NTSB investigations: Lycoming TI0-541 series

6 cases on aircraft whose registry engine model is Lycoming TI0-541 series, where the first occurrence was “Airframe/component/system failure/malfunction”. 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

19832026

NTSB investigations: Lycoming TI0-541 series per year, 1983–2026: 6 cases
1983	1
1993	1
1995	1
2000	1
2004	1
2007	1

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."mKey" IN (SELECT x.case_mkey FROM 'https://openairdocs.org/data/latest/ntsb_aircrafts.parquet' x WHERE x.engine_model_code IN ('41536') 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" = 130)) 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.\"mKey\" IN (SELECT x.case_mkey FROM 'https://openairdocs.org/data/latest/ntsb_aircrafts.parquet' x WHERE x.engine_model_code IN ('41536')
      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\" = 130))
  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."mKey" IN (SELECT x.case_mkey FROM 'https://openairdocs.org/data/latest/ntsb_aircrafts.parquet' x WHERE x.engine_model_code IN ('41536')
    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" = 130))
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 NYC08FA051Accident · 1 fatalField investigationFinal reportBeech 60 · New Castle, DEThe pilot's failure to maintain adequate airspeed during a split flap takeoff, which resulted in an aerodynamic stall. Contributing to the accident were the failure of the right flap drive mechanism and the pilot's failure to verify that both flaps were…Dec 4, 2007 · N105PP · Destroyed NTSB DEN04LA140Accident · No injuriesLimited investigationFinal reportBeech B-60 · Casper, WYthe missing nose gear assembly bolt, spacer and nut resulting in a gear collapse due to improper maintenance procedures. Contributing to the accident was the collision with the storm drain.Sep 8, 2004 · N1551L · Substantial damage NTSB FTW00LA095Accident · No injuriesLimited investigationFinal reportBeech 65-B80 · Midland, TXThe separation of the right main landing gear tire tread which resulted in damage to the right main landing gear mounting structure.Mar 10, 2000 · N8071R · Substantial damage NTSB FTW95FA177Accident · 1 fatalField investigationFinal reportBeech 60 · Cheyenne, WYThe pilot's failure to maintain aircraft control. Factors were the instrument weather conditons and the excessive workload imposed on the solo pilot attempting to deal with an emergency situation while flying in instrument meteorological conditions.Apr 21, 1995 · N711PS · Destroyed NTSB CHI93LA145Accident · No injuriesLimited investigationFinal reportPiper PA-31-310 · Port Huron, MIfailure of the landing gear actuator cable.Apr 22, 1993 · N654N · Substantial damage NTSB LAX83LA167Accident · No injuriesLimited investigationFinal reportBeech A56TC · Lost Hills, CAThe plt stated that during the landing roll-out, the left main tire blew out and before the plane was stopped, the left main gear collapsed. Reportedly, he had made a normal approach and did not use heavy braking action. The 2 passengers and a witness…Mar 29, 1983 · N9092Q · Substantial damage