# NTSB investigations, CA: Landing

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 1 of 117 · 5,815 cases

## Latest cases

- [NTSB WPR27LA026](https://openairdocs.org/ntsb/WPR27LA026.md): Cessna 182N · Santa Maria, CA · Accident · No injuries · Class 3 · Limited · Investigation open · Oct 28, 2026 · N442RA
- [NTSB WPR27LA023](https://openairdocs.org/ntsb/WPR27LA023.md): Cessna 120 · Death Valley, CA · Accident · Minor injuries · Limited investigation · Investigation open · Oct 24, 2026 · N89885
- [NTSB WPR27LA020](https://openairdocs.org/ntsb/WPR27LA020.md): Maule M-7-260 · Sea Ranch, CA · Accident · No injuries · Class 3 · Limited · Preliminary report · Oct 17, 2026 · N3217V · Substantial damage
  > On October 17, 2026, about 1030 Pacific daylight time, a Maule M-7-260, N3217V, was substantially damaged during a runway excursion while landing at The Sea Ranch Airport (CA51), Sea Ranch, California. The airplane was operated as a Title 14 Code of Federal…
- [NTSB WPR27LA003](https://openairdocs.org/ntsb/WPR27LA003.md): Maule M-5-235C · Agua Dulce, CA · Accident · No injuries · Class 4 · Limited · Investigation open · Oct 3, 2026 · N56328 · Substantial damage
- [NTSB WPR27LA010](https://openairdocs.org/ntsb/WPR27LA010.md): Cessna A185F · Madera, CA · Accident · No injuries · Class 4 · Limited · Investigation open · Oct 1, 2026 · N185TT · Substantial damage
- [NTSB WPR27LA009](https://openairdocs.org/ntsb/WPR27LA009.md): Cessna 172N · Knights Landing, CA · Accident · Serious injuries · Limited investigation · Investigation open · Oct 1, 2026 · N75513
- [NTSB WPR26LA349](https://openairdocs.org/ntsb/WPR26LA349.md): Cameron Balloons US A-400 · Angwin, CA · Accident · Minor injuries · Class 4 · Limited · Investigation open · Sep 19, 2026 · N65573 · Substantial damage
- [NTSB WPR26LA340](https://openairdocs.org/ntsb/WPR26LA340.md): Cessna P210N · San Luis Obispo, CA · Accident · No injuries · Class 3 · Limited · Preliminary report · Sep 13, 2026 · N4617W · Substantial damage
  > On September 13, 2026, about 1515 Pacific daylight time, a Cessna P210N airplane, N4617W, was substantially damaged when it was involved in an accident near San Luis Obispo, California. The pilot, pilot-rated-passenger, and a passenger were not injured. The…
- [NTSB WPR26LA332](https://openairdocs.org/ntsb/WPR26LA332.md): Cessna 152 · Carlsbad, CA · Accident · No injuries · Class 4 · Limited · Investigation open · Sep 4, 2026 · N5447L · Substantial damage
- [NTSB WPR26LA326](https://openairdocs.org/ntsb/WPR26LA326.md): Cessna 560XL · Porterville, CA · Accident · Minor injuries · Class 3 · Limited · Preliminary report · Sep 1, 2026 · N562JL · Substantial damage
  > On September 1, 2026, about 1142 Pacific daylight time, a Cessna 560XL airplane, N562JL, was substantially damaged when it was involved in an accident near Porterville, California. The two pilots sustained minor injuries, and the four passengers were not…
- [NTSB WPR26LA318](https://openairdocs.org/ntsb/WPR26LA318.md): Cessna 170B · South Lake Tahoe, CA · Accident · No injuries · Class 4 · Limited · Investigation open · Aug 26, 2026 · N2285D · Substantial damage
- [NTSB WPR26LA303](https://openairdocs.org/ntsb/WPR26LA303.md): Cessna 172L · Upland, CA · Accident · No injuries · Class 4 · Limited · Investigation open · Aug 16, 2026 · N7526G · Substantial damage
