# NTSB investigations: 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 104 of 378 · 18,851 cases

## Cases, newest first

- [NTSB CHI01LA243](https://openairdocs.org/ntsb/CHI01LA243.md): Bell 47G-2 · Wheeler, WI · Accident · 1 fatal · Limited investigation · Final report · Jul 26, 2001 · N986B · Substantial damage
  > The pilot not maintaining altitude/clearance from the power transmission line. A factor to the accident was the power transmission line.
- [NTSB CHI01LA242](https://openairdocs.org/ntsb/CHI01LA242.md): Ag-Cat G-164B · Wallace, NE · Accident · No injuries · Limited investigation · Final report · Jul 26, 2001 · N80083 · Substantial damage
  > The inadequate preflight planning by the pilot, the pilot initiating the flight with an inadequate fuel supply, and the unsuitable terrain encountered during the forced landing. Factors were the fuel exhaustion, the low altitude and the soft field.
- [NTSB SEA01LA144](https://openairdocs.org/ntsb/SEA01LA144.md): Hutton KR-2 · Roseburg, OR · Accident · No injuries · Limited investigation · Final report · Jul 25, 2001 · N4GJ · Substantial damage
  > A total loss of power for undetermined reasons and the pilot's misjudgment of distance and speed while maneuvering to a forced landing at a nearby airport. Contributing factors were the 8 knot tailwind and the fence which the aircraft impacted when it over…
- [NTSB ATL01FA093](https://openairdocs.org/ntsb/ATL01FA093.md): Boeing Stearman PT-17 · Anniston, AL · Accident · 2 fatal · Field investigation · Final report · Jul 24, 2001 · N56920 · Destroyed
  > The inadvertent activation of the flight control gust locks by the pilot rated passenger that resulted in the loss of control inflight. Contributing was the pilot in commands failure to follow the airplane's pre-flight inspection check list.
- [NTSB IAD01LA083](https://openairdocs.org/ntsb/IAD01LA083.md): Cessna 150L · Lusby, MD · Accident · No injuries · Limited investigation · Final report · Jul 23, 2001 · N21964 · Substantial damage
  > The student pilot's improper use of carburetor heat.
- [NTSB CHI01LA223](https://openairdocs.org/ntsb/CHI01LA223.md): Hughes 269A · Jacksonville, IL · Accident · Minor injuries · Limited investigation · Final report · Jul 22, 2001 · N8733F · Substantial damage
  > The helicopter's loss of engine power for undetermined reasons while maneuvering close to the ground, and the low altitude and low airspeed. A factor relating to this accident was the pilot not being able to get into autorotation.
- [NTSB LAX01LA256](https://openairdocs.org/ntsb/LAX01LA256.md): Cessna R172K · Mammoth Lakes, CA · Accident · Serious injuries · Limited investigation · Final report · Jul 21, 2001 · N736YR · Destroyed
  > The pilot's inadequate in-flight planning and his failure to maintain sufficient altitude above the terrain. Factors were the high terrain and the blind canyon.
- [NTSB CHI01LA240](https://openairdocs.org/ntsb/CHI01LA240.md): Snow 600-S2C · Plainfield, WI · Accident · No injuries · Limited investigation · Final report · Jul 21, 2001 · N8703V · Substantial damage
  > The pilot not maintaining aircraft control while maneuvering on the aerial application flight. A factor to the accident was the encountered stall/mush at a low altitude.
- [NTSB CHI01FA232](https://openairdocs.org/ntsb/CHI01FA232.md): Smith Kelly-D · Poplar Grove, IL · Accident · 2 fatal · Field investigation · Final report · Jul 21, 2001 · N303SM · Destroyed
  > The right upper wing failed due to overload. A factor was the pilot performing aerobatic manuevers.
- [NTSB DEN01LA125](https://openairdocs.org/ntsb/DEN01LA125.md): Aerospatiale SA315B · Cody, WY · Accident · Minor injuries · Limited investigation · Final report · Jul 17, 2001 · N2128Z · Substantial damage
  > the failure of the turbine assembly due to an over temperature condition. A contributing factor was the lack of suitable terrain for a forced landing.
