# NTSB investigations: Lycoming 0-320 series: Loss of engine power (partial)

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 1 of 3 · 136 cases

## Latest cases

- [NTSB CEN27LA029](https://openairdocs.org/ntsb/CEN27LA029.md): Piper PA-28 · Claremore, OK · Accident · No injuries · Class 3 · Limited · Preliminary report · Oct 22, 2026 · N5393W · Substantial damage
  > On October 22, 2026, about 1510 central daylight time, a Piper PA-28-160 airplane, N5393W, was substantially damaged when it was involved in an accident near Claremore, Oklahoma. The flight instructor and student pilot were not injured. The airplane was…
- [NTSB CEN26LA322](https://openairdocs.org/ntsb/CEN26LA322.md): Cessna 172M · Hanover, IN · Accident · Minor injuries · Class 3 · Limited · Preliminary report · Sep 16, 2026 · N9909Q · Substantial damage
  > On September 16, 2026, about 1905 eastern daylight time, a Cessna 172M airplane, N9909Q, was substantially damaged when it was involved in an accident near Hanover, Indiana. The pilot and passenger sustained minor injuries. The airplane was operated as a…
- [NTSB ERA26LA342](https://openairdocs.org/ntsb/ERA26LA342.md): Cessna 172N · Panama City, FL · Accident · No injuries · Class 3 · Limited · Preliminary report · Sep 7, 2026 · N734NM · Substantial damage
  > On September 7, 2026, about 1059 central daylight time, a Cessna 172N airplane, N734NM, was substantially damaged when it was involved in an accident near Panama City, Florida. The student pilot and flight instructor were not injured. The airplane was…
- [NTSB ERA26LA319](https://openairdocs.org/ntsb/ERA26LA319.md): Piper PA22 · Pace, FL · Accident · No injuries · Class 3 · Limited · Preliminary report · Aug 29, 2026 · N5731D · Substantial damage
  > On August 29, 2026, about 1030 central daylight time, a Piper PA-22-150, N5731D, was substantially damaged when it was involved in an accident near Pace, Florida. The pilot was not injured. The airplane was operated as a Title 14 Code of Federal Regulations…
- [NTSB ERA26LA221](https://openairdocs.org/ntsb/ERA26LA221.md): Cessna 172P · Pembroke Pines, FL · Accident · Serious injuries · Class 3 · Limited · Preliminary report · May 29, 2026 · N96100 · Substantial damage
  > On May 29, 2026, at 1138 eastern daylight time, a Cessna 172P, N96100, was substantially damaged when it was involved in an accident near Pembroke Pines, Florida. The flight instructor sustained serious injuries. The student pilot sustained minor injuries.…
- [NTSB WPR26LA190](https://openairdocs.org/ntsb/WPR26LA190.md): Piper PA-28-140 · Chandler, AZ · Accident · No injuries · Class 3 · Limited · Preliminary report · May 15, 2026 · N8714N · Substantial damage
  > On 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 WPR26LA132](https://openairdocs.org/ntsb/WPR26LA132.md): Piper PA-28-140 · West Valley City, UT · Accident · No injuries · Class 3 · Limited · Preliminary report · Mar 21, 2026 · N7328J · Substantial damage
  > On March 21, 2026, about 1610 mountain daylight time, a Piper PA-28-140, N7328J, was substantially damaged when it was involved in an accident near West Valley City, Utah. The pilot and passenger were not injured. The airplane was operated as a Title 14 Code…
- [NTSB CEN26LA143](https://openairdocs.org/ntsb/CEN26LA143.md): Cessna 172P · Denton, TX · Accident · Serious injuries · Class 3 · Limited · Preliminary report · Mar 20, 2026 · N65614 · Substantial damage
  > On March 20, 2026, about 1415 central daylight time, a Cessna 172P airplane, N65614, was substantially damaged when it was involved in an accident near Denton, Texas. The pilot sustained minor injuries, and the pilot-rated sensor operator sustained serious…
- [NTSB ERA26LA144](https://openairdocs.org/ntsb/ERA26LA144.md): Piper PA-28-140 · Indian Trail, NC · Accident · Serious injuries · Class 3 · Limited · Preliminary report · Mar 8, 2026 · N98360 · Substantial damage
