# NTSB ERA18MA099: American Eurocopter AS350B2, N350LH, New York, NY, March 11, 2018

- Type: NTSB accident investigation
- Classification: Accident · Fatal · Class 1 · Major · Final report
- Date: March 11, 2018, 19:08 local (23:08 UTC)
- Place: New York, NY
- Coordinates: 40.775554, -73.940002
- Nearby events: https://openairdocs.org/map.md?lat=40.7756&lon=-73.9400&mi=10
- Phase of flight: [Prior to flight](https://openairdocs.org/ntsb-phases/100) (OpenAirDocs' grouping)
- Defining event: [Prior to flight: Miscellaneous/other](https://openairdocs.org/ntsb-events/900)
- Highest injury: Fatal
- Injuries: 5 fatal, 1 minor
- Status: Completed, report January 21, 2020
- Report: Board-adopted at Board Meeting
- Investigation class: Class 1
- NTSB office: Eastern Region Aviation
- Parties: EuroTec Canada Ltd., Liberty Helicopters Inc., Airbus Helicopters, TSBC, Transport Canada, EASA, FAA / AVP-100, SAFRAN Helicopter Engines, NYONair, Dart Aerospace, BEA
- Safety recommendations: Yes
- NTSB case key (mKey): 96850
- NTSB case page: https://www.ntsb.gov/investigations/Pages/ERA18MA099.aspx
- NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/96850/pdf
- Board report AAR1904 (PDF): https://www.ntsb.gov/investigations/AccidentReports/Reports/AAR1904.pdf
- NTSB docket: https://data.ntsb.gov/Docket?ProjectID=96850
- Page: https://openairdocs.org/ntsb/ERA18MA099

## Probable cause

Liberty Helicopters Inc.'s use of a NYONair-provided passenger harness/tether system, which caught on and activated the floor-mounted engine fuel shutoff lever and resulted in the in-flight loss of engine power and the subsequent ditching. Contributing to this accident were (1) Liberty's and NYONair's deficient safety management, which did not adequately mitigate foreseeable risks associated with the harness/tether system interfering with the floor-mounted controls and hindering passenger egress; (2) Liberty allowing NYONair to influence the operational control of Liberty's FlyNYON flights; and (3) the Federal Aviation Administration's inadequate oversight of Title 14 Code of Federal Regulations Part 91 revenue passenger-carrying operations. Contributing to the severity of the accident were (1) the rapid capsizing of the helicopter due to partial inflation of the emergency flotation system and (2) Liberty and NYONair's use of the harness/tether system that hindered passenger egress.

## Findings

NTSB's coded findings; those marked are part of the probable cause.

