NTSB investigations: Lycoming 0-540 series, CA

8 cases on aircraft whose registry engine model is Lycoming 0-540 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

19822026

NTSB investigations: Lycoming 0-540 series, CA per year, 1982–2026: 8 cases
1982	1
1983	1
1985	1
1997	1
2000	1
2001	3

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."eventStateOrRegion" = 'CA' 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 ('41532') 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.\"eventStateOrRegion\" = 'CA' 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 ('41532')
      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."eventStateOrRegion" = 'CA' 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 ('41532')
    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 LAX02LA050Accident · No injuriesLimited investigationFinal reportCessna R182 · Santa Maria, CAInadequate maintenance and inspection of the engine dual magneto that resulted in a loss of engine power during a critical phase of flight, and the subsequent undershoot forced landing in soft terrain.Dec 17, 2001 · N7317X · Substantial damage NTSB LAX02LA022Accident · No injuriesLimited investigationFinal reportPiper PA-32-260 · Avalon, CAthe total loss of engine power during departure climb for undetermined reasons.Nov 4, 2001 · N3516W · Substantial damage NTSB LAX01LA097Accident · No injuriesLimited investigationFinal reportPiper PA-24-250 · Petaluma, CAFailure of non-airframe and powerplant mechanic/certificated owners to properly install a new mixture cable that became entangled in the nose landing gear during its extension for landing, resulting in a loss of engine power.Feb 14, 2001 · N8286P · Substantial damage NTSB LAX00LA247Accident · Minor injuriesLimited investigationFinal reportPiper PA-32-260 · Chester, CAThe loss of engine power for undetermined reasons.Jun 30, 2000 · N933AC · Destroyed NTSB LAX97LA279Accident · No injuriesLimited investigationFinal reportPiper PA-24-250 · San Diego, CAa loss of engine power for undetermined reasons.Aug 9, 1997 · N711EW · Substantial damage NTSB LAX85LA303Accident · No injuriesLimited investigationFinal reportPiper PA-24-250 · Santa Maria, CAThe pilot reported to the tower, while on base leg, that he was out of fuel. He then landed short and contacted a fence and a tree on the landing roll. The pilot stated that the aircraft contained 45 gallons of fuel when he departed and that he had flown for…Jul 4, 1985 · N7198P · Substantial damage NTSB LAX83LA071Accident · Serious injuriesLimited investigationFinal reportPiper PA-24-250 · El Cajon, CAShortly after takeoff, at an altitude of aprx 300 ft AGL, the eng lost power. The plt turned & landed wheels-up on an unimproved grass area on the southwest corner of the arpt. An exam of the eng & fuel systems revealed no evidence of a preimpact/mechanical…Jan 15, 1983 · N5730P · Substantial damage NTSB LAX82DA198Accident · No injuriesFinal reportPiper PA-24-250 · Apple Valley, CADuring a flight from saint george, ut to imperial, GA, the pilot encountered fog as he approached el cajon pass, south of Apple Valley, CA. He attempted to go under the fog but was unable. He reversed course and headed back toward Apple Valley. As he was…May 28, 1982 · N6503P · Substantial damage