# NTSB investigations, OR: Takeoff

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 5 · 250 cases

## Latest cases

- [NTSB WPR26FA217](https://openairdocs.org/ntsb/WPR26FA217.md): Lancair 235 · Hillsboro, OR · Accident · 1 fatal · Class 3 · Field · Preliminary report · Jun 12, 2026 · N10CF · Substantial damage
  > On June 12, 2026, at about 1508 Pacific daylight time, a Lancair 235, N10CF, was destroyed when it was involved in an accident near Hillsboro, Oregon. The pilot was fatally injured. The airplane was operated as a Title 14 Code of Federal Regulations Part 91…
- [NTSB WPR26LA133](https://openairdocs.org/ntsb/WPR26LA133.md): Piper PA-12 · West Linn, OR · Accident · No injuries · Class 3 · Limited · Preliminary report · Mar 19, 2026 · N7632H · Substantial damage
  > On March 18, 2026, about 1700 Pacific daylight time, a Piper PA-12, N7632H, was substantially damaged when it was involved in an accident near West Linn, Oregon. The pilot was not injured. The airplane was operated as a Title 14 Code of Federal Regulations…
- [NTSB WPR26LA018](https://openairdocs.org/ntsb/WPR26LA018.md): Cessna 180 · Imnaha, OR · Accident · Minor injuries · Class 4 · Limited · Final report · Oct 9, 2025 · N249MD · Substantial damage
  > The pilot’s continued application of brakes during an aborted takeoff in a tailwind on down-sloping terrain, which resulted in a nose-over.
- [NTSB WPR24LA228](https://openairdocs.org/ntsb/WPR24LA228.md): Vans RV-12IS · Scappoose, OR · Accident · Serious injuries · Class 3 · Limited · Final report · Jul 2, 2024 · N725FA · Substantial damage
  > The pilot’s failure to remove the seat belt used as a flight control lock from the right control stick before takeoff, which resulted in a loss of control, an aerodynamic stall, and a collision with terrain during takeoff. Contributing to the accident was the…
- [NTSB ANC24LA022](https://openairdocs.org/ntsb/ANC24LA022.md): Cory Green Kitfox Series 7 STI · Hermiston, OR · Accident · No injuries · Class 4 · Limited · Final report · Mar 31, 2024 · N188CG · Substantial damage
  > The pilot’s failure to maintain directional control during takeoff, which resulted in a nose over. Contributing to the accident was the flight instructor’s delayed remedial action.
- [NTSB WPR23LA243](https://openairdocs.org/ntsb/WPR23LA243.md): Kitfox 2 · Cave Junction, OR · Accident · No injuries · Class 3 · Limited · Final report · Jun 24, 2023 · N729U · Substantial damage
  > The pilot’s failure to maintain proper airspeed and his exceedance of the airplane’s critical angle of attack during takeoff, which resulted in an aerodynamic stall.
- [NTSB WPR23LA168](https://openairdocs.org/ntsb/WPR23LA168.md): Cessna 140 · Nyssa, OR · Accident · Minor injuries · Class 4 · Limited · Final report · Apr 26, 2023 · N140D · Substantial damage
  > The pilot’s failure to maintain adequate airspeed on takeoff that resulted in an aerodynamic stall and subsequent impact with trees.
- [NTSB WPR22LA330](https://openairdocs.org/ntsb/WPR22LA330.md): Sikorsky S-61N · Shady Cove, OR · Accident · Minor injuries · Class 3 · Limited · Final report · Sep 1, 2022 · N617CK · Substantial damage
  > A total loss of engine power due to the failure of the No. 2 engine’s stage 1 turbine blades as a result of an unreported hot start two days earlier.
- [NTSB WPR22LA209](https://openairdocs.org/ntsb/WPR22LA209.md): Cessna A185F · Sunriver, OR · Accident · No injuries · Class 4 · Limited · Final report · Jun 9, 2022 · N94078 · Substantial damage
  > The pilot's failure to maintain control of the airplane during takeoff, which resulted in a collision with terrain.
