NTSB investigations, 2016
177 cases where the phase of flight was Maneuvering.
Cases per year
| 1964 | 415 |
|---|---|
| 1965 | 419 |
| 1966 | 366 |
| 1967 | 410 |
| 1968 | 394 |
| 1969 | 360 |
| 1970 | 330 |
| 1971 | 384 |
| 1972 | 359 |
| 1973 | 407 |
| 1974 | 410 |
| 1975 | 407 |
| 1976 | 480 |
| 1977 | 443 |
| 1978 | 433 |
| 1979 | 384 |
| 1980 | 377 |
| 1981 | 374 |
| 1982 | 416 |
| 1983 | 476 |
| 1984 | 462 |
| 1985 | 402 |
| 1986 | 357 |
| 1987 | 357 |
| 1988 | 349 |
| 1989 | 313 |
| 1990 | 307 |
| 1991 | 350 |
| 1992 | 309 |
| 1993 | 315 |
| 1994 | 322 |
| 1995 | 320 |
| 1996 | 279 |
| 1997 | 262 |
| 1998 | 259 |
| 1999 | 267 |
| 2000 | 281 |
| 2001 | 257 |
| 2002 | 241 |
| 2003 | 263 |
| 2004 | 224 |
| 2005 | 212 |
| 2006 | 203 |
| 2007 | 222 |
| 2008 | 235 |
| 2009 | 208 |
| 2010 | 222 |
| 2011 | 250 |
| 2012 | 236 |
| 2013 | 216 |
| 2014 | 199 |
| 2015 | 217 |
| 2016 | 177 |
| 2017 | 201 |
| 2018 | 187 |
| 2019 | 197 |
| 2020 | 165 |
| 2021 | 186 |
| 2022 | 186 |
| 2023 | 191 |
| 2024 | 166 |
| 2025 | 145 |
| 2026 | 90 |
Where
Latest cases
Query with SQL
duckdb -csv -c "WITH phase_names(main, name) AS (VALUES (100, 'Prior to flight'), (150, 'Standing'), (200, 'Pushback/towing'), (250, 'Taxi'), (300, 'Takeoff'), (350, 'Initial climb'), (400, 'Enroute'), (450, 'Maneuvering'), (500, 'Approach'), (550, 'Landing'), (600, 'Emergency descent'), (650, 'Uncontrolled descent'), (700, 'Post-impact'), (750, 'After landing'), (800, 'Other'), (990, 'Unknown')),
crosswalk(code, main, name) AS (VALUES (500, 150, 'Standing'), (501, 150, 'Standing - pre-flight'), (502, 150, 'Standing - starting engine(s)'), (503, 150, 'Standing - engine(s) operating'), (504, 150, 'Standing - engine(s) not operating'), (505, 150, 'Standing - idling rotors'), (510, 250, 'Taxi'), (511, 200, 'Taxi - pushback/tow'), (512, 250, 'Taxi - to takeoff'), (513, 250, 'Taxi - from landing'), (514, 250, 'Taxi - aerial'), (520, 300, 'Takeoff'), (521, 300, 'Takeoff - roll/run'), (522, 350, 'Takeoff - initial climb'), (523, 300, 'Takeoff - aborted'), (530, 400, 'Climb'), (531, 400, 'Climb - to cruise'), (540, 400, 'Cruise'), (541, 400, 'Cruise - normal'), (542, 400, 'Maneuvering - holding (IFR)'), (550, 400, 'Descent'), (551, 400, 'Descent - normal'), (552, 600, 'Descent - emergency'), (553, 650, 'Descent - uncontrolled'), (560, 500, 'Approach'), (561, 500, 'Approach - VFR pattern - downwind'), (562, 500, 'Approach - VFR pattern - base turn'), (563, 500, 'Approach - VFR pattern - base leg/base to final'), (564, 500, 'Approach - VFR pattern - final approach'), (565, 500, 'Go-around (VFR)'), (566, 500, 'Approach - IAF to FAF/outer marker (IFR)'), (567, 500, 'Approach - FAF/outer marker to threshold (IFR)'), (568, 500, 'Circling (IFR)'), (569, 500, 'Missed approach (IFR)'), (570, 550, 'Landing'), (571, 550, 'Landing - flare/touchdown'), (572, 550, 'Landing - roll'), (573, 550, 'Landing - aborted'), (574, 550, 'Emergency landing'), (575, 550, 'Emergency landing after takeoff'), (576, 600, 'Emergency descent/landing'), (580, 450, 'Maneuvering'), (581, 450, 'Maneuvering - aerial application'), (582, 450, 'Maneuvering - turn to reverse direction'), (583, 450, 'Maneuvering - turn to landing area (emergency)'), (590, 450, 'Hover'), (591, 450, 'Hover - in ground effect'), (592, 450, 'Hover - out of ground effect'), (600, 800, 'Other'), (610, 990, 'Unknown')),
current_codes AS (
SELECT e.case_mkey, TRY_CAST(e.\"tier1Number\" AS INTEGER) AS code,
row_number() OVER (PARTITION BY e.case_mkey ORDER BY coalesce(e.\"isDefiningEvent\", false) DESC, e.position) AS n
FROM 'https://openairdocs.org/data/latest/ntsb_events.parquet' e
WHERE e.aircrafts_position = 1 AND e.\"tier1Number\" GLOB '[1-9][0-9]*'