- [NTSB NYC01FA172](https://openairdocs.org/ntsb/NYC01FA172.md): Beech A23-24 · Bridgeville, DE · Accident · 1 fatal · Field investigation · Final report · Jul 15, 2001 · N5962S · Substantial damage
  > The pilot's incapacitation, which resulted in a loss of aircraft control while maneuvering. A factor was the FAA Aeromedical Certification Division's inadequate certification/approval of the pilot's medical certificate. Findings were the pilot's inappropriate…
- [NTSB LAX01LA244](https://openairdocs.org/ntsb/LAX01LA244.md): Levitsky BD-5T · Cameron Park, CA · Accident · 1 fatal · Limited investigation · Final report · Jul 14, 2001 · N104BD · Destroyed
  > an in-flight collision with terrain for undetermined reasons.
- [NTSB CHI01LA217](https://openairdocs.org/ntsb/CHI01LA217.md): Grumman G-164A · Mandan, ND · Accident · No injuries · Limited investigation · Final report · Jul 14, 2001 · N14AG · Substantial damage
  > the pilot failed to maintain clearance from the powerline. Additional factors were the thermal lift and the powerline.
- [NTSB CHI01LA214](https://openairdocs.org/ntsb/CHI01LA214.md): Piper PA-36-300 · Langdon, ND · Accident · No injuries · Limited investigation · Final report · Jul 14, 2001 · N9900P · Substantial damage
  > the pilot stalled the airplane while manuevering to avoid the power lines. A factor was the power lines.
- [NTSB CHI01LA213](https://openairdocs.org/ntsb/CHI01LA213.md): LaPorte MXL II Sport · Gaines Twp., MI · Accident · Serious injuries · Limited investigation · Final report · Jul 14, 2001 · N4416Y · Substantial damage
  > The pilot's poor planning which resulted in foreign object damage to the propeller, and the low altitude at which the loss of power occurred which resulted in the pilot not being able to properly flare the airplane. Factors associated with the accident were…
- [NTSB LAX01LA245](https://openairdocs.org/ntsb/LAX01LA245.md): Hiller UH-12E · Blythe, CA · Accident · No injuries · Limited investigation · Final report · Jul 13, 2001 · N9281P · Substantial damage
  > The selection by the pilot of an unsuitable precautionary landing site on soft, uneven terrain, which resulted in a rollover.
- [NTSB ATL01FA082](https://openairdocs.org/ntsb/ATL01FA082.md): Luscombe 8A · Resaca, GA · Accident · 2 fatal · Field investigation · Final report · Jul 12, 2001 · N71917 · Substantial damage
  > The certificated flight instructor's failure to maintain control of the airplane during a turning maneuver, which resulted in an inadvertent stall and subsequent collision with terrain. A factor was the loading of the airplane over maximum gross weight.
- [NTSB CHI01FA204](https://openairdocs.org/ntsb/CHI01FA204.md): Piper PA-28-180 · West Lafayette, IN · Accident · 1 fatal · Field investigation · Final report · Jul 11, 2001 · N8955J · Substantial damage
  > The fuel exhaustion due to the pilot's alcohol impaired decision making. Additional factors were the trees and night.
- [NTSB SEA01FA127](https://openairdocs.org/ntsb/SEA01FA127.md): Rockwell S-2R-1200 · Cottonwood, ID · Accident · 1 fatal · Field investigation · Final report · Jul 10, 2001 · N4947X · Destroyed
  > Failure to maintain adequate clearance from terrain while dropping fire retardant. Factors include low visibility with smoke.
- [NTSB FTW01LA176](https://openairdocs.org/ntsb/FTW01LA176.md): Sikorsky SK-76A · New Iberia, LA · Accident · No injuries · Limited investigation · Final report · Jul 10, 2001 · N164AG · Substantial damage
  > the loss of control while maneuvering for undetermined reasons.
