NTSB investigations: Beech S35

5 cases on aircraft the registry lists as Beech S35, where the first occurrence was “Loss of engine power(total) - mech failure/malf”. 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

19862026
NTSB investigations: Beech S35 per year, 1986–2026: 5 cases
19861
19951
20042
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 ('1151532')
      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\" = 351))
  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 CHI07LA127Accident · No injuriesLimited investigationFinal reportBeech S35 · Brookfield, MOImproper maintenance by maintenance personnel by not properly torquing cylinder thru-bolts. The loose stud nuts which resulted in the separation of the cylinder and the crop and ditch were factors.Apr 30, 2007 · N8820M · Substantial damageNTSB CHI05FA048Accident · 2 fatalField investigationFinal reportBeech S35 · Herman, WIThe installation of the improper cylinder base packing seals by maintenance personnel resulting in the loss of lubriation and subsequent failure of the number four connecting rod/bearing. A factor associated with the accident was the trees that the airplane…Dec 25, 2004 · N5631K · Substantial damageNTSB LAX04LA232Accident · No injuriesLimited investigationFinal reportBeech S35 · Flagstaff, AZoil exhaustion due to a leak from the bottom oil drain line gasket and o-ring for the turbo charger.Jun 5, 2004 · N6127Q · Substantial damageNTSB SEA95LA050Accident · No injuriesLimited investigationFinal reportBeech S-35 · Wolf Point, MTThe loss of power due to lost oil pressure and a failed connecting rod. Factors include fence posts and dusk lighting conditions which limited visibility.Feb 11, 1995 · N8828M · Substantial damageNTSB NYC86LA090Accident · Minor injuriesLimited investigationFinal reportBeech S35 · Laconia, NHDuring cruise flt, the acft eng failed & oil covered the windshield & side windows. Subsequently, the acft crash landed into wooded terrain while in a wings level attitude at low speed. Tests showed the eng crankshaft had failed from fatigue. The fatigue…Mar 22, 1986 · N5629K · Substantial damage