- [NTSB WPR26LA293](https://openairdocs.org/ntsb/WPR26LA293.md): P Z L -Warszawa-Cnpsl PZL-104 Wilga 35A · Ukiah, CA · Accident · No injuries · Class 4 · Limited · Investigation open · Aug 7, 2026 · N113AS · Substantial damage
- [NTSB WPR26LA260](https://openairdocs.org/ntsb/WPR26LA260.md): Bellanca 8KCAB · Auburn, CA · Accident · Minor injuries · Class 4 · Limited · Investigation open · Jul 14, 2026 · N5051W · Substantial damage
- [NTSB WPR26LA256](https://openairdocs.org/ntsb/WPR26LA256.md): Canadair CF-5D · Mojave, CA · Accident · No injuries · Class 3 · Limited · Preliminary report · Jul 10, 2026 · N845PS · Substantial damage
  > On July 10, 2026, about 1103 Pacific daylight time, a Canadair CF-5D, N845PS, was substantially damaged when it was involved in an accident near Mojave, California. The two pilots onboard were not injured. The airplane was operated as a Title 14 Code of…
- [NTSB WPR26LA246](https://openairdocs.org/ntsb/WPR26LA246.md): Schweizer SGS 2-33A · Lake Elsinore, CA · Accident · Serious injuries · Class 4 · Limited · Final report · Jul 5, 2026 · N5790S · Substantial damage
  > The student pilot’s failure to maintain a proper glidepath, which resulted in a long landing and collision with a person on the ground.
- [NTSB WPR26LA239](https://openairdocs.org/ntsb/WPR26LA239.md): Cessna 170A · El Cajon, CA · Accident · No injuries · Class 4 · Limited · Final report · Jun 27, 2026 · N1607D · Substantial damage
  > The pilot's failure to maintain directional control during landing with a right crosswind,.
- [NTSB WPR26LA226](https://openairdocs.org/ntsb/WPR26LA226.md): Cessna TR182 · Los Angeles, CA · Accident · No injuries · Class 3 · Limited · Preliminary report · Jun 21, 2026 · N2194S · Substantial damage
  > On June 21, 2026, about 1255 Pacific daylight time, a Cessna TR182, N2194S, sustained substantial damage when it was involved in an accident near Van Nuys, California. The pilot was not injured. The airplane was operated as a Title 14 Code of Federal…
- [NTSB WPR26LA222](https://openairdocs.org/ntsb/WPR26LA222.md): Cessna 172S · Death Valley, CA · Accident · Minor injuries · Class 4 · Limited · Final report · Jun 17, 2026 · N96FA · Substantial damage
  > The pilot’s failure to maintain airspeed and encounter with a tailwind while landing on a rough runway, which resulted in a runway overrun and subsequent nose over.
- [NTSB WPR26LA228](https://openairdocs.org/ntsb/WPR26LA228.md): Lancair Legacy 2000 · Los Angeles, CA · Accident · Minor injuries · Class 3 · Limited · Preliminary report · Jun 16, 2026 · N84BZ · Substantial damage
  > On June 16, 2026, about 0906 Pacific daylight time, an experimental amateur built Lancair Legacy 2000, N84BZ, was substantially damaged when it was involved in an accident near Los Angeles, California. The pilot sustained minor injuries. The airplane was…
- [NTSB WPR26LA194](https://openairdocs.org/ntsb/WPR26LA194.md): Autogyro Cavalon · Palo Alto, CA · Accident · Minor injuries · Class 4 · Limited · Final report · May 13, 2026 · N40CT · Substantial damage
  > The pilot’s failure to maintain directional control during the landing roll, in gusting crosswind conditions.
- [NTSB WPR26LA182](https://openairdocs.org/ntsb/WPR26LA182.md): American AA-5 · Jurupa Valley, CA · Accident · No injuries · Class 4 · Limited · Final report · May 12, 2026 · N5832L · Substantial damage
  > The pilot’s decision to land at night on a runway without illuminated runway lights. Contributing to the accident was the pilot’s failure to review NOTAMs for a nightly airport closure.
