NTSB investigations, AK
173 cases where the first occurrence was “Airframe/component/system failure/malfunction”.
Cases per year
| 1982 | 8 |
|---|---|
| 1983 | 10 |
| 1984 | 12 |
| 1985 | 7 |
| 1986 | 3 |
| 1987 | 3 |
| 1988 | 5 |
| 1989 | 10 |
| 1990 | 7 |
| 1991 | 3 |
| 1992 | 10 |
| 1993 | 7 |
| 1994 | 2 |
| 1995 | 5 |
| 1996 | 3 |
| 1997 | 11 |
| 1998 | 9 |
| 1999 | 4 |
| 2000 | 8 |
| 2001 | 7 |
| 2002 | 10 |
| 2003 | 6 |
| 2004 | 3 |
| 2005 | 12 |
| 2006 | 2 |
| 2007 | 6 |
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 o.case_mkey FROM 'https://openairdocs.org/data/latest/ntsb_occurrences.parquet' o WHERE o.\"occurrenceNumber\" = 1 AND o.\"occurrenceCode\" = 130)
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 o.case_mkey FROM 'https://openairdocs.org/data/latest/ntsb_occurrences.parquet' o WHERE o."occurrenceNumber" = 1 AND o."occurrenceCode" = 130) 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 ANC07FA109Accident · 4 fatalField investigationFinal reportHelio H-295 · King Salmon, AKA corrosion-induced fatigue fracture of the airplane's left wing to fuselage attachment cap fitting, which resulted in a partial separation of the left wing, and an uncontrolled descent.NTSB ANC07LA060Accident · No injuriesLimited investigationFinal reportPiper PA-18 · Talkeetna, AKA fracture and collapse of the main landing gear. Contributing to the accident was an inadequate annual inspection by other maintenance personnel, and corrosion.NTSB ANC07LA059Accident · No injuriesLimited investigationFinal reportPiper PA-31 · Kotzebue, AKLocked parking brakes and the operator's maintenance personnel's failure to properly secure the parking brake cable at its fuselage attaching clamp.NTSB ANC07LA038Accident · No injuriesLimited investigationFinal reportPiper PA-32 · Kenai, AKThe left main landing gear attaching bolts sheared during landing, which resulted in the left main landing gear collapsing and the left wing and the stabilator striking the ground.NTSB ANC07LA035Accident · No injuriesLimited investigationFinal reportCessna A185F · Haines, AKThe main landing gear attachment bolts to the right ski sheared during the landing roll in deep snow, resulting in a nose down, and structural damage to the right wing and aileron.NTSB ANC07LA021Accident · No injuriesLimited investigationFinal reportCessna 402C · Cordova, AKThe failure of the right main landing gear linkage during the landing roll, which resulted in a loss of directional control and the collapse of the right main landing gear. A factor associated with the accident was the failure of company maintenance personnel…NTSB ANC06LA143Accident · No injuriesLimited investigationFinal reportPiper PA-32-300 · Fairbanks, AKThe fracture of the aluminum alloy landing gear adapter assembly, which resulted in a loss of control during the landing roll.NTSB ANC06LA070Accident · No injuriesLimited investigationFinal reportPiper PA-18-150 · Birchwood, AKThe pilot's improper servicing/adjustment of the main landing gear brakes, which resulted in a locked brake and a loss of control while taxiing.NTSB ANC06TA009Accident · Minor injuriesFinal reportCessna 185 · Cordova, AKA fracture and separation of the main landing gear strut during the landing roll, which resulted in a loss of control, and subsequent nose down. Factors contributing to the accident were the manufacturer's and the FAA's insufficient standards/requirements…NTSB ANC05LA143Accident · No injuriesLimited investigationFinal reportCessna 180C · Igiugig, AKThe failure of the airplane's starter to disengage, which resulted in an overheated starter, smoke in the cockpit, and an emergency landing. A factor associated with the accident was soft terrain encountered during the emergency landing.NTSB ANC05LA136Accident · No injuriesLimited investigationFinal reportCessna 207 · Kotzebue, AKThe failure of the nose gear steering mechanism during the landing roll, which resulted in a loss of control and subsequent encounter with the runway.NTSB ANC05LA128Accident · No injuriesLimited investigationFinal reportGardner SR3500 · Anchorage, AKThe malfunction of the propeller reversing system during landing, which allowed the propeller to reverse pitch in-flight, resulting in an uncontrolled descent and impact with terrain.NTSB ANC05LA097Accident · No injuriesLimited investigationFinal reportHelio H-250 · Anchorage, AKA fracture failure of the main landing gear leg during the landing roll, which resulted in the collapse of the main landing gear.NTSB ANC05LA087Accident · No injuriesLimited investigationFinal reportCessna U206F · Homer, AKThe fracture of the airplane's nose gear scissor during landing, which resulted in a loss of control during the landing roll, and a nose down. A factor associated with the accident was the loss of nosewheel steering control.NTSB ANC05LA075Accident · No injuriesLimited