NTSB investigations: Pratt & Whitney R-985 series, AZ

5 cases on aircraft whose registry engine model is Pratt & Whitney R-985 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

19822026

NTSB investigations: Pratt & Whitney R-985 series, AZ per year, 1982–2026: 5 cases
1982	1
1984	1
1992	1
2003	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."eventStateOrRegion" = 'AZ' 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 ('52008') 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.\"eventStateOrRegion\" = 'AZ' 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 ('52008')
      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."eventStateOrRegion" = 'AZ' 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 ('52008')
    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 LAX03LA195Accident · No injuriesLimited investigationFinal reportBoeing Stearman E75 · Casa Grande, AZThe pilot's inadequate compensation for the wind conditions, and his failure to maintain aircraft control resulting in an inadvertent ground loop.Jun 12, 2003 · N6030V · Substantial damage NTSB LAX03LA064Accident · Minor injuriesLimited investigationFinal reportWaco SRE · Prescott, AZThe pilot's failure to maintain directional control during landing resulting in a collision with a runway sign. Factors in the accident were the tailwind and the malfunctioning brake system.Jan 10, 2003 · N1252W · Substantial damage NTSB LAX92LA177Accident · No injuriesLimited investigationFinal reportBeech E18S · Eloy, AZFailure of the pilot-in-command to maintain directional control and to properly compensate for the unfavorable wind conditions encountered during the takeoff ground run. Contributing to the accident was the unforecasted dust devil weather phenomena.Apr 16, 1992 · N711DN · Substantial damage NTSB LAX84LA128Accident · No injuriesLimited investigationFinal reportBeech C-45H · Coolidge, AZThe plt stated that during the initial application of power, the left eng backfired due to a possible too sudden application of power. He said that due to 'inattention' he let the acft 'drift to the left side of the runway.' Just after the acft became…Jan 2, 1984 · N3736G · Substantial damage NTSB LAX82DA096Accident · No injuriesFinal reportHoward DGA-15P · Mesa, AZWhile approaching the destination airport, the owner/pilot asked the instructor pilot to land the aircraft. The instructor reported that he maintained a slightly higher than normal airspeed on final approach to compensate for variable wind conditions. He…Mar 7, 1982 · N67771 · Substantial damage