NTSB investigations, 2020
112 cases where the phase of flight was Initial climb.
Cases per year
| 1962 | 3 |
|---|---|
| 1963 | 4 |
| 1964 | 505 |
| 1965 | 555 |
| 1966 | 582 |
| 1967 | 587 |
| 1968 | 577 |
| 1969 | 582 |
| 1970 | 552 |
| 1971 | 541 |
| 1972 | 507 |
| 1973 | 482 |
| 1974 | 556 |
| 1975 | 543 |
| 1976 | 521 |
| 1977 | 556 |
| 1978 | 566 |
| 1979 | 502 |
| 1980 | 505 |
| 1981 | 499 |
| 1982 | 490 |
| 1983 | 507 |
| 1984 | 466 |
| 1985 | 418 |
| 1986 | 394 |
| 1987 | 380 |
| 1988 | 368 |
| 1989 | 348 |
| 1990 | 351 |
| 1991 | 324 |
| 1992 | 306 |
| 1993 | 307 |
| 1994 | 292 |
| 1995 | 289 |
| 1996 | 244 |
| 1997 | 272 |
| 1998 | 266 |
| 1999 | 239 |
| 2000 | 221 |
| 2001 | 219 |
| 2002 | 200 |
| 2003 | 227 |
| 2004 | 210 |
| 2005 | 204 |
| 2006 | 180 |
| 2007 | 202 |
| 2008 | 212 |
| 2009 | 173 |
| 2010 | 162 |
| 2011 | 177 |
| 2012 | 193 |
| 2013 | 122 |
| 2014 | 130 |
| 2015 | 165 |
| 2016 | 141 |
| 2017 | 149 |
| 2018 | 155 |
| 2019 | 146 |
| 2020 | 112 |
| 2021 | 166 |
| 2022 | 161 |
| 2023 | 163 |
| 2024 | 143 |
| 2025 | 134 |
| 2026 | 106 |
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\") = 2020
AND c.\"mKey\" IN (SELECT case_mkey FROM case_phases WHERE main = 350)
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") = 2020
AND c."mKey" IN (SELECT case_mkey FROM case_phases WHERE main = 350)
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 CEN21LA101Accident · No injuriesClass 3 · LimitedFinal reportBeech 65-A80-8800 · Alexandria, MNThe pilot’s decision to attempt takeoff with frost covering the airplane and rotating below the published rotation speed, which led to exceedance of the airplane’s critical angle of attack and an aerodynamic stall.NTSB CEN21LA092Accident · 1 fatalClass 3 · LimitedFinal reportSonex Tailwheel · Burleson, TXA total loss of engine power due to engine seizure. Contributing to the accident was the pilot decision not to orbit the airport, as originally planned.NTSB WPR21LA070Accident · 1 fatalClass 3 · LimitedFinal reportSilverLight AR-1 · Heber City, UTThe pilot’s failure to follow the procedures for takeoff in the Pilot Operating Handbook, which resulted in a loss of control and collision with the terrain. Contributing to the accident was the pilot’s failure to receive additional training in the gyroplane.NTSB CEN21WA094AccidentClass 5 · ForeignAficionado MINI-MAX Eros · Urbanización Bassetes, SpainNTSB WPR21LA068Accident · Serious injuriesClass 3 · LimitedFinal reportCirrus Design SR22 · Ogden, UTThe partial loss of engine power for reasons that cannot be determined due to lack of available evidence.NTSB CEN21LA082Accident · No injuriesClass 3 · LimitedFinal reportPiper PA12 · Spearfish, SDA total loss of engine power during initial climb for undetermined reasons.NTSB CEN21LA075Accident · 1 fatalClass 3 · LimitedFinal reportPiper PA32 · Windom, MNThe pilot’s spatial disorientation shortly after takeoff into night instrument meteorological conditions, which resulted in loss of airplane control and subsequent impact with terrain.NTSB ERA21LA052Accident · 1 fatalClass 3 · LimitedFinal reportLancair Legacy FG · Hollywood, FLThe pilot/owner’s failure to properly reinstall the number 1 cylinder spark plug, which resulted in a partial loss of engine power during the initial climb. Contributing was the pilot's exceedance of the airplane’s critical angle of attack during an attempted…NTSB GAA21WA005Accident · 1 fatalClass 5 · ForeignBeech 95B55 · Sao Pedro, SP, BrazilNTSB WPR21LA052Accident · Minor injuriesClass 3 · LimitedFinal reportBellanca 7GCBC · Fallbrook, CAA partial loss of engine power for reasons that could not be determined with the available evidence.NTSB CEN21LA044Accident · 1 fatalClass 3 · LimitedFinal reportPiper PA-22-135 · Dunn Center, NDThe noninstrument-rated pilot’s decision to depart into instrument meteorological conditions, which resulted in a loss of control.NTSB CEN21LA046Accident · Minor injuriesClass 4 · LimitedFinal reportNavion A · Fremont, MIThe pilot’s improper positioning of the fuel selector during takeoff, which was not in accordance with the preflight checklist and resulted in fuel starvation, a subsequent total loss of engine power, and an aerodynamic stall during an attempted forced…NTSB CEN21LA040Accident · Serious injuriesClass 3 · LimitedFinal reportPiper J3C · Weslaco, TXThe pilot of N87715 inadvertently allowed his airplane