# NTSB investigations, OR: Approach

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 · 392 cases

## Latest cases

- [NTSB WPR27FA015](https://openairdocs.org/ntsb/WPR27FA015.md): Bertling Courtney MXL-2 · Newberg, OR · Accident · 1 fatal · Class 4 · Field · Investigation open · Oct 12, 2026 · N947BX · Substantial damage
- [NTSB WPR26LA049](https://openairdocs.org/ntsb/WPR26LA049.md): Zenair Stol CH 701 · Shady Cove, OR · Accident · Minor injuries · Class 4 · Limited · Final report · Nov 20, 2025 · N43AH · Substantial damage
  > The pilot’s improper throttle input during an approach, which resulted in a rapid descent, hard landing and runway excursion.
- [NTSB WPR25LA228](https://openairdocs.org/ntsb/WPR25LA228.md): Beech V35 · Astoria, OR · Accident · No injuries · Class 3 · Limited · Preliminary report · Jul 23, 2025 · N3785Q · Substantial damage
  > On July 22, 2025, about 1706 Pacific daylight time, a Beechcraft Bonanza V35, N3785Q, sustained substantial damage when it was involved in an accident near Astoria, Oregon. The pilot and passenger were not injured. The airplane was operated as a Title 14 Code…
- [NTSB WPR25LA138](https://openairdocs.org/ntsb/WPR25LA138.md): Schweizer SGS 2-33A · Hood River, OR · Accident · No injuries · Class 4 · Limited · Final report · Apr 19, 2025 · N5786S · Substantial damage
  > The glider’s encounter with atmospheric conditions where the lift was not sufficient to maintain flight.
- [NTSB WPR24FA057](https://openairdocs.org/ntsb/WPR24FA057.md): Cessna 172G · Independence, OR · Accident · 3 fatal · Class 3 · Field · Final report · Dec 17, 2023 · N3992L · Destroyed
  > The pilot’s decision to continue flight under visual flight rules into instrument meteorological conditions, which resulted in collision with an obstacle while landing.
- [NTSB WPR24LA021](https://openairdocs.org/ntsb/WPR24LA021.md): Cessna 152 · The Dalles, OR · Accident · Minor injuries · Class 4 · Limited · Final report · Oct 20, 2023 · N6308Q · Substantial damage
  > The pilot’s encounter with severe turbulence at night which resulted in an extended downwind and collision with wires during the base turn.
- [NTSB WPR23LA150](https://openairdocs.org/ntsb/WPR23LA150.md): Compagnie Daher TBM 700 · Ashland, OR · Accident · No injuries · Class 3 · Limited · Final report · Apr 7, 2023 · N6924G · Destroyed
  > The pilot’s failure to maintain adequate airspeed during an attempted go around, which resulted in a runway excursion and impact with terrain.
- [NTSB WPR22LA002](https://openairdocs.org/ntsb/WPR22LA002.md): Zenith CH750 · Oregon City, OR · Accident · Minor injuries · Class 3 · Limited · Final report · Oct 2, 2021 · N99HX · Substantial damage
  > The total loss of engine power for undetermined reasons.
- [NTSB WPR21FA233](https://openairdocs.org/ntsb/WPR21FA233.md): Piper PA-22-135 · White City, OR · Accident · 1 fatal · Class 3 · Field · Final report · Jun 20, 2021 · N2618A · Destroyed
  > The pilot’s failure to maintain control of the airplane during a go-around, which resulted in a collision with trees. Contributing to the accident was the pilot’s impairment due to his medical conditions and the effects of his medications.
- [NTSB WPR21LA204](https://openairdocs.org/ntsb/WPR21LA204.md): Mcclure B J Glasair III · Eugene, OR · Accident · Serious injuries · Class 3 · Limited · Final report · May 20, 2021 · N54CB · Destroyed
  > The pilot’s loss of airplane control during the approach to landing due to an asymmetrical flap deployment for reasons that could not be determined based on the available evidence.
