Final NTSB investigations: Lycoming IO-720 series
85 cases on aircraft whose registry engine model is Lycoming IO-720 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
| 1964 | 1 |
|---|---|
| 1965 | 1 |
| 1966 | 4 |
| 1967 | 2 |
| 1968 | 2 |
| 1970 | 3 |
| 1971 | 2 |
| 1972 | 1 |
| 1974 | 4 |
| 1975 | 4 |
| 1976 | 1 |
| 1977 | 4 |
| 1978 | 1 |
| 1979 | 2 |
| 1980 | 1 |
| 1981 | 1 |
| 1982 | 3 |
| 1984 | 2 |
| 1985 | 2 |
| 1986 | 3 |
| 1987 | 3 |
| 1988 | 1 |
| 1989 | 1 |
| 1990 | 2 |
| 1991 | 3 |
| 1992 | 1 |
| 1996 | 2 |
| 1997 | 3 |
| 1998 | 1 |
| 2000 | 1 |
| 2003 | 2 |
| 2004 | 3 |
| 2005 | 2 |
| 2007 | 2 |
| 2008 | 2 |
| 2009 | 1 |
| 2010 | 3 |
| 2011 | 1 |
| 2013 | 1 |
| 2019 | 1 |
| 2021 | 1 |
| 2022 | 1 |
| 2023 | 1 |
| 2024 | 1 |
| 2025 | 1 |
Where
Open the mapLatest 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 ('41546'))
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.
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 ('41546'))
ORDER BY c."eventDate" DESC, c."ntsbNumber" DESCRun it at the DuckDB prompt, or in any tool that reads Parquet over HTTPS. More ways to query the release are on Use the data.
NTSB CEN25LA218Accident · No injuriesClass 4 · LimitedFinal reportPiper PA-36-375 · Huron, SDThe pilot’s exceedance of the airplane’s critical angle of attack during a low-level aerial application, which resulted in an aerodynamic stall and loss of airplane control at too low of an altitude to recover.NTSB CEN24LA269Accident · No injuriesClass 3 · LimitedFinal reportPiper PA-36-375 · Avoca, NEA partial loss of engine power due to the loose left magneto which resulted in erratic engine timing.NTSB ERA23LA364Accident · No injuriesClass 4 · LimitedFinal reportPiper PA24 · Norwood, MAThe pilot’s failure to fly an appropriate glide path during the landing approach, which resulted in a collision with approach lights and the ground short of the intended runway.NTSB WPR22LA180Accident · No injuriesClass 3 · LimitedFinal reportPiper PA-24-400 · Benson, AZThe pilot’s failure to lower the landing gear on approach due to distraction.NTSB WPR21LA343Accident · Minor injuriesClass 4 · LimitedFinal reportPiper PA-24-400 · Fullerton, CAThe pilot’s failure to monitor the environment and maintain a proper glidepath on approach which, resulted in a collision with the airport perimeter fence.NTSB GAA19CA319Accident · No injuriesData collectionFinal reportPiper PA24 · Weiner, ARThe pilot's failure to maintain directional control during the landing roll on a wet runway, which resulted in a runway overrun and collision with a pole.NTSB WPR13CA148Accident · Minor injuriesData collectionFinal reportPiper PA-24-400 · Minden, NVThe pilot's improper flare, which resulted in a bounced landing and a loss of directional control.NTSB CEN11CA526Accident · No injuriesData collectionFinal reportPiper PA-36-375 · Cambridge, NEThe pilot's failure to reset the engine's mixture control lever to the full rich position prior to takeoff.NTSB ERA10LA263Accident · No injuriesLimited investigationFinal reportHachem Zachery S E7 · Homerville, GAThe pilot’s improper flare, which resulted in a hard landing.NTSB CEN10LA127Accident · No injuriesLimited investigationFinal reportHawker Beechcraft 65-B80 · Minneapolis, MNThe pilot of the other airplane not setting the parking brake adequately while holding for departure. Contributing to the accident was the pilot of the other airplane being distracted while doing his paperwork.NTSB ERA10FA138Accident · 1 fatalField investigationFinal reportBeech 65 · Lawrenceville, GAThe failure of both engines for undetermined reasons.NTSB ERA09FA303Accident · 1 fatalField investigationFinal reportAero Commander 500 S · Daytona Beach, FLA total loss of engine power due to fuel exhaustion as a result of the pilot’s inadequate preflight inspection.NTSB CEN09LA023Accident · Serious injuriesLimited investigationFinal reportPiper PA-36-285 · Silverton, TXThe pilot's failure to maintain clearance from a transmission wire.NTSB LAX08CA188Accident · Minor injuriesData collectionFinal reportPiper PA-36-375 · Lodi, CAThe pilot's inadequate in-flight decision to continue the flight into an area of obscured visibility and his failure to maintain clearance above obstacles.NTSB LAX07LA280Accident · Serious injuriesLimited investigationFinal reportRoot Sherpa · Scappoose, ORA loss of aircraft pitch control due to the fatigue failure of the fuselage tube structure at the flight control stick gimbal mechanism due to an incomplete weld penetration at the root of the weld.NTSB CHI07CA088Accident · No injuriesData collectionFinal reportPiper PA-24-400 · Des Moines, IAthe nose landing gear becoming jammed in a partially extended position during flight as a result of damage to the nose landing gear by ground personnel.NTSB CHI05CA210Accident · No injuriesData collectionFinal reportBarr Barr Six · Knox, INThe undetermined