# NTSB investigations, 2009: 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 4 · 190 cases

## Latest cases

- [NTSB ERA10WA106](https://openairdocs.org/ntsb/ERA10WA106.md): Hughes 369 · Pitalito, Colombia · Accident · 1 fatal · Foreign investigation · Dec 29, 2009 · HK4177 · Substantial damage
  > On December 29, 2009, about 1655 universal coordinated time (1155 local time), a Hughes 369D, Colombian registration HK4177, operated by Sociedad Aerea de Ibague, was substantially damaged during a forced landing in Pitalito, Huila, Colombia. The Colombian…
- [NTSB WPR10LA087](https://openairdocs.org/ntsb/WPR10LA087.md): Cessna 172F · Corona, CA · Accident · Minor injuries · Limited investigation · Final report · Dec 17, 2009 · N8520U · Substantial damage
  > A loss of engine power for undetermined reasons.
- [NTSB WPR10LA082](https://openairdocs.org/ntsb/WPR10LA082.md): EADS Socata TBM 700 · Truckee, CA · Accident · Minor injuries · Limited investigation · Final report · Dec 14, 2009 · N850MT · Substantial damage
  > The pilot’s failure to maintain an adequate airspeed and clearance from terrain during an attempted go-around. Contributing to the accident was the pilot's decision to land on a partially obscured runway.
- [NTSB CEN10FA071](https://openairdocs.org/ntsb/CEN10FA071.md): Cessna 310R · Alva, OK · Accident · 1 fatal · Field investigation · Final report · Dec 13, 2009 · N310CR · Substantial damage
  > The pilot's impairment due to medication use, a migraine headache, or both, and his decision to continue the approach below minimums without the proper visual references, resulting in the subsequent collision with terrain. Contributing to the accident was the…
- [NTSB ERA10WA096](https://openairdocs.org/ntsb/ERA10WA096.md): Huber Hartmut Express · Berry Island, Bahamas · Accident · 1 fatal · Foreign investigation · Dec 12, 2009 · N93HE · Substantial damage
  > On December 12, 2009, at 1300 UTC, an experimental, amateur-built Harmut Huber Express, N93HE, operated by a private individual, crashed into the water on short final approach to Chub Cay Airport (MYBC), Berry Island, Bahamas. The pilot was killed and the…
- [NTSB CEN10FA070](https://openairdocs.org/ntsb/CEN10FA070.md): Piper PA-30 · Port Mansfield, TX · Accident · 2 fatal · Field investigation · Final report · Dec 11, 2009 · N7781Y · Destroyed
  > The pilot’s failure to maintain clearance with the water while on approach (VFR) to land.
- [NTSB CEN10CA075](https://openairdocs.org/ntsb/CEN10CA075.md): Cessna 172 · Pearland, TX · Accident · No injuries · Data collection · Final report · Dec 11, 2009 · N172BJ · Substantial damage
  > The student pilot's failure to control the airplane's descent rate during the short-field landing, resulting in a hard landing. Contributing to the accident was the flight examiner's delayed response.
- [NTSB ERA10IA095](https://openairdocs.org/ntsb/ERA10IA095.md): Beech 58 · Lexington, KY · Incident · No injuries · Incident investigation · Final report · Dec 10, 2009 · N391MC · Minor damage
  > The overstress failure of the nose landing gear aft drag brace.
- [NTSB CEN10WA073](https://openairdocs.org/ntsb/CEN10WA073.md): Cirrus SR20 · Oberbarnim, Germany · Accident · 1 fatal · Class 5 · Foreign · Dec 10, 2009 · D-EYAT · Destroyed
  > On December 10, 2009, at 1625 coordinated universal time, a Cirrus SR20, German registered D-EYAT, was destroyed when it impacted forested terrain near Oberbarnim, Germany. Instrument meteorological conditions prevailed at the time of the accident. The pilot…
- [NTSB CEN10FA069](https://openairdocs.org/ntsb/CEN10FA069.md): Beech A36 · Eagle Pass, TX · Accident · 1 fatal · Field investigation · Final report · Dec 9, 2009 · N1105N · Destroyed
  > The pilot's decision to continue the approach below minimums without visual references, and subsequent collision with the perimeter fence/terrain.