- [NTSB FTW01LA169](https://openairdocs.org/ntsb/FTW01LA169.md): Clark CGS Hawk · Bullard, TX · Accident · Serious injuries · Limited investigation · Final report · Jul 9, 2001 · N6323Q · Substantial damage
  > the pilot's failure to maintain clearance with power lines during low level maneuvers.
- [NTSB ATL01TA081](https://openairdocs.org/ntsb/ATL01TA081.md): Hughes TH-55 · Midway, GA · Accident · No injuries · Final report · Jul 9, 2001 · N7053X · Substantial damage
  > The loss of engine power for undetermined reasons. A factoe was the lack of suitable terrain upon which an emergency landing could be made, which resulted in a rollover upon touchdown in a marshy area.
- [NTSB LAX01LA239](https://openairdocs.org/ntsb/LAX01LA239.md): Johansen/Thiessen RV-6A · Jackpot, NV · Accident · 2 fatal · Limited investigation · Final report · Jul 7, 2001 · N246RV · Substantial damage
  > the private pilot's failure to maintain airspeed while maneuvering, which resulted in an inadvertent stall and impact with terrain.
- [NTSB CHI01LA198](https://openairdocs.org/ntsb/CHI01LA198.md): Piper PA-12 · Stillwater, MN · Accident · Minor injuries · Limited investigation · Final report · Jul 7, 2001 · N78495 · Substantial damage
  > The loss of engine power for undermined reasons and the unsuitable terrain encountered during the forced landing. Additional factors included the power line and the trees.
- [NTSB ATL01LA072](https://openairdocs.org/ntsb/ATL01LA072.md): Ryan Navion B · Palm Beach, FL · Accident · No injuries · Limited investigation · Final report · Jul 5, 2001 · N5265K · Substantial damage
  > Loss of engine power for undetermined reasons.
- [NTSB FTW01LA158](https://openairdocs.org/ntsb/FTW01LA158.md): Piper PA-32R-300 · Belle Chase, LA · Accident · 1 fatal · Limited investigation · Final report · Jul 4, 2001 · N5883V · Destroyed
  > the pilot's failure to maintain clearance with a utility pole while maneuvering. Contributing factors were the pilot's impairment due to alcohol intoxication and the night light conditions.
- [NTSB NYC01FA158](https://openairdocs.org/ntsb/NYC01FA158.md): Moravan Zlin 526F · Queen Anne, MD · Accident · 1 fatal · Field investigation · Final report · Jul 2, 2001 · N526GC · Destroyed
  > The pilot's failure to maintain airspeed during an aerobatic maneuver, which resulted in an inadvertent inverted spin.
- [NTSB MIA01LA178](https://openairdocs.org/ntsb/MIA01LA178.md): Cessna 188B · Leesburg, FL · Accident · Serious injuries · Limited investigation · Final report · Jul 2, 2001 · N21894 · No damage
  > The pilot's failure to maintain a visual lookout while deploying the grappling hook in preparation for a banner pick up resulting in the cable wrapping around the stabilizer, subsequent loss of control during the banner drop (due to the cable moving forward…
- [NTSB CHI01LA195](https://openairdocs.org/ntsb/CHI01LA195.md): Air Tractor AT-401 · Ellinwood, KS · Accident · No injuries · Limited investigation · Final report · Jul 2, 2001 · N4549E · Substantial damage
  > The pilot failed to see and avoid the guy wire during an aerial application flight. A factor associated with the accident was the guy wire.
- [NTSB LAX01LA227](https://openairdocs.org/ntsb/LAX01LA227.md): Bell 206B · Salinas, CA · Accident · No injuries · Limited investigation · Final report · Jun 29, 2001 · N2269A · Substantial damage
  > the student's improper use of the cyclic controls and his failure to relinquish aircraft control, and the flight instructor's inadequate supervision.
