# 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 83 of 420 · 20,992 cases

## Cases, newest first

- [NTSB CHI04LA264](https://openairdocs.org/ntsb/CHI04LA264.md): Cessna 401 · New Century, KS · Accident · Minor injuries · Limited investigation · Final report · Sep 18, 2004 · N408TE · Substantial damage
  > A loss of engine power due to fuel starvation and the pilot's failure to maintain directional control during approach to an alternate airport. Contributing to the accident was the pilot's failure to obtain a weather briefing, his flight into adverse weather,…
- [NTSB ATL04CA188](https://openairdocs.org/ntsb/ATL04CA188.md): Cessna 172L · Kill Devil Hlls, NC · Accident · Serious injuries · Data collection · Final report · Sep 17, 2004 · N986AC · Substantial damage
  > An in-flight encounter with a downdraft on final approach, which resulted in a loss of control of the airplane and subsequent collision with the ground.
- [NTSB ANC04LA110](https://openairdocs.org/ntsb/ANC04LA110.md): Piper PA-18 · Slana, AK · Accident · No injuries · Limited investigation · Final report · Sep 17, 2004 · N82491 · Substantial damage
  > The pilot's failure to compensate for wind conditions during landing, and his failure to maintain adequate airspeed, which resulted in a loss of control, and subsequent collision with trees during an uncontrolled descent. Factors contributing to the accident…
- [NTSB LAX04LA318](https://openairdocs.org/ntsb/LAX04LA318.md): Boeing 737-3H4 · Los Angeles, CA · Accident · Serious injuries · Limited investigation · Final report · Sep 14, 2004 · N601WN · No damage
  > the flight's encounter with the wake turbulence from a preceding heavy airplane while on approach.
- [NTSB DEN04LA142](https://openairdocs.org/ntsb/DEN04LA142.md): Robinson R22 · Spanish Fork, UT · Accident · Minor injuries · Limited investigation · Final report · Sep 14, 2004 · N777UH · Substantial damage
  > the instructor's premature flare, resulting in a hard landing, and his failure to align the helicopter with the direction of travel, resulting in a rollover.Contributing factors were the low rotor RPM and inadequate airspeed. The reason for the loss of engine…
- [NTSB CHI04FA257](https://openairdocs.org/ntsb/CHI04FA257.md): Cessna 182T · Chesterfield, MO · Accident · 4 fatal · Field investigation · Final report · Sep 13, 2004 · N843MC · Destroyed
  > The pilot not maintaining airspeed and the inadvertent stall he encountered during the go-around. A factor was the tree he impacted during his uncontrolled descent.
- [NTSB CHI04CA258](https://openairdocs.org/ntsb/CHI04CA258.md): Piper PA-28-140 · Detroit, MI · Accident · Minor injuries · Data collection · Final report · Sep 13, 2004 · N7662C · Substantial damage
  > The student pilot's failure to maintain directional control of the airplane during the landing flare and subsequent go-around. A factor was the T-hangar.
- [NTSB SEA04CA186](https://openairdocs.org/ntsb/SEA04CA186.md): Grumman American AA-5A · Brooks, OR · Accident · No injuries · Data collection · Final report · Sep 12, 2004 · N26327 · Destroyed
  > The flight instructor's failure to maintain altitude/clearance on final approach to land resulting in an in-flight collision with terrain. Contributing factors were the student pilot's failure to maintain adequate airspeed during the approach and the flight…
- [NTSB ATL04LA183](https://openairdocs.org/ntsb/ATL04LA183.md): Piper PA-18 · San Juan, PR · Accident · No injuries · Limited investigation · Final report · Sep 12, 2004 · N5546Z · Substantial damage
  > The pilot's failure to apply carburetor heat which resulted in carburetor ice and the subsequent loss of engine power. A factor was weather conditions favorable for carburetor ice.
