# NTSB investigations: Enroute

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 116 of 718 · 35,885 cases

## Cases, newest first

- [NTSB CHI08CA035](https://openairdocs.org/ntsb/CHI08CA035.md): Mooney M20E · Lafayette, IN · Accident · No injuries · Data collection · Final report · Nov 1, 2007 · N5912Q · Substantial damage
  > The improper installation of the connecting rod bolts during major overhaul, which resulted in the separation of the connecting rod from the crankshaft in flight. Contributing to the accident was the rising terrain encountered during touchdown and the…
- [NTSB SEA08CA016](https://openairdocs.org/ntsb/SEA08CA016.md): Dye Rans S-12 Airaile · Cottage Grove, OR · Accident · Minor injuries · Data collection · Final report · Oct 31, 2007 · N2161Y · Substantial damage
  > The loss of engine power for an undetermined reason. A contributing factor was the lack of suitable terrain for the forced landing.
- [NTSB NYC08FA020](https://openairdocs.org/ntsb/NYC08FA020.md): Piper PA-28-181 · Boynton Beach, FL · Accident · 2 fatal · Field investigation · Final report · Oct 28, 2007 · N8155C · Substantial damage
  > A total loss of engine power due to fuel starvation as a result of the pilots' improper in-flight fuel management.
- [NTSB ANC08LA010](https://openairdocs.org/ntsb/ANC08LA010.md): Piper 601P · Penn Yan, NY · Accident · No injuries · Limited investigation · Final report · Oct 28, 2007 · N717SB · Substantial damage
  > The loss of engine power during cruise flight for an undetermined reason.
- [NTSB SEA08LA012](https://openairdocs.org/ntsb/SEA08LA012.md): Beech F35 · San Carlos, CA · Accident · No injuries · Limited investigation · Final report · Oct 27, 2007 · N5050B · Substantial damage
  > A total loss of engine power for undetermined reasons. Contributing to the accident was the lack of suitable terrain for a forced landing.
- [NTSB LAX08FA001](https://openairdocs.org/ntsb/LAX08FA001.md): Piper PA-28R-200 · Cedar City, UT · Accident · 2 fatal · Field investigation · Final report · Oct 27, 2007 · N3971X · Destroyed
  > The pilot's failure to maintain aircraft control while in cruise flight due to spatial disorientation. Contributing to the accident were the dark conditions.
- [NTSB NYC08LA019](https://openairdocs.org/ntsb/NYC08LA019.md): Ercoupe 415-C · Stuart, FL · Accident · No injuries · Limited investigation · Final report · Oct 24, 2007 · N94320 · Substantial damage
  > A partial loss of engine power during cruise flight due to a partially blocked fuel line.
- [NTSB CHI08FA027](https://openairdocs.org/ntsb/CHI08FA027.md): Piper PA-44-180 · Browerville, MN · Accident · 2 fatal · Field investigation · Final report · Oct 24, 2007 · N327ND · Substantial damage
  > An in-flight collision with at least one Canada goose, and the resulting damage to the left stabilator that caused the airplane to become uncontrollable. Contributing to the accident was the night lighting condition, which precluded any possibility of the…
- [NTSB MIA08LA007](https://openairdocs.org/ntsb/MIA08LA007.md): Catchot Angus Kitfox IV · Crescent City, FL · Accident · No injuries · Limited investigation · Final report · Oct 23, 2007 · N61AC · Substantial damage
  > The loss of engine power for undetermine reasons.
- [NTSB NYC08LA015](https://openairdocs.org/ntsb/NYC08LA015.md): Ryan ST-3KR · Unadilla, GA · Accident · No injuries · Limited investigation · Final report · Oct 20, 2007 · N780SR · Substantial damage
  > The improper propeller installation by the mechanic.
- [NTSB DFW08LA019](https://openairdocs.org/ntsb/DFW08LA019.md): Cessna U206G · Lebanon, ME · Accident · No injuries · Limited investigation · Final report · Oct 18, 2007 · N8777Q · Substantial damage
  > Failure of the crankshaft resulting in the total loss of engine power.
