# NTSB investigations: 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 164 of 420 · 20,992 cases

## Cases, newest first

- [NTSB DEN89LA182](https://openairdocs.org/ntsb/DEN89LA182.md): Cessna 182C · Weston, CO · Accident · Minor injuries · Limited investigation · Final report · Jul 20, 1989 · N9038T · Substantial damage
  > Water in the fuel and inadequate preflight by the pilot. A contributing factor was the ditch.
- [NTSB MIA89LA201](https://openairdocs.org/ntsb/MIA89LA201.md): Cessna 172N · Leesburg, FL · Accident · Minor injuries · Limited investigation · Final report · Jul 19, 1989 · N47ER · Substantial damage
  > Failure of the pilot to maintain adequate airspeed, which resulted in an inadvertent stall as he initiated a go-around.
- [NTSB MKC89LA162](https://openairdocs.org/ntsb/MKC89LA162.md): Rockwell S2R · Bono, AR · Accident · No injuries · Limited investigation · Final report · Jul 18, 1989 · N8425V · Destroyed
  > The pilot's failure to maintain airspeed during a go-around resulting in the airplane stalling/mushing and descending out of control until collision with trees.
- [NTSB FTW89LA140](https://openairdocs.org/ntsb/FTW89LA140.md): Aeronca 7AC · Gueydan, LA · Accident · 2 fatal · Limited investigation · Final report · Jul 18, 1989 · N84865 · Substantial damage
  > The pilot's inadvertent spin entry at pattern altitude which resulted in ground collision.
- [NTSB NYC89FA166](https://openairdocs.org/ntsb/NYC89FA166.md): Piper PA-28-236 · Thomasville, PA · Accident · 3 fatal · Field investigation · Final report · Jul 17, 1989 · N2829D · Destroyed
  > The pilot's failure to fly the published approach procedure, which resulted in controlled flight into the terrain.
- [NTSB LAX89LA240](https://openairdocs.org/ntsb/LAX89LA240.md): Cessna T210 · Chandler, AZ · Accident · Minor injuries · Limited investigation · Final report · Jul 17, 1989 · N761JA · Substantial damage
  > Inadequat preflight planning/preparation and the improper flight planning/decisions, ie. Improper fuel consumption calculations, by the PIC.
- [NTSB FTW89FA136](https://openairdocs.org/ntsb/FTW89FA136.md): Piccard AX-6 · Houston, TX · Accident · 2 fatal · Field investigation · Final report · Jul 16, 1989 · N85DP · Destroyed
  > The pilot's failure to abort the attempt to clear the obstacle. Factors in the accident were: the poor condition of the balloon envelope and the pilot's lack of experience as pilot in command of balloon operations.
- [NTSB FTW89LA139](https://openairdocs.org/ntsb/FTW89LA139.md): Piper PA-24-260 · Llano, TX · Accident · No injuries · Limited investigation · Final report · Jul 15, 1989 · N9183P · Substantial damage
  > The pilot's inadvertent closing of the mixture control while his attention was diverted to the landing gear cycling. The engine subsequently quit followed by a forced landing and collision with trees.
- [NTSB MIA89FA192](https://openairdocs.org/ntsb/MIA89FA192.md): Cessna 152 · Miami Lakes, FL · Accident · No injuries · Field investigation · Final report · Jul 12, 1989 · N69224 · Substantial damage
  > The failure of the pilot to visually inspect the airplane fuel tanks during the preflight inspection to assure adequate fuel to conduct the flight was available.
- [NTSB FTW89LA131](https://openairdocs.org/ntsb/FTW89LA131.md): Cessna 172K · Blanco, TX · Accident · Minor injuries · Limited investigation · Final report · Jul 9, 1989 · N758AN · Substantial damage
  > Inadequate in-flight planning/decisions by not identifying the wind direction along with the failure to maintain airspeed. Contributing to the accident was the tailwind, wires and trees.