- [NTSB WPR22LA177](https://openairdocs.org/ntsb/WPR22LA177.md): Piper PA-12 · Enterprise, OR · Accident · No injuries · Class 3 · Limited · Final report · May 14, 2022 · N3960M · Substantial damage
  > The inadequate maintenance and inspection of the crankshaft expansion plug, which resulted in the separation of the expansion plug from the crankshaft and the subsequent loss of oil and windshield obstruction during departure.
- [NTSB WPR22LA112](https://openairdocs.org/ntsb/WPR22LA112.md): Gregory S Miller GM CUB · Monument, OR · Accident · Minor injuries · Class 4 · Limited · Final report · Feb 26, 2022 · N9013F · Substantial damage
  > The failure of the pilot to maintain directional control during takeoff, which resulted in an impact with a tree.
- [NTSB WPR22LA074](https://openairdocs.org/ntsb/WPR22LA074.md): American Champion 8GCBC · Jordan Valley, OR · Accident · No injuries · Class 4 · Limited · Final report · Jan 1, 2022 · N58BH · Substantial damage
  > The pilot’s decision to takeoff on remote snow covered terrain which, resulted in a nose-over.
- [NTSB WPR22FA055](https://openairdocs.org/ntsb/WPR22FA055.md): Piper PA-31-350 · Medford, OR · Accident · 2 fatal · Class 3 · Field · Final report · Dec 6, 2021 · N64BR · Destroyed
  > The pilot’s failure to maintain aircraft control during the initial climb into clouds due to spatial disorientation, which resulted in an uncontrolled descent and collision with terrain.
- [NTSB WPR22LA034](https://openairdocs.org/ntsb/WPR22LA034.md): Bell OH-58A · Molalla, OR · Accident · No injuries · Class 3 · Limited · Final report · Nov 15, 2021 · N103WC · Substantial damage
  > The loss of engine power for undetermined reasons.
- [NTSB WPR22LA009](https://openairdocs.org/ntsb/WPR22LA009.md): Piper PA-28-140 · Albany, OR · Accident · No injuries · Class 4 · Limited · Final report · Oct 7, 2021 · N98241 · Substantial damage
  > The pilot's failure to maintain directional control during takeoff.
- [NTSB WPR22LA003](https://openairdocs.org/ntsb/WPR22LA003.md): Interstate S-1A · Independence, OR · Accident · No injuries · Class 4 · Limited · Final report · Oct 2, 2021 · N37317 · Substantial damage
  > The separation of the left rudder pedal interconnect cable during takeoff, which resulted in the student pilot’s inability to maintain directional control.
- [NTSB WPR21LA306](https://openairdocs.org/ntsb/WPR21LA306.md): Piper J3C-85 · Woodburn, OR · Accident · Serious injuries · Class 4 · Limited · Final report · Aug 5, 2021 · N6018H · No damage
  > The pilot’s failure to maintain clearance during takeoff from a person on the ground who sustained a serious injury as a result of the collision.
- [NTSB WPR21LA252](https://openairdocs.org/ntsb/WPR21LA252.md): SilverLight AR-1 · Lakeside, OR · Accident · No injuries · Class 4 · Limited · Final report · Jun 29, 2021 · N159WT · Substantial damage
  > The pilot’s inadequate decision to continue the takeoff after sufficient airspeed was not attained and his failure to maintain aircraft control while maneuvering to avoid obstructions, which resulted in a collision with the ground.
- [NTSB WPR21LA195](https://openairdocs.org/ntsb/WPR21LA195.md): Gulfstream American AA-5B · Hillsboro, OR · Accident · No injuries · Class 4 · Limited · Final report · May 12, 2021 · N51LL · Substantial damage
  > The pilot’s delayed remediation following an aborted takeoff run, which resulted in a runway overrun and collision with trees.