- [NTSB DFW08CA016](https://openairdocs.org/ntsb/DFW08CA016.md): Ward RC 350 HP · Magnolia, TX · Accident · No injuries · Data collection · Final report · Oct 18, 2007 · N901RC · Destroyed
  > The in-flight fire and loss of engine power as a result of a ruptured fuel line for undetermined reasons. A contributing factor was the lack of suitable terrain for the forced landing.
- [NTSB CHI08CA019](https://openairdocs.org/ntsb/CHI08CA019.md): Bell 47G-2A · Wautoma, WI · Accident · No injuries · Data collection · Final report · Oct 17, 2007 · N73223 · Substantial damage
  > The pilot's failure to maintain control of the helicopter resulting from a distraction in the cockpit. A contributing factor was the distraction due to the dog in the cockpit.
- [NTSB SEA08LA007](https://openairdocs.org/ntsb/SEA08LA007.md): Haring Clay RV8A · Brigham City, UT · Accident · Minor injuries · Limited investigation · Final report · Oct 10, 2007 · N202HW · Substantial damage
  > Fuel exhaustion due to the pilot's inaccurate fuel consumption calculations. Factors include an inaccurate fuel quantity measuring system, and soft terrain encountered during the landing roll.
- [NTSB LAX08LA009](https://openairdocs.org/ntsb/LAX08LA009.md): Cessna 172L · Prescott, AZ · Accident · Minor injuries · Limited investigation · Final report · Oct 10, 2007 · N9897G · Substantial damage
  > The failure of maintenance personnel to detect fatigue cracks in the number 3 exhaust rocker arm, which lead to a partial loss of engine power.
- [NTSB LAX08LA008](https://openairdocs.org/ntsb/LAX08LA008.md): Mooney M20F · Alamo, NV · Accident · No injuries · Limited investigation · Final report · Oct 9, 2007 · N9612M · Substantial damage
  > Failure of the number 2 cylinder piston compression ring, which resulted in oil exhaustion and a catastrophic internal engine failure.
- [NTSB DEN08LA005](https://openairdocs.org/ntsb/DEN08LA005.md): Sproul 72K-TET · Rio Rancho, NM · Accident · Serious injuries · Limited investigation · Final report · Oct 9, 2007 · N72KX · No damage
  > The pilot's inadequate inflight planning/judgment, and his selection of unsuitable terrain on which to make a landing. Contributing factors in this accident were the unfavorable wind, and the pilot misjudging his airspeed.
- [NTSB DEN08LA004](https://openairdocs.org/ntsb/DEN08LA004.md): Aerostar S-66A · Albuquerque, NM · Accident · 1 fatal · Limited investigation · Final report · Oct 8, 2007 · N7179Z · Substantial damage
  > The pilot's failure to maintain adequate visual lookout and clearance resulting in an in-flight collision with power lines, and the ground crew's improper assistance. Contributing to this accident were the high wind, the pilot's diverted attention, low…
- [NTSB SEA08FA006](https://openairdocs.org/ntsb/SEA08FA006.md): Cessna 310N · Ekalaka, MT · Accident · 2 fatal · Field investigation · Final report · Oct 7, 2007 · N85WT · Substantial damage
  > The pilot's improper in-flight planning/decision, his continued flight into adverse weather (icing conditions), and failure to maintain an adequate airspeed during the emergency descent for landing. Contributing to the accident were the forecast icing…
- [NTSB NYC08LA008](https://openairdocs.org/ntsb/NYC08LA008.md): Beech D55 · St.Croix · Accident · 1 fatal · Limited investigation · Final report · Oct 7, 2007 · N100UC · Destroyed
  > The non-instrument rated pilot's decision to continue VFR flight into IMC conditions subsequently leading to a loss of control. Contributing to the accident was the pilot's lack of instrument experience, the weather conditions, and the night lighting…
- [NTSB NYC08CA006](https://openairdocs.org/ntsb/NYC08CA006.md): Beech G35 · Lexington, SC · Accident · No injuries · Data collection · Final report · Oct 7, 2007 · N4575D · Substantial damage
  > The pilot's inadequate fuel management.
