# NTSB investigations, OK: Maneuvering

NTSB aviation accident and incident investigations since 1962: the probable cause, findings, aircraft, crew, weather and docket of each, linked to the FAA registry and the FAA’s own reports.

Page 1 of 8 · 370 cases

## Latest cases

- [NTSB WPR26LA277](https://openairdocs.org/ntsb/WPR26LA277.md): Bell 206B III · Stonewall, OK · Accident · Serious injuries · Class 4 · Limited · Final report · Jul 21, 2026 · N2193X · Substantial damage
  > The pilot’s failure to maintain clearance from power lines while conducting a low-altitude aerial application.
- [NTSB CEN26LA175](https://openairdocs.org/ntsb/CEN26LA175.md): Hiller UH-12E · Chickasha, OK · Accident · No injuries · Class 3 · Limited · Preliminary report · Apr 30, 2026 · N22SP · Substantial damage
  > On April 30, 2026, about 1730 central daylight time, a Hiller UH-12E, N22SP, was substantially damaged when it was involved in an accident near Chickasha, Oklahoma. The pilot was not injured. The helicopter was operated as a Title 14 Code of Federal…
- [NTSB WPR26FA054](https://openairdocs.org/ntsb/WPR26FA054.md): Hughes 369D · Pryor, OK · Accident · 1 fatal · Class 3 · Field · Preliminary report · Dec 5, 2025 · N161LA · Substantial damage
  > On December 5, 2025, about 0858 central standard time, a Hughes 369D, N161LA, was substantially damaged when it was involved in an accident near Pryor, Oklahoma. The pilot was fatally injured. The helicopter was operated as a Title 14 Code of Federal…
- [NTSB CEN24LA104](https://openairdocs.org/ntsb/CEN24LA104.md): Piper PA24 · Cherokee, OK · Accident · No injuries · Class 3 · Limited · Final report · Feb 2, 2024 · N4284 · Substantial damage
  > A partial loss of engine power for reasons that could not be determined. Contributing to the accident was the presence of ground fog, which hindered the landing approach and resulted in the pilot inadvertently landing long and impacting a fence during the…
- [NTSB CEN23LA226](https://openairdocs.org/ntsb/CEN23LA226.md): Temco GC-1B · Bristow, OK · Accident · Serious injuries · Class 3 · Limited · Final report · Jun 3, 2023 · N3830K · Substantial damage
  > The loss of engine power due to carburetor ice due to the pilot’s delayed application of carburetor heat.
- [NTSB CEN23LA147](https://openairdocs.org/ntsb/CEN23LA147.md): Bell OH-58A · Wade, OK · Accident · Minor injuries · Class 4 · Limited · Final report · Mar 29, 2023 · N82851 · Substantial damage
  > The total loss of engine power due to fuel contamination.
- [NTSB CEN23FA079](https://openairdocs.org/ntsb/CEN23FA079.md): Piper PA-32-301T · Kingfisher, OK · Accident · 2 fatal · Class 3 · Field · Final report · Jan 16, 2023 · N8266D · Destroyed
  > An oil leak of undetermined origin that resulted in an in-flight engine compartment fire and subsequent loss of airplane control.
- [NTSB CEN22LA395](https://openairdocs.org/ntsb/CEN22LA395.md): Boeing A75N1(PT17) · Prue, OK · Accident · Serious injuries · Class 4 · Limited · Final report · Aug 27, 2022 · N132JD · Substantial damage
  > The pilot’s failure to maintain clearance from power lines during intentional low-level maneuvering.
- [NTSB CEN22LA321](https://openairdocs.org/ntsb/CEN22LA321.md): Just Highlander · Bennington, OK · Accident · 2 fatal · Class 3 · Limited · Final report · Jul 18, 2022 · N7514N · Substantial damage
  > The pilot’s exceedance of the airplane’s critical angle of attack which resulted in an aerodynamic stall and loss of control.
- [NTSB CEN22FA053](https://openairdocs.org/ntsb/CEN22FA053.md): Bell 206 · Perry, OK · Accident · 1 fatal · Class 3 · Field · Final report · Nov 28, 2021 · N59600 · Destroyed
  > A loss of lateral control during a hover that resulted in an impact with terrain. Based on the available evidence, the reason for the loss of lateral control could not be determined.