- [NTSB MIA89IA186](https://openairdocs.org/ntsb/MIA89IA186.md): Bell 206L-1 · Chiefland, FL · Incident · No injuries · Incident investigation · Final report · Jul 6, 1989 · N2137U · No damage
  > Engine failure due to failure of the first stage turbine wheel disk.
- [NTSB LAX89LA230](https://openairdocs.org/ntsb/LAX89LA230.md): Piper PA-30B-160 · Merced, CA · Accident · Minor injuries · Limited investigation · Final report · Jul 6, 1989 · N8212Y · Substantial damage
  > The pilot's inadequate preflight planning/preparation, resulting in fuel exhaustion.
- [NTSB DEN89FA155](https://openairdocs.org/ntsb/DEN89FA155.md): Piper PA-16 · Minot, ND · Accident · Serious injuries · Field investigation · Final report · Jul 5, 1989 · N5295H · Destroyed
  > Failure of the airframe tubing (longeron) at the lower forward door frame due to corrosion. A contributing factor was failure of maintenance personnel to comply with service bulletin #819.
- [NTSB ANC89LA114](https://openairdocs.org/ntsb/ANC89LA114.md): Cessna 180 · Port Alsworth, AK · Accident · Minor injuries · Limited investigation · Final report · Jul 5, 1989 · N1512C · Substantial damage
  > A blocked fuel line between the fuel selector and the engine which caused fuel starvation.
- [NTSB MIA89FA181](https://openairdocs.org/ntsb/MIA89FA181.md): Wood-Oldfield Baby Great Lakes · Clermont, FL · Accident · 1 fatal · Field investigation · Final report · Jul 2, 1989 · N2039 · Destroyed
  > Failure of the pilot to maintain airspeed which resulted in an inadvertent stall/spin. A contributing factor was the pilot's lack of experience in the aircraft.
- [NTSB FTW89LA129](https://openairdocs.org/ntsb/FTW89LA129.md): Cessna 182 · Elmendorf, TX · Accident · Minor injuries · Limited investigation · Final report · Jul 2, 1989 · N5827B · Substantial damage
  > Pilot's decision to discontinue the use of carburetor heat, in carburetor icing conditions, that led to a complete loss of power at an altitude insufficient for a safe landing on the airport.
- [NTSB DEN89LA151](https://openairdocs.org/ntsb/DEN89LA151.md): Ercoupe 415C · Ennis, MT · Accident · No injuries · Limited investigation · Final report · Jul 2, 1989 · N3246H · Substantial damage
  > The failure of the pilot to maintain airspeed, which resulted in an inadvertent stall.
- [NTSB CHI89FA124](https://openairdocs.org/ntsb/CHI89FA124.md): Cessna 150L · Sugar Grove, IL · Accident · 1 fatal · Field investigation · Final report · Jul 2, 1989 · N16004 · Destroyed
  > Failure to maintain airspeed above stall speed, and a stall/spin encountered with inadequate altitude for recovery. Factors related to the accident were: thunderstorm, pre-flight briefing not obtained and poor weather evaluation by the pilot.
- [NTSB DEN89LA164](https://openairdocs.org/ntsb/DEN89LA164.md): Piper PA-32R-301T · Telluride, CO · Accident · No injuries · Limited investigation · Final report · Jun 30, 1989 · N82908 · Substantial damage
  > The pilot's failure to maintain aircraft control during an encounter with turbulence. Contributing to the accident was the turbulence.
- [NTSB CHI89DEP12](https://openairdocs.org/ntsb/CHI89DEP12.md): Schuning/Teratorn Terra II · New Berlin, WI · Accident · Serious injuries · Final report · Jun 25, 1989 · N87KS · Destroyed
  > Failure of the pilot to maintain adequate airspeed during the go-around, which resulted in an inadvertent stall.
- [NTSB ANC89LA103](https://openairdocs.org/ntsb/ANC89LA103.md): De Havilland DHC-2 · Iliamna, AK · Accident · Serious injuries · Limited investigation · Final report · Jun 24, 1989 · N5595M · Substantial damage
  > Inadequate annual inspection by maintenance personnel.