- [Equipment/furnishings: flight compartment equipment](https://openairdocs.org/ntsb-findings/01022510): Aircraft › Aircraft systems · Design (probable cause); cases with it: [American Eurocopter AS350B2, 1 case](https://openairdocs.org/ntsb-findings/01022510/cases.md?model=1145100), [All aircraft, 37 cases](https://openairdocs.org/ntsb-findings/01022510/cases.md)
- [Fuel system: fuel selector/shutoff valve](https://openairdocs.org/ntsb-findings/01022823): Aircraft › Aircraft systems · Unintentional use/operation (probable cause); cases with it: [American Eurocopter AS350B2, 1 case](https://openairdocs.org/ntsb-findings/01022823/cases.md?model=1145100), [All aircraft, 176 cases](https://openairdocs.org/ntsb-findings/01022823/cases.md)
- [Engine (turbine/turboprop)](https://openairdocs.org/ntsb-findings/01057200): Aircraft › Aircraft power plant · Inoperative (probable cause); cases with it: [American Eurocopter AS350B2, 1 case](https://openairdocs.org/ntsb-findings/01057200/cases.md?model=1145100), [All aircraft, 67 cases](https://openairdocs.org/ntsb-findings/01057200/cases.md)
- [Culture: safety](https://openairdocs.org/ntsb-findings/04024010): Organizational issues › Management · Operator (probable cause); cases with it: [American Eurocopter AS350B2, 1 case](https://openairdocs.org/ntsb-findings/04024010/cases.md?model=1145100), [All aircraft, 11 cases](https://openairdocs.org/ntsb-findings/04024010/cases.md)
- [Safety programs: adherence to safety program](https://openairdocs.org/ntsb-findings/04035020): Organizational issues › Support/oversight/monitoring · Operator (probable cause); cases with it: [American Eurocopter AS350B2, 1 case](https://openairdocs.org/ntsb-findings/04035020/cases.md?model=1145100), [All aircraft, 5 cases](https://openairdocs.org/ntsb-findings/04035020/cases.md)
- [Oversight: oversight of operation](https://openairdocs.org/ntsb-findings/04032015): Organizational issues › Support/oversight/monitoring · Operator (probable cause); cases with it: [American Eurocopter AS350B2, 1 case](https://openairdocs.org/ntsb-findings/04032015/cases.md?model=1145100), [All aircraft, 61 cases](https://openairdocs.org/ntsb-findings/04032015/cases.md)
- [Culture: safety](https://openairdocs.org/ntsb-findings/04024010): Organizational issues › Management · Other institution/organization (probable cause); cases with it: [American Eurocopter AS350B2, 1 case](https://openairdocs.org/ntsb-findings/04024010/cases.md?model=1145100), [All aircraft, 11 cases](https://openairdocs.org/ntsb-findings/04024010/cases.md)
- [Safety programs: availability of safety program](https://openairdocs.org/ntsb-findings/04035010): Organizational issues › Support/oversight/monitoring · Other institution/organization (probable cause); cases with it: [American Eurocopter AS350B2, 1 case](https://openairdocs.org/ntsb-findings/04035010/cases.md?model=1145100), [All aircraft, 4 cases](https://openairdocs.org/ntsb-findings/04035010/cases.md)
- [Oversight: oversight of operation](https://openairdocs.org/ntsb-findings/04032015): Organizational issues › Support/oversight/monitoring · FAA/Regulator (probable cause); cases with it: [American Eurocopter AS350B2, 1 case](https://openairdocs.org/ntsb-findings/04032015/cases.md?model=1145100), [All aircraft, 61 cases](https://openairdocs.org/ntsb-findings/04032015/cases.md)
- [Enforcement: regulatory requirements](https://openairdocs.org/ntsb-findings/04034020): Organizational issues › Support/oversight/monitoring · FAA/Regulator (probable cause); cases with it: [American Eurocopter AS350B2, 1 case](https://openairdocs.org/ntsb-findings/04034020/cases.md?model=1145100), [All aircraft, 5 cases](https://openairdocs.org/ntsb-findings/04034020/cases.md)
- [Policy/procedure: adequacy of policy/proc](https://openairdocs.org/ntsb-findings/04021015): Organizational issues › Management · FAA/Regulator (probable cause); cases with it: [American Eurocopter AS350B2, 1 case](https://openairdocs.org/ntsb-findings/04021015/cases.md?model=1145100), [All aircraft, 106 cases](https://openairdocs.org/ntsb-findings/04021015/cases.md)
- [Landing gear system: emergency floatation section](https://openairdocs.org/ntsb-findings/01023212): Aircraft › Aircraft systems · Design (probable cause); cases with it: [American Eurocopter AS350B2, 1 case](https://openairdocs.org/ntsb-findings/01023212/cases.md?model=1145100), [All aircraft, 1 case](https://openairdocs.org/ntsb-findings/01023212/cases.md)
- [Equipment/furnishings: passenger compartment equip](https://openairdocs.org/ntsb-findings/01022520): Aircraft › Aircraft systems · Unnecessary use/operation (probable cause); cases with it: [American Eurocopter AS350B2, 1 case](https://openairdocs.org/ntsb-findings/01022520/cases.md?model=1145100), [All aircraft, 24 cases](https://openairdocs.org/ntsb-findings/01022520/cases.md)

## Sequence of events

The events NTSB coded, in order, by phase of flight. The defining event best describes what happened.