- [NTSB WPR21LA162](https://openairdocs.org/ntsb/WPR21LA162.md): Thrush S2R-T660 · Hermiston, OR · Accident · No injuries · Class 4 · Limited · Final report · Apr 17, 2021 · N51080 · Substantial damage
  > The pilot’s loss of directional control due to a blown tire, which resulted in a runway excursion and impact with terrain.
- [NTSB WPR20LA324](https://openairdocs.org/ntsb/WPR20LA324.md): Pilatus PC-12/47E · Lake Abert, OR · Accident · No injuries · Class 4 · Limited · Final report · Sep 15, 2020 · N1220A · Substantial damage
  > The pilot’s failure to maintain clearance from an object during the takeoff ground roll due to inadequate monitoring of the environment.
- [NTSB WPR20LA201](https://openairdocs.org/ntsb/WPR20LA201.md): Avia Stroitel AC-5M · Bend, OR · Accident · 1 fatal · Class 3 · Limited · Final report · Jun 30, 2020 · N263R · Destroyed
  > A loss of control just after takeoff for reasons that could not be determined based on the available information.
- [NTSB WPR20LA119](https://openairdocs.org/ntsb/WPR20LA119.md): Robinson R44 · Hillsboro, OR · Accident · No injuries · Class 3 · Limited · Final report · Apr 6, 2020 · N725GT · Substantial damage
  > The total loss of engine power during takeoff due to the delamination of the fuel servo induction air inlet duct tube.
- [NTSB WPR20LA111](https://openairdocs.org/ntsb/WPR20LA111.md): Piper PA 30 · Eagle Creek, OR · Accident · Serious injuries · Class 3 · Limited · Final report · Mar 19, 2020 · N7155Y · Destroyed
  > The pilot's loss of airplane control during takeoff due to his left shoe’s interference with the rudder pedal.
- [NTSB GAA20CA053](https://openairdocs.org/ntsb/GAA20CA053.md): Zenair CH701 · Salem, OR · Accident · No injuries · Data collection · Final report · Nov 1, 2019 · N102PH · Substantial damage
  > The pilot's failure to maintain lateral control during takeoff, which resulted in impact with terrain. Contributing to the accident was the pilot’s improper decision to make his first flight in an airplane he unfamiliar with before waiting for calm winds.
- [NTSB WPR19FA251](https://openairdocs.org/ntsb/WPR19FA251.md): Piper PA18 · Hood River, OR · Accident · 2 fatal · Class 3 · Field · Final report · Sep 6, 2019 · N14365 · Substantial damage
  > The total loss of engine power shortly after takeoff as a result of the private pilot’s failure to ensure the fuel selector was in the appropriate position and the certified flight instructor’s exceedance of the airplane’s critical angle of attack at the time…
- [NTSB WPR19FA244](https://openairdocs.org/ntsb/WPR19FA244.md): Cessna 172 · McKenzie Bridge, OR · Accident · 2 fatal · Class 3 · Field · Final report · Aug 28, 2019 · N4108F · Destroyed
  > The pilot's delayed climb and misjudgment of the airplane’s performance and the runway distance needed to clear obstacles at the end of the runway, which resulted in a collision with trees and subsequent impact with terrain. Contributing to the accident was…
- [NTSB WPR19LA237](https://openairdocs.org/ntsb/WPR19LA237.md): Cessna T210 · Eugene, OR · Accident · No injuries · Class 3 · Limited · Final report · Aug 20, 2019 · N501SF · Substantial damage
  > The failure of the landing gear electric motor to shut off after landing gear retraction, which resulted in the motor overheating, burning out, and producing smoke in the cockpit. The pilot’s decision to land with the landing gear retracted resulted in…
- [NTSB WPR19LA196](https://openairdocs.org/ntsb/WPR19LA196.md): Cessna 210 5(205) · Dallesport, OR · Accident · No injuries · Class 3 · Limited · Final report · Jul 19, 2019 · N8260Z · Destroyed
  > The pilot’s improper pitch control during the aborted takeoff, which resulted in a bounced landing and landing gear collapse.