investigationFinal reportPiper PA-31-350 · Elim, AKAn improper installation of a fuel line fitting by company maintenance personnel, which resulted in a fuel leak and subsequent in-flight engine compartment fire during cruise flight that was discovered during the landing roll.NTSB ANC05IA064Incident · No injuriesIncident investigationFinal reportMcDonnell Douglas MD-11 · Anchorage, AKThe inadequate installation of the cockpit security door locking device, which resulted in smoke in the cockpit during normal cruise, and a precautionary landing. A factor associated with the incident was the manufacturer's insufficiently defined installation…NTSB ANC05LA055Accident · No injuriesLimited investigationFinal reportBritten-Norman BN-2A Islander · Klawock, AKThe fracture of the aluminum alloy landing gear bracket assembly, which resulted in a loss of control during the landing roll.NTSB ANC05LA051Accident · No injuriesLimited investigationFinal reportArctic S-1B2 · Anchorage, AKA main landing gear collapse during the landing touch down due to a non-secured clevis bolt at the common attach point on the landing gear oleo shock.NTSB ANC05IA048Incident · No injuriesIncident investigationFinal reportReims F406 · Nome, AKThe failure of the nose gear up lock actuator bracket during the landing approach due to fatigue cracking, which resulted in a nose wheel up landing. A factor associated with the incident is the mechanical binding of the nose wheel locking mechanism.NTSB ANC05LA046Accident · No injuriesLimited investigationFinal reportde Havilland DHC-2 · Talkeetna, AKAerodynamic flutter of the ailerons during normal cruise flight due to their improper maintenance/balancing, which resulted in structural damage to the airplane's wings.NTSB ANC05IA016Incident · No injuriesIncident investigationFinal reportBoeing 747SR-146B SF · Anchorage, AKThe fatigue and subsequent fracture of a portion of the airplane's pressure bulkhead, which resulted in a rapid decompression during cruise flight.NTSB ANC04FA092Accident · 2 fatalField investigationFinal reportMaule M-5-235C · Seward, AKThe failure of an aviation mechanic/inspector to adequately inspect the pilot/owner's work during the engine overhaul, which resulted in a loss of engine oil and engine power during cruise flight, and a subsequent ditching. Factors associated with the…NTSB ANC04LA020Accident · No injuriesLimited investigationFinal reportCessna 172 · Girdwood, AKThe pilot's delay in aborting the takeoff, which resulted in an overrun and collision with a snowbank. A factor in the accident was an inoperative airspeed indicator.NTSB ANC04LA011Accident · No injuriesLimited investigationFinal reportCessna 402 · Galena, AKWater contamination and freezing of the landing gear actuator that prevented the extension of the right main landing gear, resulting in a gear-up landing. Factors contributing to the accident were freezing temperatures at the accident location, and inadequate…NTSB ANC04LA004Accident · No injuriesLimited investigationFinal reportCessna 195B · North Pole, AKA fracture of the left brake master cylinder actuator rod, which resulted in failure of the left brake, a loss of directional control and an inadvertent ground loop during landing, and the separation of the left main landing gear strut due to fatigue. Factors…NTSB ANC03LA128Accident · No injuriesLimited investigationFinal reportCessna 206 · Fairbanks, AKA failure of an attaching bolt that allowed the nose wheel fork to separate from the nose gear strut, which resulted in the collapse of the nose gear during the landing roll. A factor contributing to the accident was rough/uneven terrain.NTSB ANC03LA074Accident · No injuriesLimited investigationFinal reportBeech 58 · Hoonah, AKThe locking of the left brake during the landing roll, which resulted in the collapse of the left main landing gear.NTSB ANC03LA069Accident · No injuriesLimited investigationFinal reportCessna 172 · Seldovia, AKThe failure of company maintenance personnel to properly maintain the airplane's brake system, which resulted in a loss of the right brake during landing roll due to a chafed brake line.NTSB ANC03IA037Incident · No injuriesIncident investigationFinal reportCessna 206 · Homer, AKThe separation of the main landing gear spring strut during landing touchdown due to corrosion and fatigue. Factors contributing to the accident were the manufacturer's and the FAA's insufficient standards/requirements for inspection procedures.NTSB ANC03LA021Accident · No injuriesLimited investigationFinal reportde Havilland DHC-3 · Nikolai, AKAn improper and undocumented major repair of the elevator torque tube support assembly by an unknown person, which resulted in an in-flight disconnection of the airplane's right elevator, and a jammed rudder. A factor associated with the accident is the…NTSB ANC03IA001Incident · No