- [NTSB FTW01LA206](https://openairdocs.org/ntsb/FTW01LA206.md): Cessna 182 · Gladewater, TX · Accident · No injuries · Limited investigation · Final report · Jun 29, 2001 · N8641T · Substantial damage
  > the pilot's inadvertent visual flight into instrument meteorological conditions while maneuvering, which resulted in her spatial disorientation and subsequent loss of control of the airplane.
- [NTSB FTW01LA156](https://openairdocs.org/ntsb/FTW01LA156.md): Rockwell International S-2R · Sabinal, TX · Accident · Minor injuries · Limited investigation · Final report · Jun 28, 2001 · N4888X · Substantial damage
  > a loss of engine power due to a crack in the #9 cylinder, which result in the failure of the connecting rod during the aerial application flight. A contributing factor was the lack of suitable terrain for the forced landing.
- [NTSB SEA01LA122](https://openairdocs.org/ntsb/SEA01LA122.md): Piper PA-38-112 · Bozeman, MT · Accident · No injuries · Limited investigation · Final report · Jun 27, 2001 · N9341T · 2 aircraft · Substantial damage
  > The pilot of another aircraft failed to maintain clearance while maneuvering for a formation flight. An updraft was a factor.
- [NTSB LAX01LA228](https://openairdocs.org/ntsb/LAX01LA228.md): Schweizer G-164B · Meridian, CA · Accident · No injuries · Limited investigation · Final report · Jun 27, 2001 · N2236F · Substantial damage
  > The pilot's misjudged and inadequate altitude while maneuvering during an aerial application flight.
- [NTSB SEA01LA121](https://openairdocs.org/ntsb/SEA01LA121.md): Kaman HH-43B · Mullan, ID · Accident · Minor injuries · Limited investigation · Final report · Jun 26, 2001 · N556D · Substantial damage
  > The development of multiple fatigue cracks which ultimately resulted in the fracture of the 1st stage gas producer turbine rotor sealing disc. Factors contributing to the accident were mountainous/hilly and unsuitable terrain conditions.
- [NTSB MIA01LA172](https://openairdocs.org/ntsb/MIA01LA172.md): Robinson R-22B · Garner, NC · Accident · No injuries · Limited investigation · Final report · Jun 24, 2001 · N7119D · Substantial damage
  > The pilot's failure to maintain altitude clearance above the terrain while maneuvering, resulting in a collision with the terrain, and subsequent rollover.
- [NTSB CHI01FA186](https://openairdocs.org/ntsb/CHI01FA186.md): Bowman Renegade Spirit · Lynn Center, IL · Accident · No injuries · Field investigation · Final report · Jun 23, 2001 · N730JB · Substantial damage
  > the in-flight deformation of the left wing.
- [NTSB CHI01LA183](https://openairdocs.org/ntsb/CHI01LA183.md): Air Tractor AT-402 · Catron, MO · Accident · Minor injuries · Limited investigation · Final report · Jun 22, 2001 · N91966 · Substantial damage
  > the failure of the pilot to maintain clearance from the electrical wires.
- [NTSB CHI01LA181](https://openairdocs.org/ntsb/CHI01LA181.md): Masko Mustang MII · Ann Arbor, MI · Accident · 2 fatal · Limited investigation · Final report · Jun 21, 2001 · N24898 · Destroyed
  > The pilot's failure to maintain control of the airplane resulting in the inadvertent stall/spin. A factor was the pilot's unfamiliarity with the airplane.
- [NTSB LAX01LA213](https://openairdocs.org/ntsb/LAX01LA213.md): Cessna 150E · Burbank, CA · Accident · Minor injuries · Limited investigation · Final report · Jun 17, 2001 · N3937U · Substantial damage
  > Fuel exhaustion while maneuvering during a banner tow flight due to an inadequate fuel supply. A factor was the pilot's improper preflight preparation.
