Final NTSB investigations: Lycoming 0-320 series

146 cases on aircraft whose registry engine model is Lycoming 0-320 series, where the defining event was Loss of engine power (total). 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

20082026
Final NTSB investigations: Lycoming 0-320 series per year, 2008–2026: 146 cases
200813
20098
201010
201116
201213
201311
20147
201513
20167
20177
20188
20198
20206
20216
20224
20231
20247
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.\"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 ('41508')
      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\" = '341'))
  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 CEN25LA322Accident · No injuriesClass 3 · LimitedFinal reportPiper PA-18-150 · Joliet, ILThe failure of the No. 2 cylinder exhaust valve, which resulted in a total loss of engine power.Aug 14, 2025 · N476SM · Substantial damageNTSB ERA24LA388Accident · Minor injuriesClass 3 · LimitedFinal reportCessna 172K · Spartanburg, SCMaintenance personnel’s failure to follow the engine manufacturer’s maintenance guidance, which resulted in the assembly of the engine with an obstructed oil passage, a subsequent lack of lubrication to the front main bearing, and a total loss of engine power.Sep 20, 2024 · N7037G · Substantial damageNTSB WPR24LA271Accident · No injuriesClass 4 · LimitedFinal reportPiper PA-18-150 · Manhattan, MTA total loss of engine power due to carburetor icing.Aug 11, 2024 · N8576Y · Substantial damageNTSB ERA24LA222Accident · Serious injuriesClass 3 · LimitedFinal reportCessna 177 · Selma, ALInsufficient lubrication of the engine’s internal components, which resulted in a total loss of engine power.May 19, 2024 · N3268T · Substantial damageNTSB ANC24LA027Accident · No injuriesClass 3 · LimitedFinal reportPiper PA-28-151 · Marana, AZA total loss of engine power due to a failure of the No. 4 cylinder piston boss.Apr 19, 2024 · N4399X · Substantial damageNTSB WPR24LA084Accident · No injuriesClass 3 · LimitedFinal reportCessna 172P · Goodyear, AZBearing degradation that increased clearances between the bearing and crankshaft journal surfaces, resulting in fatigue cracks and the subsequent failure of the No. 3 connecting rod and a total loss of engine power. Contributing to the accident was the…Feb 10, 2024 · N52436 · Substantial damageNTSB WPR24FA080Accident · 1 fatalClass 3 · FieldFinal reportSwanson R/Swanson S RV-6 · Concord, CAA total loss of engine power during takeoff due to a separated fuel line and the pilot’s subsequent failure to maintain control of the airplane. Contributing to the accident were the pilot's medical condition and the effects of multiple impairing substances.Jan 30, 2024 · N30AK · Substantial damageNTSB CEN24LA092Accident · No injuriesClass 4 · LimitedFinal reportPiper PA22 · Dalhart, TXThe total loss of engine power due to carburetor icing and the pilot’s failure to utilize carburetor heat in meteorological conditions conducive to the formation of carburetor icing.Jan 11, 2024 · N2513P · Substantial damageNTSB ERA23LA141Accident · No injuriesClass 3 · LimitedFinal reportCessna 172M · Miami, FLA total loss of engine power due to a lack of oil lubrication.Mar 7, 2023 · N64535 · Substantial damageNTSB ERA22LA392Accident · Serious injuriesClass 4 · LimitedFinal reportCessna 172N · Gates Mills, OHThe instructor pilot’s decision to perform an inflight magneto check with no suitable area to land. Contributing to the accident was the pilot's failure to correctly perform a magneto check that resulted in a total loss of engine power.Aug 30, 2022 · N204BE · Substantial damageNTSB WPR22LA193Accident · No injuriesClass 3 · LimitedFinal reportVans RV-8 · Galice, ORThe in-flight failure of the crankshaft gear’s alignment dowel as a result of the retaining bolt