  > On March 8, 2026, about 1100 eastern daylight time, a Piper PA-28-140, N98360, was substantially damaged when it was involved in an accident near Indian Trail, North Carolina. The pilot and passenger were seriously injured. The airplane was operated as a…
- [NTSB WPR26FA119](https://openairdocs.org/ntsb/WPR26FA119.md): Piper PA-28-140 · Phoenix, AZ · Accident · Serious injuries · Class 3 · Field · Preliminary report · Mar 4, 2026 · N7744T · Substantial damage
  > On 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 ERA26LA046](https://openairdocs.org/ntsb/ERA26LA046.md): Cessna 172 · Palm Bay, FL · Accident · Minor injuries · Class 3 · Limited · Preliminary report · Nov 18, 2025 · N6124D · Substantial damage
  > On November 17, 2025, about 1900 eastern standard time, a Cessna 172N, N6124D, was substantially damaged when it was involved in an accident near Palm Bay, Florida. The private pilot sustained minor injuries. The airplane was operated as a Title 14 Code of…
- [NTSB ERA26LA007](https://openairdocs.org/ntsb/ERA26LA007.md): Cessna 172 · Miami, FL · Accident · Minor injuries · Class 3 · Limited · Preliminary report · Oct 7, 2025 · N433PT · Substantial damage
  > On October 07, 2025, at 1440 eastern daylight time, a Cessna 172M, N433PT, was substantially damaged when it was involved in an accident near Miami, Florida. The private pilot and the flight instructor were uninjured. The airplane was operated as a Title 14…
- [NTSB CEN26LA006](https://openairdocs.org/ntsb/CEN26LA006.md): Piper PA-28-140 · McGregor, MN · Accident · Serious injuries · Class 3 · Limited · Preliminary report · Oct 5, 2025 · N4218T · Substantial damage
  > On October 5, 2025, about 1310 central daylight time, a Piper PA-28-140, N4218T was substantially damaged when it was involved in an accident near McGregor, Minnesota. The pilot and two passengers were seriously injured. The airplane was operated under the…
- [NTSB ERA25LA302](https://openairdocs.org/ntsb/ERA25LA302.md): Cessna 172 · Titusville, FL · Accident · Serious injuries · Class 3 · Limited · Preliminary report · Aug 15, 2025 · N7205Q · Substantial damage
  > On August 15, 2025, about 1415 eastern daylight time, a Cessna 172, N7205Q, was substantially damaged when it was involved in an accident near Titusville, Florida. The pilot was seriously injured and the flight instructor received minor injuries. The airplane…
- [NTSB CEN25LA168](https://openairdocs.org/ntsb/CEN25LA168.md): Cessna 172N · Longmont, CO · Accident · No injuries · Class 3 · Limited · Final report · May 4, 2025 · N75775 · Substantial damage
  > The disconnected throttle control that resulted in a loss of engine power due to improper maintenance.
- [NTSB CEN25LA111](https://openairdocs.org/ntsb/CEN25LA111.md): Piper PA-28-140 · Pearland, TX · Accident · Minor injuries · Class 3 · Limited · Preliminary report · Mar 6, 2025 · N54479 · Substantial damage
  > On March 6, 2025, about 1145 central standard time, a Piper PA-28-140 airplane, N54479, was substantially damaged when it was involved in an accident near Pearland, Texas. One pilot sustained minor injuries, and the other pilot was not injured. The airplane…
- [NTSB CEN25LA096](https://openairdocs.org/ntsb/CEN25LA096.md): Grumman American Avn. AA-5A · Gladewater, TX · Accident · Minor injuries · Class 3 · Limited · Preliminary report · Feb 18, 2025 · N26071 · Substantial damage
  > On February 17, 2025, about 2215 central standard time, a Grumman AA-5A airplane, N26071, was substantially damaged when it was involved in an accident near Gladewater, Texas. The pilot sustained minor injuries. The airplane was operated as a Title 14 Code of…
- [NTSB ERA24LA271](https://openairdocs.org/ntsb/ERA24LA271.md): Cessna 172 · Hernando, FL · Accident · No injuries · Class 3 · Limited · Final report · Jun 21, 2024 · N734XT · Substantial damage
  > The improper installation of a cylinder rocker stud by maintenance personnel, which resulted in a partial loss of engine power and subsequent forced landing.