- [NTSB CEN10FA065](https://openairdocs.org/ntsb/CEN10FA065.md): New Piper PA-46-500TP · Mendoza, TX · Accident · 2 fatal · Field investigation · Final report · Dec 7, 2009 · N600YE · Substantial damage
  > ***This report was modified on May 22, 2014. Please see the docket for this accident to view the original report.*** The pilot's spatial disorientation, which resulted in his loss of airplane control. Contributing to the pilot's spatial disorientation was the…
- [NTSB ERA10LA082](https://openairdocs.org/ntsb/ERA10LA082.md): Piper PA-32RT-300 · Memphis, TN · Accident · 1 fatal · Limited investigation · Final report · Nov 29, 2009 · N9243C · Substantial damage
  > The pilot's failure to execute a timely missed approach and subsequent failure to maintain aircraft control, after he was unable to establish the airplane on the instrument approach. Contributing to the accident was the pilot's possible impairment due to his…
- [NTSB WPR10FA068](https://openairdocs.org/ntsb/WPR10FA068.md): Schleicher ASW-27 · Middletown, CA · Accident · 2 fatal · Field investigation · Final report · Nov 28, 2009 · N127AL · 2 aircraft · Substantial damage
  > The failure of both pilots to see and avoid the other airplane. Contributing to the accident was the pilot's failure to yield right of way to the glider.
- [NTSB WPR10CA066](https://openairdocs.org/ntsb/WPR10CA066.md): Nephew Alan H Kitfox · Agua Caliente Springs, CA · Accident · Minor injuries · Data collection · Final report · Nov 27, 2009 · N7824L · Substantial damage
  > The pilot's failure to maintain an adequate glide path that ensured obstacle clearance during final approach to land.
- [NTSB ERA10CA071](https://openairdocs.org/ntsb/ERA10CA071.md): Cirrus SR-22 · Everglades City, FL · Accident · No injuries · Data collection · Final report · Nov 21, 2009 · N609SR · Substantial damage
  > The pilot's failure to maintain directional control during the attempted go-around.
- [NTSB ERA10CA087](https://openairdocs.org/ntsb/ERA10CA087.md): Costruzioni Aeronautiche Tecna P2004 Bravo · Ashland, VA · Accident · Minor injuries · Data collection · Final report · Nov 20, 2009 · N319UA · Substantial damage
  > The pilot’s failure to maintain adequate clearance from trees during the landing approach.
- [NTSB CEN10LA054](https://openairdocs.org/ntsb/CEN10LA054.md): Piper PA-28-181 · Mineola, TX · Accident · Serious injuries · Limited investigation · Final report · Nov 19, 2009 · N3148Q · Substantial damage
  > A loss of engine power due to fuel exhaustion and the pilot's inadequate preflight planning.
- [NTSB WPR10LA053](https://openairdocs.org/ntsb/WPR10LA053.md): Beech 35-B33 · Chico, CA · Accident · Minor injuries · Limited investigation · Final report · Nov 11, 2009 · N9617Y · Substantial damage
  > A loss of engine power during final approach for undetermined reasons.
- [NTSB ERA10LA056](https://openairdocs.org/ntsb/ERA10LA056.md): Hawker Beechcraft B200 · Greer, SC · Accident · Serious injuries · Limited investigation · Final report · Nov 9, 2009 · N337MT · Substantial damage
  > A loss of engine power due to fuel exhaustion as a result of the pilot’s failure to visually verify that sufficient fuel was onboard prior to flight.
