NTSB investigations, SC
101 cases where the phase of flight was Takeoff.
Cases per year
| 1964 | 2 |
|---|---|
| 1965 | 1 |
| 1967 | 3 |
| 1968 | 2 |
| 1969 | 3 |
| 1970 | 3 |
| 1971 | 1 |
| 1972 | 2 |
| 1973 | 2 |
| 1974 | 2 |
| 1975 | 1 |
| 1976 | 3 |
| 1977 | 6 |
| 1978 | 2 |
| 1979 | 2 |
| 1980 | 2 |
| 1981 | 1 |
| 1983 | 2 |
| 1984 | 2 |
| 1985 | 2 |
| 1987 | 1 |
| 1988 | 3 |
| 1989 | 1 |
| 1991 | 2 |
| 1992 | 2 |
| 1994 | 4 |
| 1995 | 2 |
| 1996 | 2 |
| 1997 | 3 |
| 1998 | 1 |
| 2000 | 1 |
| 2001 | 1 |
| 2002 | 1 |
| 2003 | 1 |
| 2004 | 2 |
| 2005 | 2 |
| 2006 | 2 |
| 2007 | 1 |
| 2008 | 1 |
| 2009 | 1 |
| 2010 | 2 |
| 2011 | 3 |
| 2012 | 1 |
| 2014 | 1 |
| 2015 | 1 |
| 2016 | 3 |
| 2017 | 1 |
| 2019 | 2 |
| 2021 | 2 |
| 2022 | 1 |
| 2023 | 2 |
| 2024 | 1 |
| 2025 | 1 |
| 2026 | 2 |
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 c.\"eventStateOrRegion\" = 'SC' AND c.\"eventCountry\" = 'USA'
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 c."eventStateOrRegion" = 'SC' AND c."eventCountry" = 'USA'
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 ERA26LA157Accident · No injuriesClass 4 · LimitedFinal reportCirrus Design SR22T · Mount Pleasant, SCThe airplane’s encounter with uneven terrain during takeoff, which resulted in a runway excursion and impact with water.NTSB ERA26LA132Accident · Minor injuriesClass 4 · LimitedFinal reportCessna 172L · Bennettsville, SCThe pilot’s failure to maintain clearance from trees on takeoff from a rural road.NTSB ERA26LA017Accident · Serious injuriesClass 4 · LimitedFinal reportTricks Trike Storm · Gaffney, SCThe pilot’s failure to maintain aircraft control during the initial climb, which resulted in an impact with terrain.NTSB ERA25LA051Accident · Minor injuriesClass 3 · LimitedFinal reportJames A Gray Just Aircraft Highlander · Fountain Inn, SCA total loss of engine power for undetermined reasons.NTSB ERA23LA387Accident · No injuriesClass 4 · LimitedFinal reportJohn W Moll Vans RV-7 · Liberty, SCThe pilot’s failure to maintain directional control during the takeoff roll which resulted in a runway excursion and substantial damage to the left wing and left horizontal stabilizer.NTSB ERA23LA294Accident · No injuriesClass 4 · LimitedFinal reportDiamond DA50 · Wagener, SCThe pilot’s decision to take off from a short, grass runway in gusting wind conditions, resulting in a rejected takeoff and runway excursion.NTSB ERA22LA116Accident · No injuriesClass 4 · LimitedFinal reportDehavilland DHC-2 · Gilbert, SCThe pilot’s improper flap setting, which resulted in a collision with trees during a takeoff attempt from a short grass field.NTSB ERA22LA081Accident · Serious injuriesClass 4 · LimitedFinal reportGlobe GC-1B · Bennettsville, SCThe pilot’s inadequate preflight planning, resulting in a takeoff attempt from a grass parking area instead of the runway and subsequent impact with a pole.NTSB ERA21LA227Accident · No injuriesClass 4 · LimitedFinal reportCessna 550 · Charleston, SCThe airplane's impact with a deer during takeoff.NTSB GAA19CA567Accident · No injuriesData collectionFinal reportGeorge W. Felix Mosquito · Kershaw, SCThe pilot's improper cyclic input during takeoff, which resulted in a loss of helicopter control, the skid impacting the ground, and a subsequent dynamic rollover.NTSB GAA19CA416Accident · No injuriesData collectionFinal reportThomas Wild Avid · York, SCThe pilot's inadvertent reduction of power during the initial climb, which resulted in an aerodynamic stall. Contributing to the pilot’s inadvertent reduction of power was his lack of experience with his left hand on the control stick and right hand on the…NTSB ERA18LA054Accident · Minor injuriesLimited investigationFinal reportCessna 177 · Ridgeland, SCThe student pilot’s improper control inputs, which resulted in a loss of control on takeoff. Contributing to the accident was the flight instructor’s inadequate remedial action.NTSB GAA16CA478Accident · No injuriesData collectionFinal reportCessna 180 · Clemson, SCThe pilot’s loss of directional control during the takeoff roll, which resulted in a runway excursion.NTSB GAA16CA306Accident · Minor injuriesData collectionFinal reportS.O.C.A.T.A. Rallye 150 · York, SCThe pilot's failure to maintain directional control during takeoff, which resulted in an impact with a peach tree(s).NTSB GAA16CA181Accident · No injuriesData collectionFinal reportCessna 172 · Orangeburg, SCThe pilot's failure to