- [NTSB CEN24LA200](https://openairdocs.org/ntsb/CEN24LA200.md): Piper PA28 · Taylor, TX · Accident · Minor injuries · Class 3 · Limited · Final report · May 27, 2024 · N56466 · Substantial damage
  > A partial loss of engine power due to an incorrect carburetor air inlet hose, which led to a reduction in air flow to the engine.
- [NTSB WPR24LA117](https://openairdocs.org/ntsb/WPR24LA117.md): Piper PA-28-140 · Acton, CA · Accident · No injuries · Class 3 · Limited · Final report · Mar 23, 2024 · N1695H · Substantial damage
  > The pilots inability to fully turn off the carburetor heat which resulted in a reduction of engine power and reduced climb performance. Contributing to the accident was the pilots delayed recovery from the simulated emergency landing.
- [NTSB ERA23LA310](https://openairdocs.org/ntsb/ERA23LA310.md): Piper PA-28-140 · New London, NC · Accident · Serious injuries · Class 3 · Limited · Final report · Jul 24, 2023 · N98134 · Substantial damage
  > A partial loss of engine power due to the No. 4 cylinder’s stuck exhaust valve.
- [NTSB ERA23FA103](https://openairdocs.org/ntsb/ERA23FA103.md): Piper PA28 · Suffolk, VA · Accident · 2 fatal · Class 3 · Field · Final report · Jan 7, 2023 · N592FL · Destroyed
  > The pilot’s decision to fly the airplane without confirming it had been released from maintenance, which resulted in a partial loss of engine power due to loose magnetos. Contributing to the outcome was the pilot’s failure to maintain adequate airspeed and…
- [NTSB CEN22FA436](https://openairdocs.org/ntsb/CEN22FA436.md): Piper PA-28-140 · Allentown, PA · Accident · 1 fatal · Class 3 · Field · Final report · Sep 28, 2022 · N7329F · Destroyed
  > A partial loss of engine power for undetermined reasons.
- [NTSB WPR22LA351](https://openairdocs.org/ntsb/WPR22LA351.md): Cessna 172L · Ventura, CA · Accident · Minor injuries · Class 3 · Limited · Final report · Sep 16, 2022 · N7917G · Substantial damage
  > A partial loss of engine power due to the fatigue fracture of the No. 4 exhaust valve.
- [NTSB ERA22LA411](https://openairdocs.org/ntsb/ERA22LA411.md): Cessna 172 · Clearfield, PA · Accident · No injuries · Class 3 · Limited · Final report · Sep 3, 2022 · N9619H · Substantial damage
  > A sudden partial loss of engine power for undetermined reasons, which resulted in an off-airport landing.
- [NTSB ERA22LA369](https://openairdocs.org/ntsb/ERA22LA369.md): Cessna 172 · Jamestown, NY · Accident · Serious injuries · Class 3 · Limited · Final report · Aug 12, 2022 · N4751F · Substantial damage
  > A partial loss of engine power for reasons that could not be definitively determined.
- [NTSB WPR22LA301](https://openairdocs.org/ntsb/WPR22LA301.md): Piper PA-28-140 · Laurel, MT · Accident · Minor injuries · Class 3 · Limited · Final report · Aug 11, 2022 · N5780F · Substantial damage
  > The loss of climb performance due to undetermined reasons.
- [NTSB CEN22LA230](https://openairdocs.org/ntsb/CEN22LA230.md): Cessna 172P · Ennis, TX · Accident · No injuries · Class 3 · Limited · Final report · Jun 2, 2022 · N65497 · Substantial damage
  > A partial loss of engine power for reasons that were undetermined.
- [NTSB ERA22LA172](https://openairdocs.org/ntsb/ERA22LA172.md): Piper PA-28 · Melbourne, FL · Accident · Minor injuries · Class 3 · Limited · Final report · Mar 29, 2022 · N5067W · Substantial damage
  > A loss of engine power due to oil starvation as a result of the failure of the No. 3 crankshaft journal bearing.
- [NTSB ANC22LA008](https://openairdocs.org/ntsb/ANC22LA008.md): Piper PA-18 · Palmer, AK · Accident · No injuries · Class 4 · Limited · Final report · Nov 26, 2021 · N1380A · Substantial damage
  > The pilot’s failure to effectively use carburetor heat in conditions conducive to the formation of carburetor ice, which resulted in a partial loss of engine power, off-airport landing, and nose over.
