NTSB investigations: Weatherly 620B

8 cases on aircraft the registry lists as Weatherly 620B, where the first occurrence was “In flight collision with object”. 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

19952026
NTSB investigations: Weatherly 620B per year, 1995–2026: 8 cases
19951
19971
19992
20001
20011
20051
20071

Latest 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.\"mKey\" IN (SELECT x.case_mkey FROM 'https://openairdocs.org/data/latest/ntsb_aircrafts.parquet' x WHERE x.aircraft_model_code IN ('9630605', '9630607')
      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\" = 220))
  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.

NTSB CHI07LA207Accident · 1 fatalLimited investigationFinal reportWeatherly 620B · Wyoming, ILThe pilot's failure to maintain clearance with the power lines during the aerial application flight. Contributing to the accident were the power lines and the low altitude.Jul 13, 2007 · N9026E · Substantial damageNTSB SEA05CA132Accident · No injuriesData collectionFinal reportWeatherly 620B · Teton, IDThe pilot's failure to maintain clearance from power transmission lines while maneuvering.Jun 25, 2005 · N2021V · Substantial damageNTSB LAX01LA268Accident · No injuriesLimited investigationFinal reportWeatherly 620B · Winnemucca, NVthe pilot's failure to maintain clearance with the wires while he was maneuvering for an aerial application run.Aug 4, 2001 · N90191 · Substantial damageNTSB SEA00LA051Accident · 1 fatalLimited investigationFinal reportWeatherly 620B · Odell, ORThe pilot's failure to maintain sufficient altitude over, or clearance with, a tree. Factors contributing to the occurrence of the accident were the tree and sharply rising terrain. A factor contributing to the severity of the accident was a post-crash fuel…Mar 13, 2000 · N9040V · DestroyedNTSB CHI99LA214Accident · No injuriesLimited investigationFinal reportWeatherly 620B · Timber Lake, SDthe pilots selection of the shorter runway and his failure to abort the takeoff. Factors to the accident were the high density altitude, the fence and the fence posts.Jul 6, 1999 · N350WR · Substantial damageNTSB LAX99LA107Accident · 1 fatalLimited investigationFinal reportWeatherly 620B · Yuma, AZThe pilot's failure to maintain an adequate clearance from the power lines during an aerial application flight. A factor in the accident was the dark night lighting conditions.Feb 20, 1999 · N2014U · DestroyedNTSB FTW98FA028Accident · 1 fatalField investigationFinal reportWeatherly 620B · Cee Vee, TXThe pilot's failure to maintain clearance with the power lines during an aerial application flight.Oct 22, 1997 · N46278 · DestroyedNTSB FTW95FA231Accident · 1 fatalField investigationFinal reportWeatherly 620B · Flagler, COFailure by the pilot to maintain clearance from the static line of a power transmission array during an aerial application flight.Jun 6, 1995 · N20119 · Destroyed