# 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 175 of 378 · 18,851 cases

## Cases, newest first

- [NTSB LAX89DVD04](https://openairdocs.org/ntsb/LAX89DVD04.md): Travel Air 4000 · Lodi, CA · Accident · Minor injuries · Final report · Jul 25, 1989 · N1592 · Destroyed
  > The failure of the pilot to see and avoid power lines, while distracted by a moving vehicle on the ground.
- [NTSB MKC89FA165](https://openairdocs.org/ntsb/MKC89FA165.md): Beech C23 · Neligh, NE · Accident · 2 fatal · Field investigation · Final report · Jul 23, 1989 · N66295 · Destroyed
  > Failure of the pilot to maintain adequate airspeed after intiating a steep climbing maneuver from low altitude. Factors related to the accident were: the pilot's lack of total flying experience and lack of sufficient altitude.
- [NTSB ATL89LA184](https://openairdocs.org/ntsb/ATL89LA184.md): Schweizer SGS 1-26E · Alabaster, AL · Accident · No injuries · Limited investigation · Final report · Jul 23, 1989 · N65943 · Substantial damage
  > The glider pilot's poor evaluation of area weather conditions during the flight, which necessitated an off-airport precautionary landing and led to a collision with rough terrain during the landing rollout. Factors contributing to the accident were the…
- [NTSB ATL89DKJ07](https://openairdocs.org/ntsb/ATL89DKJ07.md): Cessna A188B · Town Creek, AL · Accident · 1 fatal · Final report · Jul 22, 1989 · N5618G · Destroyed
  > The inadvertent stall at an altitude inadequate to effect a safe recovery.
- [NTSB LAX89FA241](https://openairdocs.org/ntsb/LAX89FA241.md): Cessna 177 · Hesperia, CA · Accident · 3 fatal · Field investigation · Final report · Jul 21, 1989 · N30039 · Destroyed
  > An inflight collision with a power line while maneuvering at low altitude shortly after departure on a dark night over an area with few ground reference lights. The reasons for the aircraft's flight path and altitude profile are undetermined. A factor in the…
- [NTSB MIA89LA202](https://openairdocs.org/ntsb/MIA89LA202.md): Bell TH-13T · Jay, FL · Accident · No injuries · Limited investigation · Final report · Jul 20, 1989 · N65212 · Substantial damage
  > Inadequate planning/decision by the pilot and his failure to maintain clearance from the power line. Contributing factors were: light conditions at dusk, transmission (power) lines, and the pilot's lack of visual cues (visual perception) at dusk.
- [NTSB DEN89LA174](https://openairdocs.org/ntsb/DEN89LA174.md): Piper PA-28-160 · Crested Butte, CO · Accident · Serious injuries · Limited investigation · Final report · Jul 19, 1989 · N5673W · Substantial damage
  > Failure of the pilot to maintain sufficient altitude while flying over mountainous terrain. The terrain and weather conditions were related factors.
- [NTSB DEN89LA170](https://openairdocs.org/ntsb/DEN89LA170.md): Piper PA-36 · Haswell, CO · Accident · Minor injuries · Limited investigation · Final report · Jul 17, 1989 · N57622 · Destroyed
  > Inadequate visual lookout by the pilot (failed to see & avoid) which resulted in his failure to maintain clearance from the obstruction. Contributing factors were: the unmarked guy wire & the pilot's lack of visual cues (visual perception).
- [NTSB LAX89FA239](https://openairdocs.org/ntsb/LAX89FA239.md): Christen Industries A-1 Husky · Somerton, AZ · Accident · 1 fatal · Field investigation · Final report · Jul 14, 1989 · N29162 · Destroyed
  > Failure of the pilot to maintain adequate airspeed, which resulted in a stall. The lack of altitude for recovery was a related factor.
