NTSB investigations: CFM International CFM56-7B24 series

9 cases on aircraft whose registry engine model is CFM International CFM56-7B24 series, where the defining event was Turbulence encounter. Aircraft are matched to the registry by N-number and event date, checked against the reported serial number, make and model, so older matches can be wrong.

Cases per year

20112026
NTSB investigations: CFM International CFM56-7B24 series per year, 2011–2026: 9 cases
20111
20122
20181
20201
20221
20231
20241
20251

Latest cases

Query with SQL
duckdb -csv -c "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 ('13044')
      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\" = '360'))
  ORDER BY c.\"eventDate\" DESC, c.\"ntsbNumber\" DESC"

Prints the whole list as CSV. It reads the release’s Parquet files over HTTPS, so there’s nothing to download first. Install DuckDB to run it.

NTSB DCA25LA323Accident · Serious injuriesClass 4 · LimitedFinal reportBoeing 737-7H4 · Port Orange, FLAn encounter with convective turbulence during descent, which resulted in serious injuries to a flight attendant.Sep 12, 2025 · N919WN · No damageNTSB DCA24FA143Accident · Serious injuriesClass 3 · FieldFinal reportBoeing 737-7CT · Gulf of America (Gulf of Mexico)The pilot’s inadvertent encounter with convectively induced turbulence from a broken line of embedded thunderstorms moving across the region. Contributing to the accident was the failure of the air traffic controller to issue pertinent weather information…Apr 3, 2024 · N567WN · No damageNTSB DCA23LA383Accident · Serious injuriesClass 4 · LimitedFinal reportBoeing 737 · East Palestine, OHAn inadvertent encounter with convectively induced turbulence (CIT) during descent.Jul 24, 2023 · N279WN · No damageNTSB DCA23LA008Accident · Serious injuriesClass 4 · LimitedFinal reportBoeing 737 · Denver, COAn encounter with clear air turbulence during cruise flight.Sep 29, 2022 · N7881A · No damageNTSB DCA22LA001Accident · Serious injuriesClass 4 · LimitedFinal reportBoeing 737-7H4 · Orlando, FLAn encounter with moderate turbulence during descent.Jul 5, 2020 · N254WN · No damageNTSB DCA19CA207Accident · Serious injuriesClass 4 · Data collectionFinal reportBoeing 737 · Albany, NYan encounter with convective turbulence that resulted in a serious injury to a flight attendant.Oct 15, 2018 · N7816B · No damageNTSB WPR12LA144Accident · Serious injuriesLimited investigationFinal reportBoeing 737-7H4 · Laverne, OKThe airplane’s encounter with severe turbulence during cruise flight, which resulted in a serious injury to a flight attendant.Mar 20, 2012 · N247WN · No damageNTSB WPR12LA119Accident · Serious injuriesLimited investigationFinal reportBoeing 737-7H4 · Pawnee, NEThe airplane's encounter with moderate turbulence during cruise flight, which resulted in a serious injury to a flight attendant.Feb 23, 2012 · N915WN · No damageNTSB WPR12LA053Accident · Serious injuriesLimited investigationFinal reportBoeing 737-7H4 · Oakland, CAThe flight crew’s flight into known severe turbulence associated with mountain wave activity.Dec 2, 2011 · N261WN · No damage