- [NTSB LAX08LA005](https://openairdocs.org/ntsb/LAX08LA005.md): Cessna 150D · Strawberry, AZ · Accident · No injuries · Limited investigation · Final report · Oct 6, 2007 · N4570U · Substantial damage
  > The loss of engine power for an undetermined reason.
- [NTSB MIA08FA003](https://openairdocs.org/ntsb/MIA08FA003.md): Bellanca 7GCBC · Newton, GA · Accident · 1 fatal · Field investigation · Final report · Oct 5, 2007 · N62970 · Substantial damage
  > The failure of the right wing wooden spar due while the airplane was in cruise flight, due to the mechanic's inadequate annual inspection and his failure to comply with an airworthiness directive.
- [NTSB LAX08FA002](https://openairdocs.org/ntsb/LAX08FA002.md): Piper PA-28-140 · Oak Hills, CA · Accident · 1 fatal · Field investigation · Final report · Oct 5, 2007 · N6549W · Substantial damage
  > The pilot's continued flight into instrument meteorological conditions and failure to maintain terrain clearance during cruise flight. Contributing to the accident were mountainous terrain, dark night, and fog.
- [NTSB DEN08FA003](https://openairdocs.org/ntsb/DEN08FA003.md): Raytheon C90A · Pagosa Springs, CO · Accident · 3 fatal · Field investigation · Final report · Oct 5, 2007 · N590GM · Destroyed
  > The pilot's failure to maintain clearance from mountainous terrain. Contributing to the accident was the pilot's inadequate preflight planning, improper in-flight planning and decision making, the dark night, and the controller's failure to issue a safety…
- [NTSB CHI08CA005](https://openairdocs.org/ntsb/CHI08CA005.md): Piper PA-18-150 · Hot Springs, AR · Accident · Minor injuries · Data collection · Final report · Oct 4, 2007 · N4157R · Substantial damage
  > The total loss of engine power due to inadequate fuel consumption calculations by the pilot resulting in fuel starvation while maneuvering over a lake at too low altitude for a safe landing. An additional cause was the unsuitable terrain encountered during…
- [NTSB NYC08CA002](https://openairdocs.org/ntsb/NYC08CA002.md): Piper PA-28-180 · Fairview, TN · Accident · Minor injuries · Data collection · Final report · Oct 3, 2007 · N7751N · Substantial damage
  > A loss of engine power due to fuel exhaustion.
- [NTSB SEA08LA001](https://openairdocs.org/ntsb/SEA08LA001.md): Cessna 172N · Green Valley, AZ · Accident · No injuries · Limited investigation · Final report · Oct 2, 2007 · N6291D · Substantial damage
  > The loss of engine power due to the separation of the number three cylinder exhaust rocker arm.
- [NTSB ANC07FA109](https://openairdocs.org/ntsb/ANC07FA109.md): Helio H-295 · King Salmon, AK · Accident · 4 fatal · Field investigation · Final report · Oct 1, 2007 · N295BA · Substantial damage
  > A corrosion-induced fatigue fracture of the airplane's left wing to fuselage attachment cap fitting, which resulted in a partial separation of the left wing, and an uncontrolled descent.