- [NTSB FTW89DRA07](https://openairdocs.org/ntsb/FTW89DRA07.md): Lowe/Bensen KB-2 · Wharton, TX · Accident · 1 fatal · Final report · Jul 14, 1989 · N7037K · Destroyed
  > Poor judgement by the student pilot by performing excessive/low altitude maneuvers, which resulted in his failure to maintain sufficient clearance (altitude) above the open field. His lack of familiarity with the aircraft was a contributing factor.
- [NTSB ANC89LA123](https://openairdocs.org/ntsb/ANC89LA123.md): De Havilland DHC-2 · Kodiak, AK · Accident · Serious injuries · Limited investigation · Final report · Jul 13, 1989 · N5354G · Substantial damage
  > Pilot-in-command's continued VFR flight into know IFR flt conditions, resulting in a collision with rising terrain.
- [NTSB MKC89DCJ03](https://openairdocs.org/ntsb/MKC89DCJ03.md): Cessna A-188B · Hay Springs, NE · Accident · 1 fatal · Final report · Jul 12, 1989 · N79291 · Substantial damage
  > The pilot's delay in intiating a climb at the end of a swath run.
- [NTSB DEN89LA168](https://openairdocs.org/ntsb/DEN89LA168.md): Cessna 172H · Hatton, ND · Accident · Minor injuries · Limited investigation · Final report · Jul 12, 1989 · N3269L · Destroyed
  > Improper in-flight planning/decision by the pilot and his failure to maintain sufficient clearance above the ground. The tailwind, high obstruction (shelter belt), and downdraft were contributing factors.
- [NTSB CHI89LA133](https://openairdocs.org/ntsb/CHI89LA133.md): Cessna 150 · Iola, WI · Accident · Minor injuries · Limited investigation · Final report · Jul 12, 1989 · N4054J · Substantial damage
  > The improper preflight planning by the pilot in command resulting in the airplane fuel quantity being near the unusable quantity which resulted in total loss of engine power due to fuel starvation while maneuvering. Contributing to the accident was the pilots…
- [NTSB BFO89FA057](https://openairdocs.org/ntsb/BFO89FA057.md): Bellanca 7KCAB · Berlin, MD · Accident · 1 fatal · Field investigation · Final report · Jul 12, 1989 · N57417 · Destroyed
  > Pilot failure to maintain adequate airspeed, resulting in an aerodynamic stall. Contributing to the accident was the low altitude at which the stall occurred.
- [NTSB ANC89DAG01](https://openairdocs.org/ntsb/ANC89DAG01.md): Scorpion II · Anchorage, AK · Accident · No injuries · Final report · Jul 12, 1989 · N5577G · Substantial damage
  > Unqualified person at the flight controls, who was unable to maintain control of the helicopter. The nearby building (airport facility) was a contributing factor.
- [NTSB SEA89LA132](https://openairdocs.org/ntsb/SEA89LA132.md): Rockwell S-2R · Middleton, ID · Accident · No injuries · Limited investigation · Final report · Jul 11, 1989 · N5571X · Substantial damage
  > The pilot did not maintain an adequate visual lookout. A factor was the guy wires at the edge of the field.
- [NTSB MIA89LA196](https://openairdocs.org/ntsb/MIA89LA196.md): Rockwell S-2R · Minter City, MS · Accident · No injuries · Limited investigation · Final report · Jul 11, 1989 · N4967X · Substantial damage
  > Failure of the pilot to see and avoid the powerline. The power line was a contributing factor.
- [NTSB FTW89FA132](https://openairdocs.org/ntsb/FTW89FA132.md): Cessna 152 · Arlington, TX · Accident · 1 fatal · Field investigation · Final report · Jul 11, 1989 · N49056 · Destroyed
  > Poor judgement of the pilot, due to impairment from consumption of alcohol, and his failure to maintain proper altitude while maneuvering. Factors related to the accident were: darkness, the pilot's recent use of drugs, and his lack of flight experience.
