# NTSB investigations, AL: 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.

## Latest cases

- [NTSB ERA26LA348](https://openairdocs.org/ntsb/ERA26LA348.md): Hopwood Joseph R Zodiac · Stockton, AL · Accident · No injuries · Class 4 · Limited · Final report · Sep 20, 2026 · N601LL · Substantial damage
  > A partial loss of engine power due to a missing exhaust clamp bolt and subsequent oil loss due to a damaged engine oil return line, which resulted in the pilot’s decision to perform an off-airport landing.
- [NTSB ERA25LA269](https://openairdocs.org/ntsb/ERA25LA269.md): Beech K35 · Sylacauga, AL · Accident · Serious injuries · Class 3 · Limited · Preliminary report · Jul 16, 2025 · N5353E · Substantial damage
  > On July 16, 2025, at 1402 central standard time, a Beech K35, N5353E, was substantially damaged when it was involved in an accident near Sylacauga, Alabama. The private pilot sustained serious injuries. The airplane was operated as a Title 14 Code of Federal…
- [NTSB ERA24LA152](https://openairdocs.org/ntsb/ERA24LA152.md): Cessna 172 · Opelika, AL · Accident · Minor injuries · Class 3 · Limited · Final report · Mar 24, 2024 · N863AU · Substantial damage
  > A partial loss of engine power due to a combination of fuel/oil contamination in the fuel injector assembly.
- [NTSB ERA23LA331](https://openairdocs.org/ntsb/ERA23LA331.md): Cessna 175 · Wetumpka, AL · Accident · No injuries · Class 3 · Limited · Final report · Aug 11, 2023 · N7117M · Substantial damage
  > A total loss of engine power due to the separation of the No. 3 connecting rod from the crankshaft.
- [NTSB ERA23LA288](https://openairdocs.org/ntsb/ERA23LA288.md): Steen Skybolt · Aliceville, AL · Accident · No injuries · Class 4 · Limited · Final report · Jul 4, 2023 · N32WM · Substantial damage
  > A partial loss of engine power for reasons that could not be determined as the wreckage was not recovered and could not be examined.
- [NTSB ERA22LA380](https://openairdocs.org/ntsb/ERA22LA380.md): Cessna 150 · Berry, AL · Accident · No injuries · Class 3 · Limited · Final report · Aug 20, 2022 · N8797G · Substantial damage
  > A partial loss of engine power due to the No. 3 cylinder’s stuck exhaust valve.
- [NTSB ERA22LA092](https://openairdocs.org/ntsb/ERA22LA092.md): Beech D55 · Hamilton, AL · Accident · Serious injuries · Class 4 · Limited · Final report · Dec 21, 2021 · N44DC · Substantial damage
  > The pilot’s failure to properly configure the airplane’s fuel system, which resulted in a loss of engine power on the left engine due to fuel starvation.
- [NTSB ERA21LA284](https://openairdocs.org/ntsb/ERA21LA284.md): Cessna 150 · Elba, AL · Accident · No injuries · Class 3 · Limited · Final report · Jul 11, 2021 · N8172S · Substantial damage
  > The partial loss of engine power due to the formation of carburetor ice, which resulted in reduced climb capability and impact with trees during takeoff.
- [NTSB ERA20LA194](https://openairdocs.org/ntsb/ERA20LA194.md): Bellanca 8KCAB · Rainbow City, AL · Accident · No injuries · Class 3 · Limited · Final report · May 22, 2020 · N68555 · Substantial damage
  > The partial loss of engine power for reasons that could not be determined based on 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 ERA19FA164](https://openairdocs.org/ntsb/ERA19FA164.md): Piper PA28 · Foley, AL · Accident · 1 fatal · Field investigation · Final report · May 6, 2019 · N5542U · Destroyed
  > A partial loss of engine power due to a stuck exhaust valve and the flight instructor's exceedance of the airplane's critical angle of attack following the loss of power, which resulted in an aerodynamic stall at low altitude.
- [NTSB GAA18CA503](https://openairdocs.org/ntsb/GAA18CA503.md): Champion 8GCBC · Elberta, AL · Accident · Minor injuries · Data collection · Final report · Aug 22, 2018 · N88287 · Substantial damage
  > The pilot's failure to use carburetor heat during a low-power setting approach in conditions conducive to carburetor icing, which resulted in a partial loss of engine power.
- [NTSB ERA18LA161](https://openairdocs.org/ntsb/ERA18LA161.md): Robinson Helicopter R44 II · Fort Morgan, AL · Accident · No injuries · Limited investigation · Final report · Jun 7, 2018 · N755KT · Substantial damage