cause of the fire during the taxi.NTSB LAX05GA243Accident · Serious injuriesFinal reportAero Commander 680 FL · Las Vegas, NVThe pilot's excessive selection of flaps prior to takeoff, which resulted in a failure to obtain/maintain an appropriate climb airspeed, and an inadvertent stall/mush during takeoff-initial climb. A factor contributing to the accident was a high density…NTSB SEA04LA178Accident · Serious injuriesLimited investigationFinal reportHelio H800 · Fossil, ORThe pilot's failure to remove the aileron wing gust locks prior to flight, which resulted in a loss of control during the descent/emergency landing. A factor contributing to the accident was the pilot's inadequate preflight.NTSB ATL04CA106Accident · Serious injuriesData collectionFinal reportBeech BE-65 (LF-23F) · Winder, GAThe pilot's mismanagement of the fuel supply resulted in fuel starvation and a loss of power in both engines.NTSB MIA04LA074Accident · Minor injuriesLimited investigationFinal reportTerry E. Morris Glasair III · Lakeland, FLThe pilot's failure to maintain airspeed and establish a climb during an attempted go-around which resulted in a stall/mush and collision with terrain. His failure to follow air traffic control instructions is a contributing factor.NTSB DEN03LA098Accident · Minor injuriesLimited investigationFinal reportHelio H800 · Cody, WYthe pilot's improper preflight planning and his failure to maintain aircraft control when returning to the airport. Factors contributing to the accident were the oil leak, the attempted precautionary landing, and the downdraft.NTSB LAX03LA129Accident · No injuriesLimited investigationFinal reportPiper PA-36-375 · Herald, CAthe inadequate visual lookout for other aircraft by both pilots that resulted in a midair collision.NTSB SEA00LA145Accident · No injuriesLimited investigationFinal reportRoot Sherpa · Helena, MTThe pilot's failure to maintain directional control while landing.NTSB FTW98LA200Accident · No injuriesLimited investigationFinal reportPiper PA-24-400 · Jackson, WYthe pilot's misjudgment of distance and speed, while approaching to land; his failure to attain a proper touchdown point for landing; and his failure to go around, while there was sufficient runway remaining. A related factor was the uneven terrain, which was…NTSB FTW98LA027Accident · No injuriesLimited investigationFinal reportHelio H-800 · Ogden, UTfailure of the tail wheel assembly, which rendered the aircraft uncontrollable during landing roll.NTSB CHI97LA105Accident · No injuriesLimited investigationFinal reportPiper PA-24 · Elk Falls, KSfracture of the fuel selector assembly which resulted in fuel starvation.NTSB FTW97LA105Accident · No injuriesLimited investigationFinal reportPiper PA-36-375 · Danevang, TXThe utility's company failure to notify affected parties of the downed line, and the pilot's failure to maintain clearance with the downed wire. A factor was the downed wire.NTSB FTW97LA061Accident · No injuriesLimited investigationFinal reportPiper PA-24-400 · Broomfield, COfailure of the pilot to maintain proper alignment with the runway, while landing. A factor relating to the accident was: the variable/gusty wind condition with possible windshear.NTSB FTW96LA353Accident · No injuriesLimited investigationFinal reportPiper PA-36-300 · Hale Center, TXthe pilot's inadequate preflight planning/preparation and failure to obtain and/or maintain adequate airspeed after takeoff, which resulted in an inadvertent stall/mush. The overweight condition of the airplane and high density altitude were related factors.NTSB CHI92DCD03Accident · Minor injuriesFinal reportPiper PA-36-375 · Deloit, IAInadequate visual lookout by the pilot in command while performing aerial application maneuvers. A factor in the accident is the pilot's diverted attention.NTSB FTW91LA127Accident · Minor injuriesLimited investigationFinal reportPiper PA-24-400 · Nashville, ARFuel starvation induced loss of power due to a blocked finger fuel strainer in the fuel servo unit. A factor was the unsuitable terrain at the pilot's disposal.NTSB ATL91LA135Accident · Minor injuriesLimited investigationFinal reportPiper PA-24-260 · Springfield, TNThe PA-24 pilot's failure to maintain proper airspeed while executing a go-around, resulting in the stalling of the airplane. A factor in the accident was the PA-24 pilot's failure to visually detect the J-3 in a timely manner.NTSB DEN91FA039Accident · 2 fatalField investigationFinal reportPiper PA-24-400 · Snowmass, COThe pilot's failure to maintain a proper altitude in mountainous terrain.NTSB DEN90LA157Accident · No injuriesLimited investigationFinal reportPiper PA-36 · Clarkston, UTJammed ailerons resultant from the collision with crops.NTSB LAX90LA120Accident · No injuriesLimited investigationFinal reportCessna 414 · Ramona, CARight main gear scissors assemlby becoming disconnected during landing