maintain directional control during the takeoff, resulting in a runway excursion and a nose over.NTSB ERA15CA307Accident · Minor injuriesData collectionFinal reportJohnny F Anderson Buckeye Dream Machin · Trenton, SCThe non-certificated pilot's inadequate preflight inspection, which resulted in a loss of directional control during takeoff, and collision with trees during the subsequent rejected takeoff.NTSB ERA14CA172Accident · No injuriesData collectionFinal reportPiper PA 28-140 · Saluda, SCAn inadvertent encounter with a deer during the takeoff roll.NTSB ERA12FA303Accident · 1 fatalField investigationFinal reportCirrus Design SR22 · Anderson, SCThe pilot's failure to maintain control of the airplane during the aborted landing, which resulted in an aerodynamic stall and impact with terrain.NTSB ERA11CA339Accident · No injuriesData collectionFinal reportKendall W R/Mclaughlin J Rans S-10 Sakota · Bennettsville, SCThe pilot's inadequate preflight familiarization of the airstrip.NTSB ERA11CA324Accident · Minor injuriesData collectionFinal reportAeronca 7AC · Honea Path, SCThe student pilot's loss of control during the takeoff.NTSB ERA11LA208Accident · 1 fatalLimited investigationFinal reportJennings John C Mini Max · Clinton, SCThe pilot's inadequate performance planning, which resulted in a collision with a tree during takeoff.NTSB ERA10LA442Accident · 1 fatalLimited investigationFinal reportStinson 108 · Andrews, SCLoss of engine power due to fuel exhaustion, and the student pilot's failure to adequately preflight the airplane prior to takeoff.NTSB ERA10LA247Accident · No injuriesLimited investigationFinal reportPiper PA 46-350P · Clemson, SCThe airplane's inadvertent collision with deer during a night takeoff. Contributing to the accident was the lack of a deer barrier between the airport and an adjacent wooded area.NTSB ERA09LA264Accident · No injuriesLimited investigationFinal reportMooney M20J · Moncks Corner, SCThe reported partial loss of engine power for undetermined reasons.NTSB DCA08MA098Accident · 4 fatalClass 1 · MajorFinal reportLearjet LR60 · Columbia, SCThe operator’s inadequate maintenance of the airplane’s tires, which resulted in multiple tire failures during takeoff roll due to severe underinflation, and the captain’s execution of a rejected takeoff (RTO) after V1, which was inconsistent with her…NTSB SEA07CA136Accident · Minor injuriesData collectionFinal reportLidgard 4-1200 · Spartanburg, SCThe pilot lost directional control of the airplane during takeoff. A contributing factor was the pilot's lack of experience in the accident airplane make/model.NTSB ATL07CA009Accident · No injuriesData collectionFinal reportLawing Thomas R Exec 162-F · Aiken, SCThe pilot’s failure to adequately compensate for wind conditions during takeoff which resulted in a loss of tail rotor effectiveness and a roll over during an attempted forced landing.NTSB ATL06LA083Accident · Serious injuriesLimited investigationFinal reportMooney M20E · Blacksburg, SCThe pilot's failure to abort the takeoff after the airplane failed to achieve adequate airspeed on the takeoff roll for undetermined reasons. This resulted in an abrupt pull up, inadvertent stall, and in flight collision with wires, trees and the ground.NTSB ATL06LA021Accident · No injuriesLimited investigationFinal reportPiper PA-34-200 · Columbia, SCMaintenance personnel's improper installation of the stabilator trim arm which resulted in separation of a bolt, loss of control during takeoff, and a subsequent hard landing.NTSB ATL05CA127Accident · No injuriesData collectionFinal reportSchweizer 269C-1 · Landrum, SCThe pilot's improper use of the flight controls (collective pitch and cylic controls) during a take off to a hover resulting in the helicopter encountering dynamic roll over and rolling over on its right side.NTSB ATL04CA184Accident · No injuriesData collectionFinal reportPiper PA-28-140 · Mount Pleasant, SCGround collision with an animal (deer) during an attempted takeoff.NTSB ATL04LA065Accident · No injuriesLimited investigationFinal reportAero Commander 500 · Allendale, SCThe failure of the hydraulic brake system accumulator due to a ruptured diaphragm. A factor was the ditch.NTSB ATL03LA034Accident · No injuriesLimited investigationFinal reportCessna 172S · Mt. Pleasant, SCThe student pilot's failure to maintain directional control during the takeoff roll, which resulted in a loss of control and