to drift right of the runway during the climb after a touch-and-go landing, and the pilot of N6463H did not maintain adequate separation from the other airplane during his go-around. Contributing to the…NTSB ERA21LA030Accident · Minor injuriesClass 3 · LimitedFinal reportGrumman AA5 · Baxley, GAA partial loss of engine power for undetermined reasons.NTSB CEN21FA025Accident · 1 fatalClass 3 · FieldFinal reportBeech V35 · Slidell, LAThe pilot’s loss of control shortly after departure for reasons that could not be determined based on the available information.NTSB CEN21LA018Accident · 2 fatalClass 3 · LimitedFinal reportCessna T182 · Houma, LAImpact with terrain for reasons that could not be determined with the available information.NTSB WPR21LA015Accident · Minor injuriesClass 3 · LimitedFinal reportCessna 152 · South Hill, WAThe pilot’s failure to ensure that the fuel supply had been completely drained of water, which resulted in a partial loss of engine power during takeoff due to water contamination.NTSB ERA21LA027Accident · Minor injuriesClass 4 · LimitedFinal reportMuse Stol CH 750 · Sewanee, TNThe airplane’s encounter with a downdraft during the initial climb, which resulted in an impact with trees.NTSB ERA21LA022Accident · No injuriesClass 4 · LimitedFinal reportChampion 7FC · Moneta, VAThe fight instructor’s failure to ensure that the fuel selector handle was in the correct position, which resulted in a total loss of engine power during initial climb due to fuel starvation.NTSB ERA21LA018Accident · No injuriesClass 4 · LimitedFinal reportZenith Stol CH801 · Apison, TNA total loss of engine power due to fuel starvation, as a result of an incorrectly placarded fuel selector.NTSB ERA21LA019Accident · No injuriesClass 3 · LimitedFinal reportPiper PA32 · Atlanta, GAA partial loss of engine power during takeoff due to a right magneto anomaly, which resulted in the pilot’s decision to abort the takeoff and the subsequent runway excursion.NTSB DCA21WA006IncidentClass 5 · ForeignBoeing 777 · Guiuan, Eastern Samar, PhilippinesNTSB CEN21WA115Accident · Serious injuriesClass 5 · ForeignCessna 185A · Romsey, United KingdomNTSB WPR21LA011Accident · 1 fatalClass 3 · LimitedFinal reportRans S-7 · Spirit Lake, IDThe pilot’s exceedance of the airplane's critical angle of attack during the initial climb after takeoff, which resulted in an aerodynamic stall.NTSB WPR21LA003Accident · 1 fatalClass 3 · LimitedFinal reportEvolution Revo · Hawthorne, CAThe pilot’s failure to maintain aircraft control during takeoff.NTSB ERA21LA006Accident · Minor injuriesClass 4 · LimitedFinal reportPiper PA28 · Fulton, NYThe mechanic’s improper maintenance, which resulted in the crankshaft expansion plug dislodging in flight and a subsequent forced landing.NTSB ERA21LA008Accident · No injuriesClass 3 · LimitedFinal reportExperimental Quad City Challenger II · Northfield, NHA total loss of engine power due to oil starvation of the No. 1 cylinder. Contributing to the accident was the pinched No. 1 cylinder oil injection line.NTSB DCA21WA004Incident · No injuriesClass 4 · ForeignBoeing 787-800 · Amsterdam, NetherlandsNTSB CEN20LA425Accident · Minor injuriesClass 3 · LimitedFinal reportCessna 172N · Spring, TXThe student pilot’s failure to maintain airplane control during climb and subsequent impact with terrain.NTSB WPR20LA320Accident · Serious injuriesClass 3 · LimitedFinal reportGreat Lakes 2T1A · San Diego, CAA loss of engine power for reasons that could not be determined, which resulted in a hard landing off airport.NTSB ERA20LA325Accident · Minor injuriesClass 4 · LimitedFinal reportErcoupe F 1 · West Kingston, RIThe pilot’s failure to conduct a proper preflight inspection and ensure the fuel was uncontaminated, which resulted in a partial loss of engine power and forced landing.NTSB WPR20LA310Accident · Serious injuriesClass 3 · LimitedFinal reportVans RV4 · Clovis, NMThe pilot’s failure to maintain lateral control during initial climb due to distraction, which resulted in an in-flight upset and impact with terrain.NTSB CEN20CA406Accident · Minor injuriesClass 4 · Data collectionFinal reportPik PIK-20D · Union, ILThe pilot’s failure to maintain directional control during takeoff that resulted in a collision with another glider that was parked close to the departure runway, and the pilot’s improper decision to attempt a takeoff without ensuring he