not being installed, which lead to a total loss of engine power.May 31, 2022 · N298DM · Substantial damageNTSB ERA22LA217Accident · No injuriesClass 4 · LimitedFinal reportCessna 172N · Toms River, NJLoss of engine power due to the throttle linkage becoming disconnected in flight due to improper maintenance.May 1, 2022 · N737LY · Substantial damageNTSB WPR22LA081Accident · Minor injuriesClass 3 · LimitedFinal reportPiper PA-28 · Scottsdale, AZA loss of engine power due to oil exhaustion.Jan 18, 2022 · N5276W · Substantial damageNTSB ERA21LA289Accident · No injuriesClass 3 · LimitedFinal reportPiper PA-23 · Easton, MDA total loss of left engine power and uncommanded feathering of the left propeller for reasons that could not be determined.Jul 15, 2021 · N776MC · Substantial damageNTSB ERA21LA267Accident · Serious injuriesClass 3 · LimitedFinal reportPiper PA-28-161 · Easton, MDA total loss of engine power for reasons that could not be determined.Jun 24, 2021 · N2143G · DestroyedNTSB ERA21LA261Accident · Serious injuriesClass 3 · LimitedFinal reportCessna 172 · Jupiter, FLThe flight instructor’s failure to obtain the proper touchdown point during a forced landing. Contributing to the accident was the improper service and subsequent inadequate inspection of the single-drive, dual magneto, which resulted in a total loss of…Jun 18, 2021 · N2797E · Substantial damageNTSB CEN21LA249Accident · Minor injuriesClass 3 · LimitedFinal reportPiper PA28 · Justin, TXThe loss of engine power for undetermined reasons based upon the available information.Jun 4, 2021 · N8208N · Substantial damageNTSB ANC21FA028Accident · Minor injuriesClass 3 · FieldFinal reportPiper PA-18A · Anchorage, AKA total loss of engine power for reasons that could not be determined based on the available evidence.Mar 29, 2021 · N1968P · Substantial damageNTSB ERA21LA144Accident · No injuriesClass 3 · LimitedFinal reportCessna 172 · Boynton Beach, FLA total loss of engine power for undetermined reasons.Feb 26, 2021 · N5631E · Substantial damageNTSB ERA21LA081Accident · Serious injuriesClass 3 · LimitedFinal reportPiper PA28 · Tampa, FLA total loss of engine power due to the student pilot inadvertently moving the fuel selector to the OFF position.Dec 18, 2020 · N6978W · DestroyedNTSB CEN21LA031Accident · No injuriesClass 3 · LimitedFinal reportPiper PA28 · Buda, TXAn improperly torqued oil line fitting during an engine overhaul, which resulted in oil exhaustion and a total loss of engine power.Oct 21, 2020 · N5932U · Substantial damageNTSB ERA20LA316Accident · Minor injuriesClass 3 · LimitedFinal reportVans RV6 · Melbourne, FLA total loss of engine power for reasons that could not be determined based on the available evidence.Sep 11, 2020 · N196DJ · Substantial damageNTSB ERA20LA299Accident · No injuriesClass 3 · LimitedFinal reportCessna 172 · Weston, FLA total loss of engine power due to the failure of the Nos. 1 and 3 connecting rods from lack of lubrication.Aug 27, 2020 · N65645 · Substantial damageNTSB CEN20LA258Accident · No injuriesClass 3 · LimitedFinal reportPiper PA28 · Bridgeport, TXMaintenance personnel’s inadequate inspection, which resulted in a total loss of engine power due to a restricted air intake-induction system.Jul 2, 2020 · N6530W · Substantial damageNTSB CEN20LA055Accident · No injuriesClass 3 · LimitedFinal reportAero Commander 100 · Mullin, TXA total loss of engine power for reasons that could not be determined based on the available information.Jan 4, 2020 · N5573M · Substantial damageNTSB CEN20LA014Accident · Minor injuriesClass 3 · LimitedFinal reportCessna 172 · Swea City, IAThe pilot's failure to replace the oil filler cap during his preflight inspection, which resulted in oil starvation and a subsequent total loss of engine power.Oct 25, 2019 · N1443E · Substantial