collision with terrain.NTSB MIA02LA132Accident · No injuriesLimited investigationFinal reportCessna 172N · Pickens, SCThe pilot's improper preflight planning/preparation that resulted in the airplane's gust lock being left installed which resulted in a loss of control during the takeoff roll and damage to the airplane when it exited the departure end of the runway and…NTSB ATL01LA066Accident · No injuriesLimited investigationFinal reportPiper PA-22-150 · Pomaria, SCThe pilot's improper operation of the flight controls while attempting a takeoff from an unimproved surface. A factor was rough and uneven terrain.NTSB MIA00LA159Accident · Minor injuriesLimited investigationFinal reportRichard Shaffer Aircamper GN-1 · Florence, SCThe failure of the pilot to maintain directional control after takeoff resulting in the uncontrolled descent and impact on a closed runway.NTSB MIA98LA077Accident · Minor injuriesLimited investigationFinal reportCessna 152 · Georgetown, SCthe pilot's decision to attempt a takeoff from an unsuitable area of roadway, following a forced landing after the engine had lost power, due to fuel exhaustion; and his failure to maintain clearance from obstructions, while attempting the takeoff. The…NTSB ATL97LA140Accident · No injuriesLimited investigationFinal reportCessna 172N · Greenville, SCthe pilot's improper use of the elevator control and delayed liftoff during takeoff, which resulted in an inadvertent porpoise, collision with the runway, and collapse of the nose gear as he aborted the takeoff.NTSB MIA97LA169Accident · No injuriesLimited investigationFinal reportCessna Wren 182G-460 · Spartanburg, SCthe pilot's inadequate preflight planning/preparation, by failure to survey the takeoff area, and his delay in aborting the takeoff. Upsloping terrain and high vegetation in the takeoff area were related factors.NTSB MIA97LA138Accident · Minor injuriesLimited investigationFinal reportPiper PA-28-160 · Pickens, SCfailure of the student pilot to maintain directional control during the takeoff roll from a touch-and-go landing, which resulted in the airplane going off the side of the runway, down an embankment, and into brush/trees.NTSB ATL96LA107Accident · Serious injuriesLimited investigationFinal reportGrumman G-164 · Scotia, SCa loss of engine power for undetermined reasons. A factor was the unsuitable terrain for a forced landing.NTSB MIA96FA130Accident · 1 fatalField investigationFinal reportHelio H-295 · Gaffney, SCfailure of the pilot to remove the control lock during the preflight, and his failure to check the flight controls before taking off.NTSB ATL95LA116Accident · 1 fatalLimited investigationFinal reportSmith Monnett Moni · Cheraw, SCThe loss of engine power for unknown reasons, and the pilot's failure to maintain flying speed, which resulted in impact with the ground while the airplane was in a stalled condition.NTSB ATL95LA093Accident · Minor injuriesLimited investigationFinal reportLet L-23 Super Blanik · Spartanburg, SCThe pilot's inadvertent use speed brakes during takeoff.NTSB ATL95LA026Accident · No injuriesLimited investigationFinal reportCessna 172 · N. Myrtle Beach, SCThe pilot's failure to maintain directional control during a crosswind takeoff.NTSB ATL94LA175Accident · No injuriesLimited investigationFinal reportCessna 182 · Lancaster, SCThe pilot's delay in taking remedial action when the engine failed to develop takeoff RPM. A factor was conditions favorable for the formation of carburetor ice.NTSB ATL94LA083Accident · No injuriesLimited investigationFinal reportCessna 172K · Spartanburg, SCThe inadequate visual lookout by the pilot of Cessna 172K, N711GT.NTSB ATL94LA080Accident · Minor injuriesLimited investigationFinal reportCessna 188 · Latta, SCThe pilot's failure to obtain flying speed and the premature lift off which resulted in a stall.NTSB ATL93LA032Accident · No injuriesLimited investigationFinal reportVan Arsdell/Brent,M. Rutan Long EZ · Charleston, SCThe pilot's inadequate pre-flight planning and his failure to note the raised arresting device near the runway threshold.NTSB ATL93LA020Accident · No injuriesLimited investigationFinal reportMaule M4-210C · Pickens, SCThe pilot's failure to follow normal before takeoff procedures which included placing the propeller lever in the high RPM low pitch position. The pilot also delayed in aborting the takeoff attempt and applied hard braking which resulted in a nose over.