NTSB investigations: Pratt & Whitney W-S1H&S3H, AK

5 cases on aircraft whose registry engine model is Pratt & Whitney W-S1H&S3H. 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

19642026

NTSB investigations: Pratt & Whitney W-S1H&S3H, AK per year, 1964–2026: 5 cases
1964	1
1965	1
1982	1
1989	1
1992	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."eventStateOrRegion" = 'AK' 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 ('52012')) 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\" = 'AK' 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 ('52012'))
  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" = 'AK' 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 ('52012'))
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 ANC92LA109Accident · No injuriesLimited investigationFinal reportDe Havilland DHC-3 · Mcgrath, AKThe fire in the engine accessory drive assembly. Factor was the rough an uneven forced landing area.Jul 22, 1992 · N41755 · Substantial damage NTSB ANC89IA099Incident · No injuriesIncident investigationFinal reportDe Havilland DHC-3 · Palmer, AKInadequate lubrication which resulted in the failure of the horizontal stabilizer's trim actuator.Jun 20, 1989 · N41755 · No damage NTSB ANC82FA081Accident · No injuriesField investigationFinal reportde Havilland DHC-3 · Near Skwentna, AKThe acft experienced a power loss & a forced landing was made on a sandbar. During the landing roll the acft struck a log, folding the main gear. Eng teardown revealed a failed no.4 articulating rod. The rod separated just above the knuckle pin area.Sep 1, 1982 · N41755 · Substantial damage NTSB ANC66A0024Accident · No injuriesClosedGrumman G-73 · Bethel, AKDec 20, 1965 · N1208 · Substantial damage NTSB ANC65I0030Incident · No injuriesClosedGrumman G-73 · Bethel, AKDec 4, 1964 · N1208 · Minor damage