NTSB investigations, AK
16 cases where the sequence of events included Flight control sys malf/fail.
Cases per year
| 2008 | 1 |
|---|---|
| 2009 | 1 |
| 2010 | 1 |
| 2011 | 1 |
| 2012 | 1 |
| 2014 | 3 |
| 2015 | 2 |
| 2016 | 1 |
| 2021 | 3 |
| 2022 | 1 |
| 2024 | 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\" = 'AK' AND c.\"eventCountry\" = 'USA'
AND c.\"mKey\" IN (SELECT s.case_mkey FROM 'https://openairdocs.org/data/latest/ntsb_events.parquet' s WHERE s.\"tier2Number\" = '333' AND s.case_mkey IN (SELECT case_mkey FROM 'https://openairdocs.org/data/latest/ntsb_events.parquet' WHERE \"isDefiningEvent\"))
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" = 'AK' AND c."eventCountry" = 'USA' AND c."mKey" IN (SELECT s.case_mkey FROM 'https://openairdocs.org/data/latest/ntsb_events.parquet' s WHERE s."tier2Number" = '333' AND s.case_mkey IN (SELECT case_mkey FROM 'https://openairdocs.org/data/latest/ntsb_events.parquet' WHERE "isDefiningEvent")) ORDER BY c."eventDate" DESC, c."ntsbNumber" DESC
Run 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 ANC25LA008Accident · Serious injuriesClass 3 · LimitedFinal reportCub Crafters CC18-180 · Anchorage, AKThe incorrect installation of the rear flight control stick, resulting in the pilot’s inability to control the pitch attitude, coupled with the pilot’s inadequate control system check before departure, all which resulted in an aerodynamic stall during takeoff.NTSB ERA22LA358Accident · No injuriesClass 3 · LimitedFinal reportCessna 207 · Dillingham, AKMaintenance personnel’s failure to detect and correct improper rudder control system alignment, the resulting interference with the pulley’s rotation, and the accelerated corrosion and wear of the control cable, which ultimately led to its failure in flight.NTSB ANC21LA093Accident · No injuriesClass 4 · LimitedFinal reportPiper PA-22-150 · Chandalar Shelf, AKA separation of the rudder cable from the rudder pedal due to the connecting bolt detaching for undetermined reasons, which resulted in a loss of directional control.NTSB ANC21LA075Accident · Minor injuriesClass 3 · LimitedFinal reportPiper PA-18 · Talkeetna, AKThe malfunction of the control stick during initial climb for reasons that could not be determined based on available evidence.NTSB ANC21LA064Accident · No injuriesClass 3 · LimitedFinal reportPiper PA-14 · Anchorage, AKThe fatigue fracture of the American Iron and Steel Institute (AISI) 1025 carbon steel rudder post, which resulted in structural failure of the rudder. Contributing to the fatigue failure was the post’s susceptibility to fatigue cracking under normal service…NTSB ANC16LA034Accident · No injuriesLimited investigationFinal reportDe Havilland DHC3 · Homer, AKAn in-flight collision with a bald eagle, which resulted in substantial damage to the left wing.NTSB ANC15LA037Accident · No injuriesLimited investigationFinal reportDehavilland DHC-3T · Skwentna, AKThe flutter failure of the right elevator servo tab due to the improper fabrication of the servo tab and maintenance personnel’s subsequent failure to detect anomalies with the servo tab.NTSB ANC15LA015Accident · No injuriesLimited investigationFinal reportAirbus AS350 B2 · Anchorage, AKThe failure of the ball bearing within the pitch change spider assembly due to its operation with no grease within the bearing, which resulted in the subsequent fracture of the spider assembly and a loss of tail rotor control authority. Also causal to the…NTSB ANC15IA006Incident · No injuriesIncident investigationFinal reportCessna 180J · Nome, AKThe disengagement and subsequent binding of the right tailwheel steering cable, which disabled the rudder system.NTSB ANC14FA050Accident · 1 fatalField investigationFinal reportPiper PA 12 · Anchorage, AKThe incorrect (reverse) rigging of the elevator control cables, and the pilot’s inadequate preflight inspection, which failed to detect the misrigging.NTSB ANC14LA035Accident · No injuriesLimited investigationFinal reportDehavilland DHC-3T · Homer, AKThe flutter failure of the right elevator servo tab due to the improper fabrication of the servo tab and maintenance personnel’s subsequent failure to detect anomalies with the servo tab.NTSB DCA12CA042Accident · No injuriesData collectionFinal reportEmbraer EMB120 · Iliamna, AKthe maintenance personnel's failure to install the cotter pins that secured castellated nuts on the left elevator vertical hinge bolts, which resulted in the left elevator partially detaching in flight. Contributing to the accident was the failure of…NTSB ANC11LA041Accident · No injuriesLimited investigationFinal reportEclipse EA500 · Nome, AKThe pilot landed without lowering the landing gear. Contributing to the accident was the pilot's decision to fly the airplane with an inoperative wing flap system.NTSB ANC10CA037Accident · No injuriesData collectionFinal reportPiper PA-18-150 · Port Moller, AKThe loss of the left rudder cable retaining bolt during base to final turn, resulting in a loss of control and impact with terrain.NTSB ANC09CA094Accident · No injuriesData collectionFinal reportPiper PA-18-150 · Fairbanks, AKA tailwheel malfunction that limited directional control, which resulted in a runway excursion, and collision with a building.NTSB ANC08LA083Accident · No injuriesLimited investigationFinal reportBell UH-1B · Iliamna, AKThe failure of company maintenance personnel to ensure the helicopter was properly maintained, resulting in a severe in-flight vibration due to collective bounce. Contributing to the accident was loose and worn bearings on the helicopter's stabilizer bar,…