- [NTSB DEN07LA166](https://openairdocs.org/ntsb/DEN07LA166.md): Piper PA-28R-201T · Taos, NM · Accident · No injuries · Limited investigation · Final report · Sep 30, 2007 · N38765 · Substantial damage
  > The unsecured B-nut fitting to the fuel return line which allowed for fuel spillage, an engine fire, and fuel exhaustion that led to the engine's subsequent failure. a factor contributing to the accident was the pilot's intentional wheels up landing in rough,…
- [NTSB DCA07MA310](https://openairdocs.org/ntsb/DCA07MA310.md): Mcdonnell Douglas DC-9-82 (MD-82) · St. Louis, MO · Accident · No injuries · Class 1 · Major · Final report · Sep 28, 2007 · N454AA · Substantial damage
  > American Airlines’ maintenance personnel’s use of an inappropriate manual engine start procedure, which led to the uncommanded opening of the left engine air turbine starter valve, and a subsequent left engine fire, which was prolonged by the flight crew’s…
- [NTSB LAX07LA281](https://openairdocs.org/ntsb/LAX07LA281.md): Eurocopter France EC 130 B4 · Meadview, AZ · Accident · Minor injuries · Limited investigation · Final report · Sep 27, 2007 · N808MH · Substantial damage
  > Collision with a bird during cruise flight.
- [NTSB MIA07LA158](https://openairdocs.org/ntsb/MIA07LA158.md): Fly BY Sea Comp AIR 1 · Rockledge, FL · Accident · No injuries · Limited investigation · Final report · Sep 26, 2007 · N880FS · Substantial damage
  > Loss of engine power for undetermined reasons.
- [NTSB CHI07FA305](https://openairdocs.org/ntsb/CHI07FA305.md): Piper PA-32R-301T · Defiance, OH · Accident · 1 fatal · Field investigation · Final report · Sep 26, 2007 · N8341G · Destroyed
  > The pilot's spatial disorientation when he encountered convective turbulence which resulted in a loss of control. This encounter resulted in an in-flight break up. Contributing to the accident was the convective turbulence in the clouds.
- [NTSB LAX07CA287](https://openairdocs.org/ntsb/LAX07CA287.md): Cessna 150L · Woodland, WA · Accident · No injuries · Data collection · Final report · Sep 23, 2007 · N19298 · Substantial damage
  > a partial loss of engine power due to carburetor icing conditions.
- [NTSB DEN08IA030](https://openairdocs.org/ntsb/DEN08IA030.md): Beech C90A · Emporia, KS · Incident · No injuries · Incident investigation · Final report · Sep 22, 2007 · N871KS · No damage
  > The improper installation of the right elevator trim tab attachment hardware by maintenance personnel which resulted in excessive wear, fatigue, and the failure of the push-pull tube.
- [NTSB ATL07LA129](https://openairdocs.org/ntsb/ATL07LA129.md): Kolb MK II · Sweetwater, TN · Accident · 1 fatal · Limited investigation · Final report · Sep 22, 2007 · N43046 · Destroyed
  > The pilot's failure to maintain control of the airplane during climb.
- [NTSB MIA07FA154](https://openairdocs.org/ntsb/MIA07FA154.md): North American Navion · Clayton, NC · Accident · 1 fatal · Field investigation · Final report · Sep 21, 2007 · N8844H · Destroyed
  > The pilot's intentional abrupt maneuver during low altitude cruise flight to avoid obstructions ahead, resulting in an in-flight collision with terrain and a building. Contributing to the accident were the failure of the pilot to obtain a preflight weather…
- [NTSB ANC07LA104](https://openairdocs.org/ntsb/ANC07LA104.md): Cessna U206 · McGrath, AK · Accident · Minor injuries · Limited investigation · Final report · Sep 21, 2007 · N8030Z · Substantial damage
  > A separation of the engine connecting rod and engine cylinder due to the loss of a connecting rod nut that was stripped from the rod bolt.
- [NTSB NYC07LA237](https://openairdocs.org/ntsb/NYC07LA237.md): Ortiz G/Saint J RV-10 · Hiram, GA · Accident · No injuries · Limited investigation · Final report · Sep 19, 2007 · N416EC · Substantial damage
  > Separation of the passenger cabin door during cruise flight for undetermined reasons.
- [NTSB MIA07LA152](https://openairdocs.org/ntsb/MIA07LA152.md): Piper PA-30 · Milton, FL · Accident · No injuries · Limited investigation · Final report · Sep 17, 2007 · N8751Y · Substantial damage
  > The failure of the pilot to attain the proper touchdown point during the precautionary landing resulting in the on-ground collision with fence posts.
