NTSB investigations: Lycoming IO-720 series, TX

13 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

19672026
NTSB investigations: Lycoming IO-720 series, TX per year, 1967–2026: 13 cases
19671
19681
19701
19711
19721
19772
19781
19821
19961
19971
20081
20261

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.\"eventStateOrRegion\" = 'TX' AND c.\"eventCountry\" = 'USA'
    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.

NTSB WPR26LA218Accident · Minor injuriesClass 4 · LimitedInvestigation openPiper PA-24-400 · Graham, TXJun 13, 2026 · N400HL · Substantial damageNTSB CEN09LA023Accident · Serious injuriesLimited investigationFinal reportPiper PA-36-285 · Silverton, TXThe pilot's failure to maintain clearance from a transmission wire.Oct 18, 2008 · N57740 · Substantial damageNTSB 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.Feb 18, 1997 · N7167E · Substantial damageNTSB 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.Aug 20, 1996 · N57831 · Substantial damageNTSB FTW82FQG15Accident · 1 fatalFinal reportPiper PA-36 · Floydada, TXThe aircraft crashed about 500 ft north of the field that was being sprayed. After impact, it traveled about 90 ft on a heading of 060 degrees. Green glass fragments were found at the initial impact point as well as propeller slash marks that were nearby. No…Mar 4, 1982 · N2394Y · DestroyedNTSB FTW79FRJ01Accident · Serious injuriesClosedPiper PA-24 · Longview, TXOct 13, 1978 · N400CW · Substantial damageNTSB FTW78FPA11Accident · No injuriesClosedPiper PA-24 · Paris, TXDec 25, 1977 · N8509P · Substantial damageNTSB FTW77FQG35Accident · No injuriesClosedPiper PA-24 · Sterling City, TXMay 8, 1977 · N8481P · Substantial damageNTSB FTW73DRG06Accident · No injuriesClosedPiper PA-24 · Pflugerville, TXAug 1, 1972 · N847SP · Substantial damageNTSB FTW71FQD20Accident · Minor injuriesClosedDehavilland 6A · Sanderson, TXApr 24, 1971 · N1472V · Substantial damageNTSB FTW71FQG29Accident · No injuriesClosedPiper PA-24 · Lubbock, TXAug 29, 1970 · N8468P · Substantial damageNTSB FTW69F0222Accident · No injuriesClosedPiper PA-24 · Wink, TXSep 19, 1968 · N8467P · Substantial damageNTSB FTW67F0576Accident · No injuriesClosedPiper PA-24 · San Marcos, TXFeb 26, 1967 · N8594P · Destroyed