- [NTSB DCA10RA031](https://openairdocs.org/ntsb/DCA10RA031.md): Beech 1900 - D · Nairobi, Kenya · Accident · No injuries · Foreign investigation · Nov 9, 2009 · 5Y-VVQ · Destroyed
  > On November 9, 2009 about 0517 UTC, Kenyan registry 5Y-VVQ, a Beech 1900D, a chartered cargo flight, had a loss of control and collided with the ground during a visual approach for landing at Wilson Airport, Nairobi, Kenya. The airplane had turned back to…
- [NTSB ERA10LA059](https://openairdocs.org/ntsb/ERA10LA059.md): Cessna A188B · Ripley, MS · Accident · No injuries · Limited investigation · Final report · Nov 8, 2009 · N9368G · Substantial damage
  > The pilot’s failure to maintain adequate airspeed on final approach, which resulted in an aerodynamic stall. Contributing to the accident was a partial loss of engine power due to water in the fuel.
- [NTSB CEN10LA049](https://openairdocs.org/ntsb/CEN10LA049.md): Lockwood AIR-CAM · Mount Victory, OH · Accident · 1 fatal · Limited investigation · Final report · Nov 7, 2009 · N32786 · Substantial damage
  > The pilot's failure to maintain adequate airspeed, resulting in an aerodynamic stall and spin. Contributing to the accident was the pilot's unfamiliarity with the airplane subsequent to float installation.
- [NTSB CEN10IA173](https://openairdocs.org/ntsb/CEN10IA173.md): Univar 415-C/D · Xenia, OH · Incident · No injuries · Incident investigation · Final report · Nov 6, 2009 · N93415 · Minor damage
  > The pilot's failure to maintain the proper glide slope during final approach, which resulted in an in-flight collision with a tree.
- [NTSB WPR10LA046](https://openairdocs.org/ntsb/WPR10LA046.md): Eurocopter AS350BA · Globe, AZ · Accident · Serious injuries · Limited investigation · Final report · Nov 5, 2009 · N617LH · Substantial damage
  > The pilot receiving instruction’s failure to maintain adequate airspeed or control of the helicopter during a simulated hydraulic failure maneuver, which resulted in a hard landing. Contributing to the accident was the flight instructor’s delayed remedial…
- [NTSB ERA10FA048](https://openairdocs.org/ntsb/ERA10FA048.md): Cessna 172S · Tallahassee, FL · Accident · 2 fatal · Field investigation · Final report · Nov 5, 2009 · N5194X · Destroyed
  > The pilots' spatial disorientation during flight in dark conditions, which resulted in an uncontrolled descent into terrain.
- [NTSB WPR10CA049](https://openairdocs.org/ntsb/WPR10CA049.md): Piper PA-18-150 · Lewiston, ID · Accident · No injuries · Data collection · Final report · Nov 1, 2009 · N82213 · Substantial damage
  > The pilot's delayed decision to execute a go-around in gusting winds and with up-sloping terrain.
- [NTSB CEN10LA047](https://openairdocs.org/ntsb/CEN10LA047.md): Cessna T182T · Loveland, CO · Accident · No injuries · Limited investigation · Final report · Nov 1, 2009 · N652CP · Substantial damage
  > The pilot's failure to attain the proper touchdown point during dusk light conditions, and his failure to execute a go-around.
- [NTSB ERA10WA035](https://openairdocs.org/ntsb/ERA10WA035.md): Hawker BAe-125-800B · Minsk, Belarus · Accident · 5 fatal · Foreign investigation · Oct 26, 2009 · RA-02807 · Destroyed
  > On October 26, 2009, at 1934 universal coordinated time (2134 local standard time), a Hawker-Beech BAe-125-800, Russian registration RA-02807, operated by S-Air, was destroyed when it impacted forested terrain during a go-around attempt at Minsk-2…
- [NTSB ERA10FA029](https://openairdocs.org/ntsb/ERA10FA029.md): Cessna 172P · Bennington, VT · Accident · 1 fatal · Field investigation · Final report · Oct 25, 2009 · N55479 · Substantial damage
  > The pilot’s failure to maintain clearance from terrain during a night approach. Contributing to the accident was the pilot’s non-standard traffic pattern over higher terrain.