- [NTSB CEN21LA293](https://openairdocs.org/ntsb/CEN21LA293.md): Piper PA-28-140 · Porter, TX · Accident · No injuries · Class 3 · Limited · Final report · Jun 25, 2021 · N4216J · Substantial damage
  > The pilot’s decision to continue the takeoff with degraded engine performance, which resulted in an inability to climb and a subsequent forced landing. The reason for the engine’s degraded performance could not be determined based on available information.
- [NTSB ERA21LA213](https://openairdocs.org/ntsb/ERA21LA213.md): Piper PA-28-161 · Okeechobee, FL · Accident · Serious injuries · Class 3 · Limited · Final report · Apr 29, 2021 · N271SG · Substantial damage
  > A total loss of engine power for reasons that could not be determined based on available information.
- [NTSB CEN21LA175](https://openairdocs.org/ntsb/CEN21LA175.md): Piper PA-28-140 · Augusta, KS · Accident · No injuries · Class 3 · Limited · Final report · Apr 1, 2021 · N7274F · Substantial damage
  > Inadequate maintenance at the time the carburetor was replaced, which resulted in the improperly installed throttle cable and a partial loss of engine power. Contributing to the accident was an inadequate annual inspection that failed to detect the improper…
- [NTSB WPR21LA151](https://openairdocs.org/ntsb/WPR21LA151.md): Piper PA-28-140 · Yacolt, WA · Accident · Minor injuries · Class 3 · Limited · Final report · Mar 29, 2021 · N665FL · Substantial damage
  > A partial loss of power caused by carbon build up in the cylinders, which prevented the exhaust valves from seating properly. Contributing to the accident was flying in moderate icing conditions which resulted in reduced aircraft performance and vibrations.
- [NTSB WPR21LA069](https://openairdocs.org/ntsb/WPR21LA069.md): Cessna 172 · San Diego, CA · Accident · No injuries · Class 3 · Limited · Final report · Dec 13, 2020 · N5098E · Substantial damage
  > A partial loss of engine power due to the fatigue fracture of the No. 3 exhaust valve rocker arm stud.
- [NTSB WPR21LA052](https://openairdocs.org/ntsb/WPR21LA052.md): Bellanca 7GCBC · Fallbrook, CA · Accident · Minor injuries · Class 3 · Limited · Final report · Nov 11, 2020 · N57517 · Substantial damage
  > A partial loss of engine power for reasons that could not be determined with the available evidence.
- [NTSB CEN20LA343](https://openairdocs.org/ntsb/CEN20LA343.md): Piper PA18 · Brandon, MN · Accident · Minor injuries · Class 3 · Limited · Final report · Aug 15, 2020 · N2510H · Destroyed
  > The partial loss of engine power during takeoff due to carburetor icing.
- [NTSB WPR20LA212](https://openairdocs.org/ntsb/WPR20LA212.md): Cessna 172 · Lake Tahoe, CA · Accident · 2 fatal · Class 3 · Limited · Final report · Jul 7, 2020 · N6328D · Destroyed
  > The partial loss of engine power due to carbon buildup in the No. 4 cylinder resulting from the pilot’s inadequate mixture-leaning procedures.
- [NTSB WPR20LA136](https://openairdocs.org/ntsb/WPR20LA136.md): Cessna 172 · Fresno, CA · Accident · Minor injuries · Class 3 · Limited · Final report · May 2, 2020 · N734NW · Substantial damage
  > The partial loss of engine power for reasons that could not be determined based on available evidence.
- [NTSB ANC20CA030](https://openairdocs.org/ntsb/ANC20CA030.md): Piper PA18 · Big Lake, AK · Accident · No injuries · Data collection · Final report · Feb 29, 2020 · N7384D · Substantial damage
  > The pilot's failure to use carburetor heat in conditions conducive to carburetor icing, which resulted in a partial loss of engine power, a precautionary landing, and impact with snow.
- [NTSB ERA19LA274](https://openairdocs.org/ntsb/ERA19LA274.md): Socata TB9 · Fort Meade, MD · Accident · Minor injuries · Class 3 · Limited · Final report · Sep 17, 2019 · N2824R · Substantial damage
  > The failure of the carburetor intake scat tubing, which resulted in a partial loss of engine power.