AND (e.\"isDefiningEvent\" OR e.case_mkey IN (SELECT \"mKey\" FROM 'https://openairdocs.org/data/latest/ntsb_case_detail.parquet' WHERE \"isPre1982\"))
),
phases AS (
SELECT case_mkey, 'current' AS scheme, code, CASE WHEN code >= 990 THEN 990 ELSE code // 50 * 50 END AS main
FROM current_codes WHERE n = 1
UNION ALL
SELECT o.case_mkey, 'older', o.\"phaseOfFlightCode\", w.main
FROM 'https://openairdocs.org/data/latest/ntsb_occurrences.parquet' o JOIN crosswalk w ON w.code = o.\"phaseOfFlightCode\"
WHERE o.aircrafts_position = 1 AND o.\"occurrenceNumber\" = 1 AND o.case_mkey NOT IN (SELECT case_mkey FROM current_codes)
),
case_phases AS (
SELECT p.*, c.\"eventDate\", c.\"highestInjuryLevel\" = 'Fatal' AS fatal, a.aircraft_model_code
FROM phases p JOIN 'https://openairdocs.org/data/latest/ntsb_case_detail.parquet' c ON c.\"mKey\" = p.case_mkey
LEFT JOIN 'https://openairdocs.org/data/latest/ntsb_aircrafts.parquet' a ON a.case_mkey = p.case_mkey AND a.position = 1
WHERE c.\"eventDate\" >= DATE '1962-01-01' AND p.main IN (SELECT main FROM phase_names)
)
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 year(c.\"eventDate\") = 2016
AND c.\"mKey\" IN (SELECT case_mkey FROM case_phases WHERE main = 450)
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.
WITH phase_names(main, name) AS (VALUES (100, 'Prior to flight'), (150, 'Standing'), (200, 'Pushback/towing'), (250, 'Taxi'), (300, 'Takeoff'), (350, 'Initial climb'), (400, 'Enroute'), (450, 'Maneuvering'), (500, 'Approach'), (550, 'Landing'), (600, 'Emergency descent'), (650, 'Uncontrolled descent'), (700, 'Post-impact'), (750, 'After landing'), (800, 'Other'), (990, 'Unknown')),
crosswalk(code, main, name) AS (VALUES (500, 150, 'Standing'), (501, 150, 'Standing - pre-flight'), (502, 150, 'Standing - starting engine(s)'), (503, 150, 'Standing - engine(s) operating'), (504, 150, 'Standing - engine(s) not operating'), (505, 150, 'Standing - idling rotors'), (510, 250, 'Taxi'), (511, 200, 'Taxi - pushback/tow'), (512, 250, 'Taxi - to takeoff'), (513, 250, 'Taxi - from landing'), (514, 250, 'Taxi - aerial'), (520, 300, 'Takeoff'), (521, 300, 'Takeoff - roll/run'), (522, 350, 'Takeoff - initial climb'), (523, 300, 'Takeoff - aborted'), (530, 400, 'Climb'), (531, 400, 'Climb - to cruise'), (540, 400, 'Cruise'), (541, 400, 'Cruise - normal'), (542, 400, 'Maneuvering - holding (IFR)'), (550, 400, 'Descent'), (551, 400, 'Descent - normal'), (552, 600, 'Descent - emergency'), (553, 650, 'Descent - uncontrolled'), (560, 500, 'Approach'), (561, 500, 'Approach - VFR pattern - downwind'), (562, 500, 'Approach - VFR pattern - base turn'), (563, 500, 'Approach - VFR pattern - base leg/base to final'), (564, 500, 'Approach - VFR pattern - final approach'), (565, 500, 'Go-around (VFR)'), (566, 500, 'Approach - IAF to FAF/outer marker (IFR)'), (567, 500, 'Approach - FAF/outer marker to threshold (IFR)'), (568, 500, 'Circling (IFR)'), (569, 500, 'Missed approach (IFR)'), (570, 550, 'Landing'), (571, 550, 'Landing - flare/touchdown'), (572, 550, 'Landing - roll'), (573, 550, 'Landing - aborted'), (574, 550, 'Emergency landing'), (575, 550, 'Emergency landing after takeoff'), (576, 600, 'Emergency descent/landing'), (580, 450, 'Maneuvering'), (581, 450, 'Maneuvering - aerial application'), (582, 450, 'Maneuvering - turn to reverse direction'), (583, 450, 'Maneuvering - turn to landing area (emergency)'), (590, 450, 'Hover'), (591, 450, 'Hover - in ground effect'), (592, 450, 'Hover - out of ground effect'), (600, 800, 'Other'), (610, 990, 'Unknown')),
current_codes AS (
SELECT e.case_mkey, TRY_CAST(e."tier1Number" AS INTEGER) AS code,
row_number() OVER (PARTITION BY e.case_mkey ORDER BY coalesce(e."isDefiningEvent", false) DESC, e.position) AS n
FROM 'https://openairdocs.org/data/latest/ntsb_events.parquet' e
