Final NTSB investigations: Interstate S-1B1

11 cases on aircraft the registry lists as Interstate S-1B1. 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

19682026
Final NTSB investigations: Interstate S-1B1 per year, 1968–2026: 11 cases
19681
19702
19721
19741
19761
19861
19941
19991
20021
20131

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.\"completionStatus\" = 'Completed'
    AND c.\"mKey\" IN (SELECT x.case_mkey FROM 'https://openairdocs.org/data/latest/ntsb_aircrafts.parquet' x WHERE x.aircraft_model_code IN ('1850302'))
  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 ERA13LA366Accident · No injuriesLimited investigationFinal reportInterstate S-1B1 · Lititz, PAThe pilot’s failure to control the airplane’s pitch attitude, which resulted in an aerodynamic stall during the initial takeoff climb. Contributing to the accident was the pilot’s failure to set the trim in accordance with the pretakeoff checklist and the…Aug 17, 2013 · N46336 · Substantial damageNTSB ANC02LA026Accident · No injuriesLimited investigationFinal reportInterstate S-1B1 · Big Lake, AKThe separation of the exhaust system stack from the heat exchanger. A factor associated with the accident was an engine compartment fire.Mar 29, 2002 · N48027 · Substantial damageNTSB ANC99LA030Accident · Minor injuriesLimited investigationFinal reportInterstate S-1B1 · Anchorage, AKFuel starvation resulting from the pilot not understanding the fuel system procedures, and selecting the improper fuel selector position.Mar 4, 1999 · N48027 · Substantial damageNTSB FTW94FA102Accident · 4 fatalField investigationFinal reportTaylorcraft DCO-65 · San Antonio, TXThe failure of the pilot of the other aircraft to maintain adequate clearance during formation flight. A factor was the pilot's inadequate preflight planning and preparation regarding inflight formation procedures.Mar 19, 1994 · N596BH · 2 aircraft · DestroyedNTSB ANC87LA007Accident · 1 fatalLimited investigationFinal reportInterstate S-1B1 · Eureka Creek, AKThe pilot lost control of the aircraft on landing & it collided with a large metal sluice box that was located beside the runway. At the time of the accident, the wind was from the northeast & was gusty. The dirt ruway was frozen, rough &rutted.Oct 21, 1986 · N46243 · Substantial damageNTSB ANC76FAG94Accident · No injuriesClosedInterstate S1B1 · Wasilla, AKFeb 26, 1976 · N46618 · Substantial damageNTSB MKC75DTG07Accident · No injuriesClosedInterstate S-1B1 · Williston, NDJul 28, 1974 · N49066 · Substantial damageNTSB ANC72AA037Accident · 1 fatalClosedInterstate S-1B1 · Skwentna, AKMar 11, 1972 · N46962 · DestroyedNTSB ANC71DAG62Accident · No injuriesClosedInterstate S-1B1 · Talkeetna, AKNov 26, 1970 · N46962 · Substantial damageNTSB OAK71DVD03Accident · No injuriesClosedInterstate S-1B1 · Tracy, CAAug 8, 1970 · N49208 · Substantial damageNTSB DEN69A0012Accident · 1 fatalClosedInterstate S-1A · Bitter Creek, WYSep 16, 1968 · N37455 · 2 aircraft · Destroyed