NTSB investigations: Lycoming T-53 series, WA
10 cases on aircraft whose registry engine model is Lycoming T-53 series. 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.
Cases per year
| 1978 | 1 |
|---|---|
| 1990 | 1 |
| 1997 | 1 |
| 1998 | 1 |
| 2004 | 1 |
| 2005 | 1 |
| 2006 | 1 |
| 2014 | 1 |
| 2015 | 1 |
| 2022 | 1 |
Where
Open the mapLatest cases
Query with SQL
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\" = 'WA' 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 ('41552', '41549', '41587'))
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" = 'WA' 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 ('41552', '41549', '41587'))
ORDER BY c."eventDate" DESC, c."ntsbNumber" DESCRun 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 WPR22LA339Accident · Minor injuriesClass 3 · LimitedFinal reportBell 205A-1 · Cougar, WAThe helicopter’s encounter with downdrafts during a low-altitude hovering maneuver while dipping for water.NTSB WPR15LA219Accident · Minor injuriesLimited investigationFinal reportGarlick UH1H · Walla Walla, WAThe helicopter’s reduction in aerodynamic lift while operating in variable wind conditions for reasons that could not be determined because postaccident examination did not reveal any evidence of preimpact mechanical malfunctions or failures that would have…NTSB WPR14LA206Accident · Minor injuriesLimited investigationFinal reportWilliams Helicopter UH 1H · Waitsburg, WAAn extreme vibration immediately after entering forward flight for reasons that could not be determined because postaccident examination of the helicopter did not reveal any anomalies that would have precluded normal operation. Contributing to the accident…NTSB SEA06LA162Accident · 1 fatalLimited investigationFinal reportKaman HH-43F · Metaline Falls, WAThe failure of the left-hand cross-shaft input internal spline while the helicopter was in a hover, which resulted in the loss of gear box timing, in-flight blade contact and separation, and the subsequent loss of control and impact with a log deck.NTSB SEA05CA086Accident · No injuriesData collectionFinal reportWilliams Helicopter UH-1B · Uniontown, WAThe pilot's failure to maintain clearance from an object while maneuvering, which resulted in the main rotor blades striking a power pole. The power pole was a factor in the accident.NTSB SEA04LA043Accident · Serious injuriesLimited investigationFinal reportGarlick UH-1H · Liberty, WAThe failure of the tail rotor slider lugs due to fatigue while the helicopter was maneuvering.NTSB SEA99LA020Accident · Serious injuriesLimited investigationFinal reportGarlick UH-1H · Darrington, WAThe total separation of the vertical fin (stabilizer), as the result of fatigue cracks which initiated in the fourth rivet hole above where the fin extends from the tailboom.NTSB SEA97FA196Accident · 1 fatalField investigationFinal reportSouthern Aero UH-1B · Skykomish, WAA fatigue fracture in the main rotor mast, which resulted in an in flight separation of the main rotor from the helicopter. Contributing to the accident was insufficient Federal Aviation Administration airworthiness standards and requirements for the aircraft.NTSB SEA90TL#03Accident · No injuriesClass 3Final reportBell UH-1B · Yakima, WANTSB SEA78FYE05Accident · Minor injuriesClosedBell 205A-1 · Castle Rock, WA