- [NTSB GAA19CA450](https://openairdocs.org/ntsb/GAA19CA450.md): Rockwell 112A · Cove, OR · Accident · No injuries · Data collection · Final report · Jul 19, 2019 · N1330J · Substantial damage
  > The pilot's delayed decision to abort the takeoff from a grass runway, which resulted in a runway overrun and subsequent impact with a pole.
- [NTSB WPR19LA191](https://openairdocs.org/ntsb/WPR19LA191.md): Bolkow Phoebus · Alvord Desert, OR · Accident · 1 fatal · Class 3 · Limited · Final report · Jul 17, 2019 · N112AJ · Destroyed
  > Pilot’s failure to properly respond to a slack towline during takeoff, which resulted in a loss of control of the glider.
- [NTSB WPR19LA207](https://openairdocs.org/ntsb/WPR19LA207.md): Stinson 108 · Klamath Falls, OR · Accident · No injuries · Class 3 · Limited · Final report · Jul 9, 2019 · N6642M · Substantial damage
  > The mechanic’s failure to identify an engine performance issue, which led to a partial loss of engine power. Contributing to the accident was the pilot’s decision to operate the airplane with a known mechanical deficiency.
- [NTSB GAA19CA369](https://openairdocs.org/ntsb/GAA19CA369.md): Piper L21 · Imnaha, OR · Accident · No injuries · Data collection · Final report · Jun 21, 2019 · N753AT · Substantial damage
  > The pilot's failure to maintain directional control while taking off from a soft, rough field, which resulted in a ground-loop.
- [NTSB WPR19LA130](https://openairdocs.org/ntsb/WPR19LA130.md): Cessna 170 · Prineville, OR · Accident · No injuries · Class 3 · Limited · Final report · Apr 22, 2019 · N4567C · Substantial damage
  > The pilot’s failure to maintain directional control during takeoff with a crosswind.
- [NTSB GAA18CA236](https://openairdocs.org/ntsb/GAA18CA236.md): L-Bird CCX-2000 · Hood River, OR · Accident · No injuries · Data collection · Final report · Apr 27, 2018 · N844FC · Substantial damage
  > The pilot’s decision to take off in gusting wind conditions, which resulted in a loss of directional control.
- [NTSB GAA17CA424](https://openairdocs.org/ntsb/GAA17CA424.md): Salerno Kenneth G JR Kitfox Series 7 · Owyhee, OR · Accident · Minor injuries · Data collection · Final report · Jul 18, 2017 · N702KF · Substantial damage
  > The pilot's failure to maintain directional control during takeoff from a rough, dirt airstrip.
- [NTSB GAA17CA358](https://openairdocs.org/ntsb/GAA17CA358.md): Vans RV-12 · Eugene, OR · Accident · No injuries · Data collection · Final report · Jun 20, 2017 · N234VA · Substantial damage
  > The student pilot’s failure to maintain directional control during takeoff.
- [NTSB GAA17CA359](https://openairdocs.org/ntsb/GAA17CA359.md): Cessna A188 · Salem, OR · Accident · No injuries · Data collection · Final report · Jun 14, 2017 · N4877Q · Substantial damage
  > The pilot’s failure to maintain directional control during the takeoff roll, which resulted in the airplane contacting tall grass.
- [NTSB WPR17LA116](https://openairdocs.org/ntsb/WPR17LA116.md): Extra Flugzeugbau EA 300/S · Pendelton, OR · Accident · No injuries · Limited investigation · Final report · May 20, 2017 · N68PW · Substantial damage
  > The pilot’s failure to follow checklists to ensure the canopy was secured before takeoff.
- [NTSB GAA17CA302](https://openairdocs.org/ntsb/GAA17CA302.md): Cessna 175 · Prospect, OR · Accident · No injuries · Data collection · Final report · May 20, 2017 · N175DH · Substantial damage
  > The flight instructor’s failure to attain an adequate climb rate during takeoff, which resulted in impact with trees.