- [NTSB CEN21FA314](https://openairdocs.org/ntsb/CEN21FA314.md): PZL Mielec M18 · Seiling, OK · Accident · 1 fatal · Class 3 · Field · Final report · Jul 12, 2021 · N9310R · Destroyed
  > The pilot’s in-flight loss of control due to the structural failure of a wing fitting and separation of the outboard wing section. Also causal were the inadequate wing fitting inspections, which failed to detect the initial corrosion and crack before it…
- [NTSB CEN21LA216](https://openairdocs.org/ntsb/CEN21LA216.md): Aerospatiale AS350 B2 Ecureuil · Yukon, OK · Accident · No injuries · Class 3 · Limited · Final report · May 12, 2021 · N841BP · Destroyed
  > The pilot receiving instruction’s untimely and unidentified inadvertent activation of the hydraulic cut-off switch, which turned off the hydraulic system while the helicopter was at slow airspeed followed by a rapid power increase, which resulted in a loss of…
- [NTSB CEN21LA173](https://openairdocs.org/ntsb/CEN21LA173.md): Robinson Helicopter R44 II · Dustin, OK · Accident · Serious injuries · Class 3 · Limited · Final report · Mar 26, 2021 · N178DF · Substantial damage
  > The pilot’s insufficient monitoring of the helicopter’s power while flying at low altitude and at low airspeed, which resulted in the loss of rotor rpm and impact with a tree and terrain.
- [NTSB CEN21LA047](https://openairdocs.org/ntsb/CEN21LA047.md): Ercoupe 415 · Ardmore, OK · Accident · Serious injuries · Class 3 · Limited · Final report · Nov 7, 2020 · N331BW · Substantial damage
  > The pilot’s improper decision to takeoff with 3 persons in a 2-place airplane and over maximum gross weight, and his failure to apply carburetor heat when the airplane’s engine experienced carburetor ice and a partial loss of power.
- [NTSB CEN20CA229](https://openairdocs.org/ntsb/CEN20CA229.md): Cessna T188 · McCurtain, OK · Accident · Serious injuries · Class 4 · Data collection · Final report · Jun 12, 2020 · N2085J · Substantial damage
  > The pilot's failure to maintain the proper airspeed during a low altitude aerial application maneuver and his exceedance of the airplane’s critical angle of attack, which resulted in an aerodymanic stall at too low of an altiutde to recover.
- [NTSB ERA19LA006](https://openairdocs.org/ntsb/ERA19LA006.md): Cessna 205 · Wagoner, OK · Accident · Minor injuries · Class 3 · Limited · Final report · Oct 4, 2018 · N8495Z · Substantial damage
  > Maintenance personnel’s improper maintenance of the magnetos, which resulted in a loss of engine power.
- [NTSB CEN18FA310](https://openairdocs.org/ntsb/CEN18FA310.md): Extra EA 400 · Ponca City, OK · Accident · 5 fatal · Class 3 · Field · Final report · Aug 4, 2018 · N13EP · Destroyed
  > The pilot's loss of control for reasons that could not be determined with the available evidence.
- [NTSB CEN18FA232](https://openairdocs.org/ntsb/CEN18FA232.md): Air Tractor AT 502B · Enid, OK · Accident · 1 fatal · Class 2 · Field · Final report · Jun 19, 2018 · N2063B · Destroyed
  > The pilot's failure to see and avoid a known obstacle (communications tower) during agricultural spraying operations.
- [NTSB CEN18FA201](https://openairdocs.org/ntsb/CEN18FA201.md): Ayres S2R · El Reno, OK · Accident · 1 fatal · Field investigation · Final report · May 30, 2018 · N2249B · Destroyed
  > The pilot's failure to maintain clearance from tower guy wires while maneuvering during an aerial application flight.
- [NTSB CEN17CA120](https://openairdocs.org/ntsb/CEN17CA120.md): Aero Commander S2R · Fairmont, OK · Accident · Serious injuries · Data collection · Final report · Mar 2, 2017 · N1755S · Substantial damage
  > The pilot’s failure to maintain clearance from a power line while conducting agricultural spray operations.