  > A partial loss of engine power for reasons that could not be determined because postaccident engine examinations did not reveal any evidence of preimpact mechanical malfunctions or failures that would have precluded normal operation.
- [NTSB ERA18FA146](https://openairdocs.org/ntsb/ERA18FA146.md): Beech 35A33 · Jacksonville, AL · Accident · 1 fatal · Field investigation · Final report · May 13, 2018 · N486T · Destroyed
  > The pilot/mechanic's inadequate inspection of the exhaust system, including the left muffler and heat exchanger, which precluded his detection of preexisting cracks and led to a missed opportunity to replace the components. The inadequate inspection allowed…
- [NTSB ANC18LA004](https://openairdocs.org/ntsb/ANC18LA004.md): Cirrus Design SR22T · Tuskegee, AL · Accident · No injuries · Limited investigation · Final report · Oct 15, 2017 · N289CM · Substantial damage
  > An improperly adjusted slope controller and fuel pump that resulted in an excessively high fuel flow, an extremely rich mixture, a rough-running engine, and a subsequent partial loss of engine power.
- [NTSB ERA15LA200](https://openairdocs.org/ntsb/ERA15LA200.md): Diamond Aircraft Ind DA 20 C1 · Sylacauga, AL · Accident · No injuries · Limited investigation · Final report · Apr 27, 2015 · N248ME · Substantial damage
  > A partial loss of engine power due to the failure of the throttle body/fuel metering unit to provide the engine with adequate fuel pressure for full power operation.
- [NTSB ERA14TA326](https://openairdocs.org/ntsb/ERA14TA326.md): Cessna 336 · Mobile, AL · Accident · Serious injuries · Final report · Jul 3, 2014 · N3804U · Substantial damage
  > The pilot’s inadequate preflight fuel planning during which he did not ensure that there was adequate fuel in the main tanks for the flight, which resulted in a loss of engine power.
- [NTSB ERA12LA589](https://openairdocs.org/ntsb/ERA12LA589.md): Cessna 421B · Selma, AL · Accident · No injuries · Limited investigation · Final report · Sep 29, 2012 · N1537T · Substantial damage
  > The pilot’s improper fuel management, which resulted in a total loss of engine power on the right engine and a partial loss of engine power on the left engine due to fuel starvation.
- [NTSB ERA11LA388](https://openairdocs.org/ntsb/ERA11LA388.md): Cessna 172N · Orange Beach, AL · Accident · No injuries · Limited investigation · Final report · Jul 4, 2011 · N109DP · Substantial damage
  > The operation of the airplane using unapproved fuels, which resulted in abnormal combustion and subsequent damage to the No. 3 cylinder. Contributing to the accident was the inadequate 100-hour inspection because the mechanic failed to note the lack of…
- [NTSB ERA11LA167](https://openairdocs.org/ntsb/ERA11LA167.md): Cessna 182F · Auburn, AL · Accident · Minor injuries · Limited investigation · Final report · Feb 27, 2011 · N3420U · Substantial damage
  > A loss of engine power due to an internal failure of the muffler that was not detected by maintenance personnel.
- [NTSB ERA09LA455](https://openairdocs.org/ntsb/ERA09LA455.md): Schempp-Hirth Ventus 2CM · St. Elmo, AL · Accident · Minor injuries · Limited investigation · Final report · Aug 8, 2009 · N70ZZ · Substantial damage
  > A partial loss of engine power for undetermined reasons. Contributing to the accident was the pilot's failure to maintain adequate airspeed during the forced landing.
- [NTSB MIA08CA183](https://openairdocs.org/ntsb/MIA08CA183.md): Smith Wylie Jay Kit Fox II · Deatville, AL · Accident · No injuries · Data collection · Final report · Sep 5, 2008 · N8188F · Substantial damage
  > The pilot's inadequate fuel system maintenance.
- [NTSB NYC08CA208](https://openairdocs.org/ntsb/NYC08CA208.md): Cessna 177RG · Bessemer, AL · Accident · Minor injuries · Data collection · Final report · Jun 8, 2008 · N45133 · Substantial damage
  > Failure of the left magneto for undetermined reasons resulting in a partial loss of engine power during takeoff.

## 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" = 'AL' 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
```

This list as a web page: https://openairdocs.org/ntsb-events/342/sequence?state=AL

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