Fatal NTSB investigations: Lycoming TI0-540 series

9 cases on aircraft whose registry engine model is Lycoming TI0-540 series, where the first occurrence was “Loss of engine power”. 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.

Defining event

Finding

Phase of flight

Aircraft model

Cases per year

19862026

Fatal NTSB investigations: Lycoming TI0-540 series per year, 1986–2026: 9 cases
1986	1
1987	1
1994	1
1999	1
2002	1
2003	1
2004	1
2006	2

Where

Open the map

Latest cases

Query with SQL

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."highestInjuryLevel" = 'Fatal' AND c."mKey" IN (SELECT x.case_mkey FROM 'https://openairdocs.org/data/latest/ntsb_aircrafts.parquet' x WHERE x.engine_model_code IN ('41533') AND EXISTS (SELECT 1 FROM 'https://openairdocs.org/data/latest/ntsb_occurrences.parquet' o WHERE o.case_mkey = x.case_mkey AND o.aircrafts_position = x.position AND o."occurrenceNumber" = 1 AND o."occurrenceCode" = 350)) ORDER BY c."eventDate" DESC, c."ntsbNumber" DESC

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.\"highestInjuryLevel\" = 'Fatal'
    AND c.\"mKey\" IN (SELECT x.case_mkey FROM 'https://openairdocs.org/data/latest/ntsb_aircrafts.parquet' x WHERE x.engine_model_code IN ('41533')
      AND EXISTS (SELECT 1 FROM 'https://openairdocs.org/data/latest/ntsb_occurrences.parquet' o WHERE o.case_mkey = x.case_mkey AND o.aircrafts_position = x.position AND o.\"occurrenceNumber\" = 1 AND o.\"occurrenceCode\" = 350))
  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."highestInjuryLevel" = 'Fatal'
  AND c."mKey" IN (SELECT x.case_mkey FROM 'https://openairdocs.org/data/latest/ntsb_aircrafts.parquet' x WHERE x.engine_model_code IN ('41533')
    AND EXISTS (SELECT 1 FROM 'https://openairdocs.org/data/latest/ntsb_occurrences.parquet' o WHERE o.case_mkey = x.case_mkey AND o.aircrafts_position = x.position AND o."occurrenceNumber" = 1 AND o."occurrenceCode" = 350))
ORDER BY c."eventDate" DESC, c."ntsbNumber" DESC

Run 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 NYC07FA043Accident · 1 fatalField investigationFinal reportPiper PA-32R-300 · Charlottesville, VAA loss of engine power for undetermined reasons.Dec 10, 2006 · N8349C · Destroyed NTSB SEA06FA139Accident · 1 fatalField investigationFinal reportPiper PA-31-350 · Easton, WAThe loss of power in both engines for undetermined reasons while in cruise flight, leading to an attempted forced landing. Factors include unfavorable winds at the site of the forced landing, and trees off the approach end of the grass runway the pilot was…Jul 11, 2006 · N40ST · Destroyed NTSB CHI04GA130Accident · 1 fatalFinal reportCessna T206H · Homer Glen, ILThe seized turbocharger, the altitude/clearance not maintained/obtained during approach to a forced landing on an agricultural field, and the unsuitable landing area encountered by the pilot. Contributing factors were the inadequate emergency procedures by…May 28, 2004 · N9548D · Destroyed NTSB ATL03FA114Accident · 2 fatalField investigationFinal reportPiper PA-32R-301T · Scottsboro, ALThe pilot's improper fuel management which resulted in a loss of engine power due to fuel starvation and subsequent impact with trees.Jun 19, 2003 · N270LM · Substantial damage NTSB ATL02FA057Accident · 1 fatalField investigationFinal reportPiper PA-32-300 · Hamilton, GAThe loss of engine power for undetermined reasons.Feb 28, 2002 · N33584 · Substantial damage NTSB DEN99FA081Accident · 2 fatalField investigationFinal reportPiper PA-23E-250 · Tucumcari, NMThe pilot's inadvertent stall. A factor was the loss of power of one engine in the twin-engine airplane.May 19, 1999 · N54263 · Destroyed NTSB FTW95FA069Accident · 1 fatalField investigationFinal reportPiper PA-32RT · San Antonio, TXThe loss of engine power for undetermined reasons. A factor related to the accident was: the lack of a suitable area for the forced landing.Dec 18, 1994 · N21590 · Destroyed NTSB NYC87FA225Accident · 1 fatalField investigationFinal reportPiper PA-60-601P · Atlantic City, NJDuring the takeoff roll witnesses observed the aircraft swerve from left to right with the engine(s) 'missing' or intermittent. The aircraft lifted off and climbed to approximately 50 feet AGL and continued across a waterway in a leftturn with the landing…Aug 10, 1987 · N814SG · Destroyed NTSB MIA87FA002Accident · 1 fatalField investigationFinal reportPiper PA-60-600 · Tallahassee, FLWitnesses stated seeing the acft enter a left downwind apch to rwy 16, turn base to final normally then veer to the left of the runway in a nose high attitude & disappear behind a line of trees & crash aprx 500 feet east of rwy 16. Post crash examination of…Oct 2, 1986 · N217HM · Destroyed