WHERE e.aircrafts_position = 1 AND e."tier1Number" GLOB '[1-9][0-9]*'
AND (e."isDefiningEvent" OR e.case_mkey IN (SELECT "mKey" FROM 'https://openairdocs.org/data/latest/ntsb_case_detail.parquet' WHERE "isPre1982"))
),
phases AS (
SELECT case_mkey, 'current' AS scheme, code, CASE WHEN code >= 990 THEN 990 ELSE code // 50 * 50 END AS main
FROM current_codes WHERE n = 1
UNION ALL
SELECT o.case_mkey, 'older', o."phaseOfFlightCode", w.main
FROM 'https://openairdocs.org/data/latest/ntsb_occurrences.parquet' o JOIN crosswalk w ON w.code = o."phaseOfFlightCode"
WHERE o.aircrafts_position = 1 AND o."occurrenceNumber" = 1 AND o.case_mkey NOT IN (SELECT case_mkey FROM current_codes)
),
case_phases AS (
SELECT p.*, c."eventDate", c."highestInjuryLevel" = 'Fatal' AS fatal, a.aircraft_model_code
FROM phases p JOIN 'https://openairdocs.org/data/latest/ntsb_case_detail.parquet' c ON c."mKey" = p.case_mkey
LEFT JOIN 'https://openairdocs.org/data/latest/ntsb_aircrafts.parquet' a ON a.case_mkey = p.case_mkey AND a.position = 1
WHERE c."eventDate" >= DATE '1962-01-01' AND p.main IN (SELECT main FROM phase_names)
)
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 year(c."eventDate") = 2016
AND c."mKey" IN (SELECT case_mkey FROM case_phases WHERE main = 450)
ORDER BY c."eventDate" DESC, c."ntsbNumber" DESCRun 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 ERA17LA075Accident · Serious injuriesLimited investigationFinal reportCessna 172 · Bridgeport, ALThe pilot's decision to make steep turns to the right while operating on the right fuel tank with low fuel quantity, which led to a loss of engine power due to unporting of the right fuel tank and fuel starvation.NTSB ERA17LA070Accident · Serious injuriesLimited investigationFinal reportBeech A36 · Ormond Beach, FLThe pilot's impairment by alcohol before and during the flight, which led to his improper fuel management and resulted in fuel exhaustion and a subsequent loss of engine power.NTSB ERA17WA079Accident · 1 fatalForeign investigationAir Tractor AT502 · Primavera do Leste, BrazilOn December 13, 2016, about 1930 coordinated universal time, an Air Tractor AT-502B, Brazilian registration PR-AJF, was destroyed after it impacted terrain and was subject to a postcrash fire, during an agricultural spraying operation near Primavera do Leste,…NTSB WPR17WA039Accident · 1 fatalForeign investigationRobinson R44 · Juhu, IndiaNTSB CEN17FA050Accident · 1 fatalField investigationFinal reportCub Crafters PA18 · Basin, WYThe pilot exceeded the airplane's critical angle of attack while maneuvering at low altitude, which resulted in an inadvertent aerodynamic stall and subsequent impact with terrain.NTSB ANC17FA009Accident · 1 fatalClass 3 · FieldFinal reportBellanca 7GCBC · Fairbanks, AKThe pilot’s decision to operate the airplane at an altitude too low to allow for recovery from an intentional aerodynamic stall. Contributing to the accident was the pilot’s lack of knowledge of the stall performance characteristics of the airplane modified…NTSB ERA17FA066Accident · 1 fatalField investigationFinal reportFairchild SA227 · Camilla, GAThe pilot's decision to initiate and continue the flight into known adverse weather conditions, which resulted spatial disorientation, a loss of airplane control, and a subsequent in-flight breakup.NTSB CEN17WA052Accident · 1 fatalForeign investigationPZL Bielsko SZD51 · Husbands Bosworth, United KingdomOn December 4, 2016, about 1230 coordinated universal time, a PZL Bielsko SZD-51-1 glider, G-CSFT, and a Cessna 150L airplane, G-CSFC, collided in midair near Husbands Bosworth, Leicestershire, United Kingdom. The glider impacted terrain and the pilot was…NTSB ERA17WA303Accident · 1 fatalForeign investigationSchempp Hirth VENTUS2C · San