- [NTSB GAA17CA110](https://openairdocs.org/ntsb/GAA17CA110.md): Christen Industries A 1 · Milton-Freewater, OR · Accident · No injuries · Data collection · Final report · Jan 10, 2017 · N9598Z · Substantial damage
  > The pilot's decision to take off from unsuitable terrain with a tailwind, which resulted in a nose-over.
- [NTSB GAA15CA262](https://openairdocs.org/ntsb/GAA15CA262.md): Aero Commander 500 B · The Dalles, OR · Accident · No injuries · Data collection · Final report · Aug 19, 2015 · N1010F · Substantial damage
  > A motor vehicle's runway incursion causing the premature rotation of the departing airplane, which resulted in a tail strike.
- [NTSB GAA15CA135](https://openairdocs.org/ntsb/GAA15CA135.md): WSK PZL Mielec M 18A · Nyssa, OR · Accident · No injuries · Data collection · Final report · Jun 23, 2015 · N2159C · Substantial damage
  > The pilot's failure to maintain directional control during takeoff, resulting in a runway excursion and collision with terrain.
- [NTSB WPR15LA192](https://openairdocs.org/ntsb/WPR15LA192.md): Roberts Super Bear · La Grande, OR · Accident · Minor injuries · Limited investigation · Final report · Jun 20, 2015 · N92MJ · Substantial damage
  > A 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 WPR15CA097](https://openairdocs.org/ntsb/WPR15CA097.md): Schneider Richard J Alaskan Bushmaster · Newburg, OR · Accident · No injuries · Data collection · Final report · Jan 29, 2015 · N36NC · Substantial damage
  > The pilot's failure to maintain directional control during the takeoff roll into sunlight, which restricted his visibility.
- [NTSB WPR14CA291](https://openairdocs.org/ntsb/WPR14CA291.md): Delconte Emidio J Kitfox Series V · Cove, OR · Accident · Minor injuries · Data collection · Final report · Jul 8, 2014 · N68KF · Substantial damage
  > The pilot's failure to maintain directional control during takeoff when the airplane encountered standing water on the airstrip.
- [NTSB WPR14CA166](https://openairdocs.org/ntsb/WPR14CA166.md): Piper PA 18-135 · Kent, OR · Accident · Serious injuries · Data collection · Final report · Apr 12, 2014 · N1394Y · Substantial damage
  > The pilot's failure to maintain aircraft control during takeoff.
- [NTSB WPR13LA154](https://openairdocs.org/ntsb/WPR13LA154.md): Piper PA-23-250 · Hillsboro, OR · Accident · No injuries · Limited investigation · Final report · Mar 18, 2013 · N318CA · Substantial damage
  > A runway overrun due to an insufficient stopping distance due to the downsloping runway during a rejected takeoff. Contributing to the accident was a cabin door that inadvertently opened during the takeoff roll.
- [NTSB WPR12CA431](https://openairdocs.org/ntsb/WPR12CA431.md): Robinson Helicopter R44 II · McMinnville, OR · Accident · Minor injuries · Data collection · Final report · Sep 20, 2012 · N74744 · Substantial damage
  > The pilot's aggressive takeoff maneuver, which resulted in a loss of control.
- [NTSB WPR12CA368](https://openairdocs.org/ntsb/WPR12CA368.md): Piper PA-28-140 · McMinnville, OR · Accident · No injuries · Data collection · Final report · Aug 21, 2012 · N8154N · Substantial damage
  > The pilot’s loss of directional control during the takeoff roll, which resulted in a runway excursion.

Next page: https://openairdocs.org/ntsb-phases/300/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 = 300)
ORDER BY c."eventDate" DESC, c."ntsbNumber" DESC
```

This list as a web page: https://openairdocs.org/ntsb-phases/300/cases?state=OR

---
OpenAirDocs.org is an independent research project of [Contrail Labs](https://contraillabs.com/). It is not affiliated with the FAA or the NTSB. Source documents are U.S. government works in the public domain.
