# NTSB investigations: Cessna 150M: 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 ERA24LA239](https://openairdocs.org/ntsb/ERA24LA239.md): Cessna 150 · San Juan, PR · Accident · Serious injuries · Class 3 · Limited · Final report · Jun 1, 2024 · N6198K · Substantial damage
  > A partial loss of engine power due to the failure of the No. 2 cylinder rocker shaft bosses from fatigue cracking.
- [NTSB CEN22LA141](https://openairdocs.org/ntsb/CEN22LA141.md): Cessna 150M · Brodhead, WI · Accident · Minor injuries · Class 3 · Limited · Final report · Mar 13, 2022 · N63246 · Substantial damage
  > A loss of engine power due to the fatigue fracture of the No. 1 cylinder’s rocker shaft bosses, which resulted in a forced landing into uneven terrain.
- [NTSB CEN21LA381](https://openairdocs.org/ntsb/CEN21LA381.md): Cessna 150M · Wadsworth, OH · Accident · No injuries · Class 3 · Limited · Final report · Aug 11, 2021 · N66748 · Substantial damage
  > A partial loss of engine power due to carburetor icing and the pilot’s failure to apply carburetor heat when the power loss occurred.
- [NTSB CEN18LA329](https://openairdocs.org/ntsb/CEN18LA329.md): Cessna 150 · Madison, SD · Accident · No injuries · Limited investigation · Final report · Aug 14, 2018 · N6341K · Substantial damage
  > A stuck No. 3 cylinder exhaust valve, which resulted in failure of the associated rocker arm, a partial loss of engine power, and the subsequent forced landing into tall vegetation.
- [NTSB CEN18LA177](https://openairdocs.org/ntsb/CEN18LA177.md): Cessna 150M · Sinton, TX · Accident · No injuries · Limited investigation · Final report · Mar 7, 2018 · N66786 · Substantial damage
  > The inadequate service and repair of the airplane's carburetor, which led to a partial loss of engine power during takeoff and resulted in a forced landing.
- [NTSB ERA17LA176](https://openairdocs.org/ntsb/ERA17LA176.md): Cessna 150M · Homerville, GA · Accident · No injuries · Class 3 · Limited · Final report · May 9, 2017 · N714DW · Substantial damage
  > A total loss of engine power due to inadequate maintenance and inspection of the engine, which resulted in a fatigue crack and subsequent failure of the No. 4 cylinder.
- [NTSB ERA16LA300](https://openairdocs.org/ntsb/ERA16LA300.md): Cessna 150 · Littleton, MA · Accident · No injuries · Limited investigation · Final report · Aug 19, 2016 · N9230U · Substantial damage
  > A total loss of engine power during descent for reasons that could not be determined because postaccident examination of the airframe and engine revealed no anomalies that would have precluded normal operation.
- [NTSB ERA16LA027](https://openairdocs.org/ntsb/ERA16LA027.md): Cessna 150M · Key Biscayne, FL · Accident · No injuries · Limited investigation · Final report · Oct 26, 2015 · N171RD · Substantial damage
  > The fatigue failure of the No. 1 cylinder intake valve, which resulted in the partial loss of engine power.
- [NTSB ERA15LA368](https://openairdocs.org/ntsb/ERA15LA368.md): Cessna 150M · Mount Airy, MD · Accident · No injuries · Limited investigation · Final report · Sep 19, 2015 · N714CW · Substantial damage
  > The in-flight fatigue failure of the No. 4 cylinder barrel, which resulted in a total loss of engine power.
- [NTSB CEN14LA161](https://openairdocs.org/ntsb/CEN14LA161.md): Cessna 150M · Greenwood, IN · Accident · Serious injuries · Limited investigation · Final report · Mar 18, 2014 · N9432U · Substantial damage
  > The flight instructor's failure to ensure that carburetor heat was used while performing maneuvers at reduced power settings in conditions conducive to the formation of carburetor ice, which resulted in a partial loss of engine power due to carburetor ice.…
- [NTSB CEN12LA135](https://openairdocs.org/ntsb/CEN12LA135.md): Cessna 150M · El Dorado, KS · Accident · No injuries · Limited investigation · Final report · Jan 13, 2012 · N714BS · Substantial damage
  > The loss of engine power for reasons that could not be determined because postaccident examination of the airframe and engine did not reveal any anomalies that would have precluded normal operation.
- [NTSB WPR10CA337](https://openairdocs.org/ntsb/WPR10CA337.md): Cessna 150M · Neola, UT · Accident · Minor injuries · Data collection · Final report · Jul 3, 2010 · N3143V · Substantial damage
  > A partial loss of engine power for undetermined reasons and the pilot's failure to maintain clearance from a power line.
- [NTSB ERA10LA298](https://openairdocs.org/ntsb/ERA10LA298.md): Cessna 150M · Pahokee, FL · Accident · No injuries · Limited investigation · Final report · Jun 5, 2010 · N2990V · Substantial damage
  > A partial loss of power during takeoff for undetermined reasons.
- [NTSB CHI08LA134](https://openairdocs.org/ntsb/CHI08LA134.md): Cessna 150M · Palestine, IL · Accident · Serious injuries · Limited investigation · Final report · May 12, 2008 · N66381 · Substantial damage
  > The loss of engine power due to carburetor icing. Contributing to the accident were the pilot's decision to conduct a low-power spiraling descent operation during conditions conducive to carburetor icing, and the weather that was conducive to carburetor icing.

## 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.aircraft_model_code IN ('2071830')
    AND EXISTS (SELECT 1 FROM 'https://openairdocs.org/data/latest/ntsb_events.parquet' s WHERE s.case_mkey = x.case_mkey AND s.aircrafts_position = x.position AND 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?model=2071830

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