- [NTSB CEN16FA278](https://openairdocs.org/ntsb/CEN16FA278.md): Harris-Runyan Skybolt 300 · Fairmont, OK · Accident · 2 fatal · Field investigation · Final report · Jul 21, 2016 · N511GS · Substantial damage
  > The pilot's delay in recovering from an aerobatic maneuver resulting in collision with terrain.
- [NTSB CEN15LA437](https://openairdocs.org/ntsb/CEN15LA437.md): Capella Aircraft Corporation ( FW2TDXLS · Bartlesville, OK · Accident · Minor injuries · Limited investigation · Final report · Sep 30, 2015 · N903AB · Substantial damage
  > The pilot’s failure to maintain airplane control after takeoff.
- [NTSB CEN15LA238](https://openairdocs.org/ntsb/CEN15LA238.md): Piper PA-25-235 · Omega, OK · Accident · No injuries · Limited investigation · Final report · May 11, 2015 · N7279Z · Substantial damage
  > Improper base metal preparation or contamination of the No. 5 cylinder wall before it was coated, which resulted in the coating peeling off of the cylinder wall and contaminating the engine oil and the subsequent partial loss of engine power.
- [NTSB CEN15FA127](https://openairdocs.org/ntsb/CEN15FA127.md): Eagleston John H Vans RV9A · Kingston, OK · Accident · 1 fatal · Field investigation · Final report · Jan 28, 2015 · N708JE · Substantial damage
  > The pilot’s continuation of a banked turn following the loss of engine power, which resulted in his failure to maintain adequate airspeed and the airplane exceeding its critical angle of attack and entering an accelerated stall at low altitude. Contributing…
- [NTSB CEN14FA506](https://openairdocs.org/ntsb/CEN14FA506.md): Cessna 172R · Okmulgee, OK · Accident · 1 fatal · Field investigation · Final report · Sep 19, 2014 · N2435R · Substantial damage
  > The pilot's continued visual flight into instrument meteorological conditions, which resulted in his failure to maintain clearance with trees and terrain.
- [NTSB CEN14LA319](https://openairdocs.org/ntsb/CEN14LA319.md): Grumman G 164 · Anadarko, OK · Accident · Minor injuries · Limited investigation · Final report · Jun 20, 2014 · N455Y · Substantial damage
  > The total loss of engine power while climbing after takeoff for reasons that could not be determined based on the available information.
- [NTSB CEN14FA046](https://openairdocs.org/ntsb/CEN14FA046.md): Mitsubishi MU 2B-25 · Owasso, OK · Accident · 1 fatal · Field investigation · Final report · Nov 10, 2013 · N856JT · Destroyed
  > The pilot's loss of airplane control during a known one-engine-inoperative condition. The reasons for the loss of control and engine shutdown could not be determined because the airplane was not equipped with a crash-resistant recorder and postaccident…
- [NTSB CEN14FA019](https://openairdocs.org/ntsb/CEN14FA019.md): Piper PA 28-140 · Talihina, OK · Accident · 1 fatal · Field investigation · Final report · Oct 21, 2013 · N113WS · Destroyed
  > The pilot’s lack of weather planning and his continued flight into an area of known rain with reduced visibility and his subsequent failure to maintain clearance with trees.
- [NTSB CEN13TA441](https://openairdocs.org/ntsb/CEN13TA441.md): Cessna 182S · Tecumseh, OK · Accident · Serious injuries · Final report · Jul 27, 2013 · N820HP · Substantial damage
  > The pilot's inadvertent aerodynamic stall at a low altitude, which resulted in a loss of control and impact with terrain.
- [NTSB CEN13LA390](https://openairdocs.org/ntsb/CEN13LA390.md): Rockwell S-2R · Boise City, OK · Accident · No injuries · Limited investigation · Final report · Jun 12, 2013 · N2249U · Substantial damage
  > The total loss of engine power for reasons that could not be determined because postaccident examination of the engine and fuel system revealed no anomalies.
