# NTSB investigations: Lycoming IO-360-L2A: Loss of engine power (total)

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 ERA26LA215](https://openairdocs.org/ntsb/ERA26LA215.md): Textron 172S · Jupiter Farms, FL · Accident · Minor injuries · Class 3 · Limited · Preliminary report · May 22, 2026 · N294PL · Substantial damage
  > On May 22, 2026, about 1518 eastern daylight time, a Textron Aviation 172S, N294PL, was substantially damaged when it was involved in an accident near Jupiter Farms, Florida. The flight instructor and student pilot were not injured. The airplane was operated…
- [NTSB ERA25LA281](https://openairdocs.org/ntsb/ERA25LA281.md): Cessna 172S · Kissimmee, FL · Accident · No injuries · Class 3 · Limited · Preliminary report · Jul 30, 2025 · N121CW · Substantial damage
  > On July 30, 2025, at 11:28 eastern daylight time, a Cessna 172S, N121CW, was substantially damaged when it was involved in an accident near Kissimmee, Florida. The private pilot and flight instructor were uninjured. The airplane was operated as a Title 14…
- [NTSB ERA25LA132](https://openairdocs.org/ntsb/ERA25LA132.md): Textron 172 · New Smyrna Beach, FL · Accident · No injuries · Class 3 · Limited · Preliminary report · Mar 1, 2025 · N923EP · Substantial damage
  > On March 1, 2025, about 1138 eastern standard time, a Cessna 172S, N923EP, was substantially damaged when it was involved in an accident near New Smyrna Beach, Florida. The flight instructor and student pilot were not injured. The airplane was operated as a…
- [NTSB ERA21LA388](https://openairdocs.org/ntsb/ERA21LA388.md): Cessna 172 · Port Orange, FL · Accident · No injuries · Class 3 · Limited · Final report · Sep 29, 2021 · N116SV · Substantial damage
  > The separation of the nut from the stud and the fracture of the bolt that secured the crankshaft idler gear to the engine crankcase, which resulted in a total loss of engine power due to the inability of the left crankshaft idler gear assembly to drive of the…
- [NTSB WPR21LA303](https://openairdocs.org/ntsb/WPR21LA303.md): Cessna 172S · Yelm, WA · Accident · No injuries · Class 3 · Limited · Final report · Jun 11, 2021 · N513WF · Substantial damage
  > A total loss of engine power for reasons that could not be determined based on the available evidence.
- [NTSB ERA21LA187](https://openairdocs.org/ntsb/ERA21LA187.md): Cessna 172S · Venice, FL · Accident · No injuries · Class 3 · Limited · Final report · Apr 17, 2021 · N60457 · Substantial damage
  > A total loss of engine power for reasons that could not be determined based on the available information.
- [NTSB WPR21LA140](https://openairdocs.org/ntsb/WPR21LA140.md): Cessna 172S · Everett, WA · Accident · Minor injuries · Class 3 · Limited · Final report · Mar 23, 2021 · N2164Z · Substantial damage
  > A total loss of engine power during climb, for reasons that could not be determined based on available evidence.
- [NTSB CEN17LA311](https://openairdocs.org/ntsb/CEN17LA311.md): Cessna 172S · Wellston, OH · Accident · Minor injuries · Limited investigation · Final report · Aug 9, 2017 · N5274Q · Substantial damage
  > The failure of a connecting rod small end bushing, which resulted in a loss of engine power.
- [NTSB ERA12LA274](https://openairdocs.org/ntsb/ERA12LA274.md): Cessna 172S · Daytona Beach, FL · Accident · No injuries · Limited investigation · Final report · Apr 9, 2012 · N375LP · Substantial damage
  > A total loss of engine power due to a catastrophic engine failure, the origin of which could not be determined during postaccident examination.
- [NTSB ERA11LA015](https://openairdocs.org/ntsb/ERA11LA015.md): Cessna 172SP · Boynton Beach, FL · Accident · No injuries · Limited investigation · Final report · Oct 10, 2010 · N423FT · Substantial damage
  > The loss of engine power for undetermined reasons.
- [NTSB CEN09LA442](https://openairdocs.org/ntsb/CEN09LA442.md): Cessna 172S · Boyd, TX · Accident · Minor injuries · Limited investigation · Final report · Jul 14, 2009 · N2446F · Substantial damage
  > A total loss of engine power due to the pilot's improper leaning procedures, resulting in a forced landing and collision with a fence.

## 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 ('41597')
    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" = '341'))
ORDER BY c."eventDate" DESC, c."ntsbNumber" DESC
```

This list as a web page: https://openairdocs.org/ntsb-events/341/cases?engine=41597

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