- [NTSB DEN89LA167](https://openairdocs.org/ntsb/DEN89LA167.md): Piper PA-25 · Wh Sulphur Spgs, MT · Accident · No injuries · Limited investigation · Final report · Jul 11, 1989 · N6663Z · Substantial damage
  > The pilot failed to maintain adequate airspeed during an aerial application maneuver and inadvertently allowed the aircraft to mush into the ground. Unfavorable wind and turbulence were considered to be contributing factors.
- [NTSB MKC89LA158](https://openairdocs.org/ntsb/MKC89LA158.md): Bristow KR-2 · Perry, IA · Accident · Minor injuries · Limited investigation · Final report · Jul 10, 1989 · N1066 · Substantial damage
  > Fuel starvation caused by fuel contamination.
- [NTSB MKC89FA156](https://openairdocs.org/ntsb/MKC89FA156.md): Piper PA-24-250 · Medicine Lodge, KS · Accident · 3 fatal · Field investigation · Final report · Jul 9, 1989 · N5379P · Destroyed
  > The pilot misjudged clearance above a house (residence) that he was buzzing and allowed the aircraft to collide with the attached antenna.
- [NTSB DEN89FA162](https://openairdocs.org/ntsb/DEN89FA162.md): Cessna 150K · Louisville, CO · Accident · 2 fatal · Field investigation · Final report · Jul 9, 1989 · N6342G · Destroyed
  > Inadequate supervision by the instructor pilot (CFI) and flight in known adverse weather conditions. Factors related to the accident were: inadequate preflight planning/preparation by the CFI, his lack of experience in the type of operation, and the weather…
- [NTSB DEN89DTI03](https://openairdocs.org/ntsb/DEN89DTI03.md): Cessna T188C · Red Lodge, MT · Accident · 1 fatal · Final report · Jul 9, 1989 · N2165J · Destroyed
  > Improper inflight decision by the pilot and his failure to attain sufficient altitude. Rising terrain, high density altitude, and trees were considered to be contributing factors.
- [NTSB BFO89LA056](https://openairdocs.org/ntsb/BFO89LA056.md): Boeing A75N1 · Bealeton, VA · Accident · No injuries · Limited investigation · Final report · Jul 9, 1989 · N56940 · Destroyed
  > Water in the fuel, which resulted in a momentary loss of power during an inverted low pass, and the pilot's failure to plan the maneuver to allow for appropriate remedial action.
- [NTSB ATL89DLT04](https://openairdocs.org/ntsb/ATL89DLT04.md): Pitts S-1 · Butler, TN · Accident · Minor injuries · Final report · Jul 9, 1989 · N8336 · Substantial damage
  > The failure of the pilot to maintain clearance from the surface during an impromptu acrobatic maneuver.
- [NTSB LAX89LA265](https://openairdocs.org/ntsb/LAX89LA265.md): Sikorsky S-58T · Susanville, CA · Accident · Minor injuries · Limited investigation · Final report · Jul 8, 1989 · N6306 · Substantial damage
  > The pilot's inflight decision to enter a descent when he lost yaw control of the aircraft. Turbulent weather conditions and an abrupt touchdown were factors in the accident.
- [NTSB LAX89LA237](https://openairdocs.org/ntsb/LAX89LA237.md): Cessna 150K · Woodland, CA · Accident · No injuries · Limited investigation · Final report · Jul 8, 1989 · N6352G · Substantial damage
  > The pilot's poor judgement in not assuring an adequate fuel supply was on board for the flight.
- [NTSB FTW89DPJ08](https://openairdocs.org/ntsb/FTW89DPJ08.md): Grumman G-164 · Guymon, OK · Accident · Serious injuries · Final report · Jul 8, 1989 · N788Y · Substantial damage
  > Failure of the upper right engine mount (firewall attach bolt) due to fatigue, and failure of the lower right mounting bolt for an unknown reason, which allowed overload failure of the two remaining mounting bolts and separation of the engine.
- [NTSB CHI89FA129](https://openairdocs.org/ntsb/CHI89FA129.md): Piper PA-18 · Roscommon, MI · Accident · 2 fatal · Field investigation · Final report · Jul 8, 1989 · N2336J · Destroyed
  > Loss of control in flight while maneuvering and the failure to perform remedial action by the PIC.