- [NTSB CEN19LA299](https://openairdocs.org/ntsb/CEN19LA299.md): Piper PA28 · Conroe, TX · Accident · Minor injuries · Class 3 · Limited · Final report · Aug 31, 2019 · N55633 · Substantial damage
  > A partial loss of engine power for reasons that could not be determined based on the available evidence.
- [NTSB CEN19LA265](https://openairdocs.org/ntsb/CEN19LA265.md): Piper PA28 · Fairhope, AL · Accident · No injuries · Class 3 · Limited · Final report · Jul 30, 2019 · N6754J · Substantial damage
  > Failure of the No. 3 exhaust valve and the subsequent loss of engine power due to engine operation with an excessively lean fuel mixture over a period of time.
- [NTSB WPR19LA176](https://openairdocs.org/ntsb/WPR19LA176.md): Cessna 172 · Fullerton, CA · Accident · No injuries · Class 3 · Limited · Final report · Jun 21, 2019 · N64460 · Substantial damage
  > Partial loss of engine power during takeoff due to an age-degraded carburetor heat valve seal, which detached and partially blocked the carburetor air inlet. Contributing to the accident was an inadequate maintenance inspection.
- [NTSB WPR19LA102](https://openairdocs.org/ntsb/WPR19LA102.md): Cessna 172 · Placerville, CA · Accident · No injuries · Class 3 · Limited · Final report · Mar 31, 2019 · N7033Q · Substantial damage
  > The partial loss of engine power due to an improperly maintained carburetor.
- [NTSB ANC19LA011](https://openairdocs.org/ntsb/ANC19LA011.md): Piper PA-22-150 · Anchorage, AK · Accident · Minor injuries · Class 3 · Limited · Final report · Jan 22, 2019 · N7640D · Substantial damage
  > A loss of engine power due to oil starvation as the result of a loose B-nut fitting on the engine oil cooler, resulting in a forced landing to a soft, snow-covered surface, and a subsequent nose over.
- [NTSB WPR19LA065](https://openairdocs.org/ntsb/WPR19LA065.md): Piper PA28 · Salt Lake City, UT · Accident · No injuries · Class 3 · Limited · Final report · Jan 15, 2019 · N1697J · Substantial damage
  > A partial loss of engine power due to the mechanic’s failure to properly secure the throttle lever locking nut and cotter pin.
- [NTSB ERA19LA027](https://openairdocs.org/ntsb/ERA19LA027.md): Piper PA28 · Parker, CO · Accident · No injuries · Class 3 · Limited · Final report · Oct 26, 2018 · N5575U · Substantial damage
  > A partial loss of engine power during initial climb due to carburetor icing, and the pilot's failure to effectively use carburetor heat in conditions conducive to the formation of carburetor ice.
- [NTSB ANC18LA080](https://openairdocs.org/ntsb/ANC18LA080.md): Piper PA18 · Delta Junction, AK · Accident · No injuries · Limited investigation · Final report · Sep 30, 2018 · N5907Y · Substantial damage
  > The total loss of engine power due to carburetor icing, which resulted from the pilot's failure to use carburetor heat while operating at low power settings in conditions conducive to the formation of carburetor ice.
- [NTSB CEN18LA299](https://openairdocs.org/ntsb/CEN18LA299.md): Piper PA28 · Columbia, IL · Accident · Serious injuries · Limited investigation · Final report · Jul 28, 2018 · N624FL · Substantial damage
  > The airplane's inability to climb due to reduced engine power as a result of insufficient compression in all cylinders and fouled spark plugs in the No. 2 cylinder while operating near its maximum gross weight.

Next page: https://openairdocs.org/ntsb-events/342/cases.md?engine=41508&page=2

## 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 x.case_mkey FROM 'https://openairdocs.org/data/latest/ntsb_aircrafts.parquet' x WHERE x.engine_model_code IN ('41508')
    AND EXISTS (SELECT 1 FROM 'https://openairdocs.org/data/latest/ntsb_events.parquet' e WHERE e.case_mkey = x.case_mkey AND e.aircrafts_position = x.position AND e."isDefiningEvent" AND e."tier2Number" = '342'))
ORDER BY c."eventDate" DESC, c."ntsbNumber" DESC
```

This list as a web page: https://openairdocs.org/ntsb-events/342/cases?engine=41508

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