- [NTSB WPR21LA179](https://openairdocs.org/ntsb/WPR21LA179.md): Piper PA-30B · Corvallis, OR · Accident · No injuries · Class 4 · Limited · Final report · Apr 29, 2021 · N125RJ · Substantial damage
  > The pilot’s failure to maintain airplane control during a simulated engine out landing which resulted in impact with terrain.
- [NTSB WPR21LA122](https://openairdocs.org/ntsb/WPR21LA122.md): Cessna 172G · Sisters, OR · Accident · Serious injuries · Class 3 · Limited · Final report · Mar 4, 2021 · N4456L · Substantial damage
  > A total loss of engine power due to fuel starvation and the pilot’s mismanagement of the available fuel.
- [NTSB WPR20LA309](https://openairdocs.org/ntsb/WPR20LA309.md): Bird CK · Enterprise, OR · Accident · No injuries · Class 4 · Limited · Final report · Sep 11, 2020 · N933V · Substantial damage
  > The pilot’s failure to maintain directional control during landing, which resulted in a runway excursion and collision with terrain.
- [NTSB WPR20LA283](https://openairdocs.org/ntsb/WPR20LA283.md): Kaman K 1200 · Pine Grove, OR · Accident · 1 fatal · Class 3 · Limited · Final report · Aug 25, 2020 · N314 · Substantial damage
  > An in-flight breakup resulting from contact of the left rotor system with the right rotor system after an in-flight failure of a servo flap from a left rotor blade.
- [NTSB WPR20CA276](https://openairdocs.org/ntsb/WPR20CA276.md): Mooney M20C · Hillsboro, OR · Accident · No injuries · Class 4 · Data collection · Final report · Aug 19, 2020 · N2933L · Substantial damage
  > The pilot’s failure to maintain altitude on short final due to an encounter with a down draft and the flight instructor's delayed remedial action.
- [NTSB WPR20LA161](https://openairdocs.org/ntsb/WPR20LA161.md): Beech 35 · Cascade Locks, OR · Accident · Minor injuries · Class 3 · Limited · Final report · May 17, 2020 · N8359D · Substantial damage
  > The pilot’s improper fuel tank selection which resulted in fuel starvation to the engine and a loss of engine power.
- [NTSB WPR19FA215](https://openairdocs.org/ntsb/WPR19FA215.md): North American T28A · Ontario, OR · Accident · 1 fatal · Class 3 · Field · Final report · Aug 9, 2019 · N9862C · Substantial damage
  > A total loss of engine power due to the improperly adjusted carburetor idle valve.
- [NTSB WPR19LA205](https://openairdocs.org/ntsb/WPR19LA205.md): Md Helicopter 369 · Eugene, OR · Accident · Serious injuries · Class 3 · Limited · Final report · Jul 28, 2019 · N438RC · Substantial damage
  > The left seat pilot’s failure to account for environmental conditions conducive to a loss of tail rotor effectiveness, which resulted in a loss of tail rotor effectiveness and subsequent loss of control.
- [NTSB WPR19LA198](https://openairdocs.org/ntsb/WPR19LA198.md): Cessna 172 · Madras, OR · Accident · Minor injuries · Class 3 · Limited · Final report · Jul 22, 2019 · N3761L · Substantial damage
  > A partial loss of power during final approach for undetermined reasons as postaccident examinations did not reveal any preimpact anomalies with the airplane or engine.
- [NTSB GAA19CA336](https://openairdocs.org/ntsb/GAA19CA336.md): Cessna 180 · Ontario, OR · Accident · Minor injuries · Data collection · Final report · Jun 10, 2019 · N3242D · Substantial damage
  > The pilot's improper preflight fuel planning, which resulted in fuel exhaustion and a subsequent total loss of engine power.
- [NTSB GAA19CA185](https://openairdocs.org/ntsb/GAA19CA185.md): Rockwell S 2R · Hermiston, OR · Accident · Minor injuries · Data collection · Final report · Mar 28, 2019 · N4250X · Substantial damage
  > The pilot's distraction due to a spray handle opening and his improper pitch trim setting during final approach, which resulted in an excessive pitchdown when he took his hand off the controls to close the handle.
