NTSB investigations, 2000
281 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\") = 2000
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") = 2000
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 SEA01FA032Accident · 2 fatalField investigationFinal reportHughes 369HS · Pierce, IDWhile maneuvering, clearance from an object was not maintained. A tree was a factor.NTSB FTW01LA042Accident · Serious injuriesLimited investigationFinal reportRobinson R-22B2 · Mesquite, TXThe student pilot's abrupt control input, which resulted in a tail rotor blade strike. Factors were the CFI's delay in taking remedial action and the student pilot's lack of total experience.NTSB DEN01LA029Accident · No injuriesLimited investigationFinal reportCessna 172E · Salt Lake City, UTthe lack of suitable terrain for a forced landing. A factor was a total power loss due to a connecting rod failure.NTSB MIA01FA043Accident · 1 fatalField investigationFinal reportPiper PA-31-325 · Belvidere, NCThe pilot's failure to maintain airplane control due to spatial disorientation while maneuvering in instrument meteorological conditions resulting in the airplane entering a descending turn and crashing into terrain.NTSB MIA01FA041Accident · 2 fatalField investigationFinal reportChristen Industries Pitts S-2B · Weston, FLAn inflight loss of control by both pilots while maneuvering, which resulted in an inverted flat spin, an uncontrolled descent, and an impact with terrain/water. A factor contributing to the accident was the failure of both pilots to ensure that the…NTSB LAX01LA052Accident · Serious injuriesLimited investigationFinal reportCessna 172H · San Diego, CAThe pilot's inadequate preflight planning and weather evaluation that resulted in the inadvertant entry into instrument meteorological conditions while conducting visual flight. A factor was fog and the night visual conditions.NTSB MIA01LA039Accident · Minor injuriesLimited investigationFinal reportRobinson R22 · Marathon, FLThe certified flight instructors disregard of an FAA weather forecast stating VFR flight not recommended resulting in VFR flight into known instrument flight conditions, loss of aircraft control due to spatial disorientation, and subsequent in-flight descent…NTSB SEA01LA029Accident · No injuriesLimited investigationFinal reportKaman K-1200 · Prineville, ORThe pilot's failure to adequately compensate for wind conditions.NTSB MIA01LA037Accident · No injuriesLimited investigationFinal reportAir Tractor AT-502B · Belle Glade, FLThe pilot's failure to maintain a visual lookout during a swath run resulting in an in-flight collision with known wires along the swath run, and a loss of directional control on landing roll due to flight control damage sustained during the in-flight…NTSB DEN01TA019Accident · No injuriesFinal reportHughes 369D · Montrose, COthe foreign object damage to a main rotor blade, while maneuvering.NTSB CHI01FA044Accident · 2 fatalField investigationFinal reportBeech 95-B55 · Milltown, WIThe flight instructor's inadequate supervision of the flight, the flightcrew not maintaining control of the airplane, and the flight instructor's delayed remedial action which resulted in the inadvertent spin. Factors to the accident were the inadvertent spin…NTSB DEN01FA018Accident · 2 fatalField investigationFinal reportCessna 182P · Taos, NMthe pilot's failure to maintain terrain clearance while maneuvering in a narrow canyon. Contributing factors were the down slope winds in excess of 50 knots and the pilot's improper decision to enter the canyon given the wind conditions.NTSB FTW01LA029Accident · 2 fatalLimited investigationFinal reportLandes/Karich/Schmidt Christen Eagle II · Tyler, TXthe pilot's performance of aerobatic maneuvers at a low altitude and his failure to maintain terrain clearance.NTSB NYC01FA040Accident · 3 fatalField investigationFinal reportMooney M20K · Rixford, PAThe pilot's loss of control of the airplane while maneuvering. Factors included low ceilings and the pilot's lack of instrument flight experience.NTSB SEA01LA024Accident · No injuriesLimited investigationFinal reportBell 206 B3 · Lake Kachess, WAThe pilot's failure to comply with the flight manual regarding the use of an induction system deflector kit (snow baffles) while operating in snow, and the ingestion of foreign material/snow that resulted in an engine flameout while hovering. A snow baffle…NTSB FTW01FA023Accident · 1 fatalField investigationFinal reportHall Glasair III · Gilmer, TXthe pilot's performance of aerobatic maneuvers at a low altitude and his failure to maintain aircraft control. A