- [NTSB LAX89LA224](https://openairdocs.org/ntsb/LAX89LA224.md): Cessna 340 · Paso Robles, CA · Accident · No injuries · Limited investigation · Final report · Jun 20, 1989 · N69549 · Substantial damage
  > Improper use (mismanagement) of the fuel system by the pilot, which resulted in fuel starvation. Related factors were: the lack of fuel quantity indicators (not installed) in the aircraft, flight by the pilot with this known deficiency, and trees in the…
- [NTSB DEN89LA142](https://openairdocs.org/ntsb/DEN89LA142.md): Piper PA28-180 · Broomfield, CO · Accident · Minor injuries · Limited investigation · Final report · Jun 20, 1989 · N8419W · Substantial damage
  > The failure of the student to properly plan the flt resulting in fuel exhaustion.
- [NTSB ANC89IA099](https://openairdocs.org/ntsb/ANC89IA099.md): De Havilland DHC-3 · Palmer, AK · Incident · No injuries · Incident investigation · Final report · Jun 20, 1989 · N41755 · No damage
  > Inadequate lubrication which resulted in the failure of the horizontal stabilizer's trim actuator.
- [NTSB LAX89LA222](https://openairdocs.org/ntsb/LAX89LA222.md): American AA-1C · Kalaupapa, HI · Accident · 2 fatal · Limited investigation · Final report · Jun 19, 1989 · N88ME · Destroyed
  > The pilot's failure to maintain sufficient airspeed to prevent a stall from which there was insufficient altitude to recover.
- [NTSB DEN89LA140](https://openairdocs.org/ntsb/DEN89LA140.md): Schweizer 1-26E · Elbert, CO · Accident · No injuries · Limited investigation · Final report · Jun 18, 1989 · N65910 · Substantial damage
  > The pilot's improper inflight planning which placed the aircraft too FAR from the runway to complete a normal landing.
- [NTSB CHI89LA116](https://openairdocs.org/ntsb/CHI89LA116.md): Cessna 150 · Port Huron, MI · Accident · Serious injuries · Limited investigation · Final report · Jun 18, 1989 · N8752S · Destroyed
  > Improper in-flight planning/decision by the student pilot and his inadvertent encounter with wake turbulence from the transport aircraft. The student's lack of total experience was considered a contributing factor.
- [NTSB CHI89LA111](https://openairdocs.org/ntsb/CHI89LA111.md): Boeing E75 · Shelbyville, IN · Accident · No injuries · Limited investigation · Final report · Jun 17, 1989 · N43YP · Substantial damage
  > The pilot allowed his attention to be devaited, misjudged altitude and distance to the runway while on final approach, and failed to maintain clearance above the power lines. Contributing factors were: the power lines and parked aircraft.
- [NTSB MIA89LA175](https://openairdocs.org/ntsb/MIA89LA175.md): Cessna 210L · Miramar, FL · Accident · Minor injuries · Limited investigation · Final report · Jun 16, 1989 · N732AG · Substantial damage
  > Inadequate planning/decision by the pilot, which resulted in loss of engine power due to fuel exhaustion. A contributing factor was the faulty reading from the fuel quantity indicator.
- [NTSB ATL89FA160](https://openairdocs.org/ntsb/ATL89FA160.md): Grumman American AA-5 · Columbus, OH · Accident · Minor injuries · Field investigation · Final report · Jun 15, 1989 · N6506L · Destroyed
  > The student pilot's improperly planned approach, and inadequate supervision by the instructor pilot (CFI), which led to an encounter with wake turbulence and a loss of aircraft control.
- [NTSB DEN89LA136](https://openairdocs.org/ntsb/DEN89LA136.md): Cessna 150M · Gooding, ID · Accident · No injuries · Limited investigation · Final report · Jun 14, 1989 · N704AS · Substantial damage
  > Improper inflight decision of the pilot to continue the flight without refueling which resulted in fuel exhaustion.