- [NTSB ATL04LA178](https://openairdocs.org/ntsb/ATL04LA178.md): Schleicher K6-CR · LaGrange, GA · Accident · 1 fatal · Limited investigation · Final report · Sep 12, 2004 · N23Z · Substantial damage
  > The pilot's failure to maintain control of the aircraft which resulted in a stall and subsequent impact with terrain. Factors were the pilot's impairment due to marijuana and his unreported mental conditions.
- [NTSB CHI04FA255](https://openairdocs.org/ntsb/CHI04FA255.md): Cirrus Design SR-22 · Park Falls, WI · Accident · 1 fatal · Field investigation · Final report · Sep 10, 2004 · N1223S · Destroyed
  > The flightcrew's failure to maintain airspeed which resulted in an inadvertent stall and subsequent impact with water during approach. The low altitude was a factor in the accident.
- [NTSB SEA04LA183](https://openairdocs.org/ntsb/SEA04LA183.md): Piper PA-18 · Blaine, WA · Accident · Minor injuries · Limited investigation · Final report · Sep 5, 2004 · N2415P · Substantial damage
  > The instructor pilot's inadequate remedial action during his student's final approach for a simulated engine out water landing.
- [NTSB NYC04CA205](https://openairdocs.org/ntsb/NYC04CA205.md): Piper PA32-300 · Montauk, NY · Accident · No injuries · Data collection · Final report · Sep 5, 2004 · N1351H · Substantial damage
  > The pilot's failure to maintain altitude\clearance while landing. A factor in this accident was the gusty wind conditions.
- [NTSB ANC04FA102](https://openairdocs.org/ntsb/ANC04FA102.md): Piper PA-12 · Koliganek, AK · Accident · 2 fatal · Field investigation · Final report · Sep 4, 2004 · N2899M · Destroyed
  > The pilot's failure to maintain adequate airspeed while on approach to land, which resulted in an inadvertent stall and an uncontrolled descent.
- [NTSB SEA04LA179](https://openairdocs.org/ntsb/SEA04LA179.md): Hardin Lancair 320 · Chewelah, WA · Accident · Minor injuries · Limited investigation · Final report · Sep 3, 2004 · N320MC · Substantial damage
  > Fuel exhaustion as a result of a fuel leak from an undetermined location resulting in a loss of engine power during approach for landing and subsequent forced landing. Soft terrain was a factor.
- [NTSB LAX04LA312](https://openairdocs.org/ntsb/LAX04LA312.md): Beech F33A · Fresno, CA · Accident · No injuries · Limited investigation · Final report · Sep 3, 2004 · N1854N · Substantial damage
  > the pilot's loss of pitch control authority during landing flare due to an autopilot system failure that inhibited control yoke movement. A factor was inadequate autopilot system maintenance.
- [NTSB FTW04LA226](https://openairdocs.org/ntsb/FTW04LA226.md): Cassutt Iiim · Pearland, TX · Accident · 1 fatal · Limited investigation · Final report · Sep 2, 2004 · N3TW · Destroyed
  > The pilot's failure to maintain airspeed sufficient for flight resulting in an inadvertent stall/spin while turning from the base leg of the traffic pattern to final. A contributing factor was the pilot's lack of experience for the make/model airplane.
- [NTSB FTW04LA225](https://openairdocs.org/ntsb/FTW04LA225.md): Boeing 727-2M7 · El Paso, TX · Accident · No injuries · Limited investigation · Final report · Aug 31, 2004 · N742RW · Substantial damage
  > The first officer's failure to maintain aircraft control. Contributing factors were the captain's delayed remedial action and the crosswind.
- [NTSB MIA04LA124](https://openairdocs.org/ntsb/MIA04LA124.md): Cessna 550 · Venice, FL · Accident · No injuries · Limited investigation · Final report · Aug 25, 2004 · N792MA · Substantial damage
  > The pilot's failure to maintain adequate airspeed which resulted in a stall and undershoot of the runway.