contributing factor was the pilot's lack of aerobatic experience.NTSB SEA01FA100Accident · 2 fatalField investigationFinal reportCessna U206F · Cambridge, IDAirspeed not maintained and an inadvertent stall while maneuvering. Mountainous terrain was a factor.NTSB MIA01FA028Accident · 1 fatalField investigationFinal reportLockheed-Martin F-16CG · Bradenton, FLthe failure of the F-16 flight lead pilot and F-16 accident pilot to maintain an adequate visual lookout while maneuvering. Factors contributing to the accident were: the F-16 flight lead pilot’s decision to discontinue radar traffic advisory service, the…NTSB LAX01LA041Accident · 2 fatalLimited investigationFinal reportExperimental Glasair 1RG · Temecula, CAthe pilot's failure to maintain an adequate terrain clearance altitude while performing aerobatic maneuvers, which resulted in the in-flight collision with terrain.NTSB DEN01FA013Accident · 1 fatalField investigationFinal reportCessna 175 · Hanksville, UTthe pilot's failure to maintain control of the airplane while maneuvering at low altitude, and his physical impairment due to alcohol and drugs. A contributing factor was the downdraft.NTSB ANC01LA020Accident · No injuriesLimited investigationFinal reportEurocopter AS-350B2 · Girdwood, AKThe pilot's failure to maintain adequate altitude/clearance from terrain. A factor in the accident was flat light conditions.NTSB NYC01LA029Accident · Minor injuriesLimited investigationFinal reportCessna 177B · Prosperity, PAThe failure of the dual magneto ignition system points to open.NTSB FTW01FA015Accident · 2 fatalField investigationFinal reportBeech BE-76 · Tulsa, OKthe instructor pilot's failure to maintain the airplane's minimum controllable airspeed during a single-engine go-around, which resulted in his loss of control of the airplane. Contributory factors were the engine fire, the pilot's failure to follow the…NTSB SEA01LA011Accident · Minor injuriesLimited investigationFinal reportCessna 172 · Conconully, WAThe pilot's failure to maintain clearance from the trees while flying at a very low altitude in mountainous/hilly terrain. Factors include, forested mountainous/hilly terrain, flight at a very low altitude, and an encounter with a downdraft.NTSB LAX01LA029Accident · 1 fatalLimited investigationFinal reportPiper PA-28-140 · Gorman, CAthe pilot's failure to maintain airspeed while maneuvering, which resulted in an inadvertent stall. A contributing factor was the pilot's use of impairing medications.NTSB FTW01FA014Accident · 1 fatalField investigationFinal reportCessna 150L · Rockport, TXthe loss of engine power for undetermined reasons, and the pilot's subsequent failure to maintain control of the airplane during the ensuing forced landing.NTSB LAX01FA024Accident · 2 fatalField investigationFinal reportCessna 152 · Alpine, CAThe pilot's failure to maintain adequate airspeed resulting in an inadvertent stall and collision with terrain.NTSB NYC01LA022Accident · Serious injuriesLimited investigationFinal reportHoward Weedhopper · Fordsville, KYAn engine failure for undetermined reasons and the pilot's low altitude flight.NTSB FTW01LA012Accident · Serious injuriesLimited investigationFinal reportCessna 188B · Stanton, TXThe failure of the pilot to maintain clearance with the power lines, while maneuvering during an aerial application flight.NTSB CHI01FA017Accident · 2 fatalField investigationFinal reportBeech 95-C55 · Homer, NEThe inadequate remedial action the flightcrew had during the stall recovery maneuver and the flight instructor's inadequate supervision. A factor was the intentional stall the flightcrew was performing.NTSB FTW01LA011Accident · 1 fatalLimited investigationFinal reportAir Tractor AT-301 · Littlefield, TXthe pilot's failure to maintain clearance with a guy wire while maneuvering during an aerial application flight.NTSB DEN01LA004Accident · Serious injuriesLimited investigationFinal reportCessna 172N · Jensen, UTan undershoot due to misjudging distance/altitude during an emergency landing. Factors were: inadequate preflight, failure to refuel, fuel exhaustion, operating with an inoperative fuel gauge, and failure to attain a proper glide path during approach.NTSB MIA01FA004Accident · 2 fatalField investigationFinal reportRobinson R-22 · Pembroke Pines, FLThe pilot's failure to maintain rotor rpm and the proper rate of descent during a forced landing/autorotation resulting in an in-flight collision with terrain. Contributing to the accident was a loss of engine power due to the failure of the No. 3 exhaust…NTSB FTW01FA003Accident · 1 fatalField investigationFinal