- [NTSB BFO89LA044](https://openairdocs.org/ntsb/BFO89LA044.md): Cessna 172A · Madison Heights, VA · Accident · No injuries · Limited investigation · Final report · Jun 12, 1989 · N7605T · Substantial damage
  > Student pilot's failure to maintain proper airspeed during the landing attempt which resulted in the initiation of a go-around. Contributing factors to the accident were the pilot's poor preflight planning and his becoming disoriented during the flight. Also…
- [NTSB FTW89LA112](https://openairdocs.org/ntsb/FTW89LA112.md): Swift GC-1B · Luther, OK · Accident · Minor injuries · Limited investigation · Final report · Jun 11, 1989 · N80791 · Substantial damage
  > Failure of the pilot to maintain adequate airspeed, which resulted in an inadvertent stall. The proximity of the trees were a factor.
- [NTSB SEA89FA103](https://openairdocs.org/ntsb/SEA89FA103.md): Whittaker Bushby Mustang 1 · Alderwood Manor, WA · Accident · 1 fatal · Field investigation · Final report · Jun 10, 1989 · N8020E · Destroyed
  > Pilot's failure to maintain proper airspeed. Contributing factors were the pilot's poor judgement in flying a traffic pattern at tree-top level and a tailwind condition during the steep turn to final.
- [NTSB MIA89FA172](https://openairdocs.org/ntsb/MIA89FA172.md): Piper PA-28-180 · Ashland, VA · Accident · 1 fatal · Field investigation · Final report · Jun 9, 1989 · N33320 · Destroyed
  > Improper go-around by the pilot by not maintaining a climb and obtaining proper altitude before turning. The pilot's poor approach and the trees were considered to be contributing factors.
- [NTSB FTW89DRD06](https://openairdocs.org/ntsb/FTW89DRD06.md): Grumman-Schweizer G-164B · Ville Platte, LA · Accident · No injuries · Final report · Jun 6, 1989 · N6693Q · Substantial damage
  > Wear and/or failure of the carburetor/float. Factors related to the accident were: the terrain conditions.
- [NTSB MKC89LA124](https://openairdocs.org/ntsb/MKC89LA124.md): Piper PA-38 · Buffalo, MN · Accident · No injuries · Limited investigation · Final report · Jun 4, 1989 · N38329 · Substantial damage
  > Misjudgement of altitude and distance by the student and inadequate supervision of flight by the instructor (CFI). Contributing factors were: unfavorable wind conditions, high vegetation (grass), and a ditch.
- [NTSB DEN89FA131](https://openairdocs.org/ntsb/DEN89FA131.md): Boeing PT-17 · Meeker, CO · Accident · 1 fatal · Field investigation · Final report · Jun 3, 1989 · N555JW · Destroyed
  > The inadvertent stall-spin at an altitude insufficient to effect a safe recovery. Contributing factors include high density altitude and wind shear.
- [NTSB FTW89LA106](https://openairdocs.org/ntsb/FTW89LA106.md): Bell 206L · Abbeville, LA · Accident · No injuries · Limited investigation · Final report · Jun 2, 1989 · N992PT · Substantial damage
  > Partial loss of engine power for an undetermined reason. Factors related to the accident were: person(s) in the intended emergency landing area and soft terrain where the helicopter touched down.
- [NTSB FTW89LA100](https://openairdocs.org/ntsb/FTW89LA100.md): Piper PA-32R · Stratford, TX · Accident · No injuries · Limited investigation · Final report · May 30, 1989 · N3279Q · Substantial damage
  > Improper planning/decision by the pilot, and his inadequate compensation for wind conditions, which resulted in a loss of aircraft control. The wind condition was a related factor.
- [NTSB DEN89FA127](https://openairdocs.org/ntsb/DEN89FA127.md): Piper PA-28-180 · Wilmington, OH · Accident · 3 fatal · Field investigation · Final report · May 30, 1989 · N8213W · Destroyed
  > The failure of the pilot to assure an adequate fuel supply and his failure to refuel en route.