- [NTSB WPR26LA171](https://openairdocs.org/ntsb/WPR26LA171.md): Cessna 210 · Redding, CA · Accident · No injuries · Class 4 · Limited · Final report · Apr 25, 2026 · N6130F · Substantial damage
  > The pilot’s failure to extend the landing gear before landing due to distraction and his failure to conduct the before landing checklist.
- [NTSB WPR26LA169](https://openairdocs.org/ntsb/WPR26LA169.md): Cessna 172N · Carlsbad, CA · Accident · No injuries · Class 4 · Limited · Final report · Apr 22, 2026 · N733WT · Substantial damage
  > The student pilot’s failure to maintain airplane control while landing in gusting crosswind conditions.
- [NTSB WPR26LA143](https://openairdocs.org/ntsb/WPR26LA143.md): Paul D Cannon Kitfox Light Squared · Lincoln, CA · Accident · No injuries · Class 4 · Limited · Final report · Mar 27, 2026 · N11446 · Substantial damage
  > The pilot's failure to properly flare the airplane during landing, which resulted in a hard landing and separation of the main landing gear. Contributing to the accident was the improper installation and over torquing of the landing gear attachment hardware,…
- [NTSB WPR26LA148](https://openairdocs.org/ntsb/WPR26LA148.md): Quicksilver GT-400 · Chula Vista, CA · Accident · No injuries · Class 4 · Limited · Final report · Mar 23, 2026 · N120LF · Substantial damage
  > The pilot’s improper landing flare, which resulted in a bounced landing and a subsequent runway excursion.
- [NTSB WPR26LA135](https://openairdocs.org/ntsb/WPR26LA135.md): Cessna 195 · Big Bear, CA · Accident · No injuries · Class 4 · Limited · Final report · Mar 20, 2026 · N9368A · Substantial damage
  > The pilot's failure to maintain directional control during the landing roll with a quartering tailwind.
- [NTSB WPR26LA124](https://openairdocs.org/ntsb/WPR26LA124.md): Cessna T210 · Upland, CA · Accident · Minor injuries · Class 4 · Limited · Final report · Mar 11, 2026 · N29138 · Substantial damage
  > The pilot’s improper approach, which resulted in a long landing, runway excursion, and a nose over.
- [NTSB DCA26LA184](https://openairdocs.org/ntsb/DCA26LA184.md): Boeing 787-9 · Los Angeles, CA · Incident · No injuries · Class 3 · Limited · Preliminary report · Mar 2, 2026 · N24972 · No damage
  > On March 2, 2026, at 1100 Pacific Standard Time, United Airlines flight 2127, a Boeing 787-9, registration N24972, powered by two General Electric GEnx™-1B76A/P2 turbofan engines, experienced a No. 1 (left) engine surge during climb from Los Angeles…
- [NTSB WPR26LA107](https://openairdocs.org/ntsb/WPR26LA107.md): Piper PA-30 · Big Bear, CA · Accident · No injuries · Class 3 · Limited · Preliminary report · Feb 24, 2026 · N811LE · Substantial damage
  > On February 23, 2026, at 1800 Pacific standard time, a Piper PA-30, N811LE, was substantially damaged when it was involved in an accident near Big Bear, California. The pilot and passenger were not injured. The airplane was operated as a 14 Code of Federal…
- [NTSB WPR26LA106](https://openairdocs.org/ntsb/WPR26LA106.md): Cessna 120 · Kneeland, CA · Accident · No injuries · Class 4 · Limited · Final report · Feb 20, 2026 · N72904 · Substantial damage
  > The pilot’s failure to maintain airplane control during landing roll on a snow-covered runway.
- [NTSB DCA26LA115](https://openairdocs.org/ntsb/DCA26LA115.md): Airbus A321-271NX · San Francisco, CA · Accident · No injuries · Class 4 · Limited · Final report · Feb 9, 2026 · N2188J · Substantial damage
  > The first officer’s excessive aft sidestick input combined with decaying airspeed during initiation of a go-around, resulting in an increase in the airplane pitch attitude and subsequent lower fuselage contacting the runway.