- [Prior to flight: Miscellaneous/other](https://openairdocs.org/ntsb-events/900) (defining event); cases with it: [American Eurocopter AS350B2, 1 case](https://openairdocs.org/ntsb-events/900/sequence.md?model=1145100), [All aircraft, 1,556 cases](https://openairdocs.org/ntsb-events/900/sequence.md)
- [Maneuvering: Fuel starvation](https://openairdocs.org/ntsb-events/191); cases with it: [American Eurocopter AS350B2, 1 case](https://openairdocs.org/ntsb-events/191/sequence.md?model=1145100), [All aircraft, 733 cases](https://openairdocs.org/ntsb-events/191/sequence.md)
- [Maneuvering: Loss of engine power (total)](https://openairdocs.org/ntsb-events/341); cases with it: [American Eurocopter AS350B2, 2 cases](https://openairdocs.org/ntsb-events/341/sequence.md?model=1145100), [All aircraft, 3,820 cases](https://openairdocs.org/ntsb-events/341/sequence.md)
- [Emergency descent: Attempted remediation/recovery](https://openairdocs.org/ntsb-events/060); cases with it: [American Eurocopter AS350B2, 1 case](https://openairdocs.org/ntsb-events/060/sequence.md?model=1145100), [All aircraft, 1,422 cases](https://openairdocs.org/ntsb-events/060/sequence.md)
- [Emergency descent: Off-field or emergency landing](https://openairdocs.org/ntsb-events/440); cases with it: [American Eurocopter AS350B2, 2 cases](https://openairdocs.org/ntsb-events/440/sequence.md?model=1145100), [All aircraft, 3,365 cases](https://openairdocs.org/ntsb-events/440/sequence.md)
- [Landing: Roll over](https://openairdocs.org/ntsb-events/097); cases with it: [American Eurocopter AS350B2, 1 case](https://openairdocs.org/ntsb-events/097/sequence.md?model=1145100), [All aircraft, 261 cases](https://openairdocs.org/ntsb-events/097/sequence.md)
- [After landing: Evacuation](https://openairdocs.org/ntsb-events/460); cases with it: [American Eurocopter AS350B2, 1 case](https://openairdocs.org/ntsb-events/460/sequence.md?model=1145100), [All aircraft, 103 cases](https://openairdocs.org/ntsb-events/460/sequence.md)
- [After landing: Miscellaneous/other](https://openairdocs.org/ntsb-events/900); cases with it: [American Eurocopter AS350B2, 1 case](https://openairdocs.org/ntsb-events/900/sequence.md?model=1145100), [All aircraft, 1,556 cases](https://openairdocs.org/ntsb-events/900/sequence.md)

## Analysis

The Safety Board's full report is available at http://www.ntsb.gov/investigations/AccidentReports/Pages/aviation.aspx. The Aircraft Accident Report number is NTSB/AAR-19/04. On March 11, 2018, about 1908 eastern daylight time, an Airbus Helicopters AS350 B2, N350LH, lost engine power during cruise flight, and the pilot performed an autorotative descent and ditching on the East River in New York, New York. The pilot sustained minor injuries, the five passengers drowned, and the helicopter was substantially damaged. The FlyNYON-branded flight was operated by Liberty Helicopters Inc. (Liberty), per a contractual agreement with NYONair; both companies considered the flight to be an aerial photography flight operated under the provisions of Title 14 Code of Federal Regulations (CFR) Part 91. (During this accident investigation, the Federal Aviation Administration determined that Liberty operated the flight as a nonstop commercial air tour under 14 CFR Part 91.) Visual flight rules weather conditions prevailed, and no flight plan was filed for the intended 30-minute local flight, which departed from Helo Kearny Heliport, Kearny, New Jersey, about 1850.

## Factual narrative

The Safety Board's full report is available at http://www.ntsb.gov/investigations/AccidentReports/Pages/aviation.aspx. The Aircraft Accident Report number is NTSB/AAR-19/04. On March 11, 2018, about 1908 eastern daylight time, an Airbus Helicopters AS350 B2, N350LH, lost engine power during cruise flight, and the pilot performed an autorotative descent and ditching on the East River in New York, New York. The pilot sustained minor injuries, the five passengers drowned, and the helicopter was substantially damaged. The FlyNYON-branded flight was operated by Liberty Helicopters Inc. (Liberty), per a contractual agreement with NYONair; both companies considered the flight to be an aerial photography flight operated under the provisions of Title 14 Code of Federal Regulations (CFR) Part 91. (During this accident investigation, the Federal Aviation Administration determined that Liberty operated the flight as a nonstop commercial air tour under 14 CFR Part 91.) Visual flight rules weather conditions prevailed, and no flight plan was filed for the intended 30-minute local flight, which departed from Helo Kearny Heliport, Kearny, New Jersey, about 1850.

## Aircraft

- Registration: [N350LH](https://openairdocs.org/deregistered/N350LH-2020-02-03), registration cancelled 2020-02-03, S/N 7654, built 2013 (OpenAirDocs)
- Reported make and model: AMERICAN EUROCOPTER CORP AS350B2
- Registry model: [American Eurocopter AS350B2](https://openairdocs.org/model/american-eurocopter-as350b2) (registry code 1145100) (OpenAirDocs)
- Registry engine: [Turbomeca ARRIEL-1D1](https://openairdocs.org/engine/turbomeca-arriel-1d1) (registry code 60053, turbo-shaft) (OpenAirDocs)
- Category: Helicopter
- Serial number: 7654
- Year built: 2013
- Airframe hours: 5510.2
- Engines: Turbomeca Arriel 1D1 712 horsepower turbo shaft
- Damage: Substantial damage
- Flight: Other work use, Part 91
- Operator: Liberty Helicopters Inc
- Registered owner: Meridian Consulting Corp Inc
- Airworthiness certificate: Standard, Normal
- Last inspection: 100 hour, March 6, 2018, 14 hours before
- Departed: 65NJ, KEARNY, NJ
- Destination: 65NJ, KEARNY, NJ
- Flight plan: Company VFR
- Equipment: Satellite tracking device, Video recording device, ADS-B

## Flight crew

As NTSB recorded them. NTSB leaves out names.