- [NTSB ATL89LA153](https://openairdocs.org/ntsb/ATL89LA153.md): Piper PA-22-135 · Medina, OH · Accident · Serious injuries · Limited investigation · Final report · May 30, 1989 · N2124A · Destroyed
  > Failure of airport management to establish a displaced threshold which would provide adequate obstruction clearance. Factors contributing to the accident were the power lines, the utility pole and the dusk light conditions.
- [NTSB SEA89LA094](https://openairdocs.org/ntsb/SEA89LA094.md): Cessna 182B · Bend, OR · Accident · No injuries · Limited investigation · Final report · May 29, 1989 · N2770G · Substantial damage
  > The pilot allowed his attention to be diverted by a crosswind and failed to maintain clearance from trees on approach.
- [NTSB CHI89LA096](https://openairdocs.org/ntsb/CHI89LA096.md): Piper PA28R-180 · Frankfort, IL · Accident · Minor injuries · Limited investigation · Final report · May 29, 1989 · N4980J · Destroyed
  > Pilot's failure to maintain directional control while attempting to land in cross/tailwind conditions.
- [NTSB ANC89LA081](https://openairdocs.org/ntsb/ANC89LA081.md): Cessna 185F · Kahiltna Glac, AK · Accident · No injuries · Limited investigation · Final report · May 29, 1989 · N1047F · Substantial damage
  > The pilot's decision to commit himself to a landing before completing an evaluation of the weather in the vicinity of the landing site. Contributing to the severity of the accident was the snowbank off the side of the runway with which the aircraft collided.
- [NTSB LAX89LA207](https://openairdocs.org/ntsb/LAX89LA207.md): Cessna A185F · Jackson, CA · Accident · No injuries · Limited investigation · Final report · May 28, 1989 · N1042F · Substantial damage
  > The pilot did not establish a climb rate sufficient enough to clear trees before turning towards them during a go-around. Contributing to the accident were gusty crosswinds which changed to a tailwind when the aircraft turned to the right and the pilots…
- [NTSB BFO89LA037](https://openairdocs.org/ntsb/BFO89LA037.md): Schweizer I-26E · Churchville, MD · Accident · Serious injuries · Limited investigation · Final report · May 28, 1989 · N1124S · Destroyed
  > The pilot's failure to maintain adequate airspeed during the turn from base to final approach which resulted in the wing contacting the ground and the glider cartwheeling.
- [NTSB FTW89LA103](https://openairdocs.org/ntsb/FTW89LA103.md): Piper PA-22-150 · Crosbyton, TX · Accident · Minor injuries · Limited investigation · Final report · May 27, 1989 · N7648D · Destroyed
  > The pilot's judgement of altitude and distance while on an approach to land. Factors related to the accident were: the high wind, transmission line, and airport fuel tank.
- [NTSB MKC89FA116](https://openairdocs.org/ntsb/MKC89FA116.md): Beech D55 · Greenwood, IN · Accident · 2 fatal · Field investigation · Final report · May 26, 1989 · N8450N · Destroyed
  > Inadequate preflight and improper use of the fuel system, which resulted in fuel starvation, and improper use of emergency procedures. Factors related to the accident were: self induced pressure by the pilot to meet an arrival time, his failure to extend the…
- [NTSB MKC89LA113](https://openairdocs.org/ntsb/MKC89LA113.md): American AA5-B · Valentine, NE · Accident · Minor injuries · Limited investigation · Final report · May 24, 1989 · N45278 · Substantial damage
  > The pilot delayed initiating a go-around after not attaining a proper touchdown point during the approach to land. Contributing factors were the high density altitude and the trees off the departure end of the runway.

Next page: https://openairdocs.org/ntsb-phases/500/cases.md?page=165

## 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 = 500)
ORDER BY c."eventDate" DESC, c."ntsbNumber" DESC
```

This list as a web page: https://openairdocs.org/ntsb-phases/500/cases?page=164

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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.