- [NTSB DCA26LA097](https://openairdocs.org/ntsb/DCA26LA097.md): Boeing 767 · San Bernardino, CA · Accident · No injuries · Class 4 · Limited · Final report · Jan 16, 2026 · N443AZ · Substantial damage
  > The flight crew’s improper derotation which resulted in a hard nose gear touchdown. Contributing to the accident was the captain and first officer’s lack of crew resource management related to communication about pitch control inputs. Contributing to the…
- [NTSB WPR26LA066](https://openairdocs.org/ntsb/WPR26LA066.md): Boeing PT-13D · El Cajon, CA · Accident · No injuries · Class 4 · Limited · Final report · Dec 19, 2025 · N68830 · Substantial damage
  > The pilot's failure to maintain directional control during the landing roll.
- [NTSB WPR26LA044](https://openairdocs.org/ntsb/WPR26LA044.md): Luscombe 8A · Fresno, CA · Accident · No injuries · Class 4 · Limited · Final report · Nov 12, 2025 · N1264K · Substantial damage
  > The pilot's improper application of left brake pedal during the landing roll, which resulted in a loss of directional control and a ground loop.
- [NTSB WPR26LA047](https://openairdocs.org/ntsb/WPR26LA047.md): Cessna 172S · Lancaster, CA · Accident · No injuries · Class 3 · Limited · Preliminary report · Nov 9, 2025 · N5199J · Substantial damage
  > On November 9, 2025, about 1205 Pacific daylight time, a Cessna 172S, N5199J, sustained substantial damage when it was involved in an accident near Lancaster, California. The pilot and passengers were not injured. The airplane was operated as a Title 14 Code…
- [NTSB CEN26FA015](https://openairdocs.org/ntsb/CEN26FA015.md): Bell 222 · Huntington Beach, CA · Accident · Serious injuries · Class 3 · Field · Preliminary report · Oct 11, 2025 · N222EX · Substantial damage
  > On October 11, 2025, at 1401 Pacific daylight time, a Bell 222 helicopter, N222EX, was substantially damaged when it was involved in an accident near Huntington Beach, California. The pilot and passenger received serious injuries. One person on the ground…
- [NTSB WPR25LA304](https://openairdocs.org/ntsb/WPR25LA304.md): Cessna 182A · Avalon, CA · Accident · No injuries · Class 4 · Limited · Final report · Sep 29, 2025 · N2079G · Substantial damage
  > The pilot’s decision to land with a tailwind and a downslope to the runway.
- [NTSB ANC25LA113](https://openairdocs.org/ntsb/ANC25LA113.md): Cessna 140A · Los Banos, CA · Accident · No injuries · Class 4 · Limited · Final report · Sep 27, 2025 · N9410A · Substantial damage
  > The pilot’s failure to maintain directional control during the landing roll with a crosswind, resulting in a ground loop and nose over.
- [NTSB WPR25LA282](https://openairdocs.org/ntsb/WPR25LA282.md): Cessna P210N · Victorville, CA · Accident · No injuries · Class 3 · Limited · Preliminary report · Sep 13, 2025 · N25WD · Substantial damage
  > On September 13, 2025, about 1300 Pacific daylight time, a Cessna P210N airplane, N25WD, was substantially damaged when it was involved in an accident near Victorville, California. The pilot and flight instructor were not injured. The airplane was operated as…
- [NTSB WPR25LA300](https://openairdocs.org/ntsb/WPR25LA300.md): Aeronca 7AC · Firebaugh, CA · Accident · No injuries · Class 4 · Limited · Final report · Sep 1, 2025 · N82003 · Substantial damage
  > A loss of directional control during landing due to the partial separation of the right main landing gear oleo strut from a failed weld.