damageNTSB ERA19LA280Accident · No injuriesClass 3 · LimitedFinal reportCessna 172 · Manville, NJA total loss of engine power due to the ingestion of sealant material that had loosened inside the carburetor airbox.Sep 24, 2019 · N78192 · Substantial damageNTSB WPR19FA251Accident · 2 fatalClass 3 · FieldFinal reportPiper PA18 · Hood River, ORThe total loss of engine power shortly after takeoff as a result of the private pilot’s failure to ensure the fuel selector was in the appropriate position and the certified flight instructor’s exceedance of the airplane’s critical angle of attack at the time…Sep 6, 2019 · N14365 · Substantial damageNTSB CEN19CA239Accident · No injuriesData collectionFinal reportCessna 172 · Oshkosh, WIThe pilot's improper fuel planning and decision to not divert to a closer airport when the planned flight profile changed, which resulted in a total loss of engine power due to fuel exhaustion.Jul 28, 2019 · N79575 · Substantial damageNTSB GAA19CA272Accident · No injuriesData collectionFinal reportPiper PA28 · Maitland, FLThe pilot's improper fuel planning, which resulted in fuel exhaustion, the total loss of engine power, and subsequent impact with a car during an emergency landing on a road.May 16, 2019 · N6753W · Substantial damageNTSB ERA19LA135Accident · Serious injuriesClass 3 · LimitedFinal reportPiper PA22 · Blanch, NCA total loss of engine power for undetermined reasons.Mar 24, 2019 · N1933P · Substantial damageNTSB WPR19LA092Accident · No injuriesClass 3 · LimitedFinal reportCessna 172 · Melba, IDThe total loss of engine power due to a separated carburetor idle mixture adjustment screw and spring assembly for reasons that could not be determined.Mar 1, 2019 · N6486J · Substantial damageNTSB ERA19LA097Accident · No injuriesLimited investigationFinal reportPiper PA28 · Vero Beach, FLThe pilot's failure to use carburetor heat while operating the airplane in weather conditions and at engine power settings conducive to the formation of carburetor ice, which resulted in a loss of engine power due to carburetor icing and the subsequent forced…Feb 8, 2019 · N9219J · Substantial damageNTSB ERA19LA079Accident · No injuriesLimited investigationFinal reportCessna 172 · Fort Lauderdale, FLA total loss of engine power due to the fatigue fracture of the No. 2 exhaust rocker arm stud.Dec 24, 2018 · N3015E · Substantial damageNTSB WPR19LA035Accident · Minor injuriesClass 3 · LimitedFinal reportCessna 172P · Santa RitaA total loss of engine power for undetermined reasons.Dec 2, 2018 · N98884 · Substantial damageNTSB ANC19LA005Accident · Serious injuriesLimited investigationFinal reportPiper PA 12 · Willow, AKThe loss of engine power shortly after takeoff for reasons that could not be determined based on the available information, which resulted in an emergency landing and collision with trees.Nov 2, 2018 · N3227M · Substantial damageNTSB ERA18LA224Accident · No injuriesClass 3 · LimitedFinal reportGlasair SHA · Greenville, NCA total loss of engine power for reasons that could not be determined based on the available information. Contributing to the accident was the pilot’s misjudgment of the airplane’s glidepath during the forced landing, which resulted in the airplane touching…Aug 18, 2018 · N38WS · Substantial damageNTSB CEN18FA336Accident · 1 fatalField investigationFinal reportCessna 172 · Rhome, TXThe pilot's inadequate maintenance of the airplane, which resulted in a total loss of engine power due to fuel starvation when organic debris restricted available fuel to the carburetor, and the pilot's impairment due to the ingestion of alcohol, which…Aug 17, 2018 · N2893Q · Substantial damageNTSB ERA18LA190Accident · No injuriesClass 3 · LimitedFinal reportGlasair SH2 · Passadumkeag, MEA total loss of engine power due to a fatigue