- [NTSB WPR19TA085](https://openairdocs.org/ntsb/WPR19TA085.md): Piper PA46 · Aurora, OR · Accident · Serious injuries · Class 3 · Final report · Feb 6, 2019 · N997MA · Substantial damage
  > The pilot’s exceedance of the airplane’s critical angle of attack while maneuvering for landing during a simulated power-off approach and landing, which resulted in an aerodynamic stall and loss of control and the flight instructor’s failure to adequately…
- [NTSB WPR18FA218](https://openairdocs.org/ntsb/WPR18FA218.md): Mooney M20K · Baker City, OR · Accident · 2 fatal · Field investigation · Final report · Aug 11, 2018 · N231EC · Substantial damage
  > The pilot's exceedance of the airplane's critical angle of attack during the landing approach as a result of his diversion of attention after a series of non-essential aircraft systems became inoperative following the failure of the engine-driven vacuum pump,…
- [NTSB WPR18LA193](https://openairdocs.org/ntsb/WPR18LA193.md): Cessna 150 · Ontario, OR · Accident · Minor injuries · Class 3 · Limited · Final report · Jul 12, 2018 · N6908G · Destroyed
  > A total loss of engine power during final approach for reasons that could not be determined based on the available information.
- [NTSB WPR18LA148](https://openairdocs.org/ntsb/WPR18LA148.md): Cessna 152 · Hillsboro, OR · Accident · No injuries · Class 3 · Limited · Final report · May 26, 2018 · N152GB · Substantial damage
  > The partial loss of engine power during a go-around due to the loose copper electrode finger inside the left magneto.
- [NTSB OPS18IA003](https://openairdocs.org/ntsb/OPS18IA003.md): Bombardier CL600 2D24 · Medford, OR · Incident · Class 3 · Incident · Final report · Dec 25, 2017 · N162PQ · No damage
  > The incident was caused by the air traffic controller assigning an altitude below the published procedure altitude for the approach segment to be flown prior to the aircraft being established on a published portion of the approach. Contributing to the…
- [NTSB WPR18LA055](https://openairdocs.org/ntsb/WPR18LA055.md): Kelley Derrick/Leza Aircam · Newport, OR · Accident · Minor injuries · Class 3 · Limited · Final report · Dec 23, 2017 · N959M · Substantial damage
  > The pilot’s failure to maintain airplane control while on final approach for landing in crosswind conditions, which resulted in a collision with trees.
- [NTSB GAA18CA084](https://openairdocs.org/ntsb/GAA18CA084.md): Corbeil Shawn Corbeil Shawn SER VI · Rogersburg, OR · Accident · No injuries · Data collection · Final report · Dec 12, 2017 · N552EZ · Substantial damage
  > The pilot’s improper landing flare and his subsequent failure to see and avoid a tree during a go-around.
- [NTSB WPR17FA185](https://openairdocs.org/ntsb/WPR17FA185.md): Rich Wheeler Express CT · Madras, OR · Accident · 1 fatal · Field investigation · Final report · Aug 19, 2017 · N246TM · Destroyed
  > The pilot's failure to maintain adequate airspeed while maneuvering in the airport traffic pattern for landing, which resulted in an exceedance of the airplane's critical angle of attack, a subsequent aerodynamic stall at an altitude too low to recover.
- [NTSB WPR16FA154](https://openairdocs.org/ntsb/WPR16FA154.md): Sperling Richard G Lancair 360 · The Dalles, OR · Accident · 1 fatal · Field investigation · Final report · Aug 1, 2016 · N528HZ · Destroyed
  > The pilot's loss of control during an aborted landing. Contributing to the accident was the pilot's failure to extend the landing gear before touchdown.
- [NTSB WPR16LA049](https://openairdocs.org/ntsb/WPR16LA049.md): Kai Engstad RV-8A · Salem, OR · Accident · No injuries · Limited investigation · Final report · Jan 2, 2016 · N958RV · Substantial damage
  > A total loss of engine power for undetermined reasons, because postaccident examination of the engine and fuel system did not reveal any anomalies that would have precluded normal operation.