- [NTSB WPR10CA084](https://openairdocs.org/ntsb/WPR10CA084.md): Golden Circle Tierra I · Jensen, UT · Accident · No injuries · Data collection · Final report · Oct 24, 2009 · N440KC · Substantial damage
  > A loss of engine power, as reported by the pilot, for undetermined reasons.
- [NTSB CEN10FA027](https://openairdocs.org/ntsb/CEN10FA027.md): Commander 114-B · Adrian, MI · Accident · 2 fatal · Field investigation · Final report · Oct 23, 2009 · N6025U · Substantial damage
  > The pilot did not maintain control of the airplane due to spatial disorientation while on an instrument approach in instrument meteorological conditions.
- [NTSB WPR10LA034](https://openairdocs.org/ntsb/WPR10LA034.md): Aero Commander 690 · Cedar City, UT · Accident · No injuries · Limited investigation · Final report · Oct 21, 2009 · N690TR · Substantial damage
  > The failure of the landing gear accumulator/regulator and the installation of the improper priority valve, which precluded the landing gear from extending and locking into place.
- [NTSB CEN10FA021](https://openairdocs.org/ntsb/CEN10FA021.md): Cessna P210N · Rifle, CO · Accident · Minor injuries · Field investigation · Final report · Oct 18, 2009 · N7217S · Substantial damage
  > The pilot’s failure to properly identify the power lever and, instead, manipulating the propeller condition lever.
- [NTSB CEN10CA018](https://openairdocs.org/ntsb/CEN10CA018.md): Cessna T206H · Johnson City, KS · Accident · Minor injuries · Data collection · Final report · Oct 16, 2009 · N454TG · Substantial damage
  > The pilot's delayed action in applying full power during a go-around after flying into a fog bank.
- [NTSB WPR10CA015](https://openairdocs.org/ntsb/WPR10CA015.md): Let Blanik L-13 · Llano, CA · Accident · Serious injuries · Data collection · Final report · Oct 11, 2009 · N948LC · Substantial damage
  > The student pilot's improper use of the airbrakes while on approach for landing.
- [NTSB ERA10GA015](https://openairdocs.org/ntsb/ERA10GA015.md): Bell OH-58A · Ocala, FL · Accident · No injuries · Final report · Oct 11, 2009 · N911AF · Substantial damage
  > The excessive wear and failure of engine governor components for undetermined reasons, which resulted in a loss of engine power.
- [NTSB WPR10CA026](https://openairdocs.org/ntsb/WPR10CA026.md): Cessna 180A · Condon, OR · Accident · No injuries · Data collection · Final report · Oct 10, 2009 · N9586B · Substantial damage
  > The pilot's failure to maintain clearance from the fence post on approach.
- [NTSB ANC10CA002](https://openairdocs.org/ntsb/ANC10CA002.md): Piper PA-31-350 · Nondalton, AK · Accident · No injuries · Data collection · Final report · Oct 10, 2009 · N27231 · Substantial damage
  > The pilot's decision to attempt a landing in weather conducive to strong downdrafts, resulting in a loss of control.
- [NTSB ERA10CA008](https://openairdocs.org/ntsb/ERA10CA008.md): Cessna 172S · Easton, PA · Accident · No injuries · Data collection · Final report · Oct 6, 2009 · N66087 · Substantial damage
  > The pilot’s failure to maintain adequate clearance from terrain while on short final.
- [NTSB WPR10LA006](https://openairdocs.org/ntsb/WPR10LA006.md): Turpen RV-8 · Yankton, OR · Accident · Serious injuries · Limited investigation · Final report · Oct 5, 2009 · N61FS · Substantial damage
  > The pilot's inadequate planning during an instrument approach and failure to maintain the published minimum altitudes, which resulted in controlled flight into terrain.