injuriesIncident investigationFinal reportBoeing 747-400 · Anchorage, AKThe fatigue fracture of the lower rudder power control module manifold, which resulted in a lower rudder hardover.NTSB ANC02LA122Accident · No injuriesLimited investigationFinal reportCessna 206 · Circle, AKA partial separation of the nose wheel flange from the hub that resulted in a nose over during the landing roll.NTSB ANC02LA099Accident · No injuriesLimited investigationFinal reportMaule M-7-235 · Palmer, AKThe fracture of the right main landing gear axle during landing roll. Factors associated with the accident were corrosion of the landing gear axle, failure of company maintenance personnel to adequately inspect the axle and detect the corrosion, and rough and…NTSB ANC02LA089Accident · No injuriesLimited investigationFinal reportHelio H-295 · Fort Yukon, AKThe failure of the axle shaft, which resulted in the separation of the right main tire/wheel from the airplane on landing.NTSB ANC02LA069Accident · Minor injuriesLimited investigationFinal reportPiper PA-32-300 · Kake, AKThe in-flight separation of the upper engine cowling from the airplane. A factor contributing to the accident was the soft, sandy terrain of the landing area.NTSB ANC02LA050Accident · No injuriesLimited investigationFinal reportCessna 185F · Talkeetna, AKA fracture failure of the lower end of the spring steel landing gear strut. Factors contributing to the accident were the manufacturer's and the FAA's insufficient standards/requirements for inspection procedures.NTSB ANC02LA034Accident · No injuriesLimited investigationFinal reportCessna 170B · North Pole, AKThe separation of the right main landing gear from the airplane during landing. A factor associated with the accident is the unapproved hardware used to attach the main landing gear.NTSB ANC02FA029Accident · No injuriesField investigationFinal reportEurocopter AS-350-B2 · Valdez, AKThe pilot's failure to disengage the hydraulic system, and maintain forward airspeed during landing as delineated in the emergency procedures section of the helicopter's operations manual, which resulted in a loss of control while hovering. Factors…NTSB 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.NTSB ANC02IA007Incident · No injuriesIncident investigationFinal reportDouglas DC-8-71F · Anchorage, AKThe asymmetrical activation of the left wing spoiler due to a broken retraction cable during takeoff. A factor associated with the incident was the operator's inadequate inspection of the cable.NTSB ANC01LA136Accident · No injuriesLimited investigationFinal reportCessna 185F · King Salmon, AKAn overload failure of the main axle attaching bolts, and subsequent separation of the axle from the landing gear strut.NTSB ANC01LA109Accident · No injuriesLimited investigationFinal reportSikorsky S61A · Wrangell, AKThe separation of a steel long line cable that failed and rebounded from a load of logs into the helicopter's main and tail rotors.NTSB ANC01LA116Accident · No injuriesLimited investigationFinal reportPiper PA-18 · Anaktuvuk Pass, AKA failure of the landing gear strut assembly due to corrosion. A factor in the accident was the pilot's inadequate maintenance of the airplane.NTSB ANC01LA097Accident · No injuriesLimited investigationFinal reportPiper PA-12 · Anchorage, AKThe loss of left brake pressure due to a missing hydraulic brake fitting.NTSB ANC01LA057Accident · No injuriesLimited investigationFinal reportCessna 206 · Stebbins, AKA jammed control yoke during landing, an entangled wiring harness, and inadequate maintenance by company personnel. A factor associated with the accident was the pilot's inability to flare the airplane during landing, due to the mechanical malfunction.NTSB ANC01LA055Accident · No injuriesLimited investigationFinal reportCessna 170B · Fairbanks, AKA failure of the tailwheel spring assembly due to fatigue during touch and go landings. A factor in the accident was an inadequate annual inspection by maintenance personnel.NTSB ANC01LA023Accident · No injuriesLimited investigationFinal reportCessna 180 · Chugiak, AKThe failure of a mechanic to ensure the throttle linkage was secure. A factor in the accident was the pilot's failure to take remedial action during an emergency landing and overrun.NTSB ANC00LA122Accident · No injuriesLimited investigationFinal reportPiper PA-22 · Dillingham, AKA malfunctioning main landing gear brake, which precipitated a ground-loop.NTSB ANC00GA121Accident · No injuriesFinal reportBeech F-90 · Anchorage, AKThe failure of the right main landing gear drag leg (scissors) attach point, which resulted in the landing gear becoming jammed against the landing gear door during the extension cycle.NTSB ANC00LA105Accident · No injuriesLimited investigationFinal reportCessna 185 · Yakutat, AKThe total fatigue failure of the right main landing gear leg.