- [NTSB CEN13LA322](https://openairdocs.org/ntsb/CEN13LA322.md): Grumman Acft ENG Cor-Schweizer G-164B · Covington, OK · Accident · No injuries · Limited investigation · Final report · Jun 6, 2013 · N6754Q · Substantial damage
  > The airplane’s failure to climb after takeoff for reasons that could not be determined because postaccident examinations of the engine and airframe did not reveal any anomalies that would have precluded normal operation.
- [NTSB CEN13FA051](https://openairdocs.org/ntsb/CEN13FA051.md): Piper PA-28-140 · Anadarko, OK · Accident · 1 fatal · Field investigation · Final report · Nov 6, 2012 · N7337J · Substantial damage
  > The pilot’s use of excessive bank angle while maneuvering in the airport traffic pattern, which resulted in an accelerated stall.
- [NTSB CEN12CA533](https://openairdocs.org/ntsb/CEN12CA533.md): Thrush S-2R · Newkirk, OK · Accident · No injuries · Data collection · Final report · Aug 7, 2012 · N5596X · Substantial damage
  > The pilot’s failure to maintain clearance from power lines.
- [NTSB CEN12LA299](https://openairdocs.org/ntsb/CEN12LA299.md): Piper PA-24-250 · Shawnee, OK · Accident · No injuries · Limited investigation · Final report · May 14, 2012 · N7171P · Substantial damage
  > The improper installation of the mixture cable by maintenance personnel, which allowed the mixture cable to entangle with the landing gear during gear extension and led to the subsequent loss of engine power.
- [NTSB CEN12CA269](https://openairdocs.org/ntsb/CEN12CA269.md): Eurocopter AS 350 B2 · Hugo, OK · Accident · No injuries · Data collection · Final report · Apr 29, 2012 · N406EM · Substantial damage
  > The pilot’s inadequate collective control inputs while performing a hovering autorotation, which resulted in a hard landing. Contributing to the accident was the check airman's delayed remedial action.
- [NTSB CEN12FA101](https://openairdocs.org/ntsb/CEN12FA101.md): Piper PA-28-235D · Chickasha, OK · Accident · 2 fatal · Field investigation · Final report · Dec 10, 2011 · N999RR · Substantial damage
  > The non-instrument-rated pilot's decision to continue flight into instrument meteorological conditions, which resulted in the pilot’s spatial disorientation and loss of control of the airplane. Contributing to the accident was the pilot’s lack of instrument…
- [NTSB CEN11CA509](https://openairdocs.org/ntsb/CEN11CA509.md): Bell 206B · Temple, OK · Accident · No injuries · Data collection · Final report · Jul 23, 2011 · N118TV · Substantial damage
  > The pilot’s failure to maintain clearance from static power lines.
- [NTSB CEN11LA350](https://openairdocs.org/ntsb/CEN11LA350.md): Piper PA-22-160 · Frederick, OK · Accident · Serious injuries · Limited investigation · Final report · May 20, 2011 · N8957D · Substantial damage
  > An in-flight fire for undetermined reasons.
- [NTSB CEN11FA300](https://openairdocs.org/ntsb/CEN11FA300.md): Dahlman-Dower Tailwind W-8 · Elk City, OK · Accident · 1 fatal · Field investigation · Final report · Apr 21, 2011 · N7804C · Substantial damage
  > The pilot's decision to attempt flight into instrument meteorological conditions in an airplane that was equipped for flight in visual meteorological conditions only, which resulted in the pilot’s spatial disoriented and loss of control of the airplane.
- [NTSB CEN11LA082](https://openairdocs.org/ntsb/CEN11LA082.md): Cessna 172M · Velma, OK · Accident · 1 fatal · Limited investigation · Final report · Nov 24, 2010 · N4428Q · Destroyed
  > The pilot’s failure to maintain control of the airplane while maneuvering, which resulted in an inadvertent stall and subsequent impact with terrain. Contributing to the accident was the pilot's relative inexperience in pipeline patrols.
