OpenAirDocs.org

Instrument flight capability

Open the Markdown

NTSB finding · Aircraft › Aircraft oper/perf/capability › Aircraft capability

All 10 cases6 in the probable cause
Cases
10
In the probable cause
6 (60%)
Fatal cases
8
NTSB code
01061055

NTSB has coded findings and defining events since 2008. Earlier cases used its older occurrence and cause codes, so they aren’t counted here.

When and where

In green, cases where NTSB made it part of the probable cause; in gray, a factor or other finding. Findings are coded with the final report, often a year or more after the event, so the latest years are incomplete.

Cases per year

2008In the probable causeFactor only2026

Where

Open the map
Query with SQL
duckdb -csv -c "SELECT year(c.\"eventDate\") AS year, count(DISTINCT f.case_mkey) AS cases,
    count(DISTINCT f.case_mkey) FILTER (WHERE f.\"inProbableCause\") AS in_probable_cause
  FROM 'https://openairdocs.org/data/latest/ntsb_findings.parquet' f JOIN 'https://openairdocs.org/data/latest/ntsb_case_detail.parquet' c ON c.\"mKey\" = f.case_mkey
  WHERE starts_with(f.\"findingCode\", '01061055') AND c.\"eventDate\" >= DATE '2000-01-01'
  GROUP BY 1
  ORDER BY 1"

Prints the counts as CSV. It reads the release’s Parquet files over HTTPS, so there’s nothing to download first. Install DuckDB to run it.

In the same cases

Defining events
Aircraft models

Aircraft matched to the registry by N-number and date.

Other findings
Query with SQL
duckdb -csv -c "WITH matched AS (SELECT DISTINCT case_mkey, aircrafts_position FROM 'https://openairdocs.org/data/latest/ntsb_findings.parquet' WHERE starts_with(\"findingCode\", '01061055'))
  SELECT * FROM (
  SELECT 'Defining event' AS kind, e.\"tier2Number\" AS code, max(e.\"eventTier2Name\") AS name, count(DISTINCT f.case_mkey) AS cases
  FROM matched f JOIN 'https://openairdocs.org/data/latest/ntsb_events.parquet' e ON e.case_mkey = f.case_mkey AND e.aircrafts_position = f.aircrafts_position AND e.\"isDefiningEvent\"
  WHERE e.\"tier2Number\" <> ''
  GROUP BY ALL
  UNION ALL
  SELECT 'Aircraft model', a.aircraft_model_code, any_value(concat_ws(' ', m.manufacturer, m.model)), count(DISTINCT f.case_mkey)
  FROM matched f JOIN 'https://openairdocs.org/data/latest/ntsb_aircrafts.parquet' a ON a.case_mkey = f.case_mkey AND a.position = f.aircrafts_position
  LEFT JOIN 'https://openairdocs.org/data/latest/faa_aircraft_model.parquet' m ON m.code = a.aircraft_model_code
  WHERE a.aircraft_model_code IS NOT NULL
  GROUP BY ALL
  UNION ALL
  SELECT 'Other finding', left(g.\"findingCode\", 8), max(g.\"tier4Name\"), count(DISTINCT g.case_mkey)
  FROM 'https://openairdocs.org/data/latest/ntsb_findings.parquet' g
  WHERE g.case_mkey IN (SELECT case_mkey FROM matched) AND NOT starts_with(g.\"findingCode\", '01061055') AND g.\"findingCode\" GLOB '[0-9][0-9]*'
  GROUP BY ALL
  )
  QUALIFY row_number() OVER (PARTITION BY kind ORDER BY cases DESC) <= 10
  ORDER BY kind, cases DESC"

Prints the counts as CSV. It reads the release’s Parquet files over HTTPS, so there’s nothing to download first. Install DuckDB to run it.

Newest cases · 10

NTSB CEN24FA327Accident · 1 fatalClass 3 · FieldFinal reportPiper PA-28-140 · Wayne, NEThe non-instrument-rated pilot’s encounter with instrument meteorological conditions, which resulted in spatial disorientation and a loss of control.Aug 26, 2024 · N9626K · DestroyedNTSB ERA22LA180Accident · Minor injuriesClass 4 · LimitedFinal reportHughes 269A · Fort White, FLThe non-instrument-rated pilot’s decision to fly a visual flight rules only helicopter in instrument meteorological conditions, which resulted in a collision with trees and terrain.Apr 2, 2022 · N7057L · Substantial damageNTSB ANC21FA069Accident · 6 fatalClass 2 · FieldFinal reportDehavilland DHC-2 MK.I · Ketchikan, AKThe pilot’s decision to continue visual flight rules (VFR) flight into instrument meteorological conditions (IMC), which resulted in controlled flight into terrain. Contributing to the accident was the FAA’s reliance on voluntary compliance with the Ketchikan…Aug 5, 2021 · N1249K · DestroyedNTSB ERA21LA295Accident · 2 fatalClass 3 · LimitedFinal reportRobinson Helicopter R44 II · Point Harbor, NCThe noncertificated pilot’s decision to continue visual flight rules flight into instrument meteorological conditions, which resulted in spatial disorientation over a large body of water and a high velocity impact with the water. Contributing to the accident…Jul 19, 2021 · N4529J · DestroyedNTSB ERA20FA088Accident · 1 fatalClass 3 · FieldFinal reportAeropro CZ A220 · Grafton, WVThe pilot’s decision to continue a visual flight rules flight into instrument meteorological conditions and conditions favorable for airframe icing, which resulted in a loss of control of the airplane.Jan 27, 2020 · N214K · DestroyedNTSB CEN17FA288Accident · 2 fatalField investigationFinal reportZenith CH701SP · Laddonia, MOThe pilot's decision to take off at night and continue visual flight into instrument meteorological conditions. which resulted in the pilot becoming spatially disoriented and losing control of the airplane. Contributing to the accident were the pilot's…Jul 27, 2017 · N701XL · DestroyedNTSB ERA17FA017Accident · 3 fatalField investigationFinal reportPiper PA28 · Austin, PAThe pilot's loss of control while maneuvering in night instrument conditions that included light-to-heavy rain with severe turbulence, updrafts and downdrafts, and hail. Contributing to the accident was the pilot experiencing spatial disorientation, his lack…Oct 16, 2016 · C-GYSN · DestroyedNTSB ERA16FA074Accident · 2 fatalField investigationFinal reportHinton Paul M RV 4 · Greenville, FLThe pilot's decision to initiate the flight into known adverse weather conditions, in an airplane that was not approved for instrument flight, which resulted in an encounter with instrument meteorological conditions and his subsequent spatial disorientation…Dec 18, 2015 · N77BP · DestroyedNTSB GAA16LA031Accident · No injuriesLimited investigationFinal reportAirbus AS350 · Deadhorse, AKThe noninstrument-rated pilot's continued visual flight into adverse weather conditions, which resulted in spatial disorientation, and his subsequent failure to maintain terrain clearance while attempting to land in flat light and whiteout conditions.Oct 27, 2015 · C-GSLY · Substantial damageNTSB CHI08LA080Accident · 1 fatalLimited investigationFinal reportCessna 140 · Grand Meadow, MNThe pilot's continued visual flight into an area of known instrument meteorological conditions in an airplane not equipped for instrument flight, and his failure to maintain control of the airplane while maneuvering at low altitude.Feb 8, 2008 · N3537V · Substantial damage
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 f.case_mkey FROM 'https://openairdocs.org/data/latest/ntsb_findings.parquet' f WHERE starts_with(f.\"findingCode\", '01061055'))
  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.