NTSB investigations, 2011
188 cases where the phase of flight was Takeoff.
Cases per year
| 1962 | 4 |
|---|---|
| 1963 | 5 |
| 1964 | 352 |
| 1965 | 314 |
| 1966 | 410 |
| 1967 | 449 |
| 1968 | 327 |
| 1969 | 364 |
| 1970 | 345 |
| 1971 | 383 |
| 1972 | 265 |
| 1973 | 299 |
| 1974 | 343 |
| 1975 | 315 |
| 1976 | 281 |
| 1977 | 333 |
| 1978 | 344 |
| 1979 | 321 |
| 1980 | 251 |
| 1981 | 289 |
| 1982 | 254 |
| 1983 | 247 |
| 1984 | 238 |
| 1985 | 192 |
| 1986 | 182 |
| 1987 | 187 |
| 1988 | 168 |
| 1989 | 162 |
| 1990 | 185 |
| 1991 | 191 |
| 1992 | 146 |
| 1993 | 140 |
| 1994 | 175 |
| 1995 | 197 |
| 1996 | 145 |
| 1997 | 154 |
| 1998 | 153 |
| 1999 | 175 |
| 2000 | 162 |
| 2001 | 148 |
| 2002 | 153 |
| 2003 | 162 |
| 2004 | 129 |
| 2005 | 143 |
| 2006 | 127 |
| 2007 | 150 |
| 2008 | 170 |
| 2009 | 205 |
| 2010 | 198 |
| 2011 | 188 |
| 2012 | 184 |
| 2013 | 153 |
| 2014 | 188 |
| 2015 | 184 |
| 2016 | 191 |
| 2017 | 195 |
| 2018 | 172 |
| 2019 | 197 |
| 2020 | 193 |
| 2021 | 179 |
| 2022 | 176 |
| 2023 | 204 |
| 2024 | 216 |
| 2025 | 203 |
| 2026 | 179 |
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\") = 2011
AND c.\"mKey\" IN (SELECT case_mkey FROM case_phases WHERE main = 300)
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") = 2011
AND c."mKey" IN (SELECT case_mkey FROM case_phases WHERE main = 300)
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 WPR12LA070Accident · Serious injuriesLimited investigationFinal reportRyan Navion · Concord, CAThe pilot's inadequate preflight inspection of the airplane and the subsequent total loss of engine power as a result of debris and water contamination in the fuel system.NTSB CEN12LA114Accident · Serious injuriesLimited investigationFinal reportSouthern Powered Parachute Condor · Rogersville, MOThe pilot's inadequate preflight inspection of the takeoff area, which resulted in a loss of control due to the binding of the parachute's lines.NTSB ERA12CA118Accident · No injuriesData collectionFinal reportCessna 120 · Montague, MAThe pilot's delay in performing a rejected takeoff after experiencing an intermittent loss of engine power, which resulted in a runway excursion.NTSB ERA12FA107Accident · 1 fatalField investigationFinal reportShaw Douglas Wayne Rans S 7 · Somerville, TNThe pilot's incapacitation due to a ruptured berry aneurysm during takeoff.NTSB DCA13WA052Incident · No injuriesForeign investigationBeech 1900 · Goose Bay, CanadaOn 10 December 2011, at 1028 Newfoundland Standard Time, an Exploits Valley Air Services Hawker Beechcraft 1900D aircraft (registration C-GLHO, serial number UE-266), operating as Air Canada Express flight EV7645, was conducting a scheduled passenger flight…NTSB DCA12WA018Incident · No injuriesForeign investigationBoeing 737 · Seoul, South KoreaThe Korean Aviationand Railway Accident Investigation Board (ARAIB) has notified the NTSB of an accident involving a Boeing 737 that occurred on December 4, 2011. The NTSB has appointed a U.S. Accredited Representative to assist the ARAIB investigation under…NTSB ERA12CA094Accident · No injuriesData collectionFinal reportNuse George F1H Rocket · Caroleen, NCThe pilot did not maintain directional control during takeoff at night due to his distraction with a dropped flashlight, and he delayed his decision to abort the takeoff.NTSB OPS12IA167Incident · No injuriesIncident investigationFinal reportLearjet 45 · Chicago, ILThe tower local controller did not ensure that the runway was clear of conflict before directing the B737 to cross the runway, and other air traffic control personnel did not effectively intervene when the separation between the two airplanes became…NTSB