- [NTSB CEN11FA075](https://openairdocs.org/ntsb/CEN11FA075.md): Hawker-Beechcraft A36 · Oklahoma City, OK · Accident · 1 fatal · Field investigation · Final report · Nov 18, 2010 · N314DP · Substantial damage
  > The pilot’s loss of control of the airplane during night instrument meteorological conditions, likely due to spatial disorientation.
- [NTSB CEN10FA424](https://openairdocs.org/ntsb/CEN10FA424.md): Eurocopter AS 350 B2 · Kingfisher, OK · Accident · 2 fatal · Field investigation · Final report · Jul 23, 2010 · N918EM · Substantial damage
  > The pilot’s impaired judgment, due to medications, which led to an abrupt low-level maneuver and subsequent impact with trees and terrain.
- [NTSB CEN10FA130](https://openairdocs.org/ntsb/CEN10FA130.md): Beech C24R · Bristow, OK · Accident · 2 fatal · Field investigation · Final report · Feb 28, 2010 · N63713 · Destroyed
  > The pilot’s loss of control for undetermined reasons while maneuvering at low altitude.
- [NTSB CEN10LA043](https://openairdocs.org/ntsb/CEN10LA043.md): Moore Skybolt/BM · Altus, OK · Accident · 2 fatal · Limited investigation · Final report · Nov 8, 2009 · N6644 · Destroyed
  > The pilot's poor judgment by performing intentional low-level maneuvers that resulted in an inadvertent stall/spin at an altitude to low to affect a safe recovery.
- [NTSB CEN09FA562](https://openairdocs.org/ntsb/CEN09FA562.md): Piper PA-32R-300 · Tulsa, OK · Accident · 5 fatal · Field investigation · Final report · Sep 5, 2009 · N1228H · Destroyed
  > The non-instrument-rated pilot’s decision to attempt flight in instrument meteorological conditions, which resulted in spatial disorientation and an in-flight collision with a radio tower guy wire.
- [NTSB CEN09CA479](https://openairdocs.org/ntsb/CEN09CA479.md): Piper PA28-151 · Purcell, OK · Accident · Serious injuries · Data collection · Final report · Jul 31, 2009 · N41930 · Destroyed
  > The student pilot's failure to see and avoid the power lines.
- [NTSB CEN09CA287](https://openairdocs.org/ntsb/CEN09CA287.md): Pitts Aerobatics S-2B · Muskogee, OK · Accident · Serious injuries · Data collection · Final report · May 9, 2009 · N6027V · Substantial damage
  > Inadequate supervision by the certified flight instructor, resulting in a delayed stall recovery attempt.
- [NTSB DFW08FA237](https://openairdocs.org/ntsb/DFW08FA237.md): Cessna 320D · Collinsville, OK · Accident · 2 fatal · Field investigation · Final report · Sep 28, 2008 · N4165T · Substantial damage
  > The crews' failure to maintain adequate airspeed, which resulted in an aerodynamic stall close to the ground.
- [NTSB DEN08LA163](https://openairdocs.org/ntsb/DEN08LA163.md): Beech C23 · Duncan, OK · Accident · Minor injuries · Limited investigation · Final report · Sep 28, 2008 · N6714E · Substantial damage
  > A total loss of engine power due to the fatigue failure of the engine crankshaft. Contributing to the accident were the improper maintenance to the engine crankshaft, improper reassembly of the engine, and failure to follow the engine manufacturer's overhaul…
- [NTSB DFW08CA171](https://openairdocs.org/ntsb/DFW08CA171.md): Mooney M20 · Lake Ft Gibson, OK · Accident · Minor injuries · Data collection · Final report · Jun 29, 2008 · N1287X · Substantial damage
  > The pilot's loss of control while maneuvering the aircraft.

Next page: https://openairdocs.org/ntsb-phases/450/cases.md?state=OK&page=2

## The whole list in SQL

Runs in DuckDB 1.2 or later on the release's Parquet files over HTTPS:

```sql
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" = 'OK' AND c."eventCountry" = 'USA'
  AND c."mKey" IN (SELECT case_mkey FROM case_phases WHERE main = 450)
ORDER BY c."eventDate" DESC, c."ntsbNumber" DESC
```

This list as a web page: https://openairdocs.org/ntsb-phases/450/cases?state=OK

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