reportBeech B19 · Umbarger, TXThe pilot's loss of control due to spatial disorientation. Contributing factors were the low ceilings, the dark night illumination, the lack of visual cues, and the pilot's lack of instrument flight qualification or experience.NTSB DEN01LA002Accident · Serious injuriesLimited investigationFinal reportHughes 369FF · Baggs, WYimpact with terrain following a total loss of engine power due to fatigue failure of the turbine-to-compressor coupling. A contributing factor was the unsuitable terrain for a forced landing.NTSB SEA01FA001Accident · 1 fatalField investigationFinal reportCessna 208B · Lummi Island, WAThe pilot's attempted flight into known adverse weather conditions, and his subsequent failure to maintain altitude above, or clearance with, trees. Factors contributing to the accident included low ceilings, fog, the pilot's low-altitude flight, rising…NTSB LAX01LA002Accident · Minor injuriesLimited investigationFinal reportRobinson R22 Beta · Long Beach, CAThe dual student's improper use of the collective and the flight instructor's inadequate supervision during the practice hovering autorotation maneuver. A factor was the underlying soft dirt terrain, which promoted the rollover event.NTSB CHI01FA001Accident · 1 fatalField investigationFinal reportPiper PA-44-180 · Rapid City, SDSuicideNTSB DEN00FA182Accident · 1 fatalField investigationFinal reportSukhoi SU-26MX · Telluride, COthe pilot's failure to maintain aircraft control while maneuvering, and the subsequent inadvertent stall/spin to the ground. A contributing factor was the high density altitude weather condition.NTSB FTW00LA270Accident · 1 fatalLimited investigationFinal reportCessna 188B · Stanton, TXThe pilot's failure to maintain clearance from guy wires and tower.NTSB SEA00LA193Accident · No injuriesLimited investigationFinal reportHughes 269B · Laurel, MTFailure to maintain aircraft control during hover operations. Inadequate remedial action by the pilot was a factor.NTSB SEA00LA192Accident · No injuriesLimited investigationFinal reportAir Tractor AT-602 · Columbia River, WAClearance from a transmission power line was not maintained. The power line was a factor.NTSB FTW00FA268Accident · 2 fatalField investigationFinal reportCessna 152 · Navasota, TXthe pilot's failure to maintain control of the airplane due to spatial disorientation. Contributory factors were the clouds, dark night light conditions, the pilot's lack of total instrument flight time, and the pilot's self-induced pressure to complete the…NTSB SEA00LA188Accident · Minor injuriesLimited investigationFinal reportHughes 269B · Burlington, WAMintenance personnel not following the mandatory service bulletin procedure of not exceeding 0.0005 inch paint thickness on the cylinder flange. Factors were the fatigue separation of multiple cylinder hold down bolts resulting in looseness of the cylinder;…NTSB SEA00LA186Accident · 1 fatalLimited investigationFinal reportde Havilland DH-100 MK.6 · Ontario, ORThe pilot's failure to maintain adequate airspeed during low-altitude maneuvering flight, resulting in an accelerated stall and spin. A factor was the pilot's intentional low-altitude maneuvering flight.NTSB LAX00FA347Accident · Minor injuriesField investigationFinal reportCessna 207A · Valle, AZImproper maintenance and adjustment of the engine magnetos resulting in a loss of optimum performance during a critical takeoff that required peak engine performance.NTSB FTW00LA269Accident · Serious injuriesLimited investigationFinal reportRobinson R-22B · Tomball, TXThe student pilot's abrupt lowering of the collective. Factors were the student pilot's lack of experience in helicopters and the CFI's delayed remedial action.NTSB ANC00LA132Accident · No injuriesLimited investigationFinal reportEurocopter AS-350B-3 · Ketchikan, AKThe pilot's inadvertent activation of the collective flight stop/emergency fuel augmentation switch, which resulted in engine and main rotor overspeeds, thereby precipitating failures of the tail rotor drive shaft coupling and power turbine blades. A factor…NTSB LAX00LA345Accident · No injuriesLimited investigationFinal reportGrumman-Schweizer G-164B · Tracy, CALoss of engine power due to failure and separation of the number one connecting rod.NTSB FTW00LA267Accident · Minor injuriesLimited investigationFinal reportPZL-Mielec M-18A · Jacksonville, ARthe corrosion and fatigue cracking of the right wing attachment fitting, which resulted in the right wing separating in flight. A factor was the failure of the operator to perform the recommended wing attachment fitting inspection.