Carlos de Bolivar, ArgentinaOn December 3, 2016, about 1750 coordinated universal time, a Schempp Hirth Ventus-2C motorized glider, Argentine registration LV-EDB, operated by a private individual, was substantially damaged when it impacted terrain after the left wing detached from the…NTSB WPR17WA026Accident · 1 fatalForeign investigationAir Tractor AT802 · Trangie, AustraliaNTSB WPR17FA021Accident · 2 fatalField investigationFinal reportHughes 369 · Pukoo, HIThe pilot's decision to continue visual flight into an area of instrument meteorological conditions at night in rain, which resulted in his geographic disorientation and controlled flight into terrain.NTSB WPR17WA022Accident · No injuriesForeign investigationRobinson R66 · Winton, New ZealandOn November 14, 2016, at 0230 universal coordinated time, a Robinson R-66, ZK-HAG, operated by Heliops Southland Limited under the pertinent regulations of the government of New Zealand, was substantially damaged after the helicopter experienced a low rotor…NTSB WPR17LA020Accident · No injuriesLimited investigationFinal reportPiper PA 28-235 · Taylor, AZA total loss of engine power for reasons that could not be determined because postaccident examination revealed no anomalies that would have precluded normal operation.NTSB CEN17LA038Accident · No injuriesLimited investigationFinal reportWeatherly 620B · Coleman, TXThe pilot’s inadequate fuel management, which resulted in a total loss of engine power due to fuel starvation.NTSB ERA17FA038Accident · 2 fatalField investigationFinal reportQuad City Challenger · Crescent City, FLAn abrupt pitch-up maneuver following a descent, which resulted in the in-flight separation of the right wing due to the overload failure of both the forward and aft right wing attachment brackets.NTSB WPR17WA028Accident · 1 fatalForeign investigationAir Tractor AT502 · Walgett, AustraliaNTSB ERA17LA031Accident · Minor injuriesLimited investigationFinal reportHaddow William H Pitts Special S 1 · New Bern, NCA loss of biplane control during aerobatic maneuvers for reasons that could not be determined because a portion of the biplane's flight control system was not recovered and could not be tested.NTSB CEN17LA033Accident · No injuriesLimited investigationFinal reportNorth American TB 25N · Dallas, TXThe overstress failure of the landing gear connecting rod and the improper installation of the arresting cables, which allowed the landing gear door to depart in flight and impact the airplane.NTSB ANC17FA003Accident · 1 fatalField investigationFinal reportCessna 172 · Palmer, AKThe student pilot's exceedance of the airplane's critical angle of attack during a steep climbing turn following a touch-and-go landing, which resulted in an aerodynamic stall at too low of an altitude to recover.NTSB WPR17LA014Accident · No injuriesLimited investigationFinal reportAerospatiale AS350 · Starbuck, WAA total loss of engine power due to fuel exhaustion, which resulted from the pilot’s reliance on the fuel gauge that was displaying an incorrect fuel amount due to the separation of the fuel transmitter float pin guide from the float.NTSB ERA17CA030Accident · Minor injuriesData collectionFinal reportKolb Fire FLY · West Middlesex, PAThe noncertificated pilot’s loss of airplane control while maneuvering at a low altitude.NTSB CEN17LA099Accident · No injuriesLimited investigationFinal reportRobinson R22 Beta · Asherton, TXThe partial loss of engine power due to the failure of the magneto's internal timing during low-altitude maneuvering.NTSB CEN17LA027Accident · Serious injuriesLimited investigationFinal reportAir Tractor AT 502B · Hereford, TXThe pilot's failure to maintain clearance from a cotton crop while maneuvering during agricultural application