- [NTSB CHI01LA177](https://openairdocs.org/ntsb/CHI01LA177.md): Taylorcraft DCO-65 · Kenosha, WI · Accident · Serious injuries · Limited investigation · Final report · Jun 17, 2001 · N46215 · Destroyed
  > the inadvertent stall by the pilot. The low altitude was a contributing factor.
- [NTSB NYC01LA148](https://openairdocs.org/ntsb/NYC01LA148.md): Cessna 182P · Oswego, NY · Accident · 1 fatal · Limited investigation · Final report · Jun 16, 2001 · N58594 · Destroyed
  > The pilot's inadequate altitude clearance above water while conducting low level flight maneuvers. A factor related to the accident was the pilot's impairment of judgment due to alcohol consumption.
- [NTSB MIA01FA165](https://openairdocs.org/ntsb/MIA01FA165.md): Cessna 150L · Manteo, NC · Accident · 1 fatal · Field investigation · Final report · Jun 16, 2001 · N11912 · Destroyed
  > The pilot's failure to maintain airspeed while maneuvering after releasing a banner resulting in an inadvertent stall and subsequent in-flight collision with terrain.
- [NTSB LAX01LA211](https://openairdocs.org/ntsb/LAX01LA211.md): Hughes 369HS · Mountain View, CA · Accident · Serious injuries · Limited investigation · Final report · Jun 16, 2001 · N4467V · Destroyed
  > The pilot's failure to maintain control while hovering out of ground effect. A factor was the wind gusts.
- [NTSB IAD01LA071](https://openairdocs.org/ntsb/IAD01LA071.md): Robinson R-22A · Atwater, OH · Accident · Serious injuries · Limited investigation · Final report · Jun 16, 2001 · N2242P · Substantial damage
  > The pilot's improper remedial response to a dynamic rollover event, which resulted in the helicopter rolling over on its side.
- [NTSB CHI01FA180](https://openairdocs.org/ntsb/CHI01FA180.md): Potez-Air Fouga CM 170 · La Crosse, WI · Accident · 2 fatal · Field investigation · Final report · Jun 16, 2001 · N301FM · Destroyed
  > The fatigue failure of the aircraft's left wing tip fuel tank rear attachment, while the aircraft was being maneuvered in a low approach, leading to the tank's in-flight separation and subsequent in-flight break up of the airplane and the aircraft's control…
- [NTSB NYC01FA145](https://openairdocs.org/ntsb/NYC01FA145.md): Aeronca 7DC · Fulton, KY · Accident · 2 fatal · Field investigation · Final report · Jun 15, 2001 · N82562 · Destroyed
  > The pilot's failure to maintain control of the airplane, which resulted in an inadvertent stall/spin to the ground. A factor was the pilot's decision to fly from the rear seat, which reduced his visibility of critical flight instruments, including the…
- [NTSB FTW01LA144](https://openairdocs.org/ntsb/FTW01LA144.md): Cessna 182A · Baytown, TX · Accident · No injuries · Limited investigation · Final report · Jun 15, 2001 · N6353B · Substantial damage
  > The unqualified person's failure to maintain clearance with the power lines while maneuvering. A factor was the dark night light conditions.
- [NTSB CHI01FA165](https://openairdocs.org/ntsb/CHI01FA165.md): VanderBeek Christen Eagle II · Plainfield, IL · Accident · Serious injuries · Field investigation · Final report · Jun 15, 2001 · N80VB · Destroyed
  > the improper in-flight planning/decision and the aircraft control not maintained by the pilot. The thunderstorm outflow was a contributing factor.
- [NTSB NYC01LA146](https://openairdocs.org/ntsb/NYC01LA146.md): Cessna 150J · West Mifflin, PA · Accident · Minor injuries · Limited investigation · Final report · Jun 14, 2001 · N61138 · Substantial damage
  > The pilot's failure to maintain airspeed while picking up a banner, and subsequent delay in releasing the banner, resulting in a stall/mush.

Next page: https://openairdocs.org/ntsb-phases/450/cases.md?page=105

## 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."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?page=104

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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.