- [NTSB ATL89FA175](https://openairdocs.org/ntsb/ATL89FA175.md): Beech A45 · Troy, AL · Accident · 2 fatal · Field investigation · Final report · Jul 8, 1989 · N7973A · Destroyed
  > The pilot's improper use of the airplane flight controls during a aerobatic maneuver at low altitude due to his lack of aerobatic experience. A contributing factor was the pilot's overconfidence in his ability to perform the maneuver.
- [NTSB ATL89DKJ06](https://openairdocs.org/ntsb/ATL89DKJ06.md): Piper PA-25-235 · Goodway, AL · Accident · Serious injuries · Final report · Jul 8, 1989 · N6941Z · Destroyed
  > The in-flight separation of the left wing which failed because of a corrosion induced fatigue fracture.
- [NTSB ANC89LA116](https://openairdocs.org/ntsb/ANC89LA116.md): Bellanca 7GCBC · Killey River, AK · Accident · No injuries · Limited investigation · Final report · Jul 6, 1989 · N88273 · Substantial damage
  > The pilot failed to assure sufficient alt was obtained to compensate for the downdrafts near the ridge line.
- [NTSB MKC89DPG02](https://openairdocs.org/ntsb/MKC89DPG02.md): Rockwell S-2R · Reyno, AR · Accident · 1 fatal · Final report · Jul 5, 1989 · N4931X · Destroyed
  > Improper in-flight planning/decision by the pilot which resulted in a tight maneuver at inadequate airspeed and a subsequent stall. A contributing factor was the presence of high obstructions (trees).
- [NTSB MKC89FA153](https://openairdocs.org/ntsb/MKC89FA153.md): Bellanca 8KCAB · Broken Bow, NE · Accident · 1 fatal · Field investigation · Final report · Jul 4, 1989 · N8636V · Destroyed
  > Improper planning/decision by the pilot by performing acrobatic flight with baggage in the rear cockpit of the aircraft, which probably restricted movement of the flight controls and resulted in uncontrolled flight and a spin.
- [NTSB LAX89DVG07](https://openairdocs.org/ntsb/LAX89DVG07.md): Schweizer G-164B · Willows, CA · Accident · No injuries · Final report · Jul 4, 1989 · N3627G · Substantial damage
  > Failure of the connecting rod on #1 cylinder of the aircraft powerplant.
- [NTSB MKC89LA150](https://openairdocs.org/ntsb/MKC89LA150.md): Aero Commander S2R · Jonesboro, AR · Accident · No injuries · Limited investigation · Final report · Jul 3, 1989 · N8976Q · Destroyed
  > The pilot's encounter with unsuitable terrain during a forced landing made necessary by the separation of three feet of one of the propeller blades.
- [NTSB MKC89DER01](https://openairdocs.org/ntsb/MKC89DER01.md): Cessna T188C · Wannaska, MN · Accident · 1 fatal · Final report · Jul 3, 1989 · N9438J · Substantial damage
  > The pilot-in-command did not maintain airspeed, resulting in an inadvertent stall.
- [NTSB CHI89DEP06](https://openairdocs.org/ntsb/CHI89DEP06.md): Aeronca 15AC · Fort Atkinson, WI · Accident · Minor injuries · Final report · Jul 3, 1989 · N1271H · Substantial damage
  > Water contamination of the fuel and the pilot's inadequate preflight. Factors related to the accident were: lack of suitable terrain for a forced landing & trees.
- [NTSB MKC89LA148](https://openairdocs.org/ntsb/MKC89LA148.md): Grumman G-164B · Stockville, NE · Accident · No injuries · Limited investigation · Final report · Jul 2, 1989 · N6629Q · Substantial damage
  > Total failure of the powerplant caused by a broken cylinder.
