs.org/ntsb/ENG21WA027.md): Boeing 737 · Beograd, Serbia · Incident · Class 5 · Foreign · May 27, 2021 · OO-JAO · Minor damage
- [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 DCA21WA136](https://openairdocs.org/ntsb/DCA21WA136.md): Boeing 777 · Cayo Coco, Cuba · Incident · No injuries · Class 5 · Foreign · May 11, 2021 · VQ-BJA · Minor damage
- [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 DCA21WA129](https://openairdocs.org/ntsb/DCA21WA129.md): Airbus A330 · Karachi, Pakistan · Incident · Class 5 · Foreign · May 4, 2021 · AP-BNE · No damage
- [NTSB GAA21WA085](https://openairdocs.org/ntsb/GAA21WA085.md): Cessna 550 · Eelde, Netherlands · Accident · No injuries · Class 5 · Foreign · Apr 16, 2021 · PH-SVZ · No damage
- [NTSB ENG21WA020](https://openairdocs.org/ntsb/ENG21WA020.md): Boeing 737 · Jakarta, Indonesia · Incident · No injuries · Class 5 · Foreign · Mar 27, 2021 · PK-YSC · Minor damage
- [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 GAA21WA023](https://openairdocs.org/ntsb/GAA21WA023.md): Bell 206 · Wonderboom, South Africa · Accident · No injuries · Class 4 · Foreign · Feb 17, 2021 · ZS-HWZ · Substantial damage
- [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 ENG21WA017](https://openairdocs.org/ntsb/ENG21WA017.md): Boeing 737 · Kinshasa, Congo - Kinshasa · Incident · Class 5 · Foreign · Feb 6, 2021 · 9S-AII · Minor damage
- [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 ENG21WA010](https://openairdocs.org/ntsb/ENG21WA010.md): Airbus A330 · Keflavik, Iceland · Incident · Class 5 · Foreign · Dec 28, 2020 · N810NW · No damage
- [NTSB ENG21WA009](https://openairdocs.org/ntsb/ENG21WA009.md): Boeing 737 · Johannesburg, South Africa · Incident · Class 5 · Foreign · Dec 25, 2020 · ZS-SJR · No damage
- [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 ENG21WA008](https://openairdocs.org/ntsb/ENG21WA008.md): Boeing 737 · Katowice, Poland · Incident · No injuries · Class 5 · Foreign · Dec 5, 2020 · LZ-CGU · Minor damage
- [NTSB ENG21WA007](https://openairdocs.org/ntsb/ENG21WA007.md): Boeing 777 · Naha, Japan · Incident · Class 4 · Foreign · Dec 4, 2020 · JA8978 · Minor damage
- [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.
- [NTSB CEN21WA093](https://openairdocs.org/ntsb/CEN21WA093.md): Cessna 401B · Toussus-le-Noble, France · Accident · No injuries · Class 4 · Foreign · Oct 30, 2020 · N517HC · Substantial damage
- [NTSB ENG21WA050](https://openairdocs.org/ntsb/ENG21WA050.md): Sikorsky S92 · Sola, Norway · Incident · No injuries · Class 5 · Foreign · Oct 20, 2020 · LN-OMI · No damage
- [NTSB ERA21LA024](https://openairdocs.org/ntsb/ERA21LA024.md): Robinson R22 · Winder, GA · Accident · Serious injuries · Class 3 · Limited · Final report · Oct 18, 2020 · N566BC · Substantial damage
  > Maintenance personnel’s failure to properly secure the engine cooling fan attachment bolts, leading to vibration of the cooling fan, the overextension of the tension belt actuator, the failure of the drive system vee-belts, and the loss of power to the rotor…
- [NTSB ERA21LA006](https://openairdocs.org/ntsb/ERA21LA006.md): Piper PA28 · Fulton, NY · Accident · Minor injuries · Class 4 · Limited · Final report · Oct 4, 2020 · N6179U · Substantial damage
  > The mechanic’s improper maintenance, which resulted in the crankshaft expansion plug dislodging in flight and a subsequent forced landing.
- [NTSB ERA20LA309](https://openairdocs.org/ntsb/ERA20LA309.md): Piper PA28 · McMinnville, TN · Accident · 3 fatal · Class 3 · Limited · Final report · Sep 8, 2020 · N4166Z · Substantial damage
  > A total loss of engine power due to a fatigue failure in a cylinder, and the pilot’s subsequent failure to maintain airspeed and her exceedance of the airplane’s critical angle-of-attack while maneuvering at low altitude.
- [NTSB CEN20LA377](https://openairdocs.org/ntsb/CEN20LA377.md): Stinson 108-3 · Coleman, MI · Accident · No injuries · Class 3 · Limited · Final report · Sep 1, 2020 · N909C · Substantial damage
  > The pilot’s improper installation of the generator drive gear, which resulted in a total loss of engine power.
- [NTSB WPR20WA281](https://openairdocs.org/ntsb/WPR20WA281.md): Robinson R22 · McArthur River Mine, Australia · Accident · No injuries · Foreign investigation · Aug 16, 2020 · VH-YMU · Substantial damage

Next page: https://openairdocs.org/ntsb-events/340/sequence.md?page=7

## 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."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=6

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