- [NTSB DEN04LA129](https://openairdocs.org/ntsb/DEN04LA129.md): Piper PA-24-250 · Sterling, CO · Accident · No injuries · Limited investigation · Final report · Aug 22, 2004 · N5975P · Destroyed
  > the failure of the landing gear extension system for undetermined reasons.
- [NTSB CHI04LA227](https://openairdocs.org/ntsb/CHI04LA227.md): Beech V35B · Anderson, IN · Accident · Minor injuries · Limited investigation · Final report · Aug 15, 2004 · N6411S · Substantial damage
  > The in-flight loss of engine power during downwind for undetermined reasons. A factor was the tree the airplane impacted during the forced landing.
- [NTSB SEA04LA161](https://openairdocs.org/ntsb/SEA04LA161.md): Piper PA-28-140 · Irby, WA · Accident · Minor injuries · Limited investigation · Final report · Aug 14, 2004 · N4195J · Substantial damage
  > Loss of engine power for unknown reasons. Trees and rough/uneven terrain were factors.
- [NTSB SEA04CA164](https://openairdocs.org/ntsb/SEA04CA164.md): Cessna U206G · Rose Lake, ID · Accident · No injuries · Data collection · Final report · Aug 13, 2004 · N9752Z · Substantial damage
  > The pilot's failure to maintain clearance with the powerlines on final approach which resulted in a hard landing. A factor contributing the to accident were the powerlines.
- [NTSB DCA04MA068](https://openairdocs.org/ntsb/DCA04MA068.md): Convair Div. of Gen. Dynamics CV-340 (580) · Florence, KY · Accident · 1 fatal · Class 1 · Major · Final report · Aug 13, 2004 · N586P · Destroyed
  > fuel starvation resulting from the captain's decision not to follow approved fuel crossfeed procedures. Contributing to the accident were the captain's inadequate preflight planning, his subsequent distraction during the flight, and his lateinitiation of the…
- [NTSB NYC04LA191](https://openairdocs.org/ntsb/NYC04LA191.md): Mooney M20K · Edgartown, MA · Accident · Minor injuries · Limited investigation · Final report · Aug 12, 2004 · N231LK · Substantial damage
  > The pilot's failure to maintain airspeed while performing maneuvers to land, which resulted in an inadvertent stall/mush. A factor was the gusting wind conditions.
- [NTSB DEN04CA120](https://openairdocs.org/ntsb/DEN04CA120.md): Mooney M20J · Durango, CO · Accident · Minor injuries · Data collection · Final report · Aug 10, 2004 · N6212Q · Substantial damage
  > the pilot's inadequate compensation for wind conditions and his failure to maintain adequate airspeed resulting in a stall. Factors contributing to the accident were the wind gusts, the downdraft, and the road.
- [NTSB NYC04LA188](https://openairdocs.org/ntsb/NYC04LA188.md): Piper PA-32R-301 · Pittstown, NJ · Accident · Minor injuries · Limited investigation · Final report · Aug 8, 2004 · N4171D · Substantial damage
  > The pilot's failure to obtain a proper climb rate during a go-around, which resulted in a forced landing and subsequent impact with a tree.
- [NTSB IAD04LA035](https://openairdocs.org/ntsb/IAD04LA035.md): Giles Mustang II · Rainelle, WV · Accident · Serious injuries · Limited investigation · Final report · Aug 8, 2004 · N91061 · Substantial damage
  > The partial loss of engine power due to a broken throttle mechanism, which resulted in a forced landing over unsuitable terrain
- [NTSB ATL04LA166](https://openairdocs.org/ntsb/ATL04LA166.md): Sidney Freebird · Lexington, TN · Accident · 1 fatal · Limited investigation · Final report · Aug 8, 2004 · UNREG · Destroyed
  > The pilot's failure to maintain airspeed, resulting in an inadvertent stall, and collision with the ground. A factor was the pilot's total lack of experience in type of aircraft.