DCA12WA019Accident · No injuriesForeign investigationGulfstream American G 1159 · Huambo, AngolaOn November 26, 2011, about 1300 UTC, N811DE, a Grumman G-1159 Gulfstream G-II, a private flight operated by Wings Over Africa, was involved in a runway excursion following a rejected takeoff. None of the 10 persons aboard were injured. The aircraft was…NTSB CEN12FA073Accident · 1 fatalField investigationFinal reportSkykits Savannah VGW · Plato Center, ILThe noncertificated pilot’s decision to fly the airplane without receiving any flight instruction in the airplane, which resulted in his failure to maintain sufficient airspeed during takeoff and the subsequent aerodynamic stall.NTSB ERA12LA077Accident · Serious injuriesLimited investigationFinal reportErcoupe 415-C · Mulberry, FLThe pilot’s failure to abort the takeoff after recognizing the airplane’s poor performance during the takeoff roll. Contributing to the passenger’s injuries was the pilot’s failure to provide a briefing on the use of the lapbelt, which delayed the passenger’s…NTSB CEN12LA071Accident · Serious injuriesLimited investigationFinal reportJuve Richard G Zodiac CH601 HDS · Clinton, ARThe inadvertent opening of the canopy during takeoff due to the improperly repaired forward canopy latch mechanism, which did not fully secure the canopy.NTSB WPR12CA038Accident · No injuriesData collectionFinal reportCessna 172S · Phoenix, AZThe student pilot's inadequate directional control during takeoff.NTSB ERA12WA092Accident · No injuriesForeign investigationPiper PA-25 · Meteropolitana, ChileOn November 11, 2011, at 1345 UTC, a Piper PA-25-260, Chilean registration CC-ABM, registered to and operated by Sociedad De Ttrabajos Aeros Aeropacifico LTDA as a personal flight experienced a partial loss of engine power on initial takeoff climb, in the…NTSB CEN12LA059Accident · 1 fatalLimited investigationFinal reportCessna 172M · Sturgis, SDThe student pilot’s failure to maintain control of the airplane during takeoff with extended flaps.NTSB CEN12WA223Accident · 1 fatalForeign investigationPiper PA-31 · Cottens, SwitzerlandThe accident investigation is under the jurisdiction and control of the Swiss government. This report is for informational purposes only and contains only information released by or obtained from the Swiss government or the Swiss Accident Investigation Board.…NTSB WPR12CA033Accident · No injuriesData collectionFinal reportCasler Scott CX-4 · San Carlos, AZThe pilot's inadequate directional control during takeoff.NTSB ERA12WA067Incident · No injuriesForeign investigationCessna 402 · Quibdo, ColombiaOn November 4, 2011, about 1640 UTC, a Cessna 402C, Colombian registration HK4417, registered to and operated by AeroEjecutivos De Antioquia S.A. experienced collapse of the left main landing gear during the takeoff roll from El Carano Airport (SKUI), Quibdo,…NTSB CEN12LA056Accident · No injuriesLimited investigationFinal reportCessna 182K · Branson West, MOThe pilot's failure to ensure that his seat was in a locked position before takeoff, which resulted in the seat sliding rearward and the subsequent loss of directional control.NTSB DCA12WA007Accident · No injuriesForeign investigationBoeing 737 - 800 · Faro, PortugalTheAir AccidentInvestigation Unit (AAIU) ofIrelandhas notified the NTSB of an accidentinvolving a B737-8AS that occurred on October 20, 2011. The NTSBhas appointed a U.S. Accredited Representative to assist the AAIU investigationunder the provisions of ICAO…NTSB ERA12CA040Accident · No injuriesData collectionFinal reportEngineering & Research 415-C · Mebane, NCThe pilot's delay in aborting the takeoff.NTSB OPS12IA041Incident · No injuriesIncident