- [NTSB WPR15FA258](https://openairdocs.org/ntsb/WPR15FA258.md): Silvaire Luscombe 8A · Creswell, OR · Accident · 2 fatal · Field investigation · Final report · Sep 7, 2015 · N4948E · Destroyed
  > The pilot's decision to return to the runway shortly after takeoff, and his failure to maintain adequate airspeed during the turn, which resulted in the airplane exceeding its critical angle-of-attack and experiencing an aerodynamic stall and spin.
- [NTSB WPR15FA205](https://openairdocs.org/ntsb/WPR15FA205.md): Schweizer 269C · Newberg, OR · Accident · 2 fatal · Field investigation · Final report · Jul 2, 2015 · N2096W · Destroyed
  > The loss of translation/rotational power between the engine and the transmission due to the severe wear of the forward spline portion of the lower coupling drive shaft. The reason for the severe wear of the forward spline could not be definitively determined…
- [NTSB WPR15LA156](https://openairdocs.org/ntsb/WPR15LA156.md): Buhl LA 1 · Cottage Grove, OR · Accident · Minor injuries · Limited investigation · Final report · May 3, 2015 · N352Y · Substantial damage
  > A loss of engine power on downwind for landing due to carburetor icing, which resulted in a forced landing.
- [NTSB WPR14CA301](https://openairdocs.org/ntsb/WPR14CA301.md): Ercoupe 415 C · Hubbart, OR · Accident · Minor injuries · Data collection · Final report · Jul 19, 2014 · N99621 · Substantial damage
  > The pilot's failure to maintain aircraft control and proper alignment during approach for landing in gusting wind conditions.
- [NTSB WPR14LA059](https://openairdocs.org/ntsb/WPR14LA059.md): Cessna 210 · Florence, OR · Accident · No injuries · Limited investigation · Final report · Nov 29, 2013 · N6575X · Substantial damage
  > The failure of the hydraulic power pack, which prevented the extension of the landing gear and resulted in a partial gear-up landing.
- [NTSB WPR13FA393](https://openairdocs.org/ntsb/WPR13FA393.md): Stuart Vortex · Scappoose, OR · Accident · 1 fatal · Field investigation · Final report · Aug 31, 2013 · N43259 · Destroyed
  > The student pilot's unintentional takeoff followed by his failure to maintain control of the gyroplane during the landing approach. Contributing to the accident was the student pilot’s lack of both flight training and flight experience and his lack of a solo…
- [NTSB WPR13LA336](https://openairdocs.org/ntsb/WPR13LA336.md): Wester/Steiger Glastar · Independence, OR · Accident · No injuries · Limited investigation · Final report · Jul 22, 2013 · N130GS · Substantial damage
  > The total loss of engine power for reasons that could not be determined because postaccident examinations did not reveal any anomalies that would have precluded normal operation.
- [NTSB WPR13CA333](https://openairdocs.org/ntsb/WPR13CA333.md): Schweizer SGS 2-33A · Hood River, OR · Accident · Serious injuries · Data collection · Final report · Jul 20, 2013 · N2052T · Substantial damage
  > The glider encountered atmospheric conditions where the lift was not sufficient to maintain flight, which resulted in an off airport landing on rough terrain.
- [NTSB WPR13CA261](https://openairdocs.org/ntsb/WPR13CA261.md): Beech A23-24 · La Grande, OR · Accident · No injuries · Data collection · Final report · Jun 1, 2013 · N650VX · Substantial damage
  > The pilot’s failure to maintain airplane control and the flight instructors failure to monitor the pilot during a simulated emergency landing.
- [NTSB WPR13LA102](https://openairdocs.org/ntsb/WPR13LA102.md): Cessna 172RG · Redmond, OR · Accident · No injuries · Limited investigation · Final report · Jan 18, 2013 · N6290V · Substantial damage
  > Failure of the left main landing gear pivot assembly during the landing approach.