- [NTSB SEA04LA157](https://openairdocs.org/ntsb/SEA04LA157.md): Headrick Vans RV9A · Westport, WA · Accident · Serious injuries · Limited investigation · Final report · Aug 7, 2004 · N3086J · Substantial damage
  > Fuel starvation as a result of the pilot's improper fuel management. Carburetor icing conditions and trees were a factor.
- [NTSB ANC04LA091](https://openairdocs.org/ntsb/ANC04LA091.md): Piper PA-18 · Palmer, AK · Accident · No injuries · Limited investigation · Final report · Aug 7, 2004 · N645RF · Substantial damage
  > The pilot's misjudged distance/altitude during the final approach phase of landing, which resulted in an undershoot and subsequent collision with terrain.
- [NTSB FTW04FA206](https://openairdocs.org/ntsb/FTW04FA206.md): Mooney M20J · Olney, TX · Accident · 3 fatal · Field investigation · Final report · Aug 4, 2004 · N1050W · Destroyed
  > The pilot's failure to maintain airspeed sufficient for flight resulting in the inadvertent stall/spin. A contributing factor was the prevailing tailwind.
- [NTSB CHI04LA202](https://openairdocs.org/ntsb/CHI04LA202.md): Piper PA-24 · Rockville, IN · Accident · Minor injuries · Limited investigation · Final report · Jul 30, 2004 · N5769P · Substantial damage
  > The restriction of airflow in the carburetor due to a foreign substance blockage of the venturi. A contributing factor was the trees.
- [NTSB CHI04FA197](https://openairdocs.org/ntsb/CHI04FA197.md): Robinson R22 Alpha · Mount Clemens, MI · Accident · 1 fatal · Field investigation · Final report · Jul 28, 2004 · N103MH · Destroyed
  > A loss of control in flight for undetermined reasons.
- [NTSB LAX04CA282](https://openairdocs.org/ntsb/LAX04CA282.md): Cessna 172P · Big Bear City, CA · Accident · No injuries · Data collection · Final report · Jul 27, 2004 · N65615 · Substantial damage
  > the instructor's inadequate compensation for wind conditions and delayed decision to perform a go-around. Contributing factors were wind gusts, windshear, and an excessive descent rate.
- [NTSB LAX04LA276](https://openairdocs.org/ntsb/LAX04LA276.md): Beech 95-B55 · Minden, NV · Accident · No injuries · Limited investigation · Final report · Jul 24, 2004 · N88CS · Substantial damage
  > the pilot's failure to lower the landing gear during landing approach, which resulted in his inadvertent gear up landing. A factor was his distraction due to a component malfunction.
- [NTSB DEN04LA108](https://openairdocs.org/ntsb/DEN04LA108.md): Davis-Zenair Stol CH 801 · Erie, CO · Accident · No injuries · Limited investigation · Final report · Jul 21, 2004 · N10627 · Substantial damage
  > impact with terrain during a forced landing following a loss of engine power for underdetermined reasons. A contributing factor was the lack of suitable terrain for a forced landing.
- [NTSB NYC04LA169](https://openairdocs.org/ntsb/NYC04LA169.md): Cessna 172N · Erwinna, PA · Accident · Serious injuries · Limited investigation · Final report · Jul 17, 2004 · N262MC · Substantial damage
  > The student pilot's failure to maintain airspeed and his failure to follow the go-around procedure which resulted in a stall.
- [NTSB FTW04LA187](https://openairdocs.org/ntsb/FTW04LA187.md): Saladino Searey · Lewisville, TX · Accident · Serious injuries · Limited investigation · Final report · Jul 17, 2004 · N27VS · Substantial damage
  > The pilot's failure to maintain control of the airplane during final approach. A contributing factor was the gusty crosswind condition.