roll, allowing the right run landing gear to collapse; scissor assembly washers not being replaced as recommended in Cessna aircraft service bulletin ME83-37..NTSB MKC89LA198Accident · No injuriesLimited investigationFinal reportBeech 80 · Littlefork, MNTotal failure of the electrical system during IFR operations & the aircraft's collision with a rock fence during the subsequent gear-up precautionary landing.NTSB SEA88LA174Accident · No injuriesLimited investigationFinal reportPiper PA-24-400 · Gasquet, CAThe pilot stated that as he turned final approach, intense sunglare was encountered. The plt executed a go-around 'in the blind,' and collided with trees in approach path. The acft remained flyable and the pilot diverted to medford, Oregon.NTSB SEA88LA018Accident · No injuriesLimited investigationFinal reportPiper PA-24-400 · Winnemucca, NVThe plt was attempting to land close to the approach end of the rwy. He made the approach with full flaps at 85 mph the rate of descent became excessive and before recovery was affected the acft collided with a fence near the rwy threshold. The acc site was…NTSB NYC87DHD05Accident · Minor injuriesFinal reportPiper PA-36-400 · Mullica Hill, NJThe pilot of the PA-36 was spraying chemicals on trees for control of the gypsy moth. He reported that he was unable to clear power lines and dumped his load. The aircraft settled to the ground. The FAA reported that the weight of the aircraft exceeded the…NTSB DEN87LA117Accident · No injuriesLimited investigationFinal reportPiper PA-36-375 · Lamar, COThe commercial plt was on takeoff from a dirt strip with a fully loaded ag acft, for an aerial application flt. After lifting off prematurely, the acft settled to the rwy. The left wing struck a post skidding the acft to the left. After crossing an irrigation…NTSB SEA87LA016Accident · Minor injuriesLimited investigationFinal reportPiper PA-24-400 · Oregon City, ORShortly after takeoff, an eng failure occurred. The plt elected to make a forced lndg on a freeway. During the landing, the acft collided with two vehicles. An inspection revealed an eng oil line had ruptured which led to oil exhaustion. Evidence indicated…NTSB CHI86LA153Accident · No injuriesLimited investigationFinal reportPiper PA-36-375 · Breckenridge, MNAircraft collided with a truck while engaged in aerial application work. Pilot was unable to maintain control and the aircraft collided with terrain after an uncontrolled descent. Investigation revealed that the aileron had separated due to the collision.NTSB MIA86LA179Accident · No injuriesLimited investigationFinal reportPiper PA-24-400 · St.Augustine, FLA forced ldg was made after the eng failed while cruising at 8000 ft. an exam of the eng revealed that the top of the crankcase was cracked & a hole was in the top of the case at the no. 2 cylinder. The bottom of the cap of the no. 2 connecting rod had broken…NTSB FTW85FRD03Accident · Minor injuriesFinal reportAdvanced Technology Predator 480 · Welsh, LAThe acft impacted the terrain in an uncontrolled descent during the initial takeoff climb. The plt reported that after takeoff at an alt of aprx 20 ft AGL, the acft rolled 20 to 25 degs to the right. After correcting for the roll, the plt stated, the acft…NTSB LAX85FA122Accident · Minor injuriesField investigationFinal reportPiper PA-24-400 · Helendale, CAShortly after initiating an enroute letdown, the acft experienced a catastrophic engine failure at about 4,500 ft MSL. Plt selected a road for an attempted emergency landing, but a car turned onto the road in front of him and forced a diversion to a nearby…NTSB MKC84LA176Accident · Minor injuriesLimited investigationFinal reportPiper PA-36-375 · Storm Lake, IAWhile on the 2nd swath run, the plt maneuvered the acft to cross under power lines bordering the edge of the corn field. He said he misjudged the distance to clear the power lines. The vertical stabilizer & rudder struck the lines & were torn from the acft.…NTSB DEN84LA138Accident · No injuriesLimited investigationFinal reportPiper PA-36-375 · Albuquerque, NMThe acft had recently been sold & was being ferried to the buyer in Oklahoma. After a refueling stop at the coronado arpt, the plt took off & proceeded northeast to avoid rotor clouds associated with the sandia mountains about 8 mi east of Albuquerque, NM.…NTSB MIA82DA183Accident · No injuriesFinal reportPiper PA-36-375 · Astatula, FLThe plt stated the acft failed to become airborne at the usual takeoff point & did not climb when forced into the air. The acft then settled into soft sand.NTSB FTW82FRJ12Accident · 1 fatalFinal reportPiper PA-36-375 · Wildsville, LAThe pilot took off on a local flight to spray a bean field. About 1000 ft from the end of the field was a 300 ft radio tower. The aircraft was observed to circle the bean field and circle the radio tower twice. During a procedure turn, the aircraft struck the…