had safe clearance…NTSB ANC20LA093Accident · Minor injuriesClass 3 · LimitedFinal reportPiper PA22 · Homer, AKThe total loss of engine power during the initial climb due to fuel contamination. Contributing to the accident was the corrosion of the fuel tank filler necks, which resulted in water intrusion into the fuel tanks.NTSB WPR20LA303Accident · 2 fatalClass 3 · LimitedFinal reportNavion B · Van Nuys, CAThe pilot’s failure to maintain control of the airplane during an abrupt turn after takeoff at a low altitude, which resulted in an aerodynamic stall.NTSB ERA20LA312Accident · 1 fatalClass 3 · LimitedFinal reportQuad City Challenger · Sweetwater, TNA loss of control for reasons that could not be determined based on the available information.NTSB CEN20LA383Accident · Minor injuriesClass 3 · LimitedFinal reportStearman A75N1(PT17) · Henderson, TXThe pilot’s failure to maintain proper airspeed, resulting in an aerodynamic stall after takeoff.NTSB CEN20LA373Accident · 1 fatalClass 3 · LimitedFinal reportPiper PA24 · Midland, MIThe loss of engine power due to fuel starvation.NTSB GAA20WA133Accident · 4 fatalForeign investigationCommander 114 · Fur airport, DenmarkThe government of Denmark has notified the NTSB of an accident involving a COMMANDER 114 airplane that occurred on August 30, 2020. The NTSB has appointed a U.S. Accredited Representative to assist the government of Denmark's investigation under the…NTSB DCA20WA142Accident · No injuriesForeign investigationBoeing 737 · Tokyo, JapanThe JTSB of Japan has notified the NTSB of an accident involving a Boeing 737 airplane that occurred on August 29, 2020. The NTSB has appointed a U.S. Accredited Representative to assist the JTSB investigation under the provisions of ICAO Annex 13.All…NTSB GAA20WA134Accident · 1 fatalForeign investigationBeech 35 · Teresina, BrazilThe government of Brazil has notified the NTSB of an accident involving a BEECH 35 airplane that occurred on August 28, 2020. The NTSB has appointed a U.S. Accredited Representative to assist the government of Brazil's investigation under the provisions of…NTSB GAA20WA132Accident · 2 fatalClass 5 · ForeignAviamilano Falco F8L · Sibari, ItalyNTSB CEN20LA381Accident · No injuriesClass 3 · LimitedFinal reportPiper PA36 · Ord, NEThe pilot’s failure to maintain adequate airspeed while in a turn during initial climb and his exceedance of the airplane’s critical angle of attack, which resulted in an aerodynamic stall at a low altitude.NTSB CEN20LA336Accident · 2 fatalClass 3 · LimitedFinal reportCirrus SR22 · Osage Beach, MOAn in-flight fire and subsequent loss of airplane control shortly after takeoff. The source of the in-flight fire or the reason for the loss of airplane control could not be determined based on the available information.NTSB ERA20LA286Accident · Minor injuriesClass 3 · LimitedFinal reportJust JA 30 Superstol · Clover, SCThe separation of a spark plug lead, resulting in a partial loss of engine power and collision with trees.NTSB WPR20LA278Accident · Minor injuriesClass 3 · LimitedFinal reportPiper PA28 · Harlowton, MTThe pilot’s failure to follow the appropriate takeoff procedures, which resulted in a collision with terrain.NTSB ERA20LA288Accident · Minor injuriesClass 3 · LimitedFinal reportCessna 170 · Ardmore, TNThe pilot’s inadequate preflight planning and his decision to depart from a constrained, grass-covered field in elevated-density altitude conditions, which resulted in reduced takeoff and climb performance and a subsequent forced landing.NTSB CEN20LA329Accident · Serious injuriesClass 3 · LimitedFinal reportPiper PA22 · Burlington, WIA partial loss of engine power due to the formation of carburetor ice while on the ground, which resulted in reduced climb capability and impact with trees during the initial climb.NTSB ANC20WA079Accident · No injuriesForeign investigationCessna 172 · Valdau, RussiaThe government of Russia has notified the NTSB of an accident involving a CESSNA 172 airplane that occurred on August 02, 2020. The NTSB has appointed a U.S. Accredited Representative to assist the government of Russia's investigation under the provisions of…NTSB CEN20CA320Accident · Minor injuriesClass 4 · Data collectionFinal reportCessna A188 · Memphis, MOThe pilot did not remove the rudder gust lock during the preflight inspection, which resulted in a forced landing and collision with a tree.