- [NTSB CHI04LA185](https://openairdocs.org/ntsb/CHI04LA185.md): Varga 2150A · Winterset, IA · Accident · Serious injuries · Limited investigation · Final report · Jul 17, 2004 · N8422J · Substantial damage
  > The inadequate supervision by the certified flight instructor, fuel starvation, visual/aural detection precluded by the certified flight instructor's seat position, and the inadequate crew coordination of both pilots during the instructional flight. A…
- [NTSB ATL04LA158](https://openairdocs.org/ntsb/ATL04LA158.md): Pitts S-1 · Durham, NC · Accident · 1 fatal · Limited investigation · Final report · Jul 17, 2004 · N177J · Substantial damage
  > The pilot's failure to maintain airspeed which resulted in an inadvertent stall/spin and subsequent in-flight collision with terrain.
- [NTSB CHI04CA190](https://openairdocs.org/ntsb/CHI04CA190.md): Selby Dean KR-2-SS · Lake Elmo, MN · Accident · No injuries · Data collection · Final report · Jul 15, 2004 · N299DS · Substantial damage
  > The pilot's inadequate compensation for wind conditions and his failure to maintain aircraft control. A related factor was the crosswind.
- [NTSB MIA04LA103](https://openairdocs.org/ntsb/MIA04LA103.md): Learjet 35A · Newcastle, St. Kitts & Nevis · Accident · No injuries · Limited investigation · Final report · Jul 13, 2004 · N829CA · Substantial damage
  > The pilot's encounter with a downdraft.
- [NTSB CHI04TA193](https://openairdocs.org/ntsb/CHI04TA193.md): PZL-Mielec M-18T · Pine Ridge, SD · Accident · No injuries · Final report · Jul 12, 2004 · N7077N · Substantial damage
  > The propeller went to an overspeed condition as a result of contamination of the propeller control unit due to improper servicing by the operator and the mechanic. A factor was the hilly terrain.
- [NTSB NYC04FA161](https://openairdocs.org/ntsb/NYC04FA161.md): Beech E95 · Atlantic City, NJ · Accident · 2 fatal · Field investigation · Final report · Jul 11, 2004 · N7090N · Substantial damage
  > The pilot's failure to maintain airplane control while performing a go-around after experiencing a loss of power to the left engine for undetermined reason(s). A factor related to the accident was the loss of power to the left engine.
- [NTSB LAX04LA259](https://openairdocs.org/ntsb/LAX04LA259.md): North American T28B · Apple Valley, CA · Accident · No injuries · Limited investigation · Final report · Jul 11, 2004 · N5832X · Substantial damage
  > The pilot's failure to maintain an adequate airspeed during the conclusion of a low pass, which led to a stall/mush.
- [NTSB DEN04CA102](https://openairdocs.org/ntsb/DEN04CA102.md): Mooney M20S · Farmington, NM · Accident · Minor injuries · Data collection · Final report · Jul 10, 2004 · N10059 · Substantial damage
  > the pilot's failure to maintain airspeed resulting in a stall. A contributing factor was the pilot's diverted attention.
- [NTSB ATL04CA154](https://openairdocs.org/ntsb/ATL04CA154.md): Glassic Composites SQ-2000 XL · Dayton, TN · Accident · No injuries · Data collection · Final report · Jul 10, 2004 · N10736 · Substantial damage
  > The pilot's failure to maintain directional control during landing roll, which resulted in a ground loop and the subsequent collapse of the landing gear.
- [NTSB CHI04FA177](https://openairdocs.org/ntsb/CHI04FA177.md): Robinson R-22 Beta · Rochester, MN · Accident · 1 fatal · Field investigation · Final report · Jul 8, 2004 · N8118L · Destroyed
  > The loss of control due to the student pilot's failure to maintain rotor RPM and the flight instructor's inadequate supervision.
- [NTSB NYC04CA159](https://openairdocs.org/ntsb/NYC04CA159.md): Luscombe 8F · Andover, NJ · Accident · No injuries · Data collection · Final report · Jul 4, 2004 · N803B · Substantial damage
  > The pilot's failure to maintain aircraft control during approach. A factor was windshear.

Next page: https://openairdocs.org/ntsb-phases/500/cases.md?page=84

## 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=83

---
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.