- [NTSB ERA10LA005](https://openairdocs.org/ntsb/ERA10LA005.md): Cessna 210 · Louisville, KY · Accident · No injuries · Limited investigation · Final report · Oct 4, 2009 · N9443T · Substantial damage
  > A malfunction of the landing gear extension system due to a fractured hydraulic line. Contributing to the accident was the inadequate inspection and maintenance of the hydraulic line.
- [NTSB WPR09CA469](https://openairdocs.org/ntsb/WPR09CA469.md): Cessna 182 · Parowan, UT · Accident · No injuries · Data collection · Final report · Sep 26, 2009 · N1040D · Substantial damage
  > The pilot's improper flare and recovery from a bounced landing.
- [NTSB ERA09WA546](https://openairdocs.org/ntsb/ERA09WA546.md): Piper PA18 · Barbones, Ecuador, Ecuador · Accident · 2 fatal · Foreign investigation · Sep 25, 2009 · HC-AHD · Destroyed
  > On September 25, 2009, about 1330 central standard time, a Piper PA-18-150, Ecuadorian registration HC-AHD, registered to and operated by FumiPalma S.A., crashed following a loss of engine power, while on an approach for landing at the Pista Bardones, El Oro,…
- [NTSB ERA09LA536](https://openairdocs.org/ntsb/ERA09LA536.md): Duke Paul Challenger II · Lumberton, MS · Accident · 1 fatal · Limited investigation · Final report · Sep 24, 2009 · N4340D · Substantial damage
  > The non-certificated pilot’s failure to maintain clearance from trees during a go-around procedure for unknown reasons.
- [NTSB CEN09FA601](https://openairdocs.org/ntsb/CEN09FA601.md): Cessna T210 · Hilltop Lakes, TX · Accident · 1 fatal · Field investigation · Final report · Sep 24, 2009 · N9734Y · Destroyed
  > The loss of control of the airplane in dark night light conditions due to the pilot’s spatial disorientation.
- [NTSB ERA09LA531](https://openairdocs.org/ntsb/ERA09LA531.md): Daniel L Patrick Kolb Mark · Mystic, CT · Accident · Minor injuries · Limited investigation · Final report · Sep 20, 2009 · N208NS · Substantial damage
  > The pilot's failure to maintain airspeed during final approach, resulting in an inadvertent stall. Contributing to the accident was the pilot's lack of total flight experience.
- [NTSB WPR09LA458](https://openairdocs.org/ntsb/WPR09LA458.md): Cassutt III M · Reno, NV · Accident · Serious injuries · Limited investigation · Final report · Sep 19, 2009 · C-FDXO · Substantial damage
  > The loss of engine power due to failure of the No. 2 connecting rod as a result of operation of the engine at excessive temperatures.
- [NTSB CEN09CA593](https://openairdocs.org/ntsb/CEN09CA593.md): Linke KR-2 · Mt. Vernon, IL · Accident · Minor injuries · Data collection · Final report · Sep 18, 2009 · N4207Z · Substantial damage
  > The inadequate preflight planning/preparation and fuel management by the pilot which led to fuel exhaustion and a total loss of engine power during approach. Contributing to the accident was the inoperative fuel indicator.
- [NTSB WPR09LA453](https://openairdocs.org/ntsb/WPR09LA453.md): Quad City Challenger II · Redlands, CA · Accident · 2 fatal · Limited investigation · Final report · Sep 16, 2009 · N732LS · Substantial damage
  > Structural failure of the right wing during the landing approach due to the separation of the wing's fabric covering.
- [NTSB ERA09LA517](https://openairdocs.org/ntsb/ERA09LA517.md): Cessna 172N · Hillsville, VA · Accident · Minor injuries · Limited investigation · Final report · Sep 13, 2009 · N734TV · Substantial damage
  > The total loss of engine power for an undetermined reason.

Next page: https://openairdocs.org/ntsb-phases/500/cases.md?year=2009&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 year(c."eventDate") = 2009
  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?year=2009

---
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.