operations, which resulted in a loss of airplane control.NTSB ERA17FA027Accident · 1 fatalField investigationFinal reportNanchang CJ6 · Blackshear, GAThe Bama 3 pilot's failure to properly conduct an overshoot maneuver and his premature climb before he was clear of the lead airplane, Bama 1, which lead to a midair collisionNTSB ERA17LA024Accident · Minor injuriesLimited investigationFinal reportCessna 172 · Cedar Key, FLA partial loss of engine power due to a stuck exhaust valve and the noncertificated pilot's inadequate preflight planning, which resulted in the airplane being overloaded, both of which led to the airplane's inability to attain a positive climb rate.…NTSB GAA17CA030Accident · Minor injuriesData collectionFinal reportAir Tractor AT 502 · Paragould, ARThe pilot's failure to avoid electrical wires during low-altitude maneuvering, which resulted in a wire strike.NTSB ERA17WA021Accident · 2 fatalForeign investigationCessna 172 · Peloponnese, GreeceOn October 16, 2016, about 1415 universal coordinated time, a Cessna 172P, Greek registration 5B-CLB, was destroyed when it impacted mountainous terrain while performing a cross-country training flight near Peloponnese, Greece. The Greek certificated…NTSB CEN17FA016Accident · 2 fatalField investigationFinal reportMakela RV-4 · Oregonia, OHThe pilot's decision to fly at a low altitude, which resulted in the collision with a zipline.NTSB ERA17LA007Accident · Serious injuriesLimited investigationFinal reportJames Bruton Flying Flea · Plymouth, CTA partial loss of engine power for reasons that could not be determined based on the available information.NTSB WPR17LA002Accident · Minor injuriesLimited investigationFinal reportTamarack Helicopters UH-1H · Gila Bend, AZThe separation of the 90° tail rotor gearbox assembly as a result of fatigue to the tail rotor gearbox input quill assembly attachment studs due to the helicopter experiencing highly repetitive agricultural flight profiles for which it was not designed.NTSB CEN17LA006Accident · No injuriesLimited investigationFinal reportCessna 172K · Wilmot, WIA failure of the No. 1 piston pin plug due to corrosion in the cylinder barrel, which resulted in oil contamination, oil starvation to the crankshaft connecting rod bearings, and a subsequent partial loss of engine power.NTSB CEN17FA005Accident · 1 fatalField investigationFinal reportBeech D95A · Hitchcock, TXThe flight instructor's loss of control during an aerodynamic stall demonstration, which resulted in an inadvertent spin from which he was unable to recover. Contributing to the accident was the flight instructor's lack of familiarity with the airplane's…NTSB ERA17FA001Accident · 1 fatalField investigationFinal reportCulver PQ 14A · Hickory, NCThe loss of engine power due to carburetor icing. Contributing to the accident was the pilot's use of automobile gasoline, which increased the likelihood of carburetor icing.NTSB ANC16RA074Accident · 1 fatalForeign investigationPitts S2 · Seoul, South KoreaOn September 24, 2016 , about 1132 local time, an Aviat Pitts S-2B airplane, Republic of Korea registration number HL1161, operated by the pilot, was destroyed following an impact with terrain during an airshow at Taean Airfield, Republic of Korea. The pilot…NTSB CEN16WA377Accident · 4 fatalForeign investigationPiper PA28 · Gödöllo, Pest, Hungary, HungaryNTSB WPR16LA184Accident · No injuriesLimited investigationFinal reportOGG Richard A OGG Glasair I · Reno, NVThe failure of an induction elbow following an engine backfire, which resulted in an in-flight fire and loss of engine power.NTSB WPR16LA181Accident · No injuriesLimited investigationFinal reportDehavilland DH115 Vampire · Reno, NVThe in-flight failure of the canopy and subsequent loss