# NTSB investigations, MI: 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.

## Latest cases

- [NTSB CEN24LA185](https://openairdocs.org/ntsb/CEN24LA185.md): Titan T51 · Novi, MI · Accident · Serious injuries · Class 3 · Limited · Final report · May 12, 2024 · N260Y · Substantial damage
  > A failure of the electrical system, resulting in a loss of fuel injection and subsequent loss of engine power.
- [NTSB CEN23LA165](https://openairdocs.org/ntsb/CEN23LA165.md): Pipistrel Lsa Sinus · Kingsford, MI · Accident · No injuries · Class 3 · Limited · Final report · Apr 13, 2023 · N413EK · Substantial damage
  > The failure of maintenance personnel to properly secure the left carburetor bowl cover, which resulted in an engine fire before takeoff.
- [NTSB CEN23LA067](https://openairdocs.org/ntsb/CEN23LA067.md): Cessna 172F · Auburn Hills, MI · Accident · Minor injuries · Class 3 · Limited · Final report · Dec 21, 2022 · N8768U · Substantial damage
  > The catastrophic engine failure due to lack of oil lubrication, which resulted from the pilot’s failure to follow the airplane and engine manufacturers’ guidance for cold weather operation.
- [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 CEN19LA249](https://openairdocs.org/ntsb/CEN19LA249.md): Cessna A185 · Saginaw, MI · Accident · Minor injuries · Class 3 · Limited · Final report · Aug 3, 2019 · N5806J · Substantial damage
  > Maintenance personnel’s failure to properly align the crankshaft during an engine reassembly which led to a fatigue failure of the crankshaft and the loss of all engine power.
- [NTSB CEN19LA066](https://openairdocs.org/ntsb/CEN19LA066.md): Piper PA-32R-300 · Adrian, MI · Accident · Minor injuries · Limited investigation · Final report · Jan 13, 2019 · N8892E · Substantial damage
  > The airframe and powerplant mechanic's lack of experience in the overhaul of the engine model and the improper torque of the crankshaft gear bolt, which resulted in fatigue failure of the bolt and a total loss of engine power during an approach for landing.
- [NTSB CEN17LA316](https://openairdocs.org/ntsb/CEN17LA316.md): Navion Navion G · Adrian, MI · Accident · Serious injuries · Limited investigation · Final report · Aug 11, 2017 · N249KC · Substantial damage
  > A leak in the gascolator, which allowed air to enter the fuel system and resulted in a partial loss of engine power.
- [NTSB CEN16LA035](https://openairdocs.org/ntsb/CEN16LA035.md): Glimn Kitfox 2-3 · Escanaba, MI · Accident · Minor injuries · Limited investigation · Final report · Nov 3, 2015 · N93TG · Substantial damage
  > The airplane owner's inadequate maintenance and servicing of the propeller gearbox, which resulted in oil starvation, failure of the gearbox in flight, and a subsequent loss of propeller thrust. Contributing to the outcome was the airplane's low altitude at…
- [NTSB CEN15LA421](https://openairdocs.org/ntsb/CEN15LA421.md): Lerch RV6A · Deckerville, MI · Accident · Serious injuries · Limited investigation · Final report · Sep 22, 2015 · N215DG · Substantial damage
  > The in-flight loss of engine oil after the oil filter separated from the engine adapter assembly because of an incorrect modification of the oil filter adapter assembly, which resulted in a precautionary landing in a field.
- [NTSB CEN15LA346](https://openairdocs.org/ntsb/CEN15LA346.md): Ercoupe 415 · Saint Martin Island, MI · Accident · No injuries · Limited investigation · Final report · Jul 18, 2015 · CFGGS · Substantial damage
  > The failure of a connecting rod bearing, which resulted in a loss of engine power.
- [NTSB CHI08LA160](https://openairdocs.org/ntsb/CHI08LA160.md): Piper PA-44-180 · Battle Creek, MI · Accident · No injuries · Limited investigation · Final report · Jun 8, 2008 · N159WM · Substantial damage
  > The in-flight separation of the tip of a propeller blade due to metal fatigue that resulted from an inadequate inspection and repair.

## 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" = 'MI' 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" = '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?state=MI

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