investigationFinal reportCessna 172S · Daytona Beach, FLThe departing pilot's incorrect runway selection and non-compliance with an air traffic control clearance. Contributing to the incident was the air traffic controller's inadequate monitoring of the departing aircraft to ensure that the pilot complied with the…NTSB CEN12CA029Accident · Minor injuriesData collectionFinal reportHunt Sparrowhawk · Blair, NEThe pilot/builder’s inadequate installation of a nosewheel steering component, which resulted in a shimmy and a loss of directional control during the takeoff roll.NTSB WPR12FA010Accident · 1 fatalField investigationFinal reportDG Flugzeugbau DG 1000S · Cle Elum, WAThe pilot’s failure to maintain airspeed and control after takeoff, which resulted in an aerodynamic stall.NTSB ENG12IA001Incident · No injuriesIncident investigationFinal reportBoeing 757-251 · Atlanta, GAthe return to service of overhauled airplane engine parts with undetected fatigue cracks, resulting in complete loss of engine power and uncontained engine failure. A contributing factor was the inadequate diffuser and HPT case inspection procedure.NTSB ERA12CA022Accident · No injuriesData collectionFinal reportAeronca 0-58A · Westmoreland, TNThe pilot's inadequate visual lookout and failure to maintain clearance from an obstacle during takeoff.NTSB ERA12LA016Accident · No injuriesLimited investigationFinal reportCessna 180J · Norfolk, VAThe pilot's inability to maintain directional control during takeoff for undetermined reasons. Contributing to the accident was the pilot's delayed decision to abort the takeoff.NTSB ERA12CA013Accident · Minor injuriesData collectionFinal reportLoehle Loehle P-40 · Tullahoma, TNThe pilot's delayed decision to abort the takeoff.NTSB CEN12CA003Accident · Serious injuriesData collectionFinal reportSadler Terry Rans S-7 Courier · Riley, KSA total loss of engine power during takeoff due to fuel starvation as a result of the pilot’s inadequate preflight inspection and failure to ensure that the fuel shutoff valve was turned on before departure.NTSB ERA11CA505Accident · Minor injuriesData collectionFinal reportRobinson Helicopter R44 · Clearwater, FLThe certified flight instructor's delayed remedial action, which resulted in a loss of control and subsequent rollover.NTSB ANC11CA112Accident · No injuriesData collectionFinal reportCessna 180 · Haines, AKThe pilot's loss of directional control during takeoff in a float-equipped airplane for an undetermined reason, which resulted in the airplane colliding with trees and the shore.NTSB ANC11CA113Accident · No injuriesData collectionFinal reportPiper PA-12 · Talkeetna, AKThe pilot’s decision to take off from an off-airport site in variable wind.NTSB ERA11FA504Accident · 1 fatalField investigationFinal reportHutchinson Kenneth A Velocity RG · Sanford, NCThe pilot/owner's intentional flight of his airplane with known mechanical discrepancies (frozen turbocharger waste gate), which resulted in a partial loss of engine power and subsequent collision with trees and terrain shortly after takeoff. Contributing to…NTSB ANC11CA106Accident · No injuriesData collectionFinal reportPiper PA-12 · Beluga, AKThe pilot's decision to take off uphill into rising terrain.NTSB ANC11CA096Accident · No injuriesData collectionFinal reportCessna 170B · Fairbanks, AKThe pilot's failure to maintain control of the airplane while taking off with a gusting crosswind.NTSB ERA11LA496Accident · 1 fatalLimited investigationFinal reportAero Adventure Zephyr II · Sylacauga, ALThe pilot's incapacitation due to a heart attack during takeoff, which led to an in-flight loss of airplane control.NTSB