# NTSB investigations, AL: Aircraft maintenance event

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 ERA23FA382](https://openairdocs.org/ntsb/ERA23FA382.md): Smith William S Smith Cozy Mark IV · Cullman, AL · Accident · 1 fatal · Class 3 · Field · Final report · Sep 29, 2023 · N95SF · Substantial damage
  > The pilot’s exceedance of the airplane’s critical angle of attack while maneuvering at low altitude, which resulted in an aerodynamic stall and subsequent loss of control. Contributing to the accident was the pilot/owner’s improper installation of engine…
- [NTSB ERA23LA183](https://openairdocs.org/ntsb/ERA23LA183.md): Peterson Mark G Peterson A600 · Foley, AL · Accident · No injuries · Class 4 · Limited · Final report · Apr 6, 2023 · N272AM · Destroyed
  > The loss of engine power during the initial climb due to the disconnection of the turbocharger air intake hose and clamp, and the pilot’s inadequate servicing and preflight inspection of the turbocharger air intake clamp.
- [NTSB ERA22LA198](https://openairdocs.org/ntsb/ERA22LA198.md): Cessna 310 · Selma, AL · Accident · No injuries · Class 3 · Limited · Final report · Apr 13, 2022 · N7733Q · Substantial damage
  > The failure of maintenance personnel to properly rig the rudder trim system after reinstallation and pilot’s inadequate preflight inspection after recent maintenance, which resulted in an inability to adequately maintain directional control during the flight.
- [NTSB ERA20LA212](https://openairdocs.org/ntsb/ERA20LA212.md): Piper PA32RT · Selma, AL · Accident · 2 fatal · Class 3 · Limited · Final report · Jun 10, 2020 · N543GS · Destroyed
  > The mechanic’s failure to clean the oil suction screen during the most recent maintenance, which resulted in oil starvation and subsequent total loss of engine power.
- [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 ERA15CA107](https://openairdocs.org/ntsb/ERA15CA107.md): Piper PA-28-161 · Alexander City, AL · Accident · Minor injuries · Data collection · Final report · Jan 19, 2015 · N104SA · Substantial damage
  > The pilot's failure to properly secure the airplane before hand-propping the engine for startup.
- [NTSB ERA14LA099](https://openairdocs.org/ntsb/ERA14LA099.md): Bell 47D1 · Pell City, AL · Accident · Minor injuries · Limited investigation · Final report · Jan 21, 2014 · N93067 · Substantial damage
  > The pilot’s use of an improper clutch engagement procedure, which resulted in clutch glazing, slippage, and, ultimately, the in-flight disengagement of the clutch and a loss of rotor rpm. Contributing to the accident were the installation of a light-weight…
- [NTSB ERA13LA407](https://openairdocs.org/ntsb/ERA13LA407.md): Piper PA-32R-300 · Guntersville, AL · Accident · Minor injuries · Limited investigation · Final report · Sep 8, 2013 · N8362C · Substantial damage
  > The improper installation of the engine magneto by unknown maintenance personnel, which resulted in the magneto separating from the engine and a subsequent total loss of engine power. Contributing to the accident was the pilot's delay in proceeding directly…
- [NTSB ERA12LA441](https://openairdocs.org/ntsb/ERA12LA441.md): Piper PA-46-350P · Auburn, AL · Accident · No injuries · Limited investigation · Final report · Jul 6, 2012 · N4133G · Substantial damage
  > The airplane owner’s failure to have maintenance personnel comply with an aircraft manufacturer's service bulletin to require engine mount inspections for fatigue cracks, which resulted in an undetected fatigue crack, the engine mount failing, and the nose…

## 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" = '040' 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/040/sequence?state=AL

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OpenAirDocs.org is an independent research project of [Contrail Labs](https://contraillabs.com/). It is not affiliated with the FAA or the NTSB. Source documents are U.S. government works in the public domain.