- [NTSB WPR25LA258](https://openairdocs.org/ntsb/WPR25LA258.md): Boeing B75N1 · Vacaville, CA · Accident · No injuries · Class 4 · Limited · Final report · Aug 19, 2025 · N14GC · Substantial damage
  > The pilot's failure to maintain directional control during the landing roll with a quartering tailwind.
- [NTSB WPR25LA255](https://openairdocs.org/ntsb/WPR25LA255.md): Cessna 180K · Anza, CA · Accident · No injuries · Class 3 · Limited · Preliminary report · Aug 14, 2025 · N2691K · Substantial damage
  > On August 14, 2025, about 0830 Pacific daylight time, a Cessna 180K, N2691K, was substantially damaged when it was involved in an accident near Anza, California. The pilot was not injured. The airplane was operated as a Title 14 Code of Federal Regulations…
- [NTSB WPR25LA266](https://openairdocs.org/ntsb/WPR25LA266.md): Cessna TR182 · San Diego, CA · Accident · No injuries · Class 3 · Limited · Preliminary report · Aug 12, 2025 · N619MW · Substantial damage
  > On August 12, 2025, about 1330 Pacific daylight time, Cessna TR182 airplane, N619MW, was substantially damaged when it was involved in an accident near San Diego, California. The pilot and passenger were not injured. The airplane was operated as a Title 14…
- [NTSB WPR25LA250](https://openairdocs.org/ntsb/WPR25LA250.md): De Havilland DHC-6-300 · San Celmente, CA · Accident · No injuries · Class 3 · Limited · Preliminary report · Aug 11, 2025 · N344CS · Substantial damage
  > On August 11, 2025, at 1130 Pacific daylight time, a De Havilland DHC-6-300, N344CS, was substantially damaged when it was involved in an accident at San Clemente Island, California. The 2 pilots and 16 passengers were not injured. The airplane was operated…
- [NTSB WPR25LA237](https://openairdocs.org/ntsb/WPR25LA237.md): Cessna R182 · Thermal, CA · Accident · No injuries · Class 4 · Limited · Final report · Jul 31, 2025 · N2658C · Substantial damage
  > The pilot's failure to extend the landing gear during landing. Contributing to the accident was the pilot’s failure to use a pre-landing checklist.
- [NTSB WPR25LA219](https://openairdocs.org/ntsb/WPR25LA219.md): Cirrus Design SR22 · Hollister, CA · Accident · Serious injuries · Class 4 · Limited · Final report · Jul 19, 2025 · N551SG · 2 aircraft · Substantial damage
  > The departing pilot’s failure to see and avoid the landing airplane during the takeoff, which resulted in a mid-air collision.
- [NTSB WPR25LA185](https://openairdocs.org/ntsb/WPR25LA185.md): Silvaire Luscombe 8A · San Andreas, CA · Accident · No injuries · Class 4 · Limited · Final report · Jun 20, 2025 · N28545 · Substantial damage
  > The pilot’s loss of directional control during landing roll following an encounter with a dust devil.
- [NTSB ANC25LA054](https://openairdocs.org/ntsb/ANC25LA054.md): Cessna TR182 · Modesto, CA · Accident · No injuries · Class 4 · Limited · Final report · Jun 14, 2025 · N4909T · Substantial damage
  > The pilot’s failure to properly configure the airplane for landing.
- [NTSB ANC25LA048](https://openairdocs.org/ntsb/ANC25LA048.md): Czech Sport Aircraft A S Sportcruiser · Mojave, CA · Accident · No injuries · Class 4 · Limited · Final report · Jun 8, 2025 · N724SC · Substantial damage
  > The pilot’s failure to maintain directional control during landing roll.

Next page: https://openairdocs.org/ntsb-phases/550/cases.md?state=CA&page=2

## 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."eventStateOrRegion" = 'CA' AND c."eventCountry" = 'USA'
  AND c."mKey" IN (SELECT case_mkey FROM case_phases WHERE main = 550)
ORDER BY c."eventDate" DESC, c."ntsbNumber" DESC
```

This list as a web page: https://openairdocs.org/ntsb-phases/550/cases?state=CA

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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.
