NTSB investigations: Lycoming IO-540-K1A5

8 cases on aircraft whose registry engine model is Lycoming IO-540-K1A5. 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

19752026
NTSB investigations: Lycoming IO-540-K1A5 per year, 1975–2026: 8 cases
19751
19931
20121
20141
20181
20191
20221
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 ('41663'))
  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 ANC25LA021Accident · Minor injuriesClass 3 · LimitedFinal reportGippsland GA-8 · Lihue, HIThe failure of the right landing gear leg due to a fatigue crack, which resulted in its separation from the airplane during taxi. Contributing to the accident, was the mechanic’s inadequate inspection of the landing gear leg during the last maintenance…Feb 28, 2025 · N699AV · Substantial damageNTSB WPR22LA204Accident · No injuriesClass 3 · LimitedFinal reportPiper PA-32-300 · Snohomish, WAThe total loss of engine power during takeoff due to fuel starvation and the pilot’s improper fuel tank selection and inadequate preflight inspection.Jun 4, 2022 · N561PK · Substantial damageNTSB GAA19CA239Accident · No injuriesData collectionFinal reportGippsland GA8 · Bethel, AKThe pilot's failure to maintain adequate clearance from a shipping container while taxiing.May 2, 2019 · N524AV · Substantial damageNTSB GAA18CA368Accident · No injuriesData collectionFinal reportPiper PA 32-300 · Columbia, SCThe pilot's failure to maintain directional control during landing.Jun 18, 2018 · N41AL · Substantial damageNTSB CEN14LA504Accident · 2 fatalLimited investigationFinal reportSaccio Thomas A Seawind 3000 · Bloomington, INAn in-flight fire for reasons that could not be determined because the examination of the airplane did not reveal the source of the fire.Sep 18, 2014 · N516SW · DestroyedNTSB CEN12LA543Accident · Serious injuriesLimited investigationFinal reportCross David L Glasair III · Westcliffe, COThe loss of oil pressure due to the failure of an oil filter gasket, which resulted in a total loss of engine power.Aug 7, 2012 · N71AJ · Substantial damageNTSB MIA94LA017Accident · No injuriesLimited investigationFinal reportPiper PA-32-300 · Plymouth, FLTotal failure of the crankshaft due to fatigue resulting in a forced landing and subsequent hard landing.Nov 7, 1993 · N9000M · Substantial damageNTSB MKC76DTK10Accident · No injuriesClosedPiper PA-32 · Flandreau, SDOct 14, 1975 · N5216S · Substantial damage