CEN11LA651Accident · Serious injuriesLimited investigationFinal reportNorth American AT-6 · Nunica, MIThe loss of engine power due to fuel starvation during climbout for undetermined reasons, because postaccident examination of the fuel system did not reveal any discrepancies that would have precluded normal engine operation. Contributing to the accident was…NTSB ANC11CA105Accident · No injuriesData collectionFinal reportPiper PA-18-150 · Bethel, AKThe pilot's delayed decision to abort the takeoff.NTSB ANC11CA102Accident · No injuriesData collectionFinal reportCessna 180 · Ambler, AKThe pilot's decision to takeoff with a tailwind, which resulted in a runway excursion.NTSB CEN11LA642Accident · No injuriesLimited investigationFinal reportPiper PA16 · Muskegan, MIThe pilot's loss of directional control during the takeoff roll and the flight instructor's inability to apply remedial action due to the opposite corrective control inputs by the pilot.NTSB ANC11CA094Accident · No injuriesData collectionFinal reportPiper PA-12 · North Pole, AKThe pilot's failure to maintain adequate airspeed during takeoff, resulting in an aerodynamic stall and collision with the water.NTSB WPR11FA424Accident · Serious injuriesField investigationFinal reportConsolidated Aeronautics Lake LA-4-200 · Lakeport, CAThe pilot's decision to continue the takeoff with reduced engine power, which resulted in a collision with terrain during the takeoff initial climb. Contributing to the accident was the partial loss of engine power for reasons that could not be determined…NTSB WPR11CA418Accident · Minor injuriesData collectionFinal reportChristen Industries A-1 · Dorris, CAThe pilot’s failure to maintain lateral aircraft control while taking off with a gusting crosswind.NTSB CEN11LA610Accident · No injuriesLimited investigationFinal reportGrumman Acft ENG Cor-Schweizer G-164A · Monette, ARThe fracture of the throttle cable in tensile overstress because of wear damage, which resulted in the partial loss of engine power.NTSB CEN11LA601Accident · Minor injuriesLimited investigationFinal reportVan's RV-12 · Windom, MNThe pilot's loss of airplane control after liftoff due to his distraction with the unsecured canopy, which he did not lock before takeoff.NTSB CEN11WA617Accident · 4 fatalForeign investigationRobinson R44 · St. Ferdinand, CanadaOn August 27, 2011, at 2115 eastern daylight time, a Robinson R44 helicopter, C-GEBY, sustained substantial damage when it impacted terrain shortly after takeoff near St. Ferdinand, Quebec, Canada. The pilot and three passengers sustained fatal injuries. The…NTSB CEN11CA600Accident · No injuriesData collectionFinal reportCessna 182C · Grand Marais, MNThe pilot's delayed decision to land the airplane when he realized the airplane's performance was insufficient to clear approaching terrain during the initial climb after takeoff. Contributing to the accident was the pilot's inadequate preflight planning.NTSB CEN11CA662Accident · No injuriesData collectionFinal reportPiper PA-30 · Saguache, COThe pilot's failure to maintain airplane control during the aborted takeoff.NTSB CEN11CA627Accident · No injuriesData collectionFinal reportRobinson Helicopter R44 · Batesville, TXThe pilot’s inadequate preflight inspection that failed to ensure all tie-down clamps were removed prior to takeoff, which resulted in the helicopter’s dynamic rollover.NTSB CEN11FA597Accident · 1 fatalField investigationFinal reportNichols Lancair 235 · Heath, OHThe pilot's failure to obtain adequate familiarization with the accident airplane type before the accident flight, which resulted in his failure to maintain airplane control during takeoff.