fracture of the crankshaft.Jul 11, 2018 · N352GL · Substantial damageNTSB WPR18LA092Accident · Minor injuriesClass 3 · LimitedFinal reportCessna 172 · Obyan, SarkThe pilot's inadequate preflight fuel planning and inadequate in-flight fuel monitoring which resulted in a total loss of engine power due to fuel exhaustion and an emergency landing and subsequent impact with a ditch.Feb 19, 2018 · N7328F · Substantial damageNTSB CEN18LA068Accident · No injuriesLimited investigationFinal reportBarnes Steven D Steve Barnes RV 4 · Montrose, COThe total loss of engine power for reasons that could not be determined because a postaccident examination of the engine did not reveal any mechanical malfunctions or failures that would have precluded normal operation.Jan 4, 2018 · N83SB · Substantial damageNTSB ERA18TA059Accident · Minor injuriesFinal reportCessna 172 · Union Mills, NCThe pilot's failure to use carburetor heat in weather conditions conducive to serious carburetor icing, which resulted in a total loss of engine power and a subsequent forced landing.Dec 24, 2017 · N91SP · Substantial damageNTSB WPR18LA040Accident · Minor injuriesLimited investigationFinal reportPiper PA-28 · Odessa, FLA loss of engine power due to fuel starvation as a result of the pilot's inadequate planning and in-flight fuel management. Contributing to the accident was the pilot’s failure to follow proper procedures after the loss of engine power.Nov 25, 2017 · N57351 · Substantial damageNTSB WPR17LA216Accident · No injuriesLimited investigationFinal reportCessna 172P · TamuningThe pilot's inadequate preflight inspection, which resulted in oil exhaustion and a subsequent total loss of engine power during cruise flight.Sep 25, 2017 · N5448K · Substantial damageNTSB WPR17LA138Accident · Serious injuriesLimited investigationFinal reportPiper PA 28-140 · Honolulu, HIA total loss of engine power during initial climb for reasons that could not be determined due to impact and fire damage.Jun 30, 2017 · N4244T · Substantial damageNTSB ERA17LA203Accident · No injuriesLimited investigationFinal reportCessna 172 · Suffolk, NYA loss of preload to the crankshaft gear attachment bolt due to improper installation, which resulted in the fatigue failure of the crankshaft gear alignment dowel and led to the rotation of the crankshaft gear and a subsequent total loss of engine power.Jun 12, 2017 · N13306 · Substantial damageNTSB ERA17LA160Accident · No injuriesLimited investigationFinal reportCessna 172 · Yankeetown, FLA total loss of engine power for reasons that could not be determined because postaccident examination of the engine revealed no evidence of any preaccident mechanical malfunctions or failures that would have precluded normal operation.Apr 20, 2017 · N6013E · Substantial damageNTSB WPR17LA092Accident · No injuriesLimited investigationFinal reportPiper PA 28-140 · Whittier, CAThe pilot's impaired decision-making due to alcohol intoxication and his improper fuel management, which resulted in a total loss of engine power due to fuel starvation.Apr 4, 2017 · N55339 · Substantial damageNTSB ERA17LA057Accident · No injuriesLimited investigationFinal reportPiper PA28 · Columbus, GAA total loss of engine power during initial climb for reasons that could not be determined because postaccident examination of the airframe and engine revealed no evidence of any anomalies that would have precluded normal operation.Nov 23, 2016 · N41565 · Substantial damageNTSB ERA17LA005Accident · No injuriesLimited investigationFinal reportPiper PA28 · Laurel, MSA total loss of engine power due to a stuck carburetor float. The reason the carburetor float became stuck could not be determined because postaccident examination of the float and needle/seat revealed no anomalies.Oct 1, 2016 · N499TG · Substantial damage