Final NTSB investigations: CFM International CFM56 series

229 cases on aircraft whose registry engine model is CFM International CFM56 series. 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

19702026
Final NTSB investigations: CFM International CFM56 series per year, 1970–2026: 229 cases
19701
19711
19832
19851
19872
19883
19892
19906
19922
19932
19943
199516
19968
19976
19985
19998
20004
200112
20024
20037
20047
200513
200611
20078
200810
20098
201010
20116
20126
20133
20146
201512
201610
20174
20184
20194
20224
20231
20243
20254

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.\"completionStatus\" = 'Completed'
    AND c.\"mKey\" IN (SELECT x.case_mkey FROM 'https://openairdocs.org/data/latest/ntsb_aircrafts.parquet' x WHERE x.engine_model_code IN ('13802'))
  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 DCA25LA306Accident · Serious injuriesClass 4 · LimitedFinal reportAirbus Industrie A320-212 · Chase City, VAThe abrupt maneuver required to comply with a traffic alert and collision avoidance system resolution advisory during descent.Aug 28, 2025 · N373NW · No damageNTSB DCA25LA240Accident · Serious injuriesClass 4 · LimitedFinal reportAirbus Industrie A321-211 · Miami, FLThe unexpected encounter with a rapidly developing convective cell during climb resulting in convectively induced turbulence on a dark moon-less evening.Jun 22, 2025 · N189UW · No damageNTSB DCA25LA190Accident · Serious injuriesClass 4 · LimitedFinal reportBoeing 737-7H4 · Tahlequah, OKThe airplane’s encounter with moderate turbulence during descent.Apr 20, 2025 · N461WN · No damageNTSB DCA25LA117Accident · No injuriesClass 4 · LimitedFinal reportBoeing 737-832 · Seattle, WAThe Japan Airlines flight crew’s failure to maintain adequate clearance from the parked Delta Air Lines aircraft while taxiing in congested ramp conditions.Feb 5, 2025 · N3737C · 2 aircraft · Substantial damageNTSB DCA24LA256Accident · Serious injuriesClass 4 · LimitedFinal reportBoeing 737 · Severn, MDA passenger’s failure to comply with crew member instructions to remain seated with seatbelt fastened.Aug 7, 2024 · N226WN · No damageNTSB DCA24LA245Accident · No injuriesClass 4 · LimitedFinal reportBoeing 737 · Salt Lake City, UTDelta Air Lines flight 2046 flight crew's incorrect evaluation of the clearance between their airplane and Delta Air Lines flight 2046 as they turned onto a perpendicular taxiway.Jul 27, 2024 · N853DN · 2 aircraft · Minor damageNTSB DCA24LA124Accident · Serious injuriesClass 4 · LimitedFinal reportBoeing 737 · Aylett, VAAn encounter with clear air turbulence during descent.Mar 9, 2024 · N411WN · No damageNTSB DCA23LA170Accident · Serious injuriesClass 4 · LimitedFinal reportBoeing 737 · Rushville, INAn encounter with clear air turbulence during descent.Feb 11, 2023 · N944AN · No damageNTSB DCA23LA067Accident · No injuriesClass 4 · LimitedFinal reportAirbus A320 · Red Oak, IAMultiple bird strikes during descent.Nov 20, 2022 · N330NW · Substantial damageNTSB DCA22LA188Accident · Serious injuriesClass 4 · LimitedFinal reportBoeing 737-824 · Pharisburg, OHThe airplane’s inadvertent encounter with convective turbulence.Aug 19, 2022 · N73270 · No damageNTSB DCA22LA151Accident · Serious injuriesClass 4 · LimitedFinal reportBoeing 737-700 · Santa Ana, CAA flight attendant received a serious injury for undetermined reasons during a firm landing.Jul 2, 2022 · N480WN · No damageNTSB ENG22FA009Incident · No injuriesClass 3 · FieldFinal reportBoeing 737-8K2 · Las Vegas, NVThe fatigue failure of the right main landing gear initiated by liquid metal embrittlement by cadmium at arc burn locations in the outer cylinder tooling hole area. The arc burns were likely the result of operator error during stylus cadmium plating…Feb 4, 2022 · N817SY · Minor damageNTSB DCA19CA137Accident · Serious injuriesClass 4 · Data collectionFinal reportBoeing 737 · Fort Meyers, FLmissing attach screws on the aft galley oven, which allowed it to become dislodged landing, injuring a flight attendant.Apr 12, 2019 · N31412 · No damageNTSB DCA19CA105Accident · No injuriesClass 4 · Data collectionFinal reportBoeing 737 · Atlanta, GAfailure of the B737 captain to maintain separation with the airplane stopped on the taxiway.Mar 11, 2019 · N3756 · 2 aircraft · Minor damageNTSB ENG19IA013Incident · No injuriesIncident investigationFinal reportBoeing 737 · Orlando, FLA No. 1 (left) engine high pressure compressor stage 2 blade separation. The blade separated due to a mixed-mode fatigue crack that originated on a blade disk post and was initiated by a misaligned (out-of-schedule) high pressure