- [NTSB FTW89LA120](https://openairdocs.org/ntsb/FTW89LA120.md): Robinson R22 · Austin, TX · Accident · Minor injuries · Limited investigation · Final report · Jul 2, 1989 · N888CG · Destroyed
  > The pilot's improper inflight planning/decision, which resulted in a situation where he was unable to maintain adequate rotor RPM. Factors related to the accident were: high temperature, tailwind, and trees.
- [NTSB DEN89DTI02](https://openairdocs.org/ntsb/DEN89DTI02.md): Musick/Terratorn Tierra II · Lewistown, MT · Accident · 1 fatal · Final report · Jul 2, 1989 · N349SM · Destroyed
  > The unqualified pilot allowed the aircraft to become airborne while taxiing at high speed, he failed to maintain control of the aircraft, and he inadvertently allowed it to enter a stall/spin and crashed. Factors related to the accident were: his failure to…
- [NTSB NYC89LA152](https://openairdocs.org/ntsb/NYC89LA152.md): Schweizer 1-26 · Elmira, NY · Accident · Minor injuries · Limited investigation · Final report · Jul 1, 1989 · N2746H · Substantial damage
  > An inadvertent encounter with a downdraft.
- [NTSB FTW89LA124](https://openairdocs.org/ntsb/FTW89LA124.md): Aero Commander Lark 100-180 · Gonzales, TX · Accident · No injuries · Limited investigation · Final report · Jul 1, 1989 · N3634X · Substantial damage
  > Failure of the aircraft engine, for undetermined reasons, during a low altitude maneuver.
- [NTSB ANC89LA112](https://openairdocs.org/ntsb/ANC89LA112.md): Cessna 185F · Dillingham, AK · Accident · No injuries · Limited investigation · Final report · Jul 1, 1989 · N6305E · Substantial damage
  > Improper planning/decision by the pilot & a strong downdraft.
- [NTSB SEA89LA127](https://openairdocs.org/ntsb/SEA89LA127.md): Piper PA-28-180 · Snoqualmie Pass, WA · Accident · Serious injuries · Limited investigation · Final report · Jun 30, 1989 · N56759 · Destroyed
  > Improper in-flight planning/descision by the pilot, which resulted in the aircraft entering a box canyon with insufficient speed and altitude to maneuver out of the confined area. Factors related to the accident were: the pilot's continued flight into known…
- [NTSB MKC89GA147](https://openairdocs.org/ntsb/MKC89GA147.md): Maule MX-7 · Atlantic, IA · Accident · 2 fatal · Final report · Jun 30, 1989 · N6131M · Substantial damage
  > Failure of the pilot to maintain adequate airspeed, while maneuvering at low altitude, which led to an inadvertent stall and loss of control. A contributing factor was the lack of altitude to recover from a stall.
- [NTSB LAX89FA229](https://openairdocs.org/ntsb/LAX89FA229.md): Cessna 152 · Cordes, AZ · Accident · 1 fatal · Field investigation · Final report · Jun 30, 1989 · N5199Q · Destroyed
  > The pilot misjudged his altitude, while maneuvering at low altitude over mountainous terrain. Factors related to the accident were: high density altitude, mountainous terrain, and diversion of the pilot's attention.
- [NTSB CHI89LA126](https://openairdocs.org/ntsb/CHI89LA126.md): Luscombe 8A · Sebewaing, MI · Accident · Minor injuries · Limited investigation · Final report · Jun 30, 1989 · N2154K · Substantial damage
  > Pilot's inattentive aircraft handling which resulted in his failure to detect and prevent the aircraft's descent into the wheat field.
- [NTSB ATL89DKG04](https://openairdocs.org/ntsb/ATL89DKG04.md): Air Tractor AT-301 · Americus, GA · Accident · 1 fatal · Final report · Jun 29, 1989 · N8773S · Destroyed
  > The pilot's failure to properly survey the area in which he would be conducting aerial application flights and his failure to see and avoid powerlines while performing aerial application.

Next page: https://openairdocs.org/ntsb-phases/450/cases.md?page=176

## 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=175

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