NTSB investigations: Wright R-1820 series

6 cases on aircraft whose registry engine model is Wright R-1820 series, where the first occurrence was “Loss of control - on ground/water”. 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: Wright R-1820 series per year, 1983–2026: 6 cases
1983	1
1987	2
1995	1
1996	1
1998	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 ('67020') 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" = 260)) 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 ('67020')
      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\" = 260))
  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 ('67020')
    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" = 260))
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 LAX98LA313Accident · No injuriesLimited investigationFinal reportGrumman HU-16C · Sedona, AZThe pilot in command's selection of the wrong runway for the prevailing wind conditions, and the second pilot's inadequate compensation for the winds. Factors in the accident were the second pilot's lack of experience in the aircraft and the…Sep 26, 1998 · N7025J · Substantial damage NTSB FTW96LA333Accident · No injuriesLimited investigationFinal reportEmroth-Emair MA-1B · Clayton, LAThe pilot's failure to maintain directional control during the takeoff roll. A factor was the wet grass runway.Aug 4, 1996 · N9918M · Substantial damage NTSB MIA96LA017Accident · No injuriesLimited investigationFinal reportBoeing B-17G · Fayetteville, NCthe failure of the airplane's normal brake system due to the open position of the pressure relief valve. Contributing to the accident was the pilot in command's premature engine shutdown resulting in the airplane colliding with the localizer building.Nov 3, 1995 · N3703G · Substantial damage NTSB LAX87DJA07Accident · No injuriesFinal reportEmair MA-1B · Pahala, HIAt the end of an aerial application flt, the plt reported that after approaching the arpt in a light rain, he failed to keep the acft centered on the rwy. The acft exited the rwy to the left where it collided with the terrain and nosed over. There were no…Jul 27, 1987 · N9919M · Substantial damage NTSB FTW87LA114Accident · No injuriesLimited investigationFinal reportAyres S2R-1820 · Ville Platte, LAAfter landing on a wet grass strip the pilot realized that the aircraft was not going to stop. Obstructions off the end of the runway prevented a go-around. The aircraft collided with two trees causing substantial damage.May 7, 1987 · N4025P · Substantial damage NTSB LAX83FVG14Accident · Serious injuriesFinal reportSikorsky S-58 · Biggs, CAThe plt reported that he brought the helicopter to a hover in the loading area & eased forward to the rwy where he attempted to 'transition from a hover to flt.' He became aware that the helicopter was not going to have sufficient performance, so he elected…Jul 14, 1983 · N9043P · Destroyed