compressor stage 1 variable…Feb 21, 2019 · N30401 · No damageNTSB DCA19CA091Accident · Serious injuriesClass 4 · Data collectionFinal reportBoeing 737 · Franklin, TNan encounter with convective turbulence during descent.Feb 18, 2019 · N3730B · No damageNTSB DCA19IA036Incident · No injuriesClass 3 · IncidentFinal reportBoeing 737 · Burbank, CA(1) The flight crewmembers’ decision, due to plan continuation bias, to continue the approach despite indications of windshear and a higher-than-expected tailwind and (2) the flight crew’s misperception of the airplane’s touchdown point, which was farther…Dec 6, 2018 · N752SW · Minor damageNTSB DCA19CA006Accident · Serious injuriesClass 4 · Data collectionFinal reportBoeing 737 · San Jose, CAA passenger falling while returning to her seat which resulted in a serious injury.Oct 11, 2018 · N734SA · No damageNTSB DCA18CA316Accident · Serious injuriesClass 4 · Data collectionFinal reportAirbus A319 · West Palm Beach, FLAn inadvertent encounter with convective turbulence.Jul 23, 2018 · N328NB · No damageNTSB DCA18MA142Accident · 1 fatalClass 1 · MajorFinal reportBoeing 737 7H4 · Philadelphia, PAA low-cycle fatigue crack in the dovetail of fan blade No. 13, which resulted in the fan blade separating in flight and impacting the engine fan case at a location that was critical to the structural integrity and performance of the fan cowl structure. This…Apr 17, 2018 · N772SW · Substantial damageNTSB DCA18CA074Accident · Serious injuriesData collectionFinal reportBoeing 737 7H4 · Los Angeles, CAThe provisioning agent's lack of situational awareness while stepping from the airplane to the provisioning van. Contributing to the accident was the provisioning vans failed switch.Nov 19, 2017 · N740SW · No damageNTSB DCA17CA181Accident · No injuriesData collectionFinal reportBoeing 737 832 · Queens, NYthe Delta B737 captain's failure to maintain proper clearance between his airplane and the stopped American B757.Aug 15, 2017 · N377DA · 2 aircraft · Minor damageNTSB ENG17IA027Incident · No injuriesIncident investigationFinal reportBoeing 737 7H4 · Washington, DCThe failure the control alternator gearshaft, which disconnected the accessory gearbox from the rest of the engine and resulted in an uncommanded in-flight shutdown of the left engine and subsequent flight diversion. The control alternator gearshaft failed…Jun 3, 2017 · N765SW · Minor damageNTSB DCA17CA087Accident · Serious injuriesData collectionFinal reportAirbus A319 114 · Los Angeles, CAmalfunction of the parking brake electrical control valve that resulted in a sudden stop.Mar 6, 2017 · N369NB · No damageNTSB DCA17CA042Accident · Serious injuriesData collectionFinal reportBoeing 737 824 · Denver, COAn inadvertent encounter with mountain wave turbulence.Dec 14, 2016 · N24202 · No damageNTSB DCA16FA217Accident · No injuriesField investigationFinal reportBoeing 737-700 · Pensacola, FLA low-cycle fatigue crack in the dovetail of fan blade No. 23, which resulted in the fan blade separating in flight and impacting the fan case. This impact caused the fan blade to fracture into fragments that traveled farther than expected into the inlet,…Aug 27, 2016 · N766SW · Substantial damageNTSB DCA16CA214Accident · Serious injuriesData collectionFinal reportBoeing 737 924 · Waco, TXan encounter with convective turbulence.Aug 17, 2016 · N37408 · No damageNTSB DCA16CA211Accident · No injuriesData collectionFinal reportBoeing 737 832 · New York, NYinadvertent collision by ground service vehicle.Aug 10, 2016 · N3762Y · Substantial damageNTSB DCA16CA207Accident · No injuriesData collectionFinal reportBoeing 737 3H4 · Baltimore, MDthe tug operators excessive speed during pushback.Aug 5, 2016 · N368SW · Substantial damageNTSB DCA16IA200Incident · No injuriesIncident investigationFinal reportAirbus Industrie A320 211 · Rapid City, SDThe flight crew's misidentification of the desired landing runway due to excess altitude requiring an extended downwind, and failure to use all available navigation information.Jul 8, 2016 · N333NW · No damageNTSB DCA16CA153Accident · Serious injuriesData collectionFinal reportAirbus Industrie A320 214 · Philadelphia, PAan inadvertent encounter with clear air turbulence that resulted in a serious injury to a flight attendant.May 14, 2016 · N103US · No damageNTSB DCA16CA181Accident · Serious injuriesData collectionFinal reportBoeing 737 724 · Port Arthur, TXan inadvertent encounter with clear air turbulence.Mar 15, 2016 · N23708 · No damageNTSB DCA16CA094Accident · No injuriesData collectionFinal reportBoeing 737 · Detroit, MIN925NN flight crew's