- [NTSB WPR12CA376](https://openairdocs.org/ntsb/WPR12CA376.md): Champion 7FC · Terrebonne, OR · Accident · Serious injuries · Data collection · Final report · Aug 30, 2012 · N4849E · Substantial damage
  > The pilot's physical impairment, which adversely affected his ability to properly operate the airplane.
- [NTSB WPR11CA397](https://openairdocs.org/ntsb/WPR11CA397.md): Cessna 170B · Jefferson, OR · Accident · Minor injuries · Data collection · Final report · Aug 19, 2011 · N2789D · Substantial damage
  > The pilot's failure to maintain clearance from power transmission lines during the landing approach into the sun.
- [NTSB WPR11FA248](https://openairdocs.org/ntsb/WPR11FA248.md): Piper PA-24-250 · Astoria, OR · Accident · 1 fatal · Field investigation · Final report · Jun 5, 2011 · N511FS · Substantial damage
  > The student pilot’s failure to maintain adequate airspeed while maneuvering for landing, which resulted in a stall/spin. Contributing to the accident were the pilot's distraction and anxiety from a reported failure of the airplane's electrical system.
- [NTSB WPR11LA068](https://openairdocs.org/ntsb/WPR11LA068.md): Taylorcraft BC-65 · Madras, OR · Accident · No injuries · Limited investigation · Final report · Dec 1, 2010 · N23619 · 2 aircraft · Minor damage
  > The failure of both pilots to see and avoid the other airplane while in the traffic pattern to land, which resulted in a midair collision.
- [NTSB WPR11LA012](https://openairdocs.org/ntsb/WPR11LA012.md): Cessna 172 · Portland, OR · Accident · No injuries · Limited investigation · Final report · Oct 11, 2010 · N738GN · Substantial damage
  > The pilot's inadequate preflight inspection and failure to ensure adequate fuel was onboard for the flight, which resulted in a total loss of engine power due to fuel exhaustion.
- [NTSB WPR10LA456](https://openairdocs.org/ntsb/WPR10LA456.md): Savage Savage-Cozy · Aurora, OR · Accident · Serious injuries · Limited investigation · Final report · Sep 12, 2010 · N9699 · Substantial damage
  > The pilot’s failure to maintain control of the airplane following a loss of engine power in the traffic pattern; the cause of the loss of engine power for reasons that could not be determined because postaccident examination of the airframe and engine did not…
- [NTSB WPR10CA401](https://openairdocs.org/ntsb/WPR10CA401.md): Cessna 180D · Hillsboro, OR · Accident · Minor injuries · Data collection · Final report · Aug 13, 2010 · N6475X · Substantial damage
  > A loss of engine power due to fuel starvation resulting from unporting when the pilot entered into a slip during the turn to the final approach leg.
- [NTSB WPR10CA334](https://openairdocs.org/ntsb/WPR10CA334.md): Luscombe 8E · Tillamook, OR · Accident · Minor injuries · Data collection · Final report · Jul 4, 2010 · N2466K · Substantial damage
  > The certified flight instructor’s selection of an inappropriate landing surface and the loss of engine power as a result of the improper use carburetor heat. Contributing to the accident was the flight instructor's inadequate supervision.
- [NTSB WPR10LA298](https://openairdocs.org/ntsb/WPR10LA298.md): Robinson Helicopter R22 Beta · Hillsboro, OR · Accident · No injuries · Limited investigation · Final report · Jun 19, 2010 · N2548S · Substantial damage
  > A partial loss of engine power while on approach for undetermined reasons.

Next page: https://openairdocs.org/ntsb-phases/500/cases.md?state=OR&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" = 'OR' AND c."eventCountry" = 'USA'
  AND c."mKey" IN (SELECT case_mkey FROM case_phases WHERE main = 500)
ORDER BY c."eventDate" DESC, c."ntsbNumber" DESC
```

This list as a web page: https://openairdocs.org/ntsb-phases/500/cases?state=OR

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