- [NTSB DFW07CA202](https://openairdocs.org/ntsb/DFW07CA202.md): Piper PA-24-180 · Taylor, TX · Accident · No injuries · Data collection · Final report · Sep 17, 2007 · N6017P · Substantial damage
  > The loss of engine power due to fuel exhaustion as result of the pilot's inadequate in-flight planning/decision. Contributing factors were the lack of suitable terrain for the forced landing and the dark night.
- [NTSB DFW07CA201](https://openairdocs.org/ntsb/DFW07CA201.md): Ultra Magic M-56C · Bossier City, LA · Accident · Serious injuries · Data collection · Final report · Sep 16, 2007 · N105WB · Minor damage
  > The pilot's failure to arrest an excessive descent rate prior to ground contact, which resulted in a hard landing.
- [NTSB NYC07LA245](https://openairdocs.org/ntsb/NYC07LA245.md): Beech C-90 · Bloomingdale, GA · Accident · No injuries · Limited investigation · Final report · Sep 15, 2007 · N515KJ · Substantial damage
  > A loss of engine power due to fuel exhaustion as a result of the pilot's improper preflight planning and preparation. Contributing to the accident was the pilot's reliance on inaccurate fuel gauges.
- [NTSB NYC07FA228](https://openairdocs.org/ntsb/NYC07FA228.md): Bellanca 17-30A · Dallas, GA · Accident · 1 fatal · Field investigation · Final report · Sep 15, 2007 · N8260R · Substantial damage
  > The pilot's inadequate preflight inspection, which resulted in a loss of engine power during cruise due to fuel contamination.
- [NTSB LAX07LA274](https://openairdocs.org/ntsb/LAX07LA274.md): Robinson R22 Beta · El Monte, CA · Accident · No injuries · Limited investigation · Final report · Sep 14, 2007 · N877HF · Substantial damage
  > a failure of the main rotor drive system V-belts due to damage sustained when the alternator drive belt failed and pieces of that belt got between the main drive belts and their associated pulleys. A contributing factor was the uneven terrain encountered in…
- [NTSB NYC07FA226](https://openairdocs.org/ntsb/NYC07FA226.md): Piper PA-32R-301 · Whitfield, AL · Accident · 1 fatal · Field investigation · Final report · Sep 13, 2007 · N109PA · Destroyed
  > The pilot’s intentional flight into known thunderstorms.
- [NTSB LAX07FA272](https://openairdocs.org/ntsb/LAX07FA272.md): Grumman American AA-5 · Joshua Tree, CA · Accident · 1 fatal · Field investigation · Final report · Sep 12, 2007 · N119G · Substantial damage
  > The pilot's failure to maintain terrain clearance during descent. Contributing to the accident were dark night conditions and mountainous terrain.
- [NTSB DFW07LA197](https://openairdocs.org/ntsb/DFW07LA197.md): Robinson Helicopter R22 Beta · Fort Stockton, TX · Accident · Serious injuries · Limited investigation · Final report · Sep 12, 2007 · N993KC · Substantial damage
  > The failure of the v-belt drive system to the main rotor for undetermined reasons. Contributing to the accident was insufficient altitude to perform a successful autorotation.
- [NTSB DFW07FA198](https://openairdocs.org/ntsb/DFW07FA198.md): Fairchild Hiller FH-1100 · Hosston, LA · Accident · 2 fatal · Field investigation · Final report · Sep 12, 2007 · N313BG · Destroyed
  > The in-flight separation of the main rotor mast while in cruise flight following a mast bumping event. The reason for the mast bumping event was not determined.

Next page: https://openairdocs.org/ntsb-phases/400/cases.md?page=117

## 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 = 400)
ORDER BY c."eventDate" DESC, c."ntsbNumber" DESC
```

This list as a web page: https://openairdocs.org/ntsb-phases/400/cases?page=116

---
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.