incorrect evaluation of the clearance between the two aircraft, leading to the inadvertent collision of the winglet with the horizontal stabilizer and elevator of N784SW.Feb 17, 2016 · N925NN · 2 aircraft · Minor damageNTSB DCA16CA077Accident · Serious injuriesData collectionFinal reportBoeing 737 7H4 · Titusville, FLan inadvertent encounter with clear air turbulence.Jan 28, 2016 · N718SW · No damageNTSB DCA16CA053Accident · Serious injuriesData collectionFinal reportBoeing 737 7H4 · Charlotte, NCAn inadvertent encounter with clear air turbulence.Dec 23, 2015 · N475WN · No damageNTSB DCA16LA032Accident · No injuriesLimited investigationFinal reportBoeing 737 3H4 · Nashville, TNthe flight crew's early turn towards the assigned gate because taxiway lighting had been inadvertently turned off by the controller-in-charge which resulted in the airplane leaving the paved surface. Contributing to the accident was the operation of the…Dec 15, 2015 · N649SW · Substantial damageNTSB DCA16CA026Accident · Serious injuriesData collectionFinal reportBoeing 737 7H4 · St Louis, MOan inadvertent encounter with clear air turbulence.Nov 29, 2015 · N467WN · No damageNTSB DCA16CA023Accident · Serious injuriesData collectionFinal reportAirbus Industrie A319 112 · Philadelphia, PAan inadvertent encounter with clear air turbulence.Nov 23, 2015 · N725UW · No damageNTSB DCA16CA008Accident · Serious injuriesData collectionFinal reportBoeing 737 3H4 · Pound Ridge, NYhot water spilled from a cup onto the flight attendant's arm resulting in a 2nd degree burn.Oct 9, 2015 · N383SW · No damageNTSB DCA15CA176Accident · Serious injuriesData collectionFinal reportBoeing 737 7H4 · Oakland, CAinadvertent jet blast, resulting in debris striking ground operations personnel.Aug 23, 2015 · N232WN · No damageNTSB OPS15IA020Incident · No injuriesIncident investigationFinal reportAirbus Industrie A320 211 · Max, NEThe flight crew's continued flight into a closing gap between areas of thunderstorm activity and their failure to maintain the required lateral separation from the thunderstorms, which resulted in the airplane's encounter with hail and subsequent airplane…Aug 8, 2015 · N332NW · Minor damageNTSB CEN15IA337Incident · Minor injuriesIncident investigationFinal reportBoeing 737 · Denver, COThe gate lead/pushback driver's failure to recognize that the provisioning truck was within the safety zone of the gate during his walkaround due to distractions, which resulted in the subsequent collision between the airplane and the truck. Contributing to…Aug 5, 2015 · N779SW · Minor damageNTSB DCA15CA145Accident · Serious injuriesData collectionFinal reportBoeing 737 832 · Salt Lake City, UTinadvertent contact by beverage cart during cabin service.Jun 30, 2015 · N396DA · No damageNTSB DCA15CA152Accident · Serious injuriesData collectionFinal reportAirbus Industrie A320 212 · Boston, MAan inadvertent fall by the passenger while exiting the lavatory when the seat belt light was illuminated.Jun 29, 2015 · N335NW · No damageNTSB DCA15CA125Accident · Serious injuriesData collectionFinal reportAirbus Industrie A320 212 · Atlanta, GAthe flight attendant's failure to secure her lap belt and shoulder harness prior to the takeoff that resulted in her being thrown from her jumpseat shortly after takeoff.May 23, 2015 · N334NW · No damageNTSB CEN15IA225Incident · No injuriesIncident investigationFinal reportAirbus A319 112 · New Orleans, LAThe ingression of moisture into the windshield’s laminate layer, which induced electrical arcing in the windshield heating system that subsequently cracked the outer glass pane of the windshield.May 5, 2015 · N941FR · Minor damageNTSB DCA15CA037Accident · No injuriesData collectionFinal reportBoeing 737 · Baltimore, MDan inadvertent encounter with birds during approach to land that resulted in substantial damage.Dec 13, 2014 · N7710A · Substantial damageNTSB DCA15CA050Accident · Serious injuriesData collectionFinal reportBoeing 737 7H4 · San Jose, CAan inadvertent encounter with convective turbulence during descent.Dec 11, 2014 · N481WN · No damageNTSB DCA15CA035Accident · Serious injuriesData collectionFinal reportBoeing 737 824 · Valdosta, GAan inadvertent encounter with clear air turbulence while the flight attendants were returning to their seats.Nov 24, 2014 · N16217 · No damageNTSB WPR14LA346Accident · No injuriesLimited investigationFinal reportBoeing 737 7H4 · Salt Lake City, UTThe disconnection of baggage carts that subsequently collided with the parked airplane following the tug driving over a dip in the roadway.Aug 14, 2014 · N758SW · Substantial damage