of engine power for reasons that could not be determined because postaccident examination of the airframe and engine revealed no anomalies that would have precluded normal operation.NTSB ERA16FA316Accident · 1 fatalField investigationFinal reportCessna A188 · Alapaha, GAThe pilot's failure to maintain adequate airspeed while maneuvering at low altitude during aerial application operations, which resulted in the airplane exceeding its critical angle-of-attack and entering an aerodynamic stall and spin.NTSB WPR16WA186Accident · 4 fatalForeign investigationLittle Eagle LE500 · Shijiazhuang City, ChinaOn September 15, 2016, about 0308 Universal Time, a Little Eagle LE500 single-engine airplane, Chinese registration B-9246, impacted flat terrain about 1,640 feet from the approach end of runway 18, at the Luan Cheng General Aviation Airport, Shijiazhuang…NTSB GAA16CA488Accident · No injuriesData collectionFinal reportRobinson Helicopter R44 II · Cedar City, UTThe flight instructor’s delayed remedial action while providing hover instruction in gusting wind conditions, which resulted in dynamic roll-over.NTSB CEN16FA370Accident · 2 fatalField investigationFinal reportPiper PA 11 · Arcanum, OHThe student pilot's reckless flying attitude and use of multiple psychoactive drugs, which likely impaired his ability to maintain clearance from terrain while maneuvering at low altitude.NTSB ANC16FA065Accident · 1 fatalField investigationFinal reportHefty Polar Cub · Anchorage, AKThe pilot's severe impairment from carbon monoxide poisoning in flight, which resulted in a loss of control and a subsequent collision with trees and terrain.NTSB GAA16CA482Accident · No injuriesData collectionFinal reportPiper PA18 · Gulkana, AKThe pilot’s failure to maintain clearance from a tree while maneuvering at low altitude.NTSB GAA16CA480Accident · No injuriesData collectionFinal reportHughes 369 · Peach Orchard, MOThe helicopter pilot’s failure to maintain sufficient separation between the main rotor blade and a power line during line guard installation, which resulted in an electrical arc to the main rotor.NTSB ERA16CA314Accident · Minor injuriesData collectionFinal reportQuicksilver Manufacturing Sport 2S · Cleveland, GAThe pilot’s failure to maintain adequate airspeed and his exceedance of the airplane’s critical angle of attack, which resulted in an aerodynamic stall.NTSB GAA16CA469Accident · Minor injuriesData collectionFinal reportRainbow Sky Reach Bushcat · Frankfort, KYThe pilot's exceedance of the airplane's critical angle-of-attack while maneuvering at low altitude, which resulted in an aerodynamic stall.NTSB ERA16FA311Accident · 3 fatalField investigationFinal reportSikorsky S61 · Palm Bay, FLA dual loss of engine power for undetermined reasons after the pilot's improper decision to attempt another maneuver after recovering from a perceived compressor stall, rather than returning to the airport.NTSB GAA16CA462Accident · No injuriesData collectionFinal reportAir Tractor AT · Hondo, TXThe pilot’s failure to maintain clearance from an antenna atop a tower while maneuvering at a low altitude and the airplane’s subsequent impact with terrain during an attempted off-airport landing.NTSB ANC16WA064Accident · 1 fatalForeign investigationBell 206B · Fox Creek, CanadaOn September 5, 2016, about 1520 mountain daylight time, a Bell 206B helicopter, Canadian registration C-GHHU, impacted terrain during an aerial survey flight subsequent to a power loss about 12 miles southwest of Fox Creek, Alberta, Canada. The helicopter…NTSB CEN16LA353Accident · Serious injuriesLimited investigationFinal reportStanton DR-1 · Plain City, OHA loss of engine power for reasons that could not be determined based on the available information.