- Pilot; age 33; injuries: minor; flight instructor, commercial; instrument ratings: helicopter; medical: class 2, without waivers/limitations; last flight review February 21, 2018; seat: right; restraint: 4-point; toxicology performed; flight hours: 3,100 total, 1,430 in this make and model, 3,020 as pilot in command, 57 in the last 90 days, 33 in the last 30 days, 2 in the last 24 hours

## Weather

- Conditions: Visual (VMC), Dusk
- Wind: 330° at 7 knots
- Visibility: 10 statute miles
- Lowest ceiling: none
- Temperature: 45 °F, dew point 21 °F
- Altimeter: 30.05 inHg
- Observed at: LGA, 3 nm away

## FAA reports on this event (1)

The FAA's own accident and incident reports, matched to the aircraft by N-number and date (OpenAirDocs).

- [Accident 20180311003509A](https://openairdocs.org/incident/20180311003509A), Mar 11, 2018: American Eurocopter Corp AS350B2, New York, NY, Substantial damage, 5 fatal. On March 11, 2018, about 1908 eastern daylight time, an Airbus helicopters AS-350 B2; N350LH, operated by liberty helicopters inc. under the provisions of…

## Docket (79 files)

The files NTSB released with the investigation on September 25, 2019, on NTSB's docket system: https://data.ntsb.gov/Docket?ProjectID=96850.

- Pilot/Operator Aircraft Accident Report, NTSB Form 6120.1 (item 1, .PDF, 851 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=40476007&FileExtension=.PDF&FileName=Pilot%2FOperator%20Aircraft%20Accident%20Report,%20NTSB%20Form%206120.1-Master.PDF
- Operations Group Chairman's Factual Report (item 2, .PDF, 2 photos, 1.7 MB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=40476008&FileExtension=.PDF&FileName=Operations%20Group%20Chairman%27s%20Factual%20Report-Master.PDF
- Operations Attachment 1 - Interview Summaries (item 3, .PDF, 1.6 MB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=40476009&FileExtension=.PDF&FileName=Operations%20Attachment%201%20-%20Interview%20Summaries-Master.PDF
- Operations Attachment 2 - Liberty Chief Pilot Interview (Transcription) (item 4, .PDF, 270 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=40476010&FileExtension=.PDF&FileName=Operations%20Attachment%202%20-%20Liberty%20Chief%20Pilot%20Interview%20(Transcription)-Master.PDF
- Operations Attachment 3 - Police Interview Transcript (item 5, .PDF, 131 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=40476011&FileExtension=.PDF&FileName=Operations%20Attachment%203%20-%20Police%20Interview%20Transcript-Master.PDF
- Operations Attachment 4 - Pilot Training Information (item 6, .PDF, 7.4 MB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=40476012&FileExtension=.PDF&FileName=Operations%20%20Attachment%204%20-%20Pilot%20Training%20Information-Master.PDF
- Operations Attachment 5 - Pilot Duty Logs (item 7, .PDF, 4.8 MB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=40476013&FileExtension=.PDF&FileName=Operations%20Attachment%205%20-%20Pilot%20Duty%20Logs-Master.PDF
- Operations Attachment 6 - Liberty Helicopters Passenger Briefing (item 8, .PDF, 306 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=40476014&FileExtension=.PDF&FileName=Operations%20Attachment%206%20-%20Liberty%20Helicopters%20Passenger%20Briefing-Master.PDF
- Operations Attachment 7 - Liberty Helicopters Emergency Procedures (item 9, .PDF, 659 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=40476015&FileExtension=.PDF&FileName=Operations%20Attachment%207%20-%20Liberty%20Helicopters%20Emergency%20Procedures-Master.PDF
- Operations Attachment 8 - Liberty and NYONair Charter Customer Agreement (item 10, .PDF, 1.0 MB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=40476016&FileExtension=.PDF&FileName=Operations%20Attachment%208%20-%20Liberty%20and%20NYONair%20Charter%20Customer%20Agreement-Master.PDF
- Operations Attachment 9 - Liberty Helicopters LOA (item 11, .PDF, 10.1 MB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=40476017&FileExtension=.PDF&FileName=Operations%20Attachment%209%20-%20Liberty%20Helicopters%20LOA-Master.PDF
- Operations Attachment 10 - Weight and Balance Information (item 12, .PDF, 737 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=40476018&FileExtension=.PDF&FileName=Operations%20Attachment%2010%20-%20Weight%20and%20Balance%20Information-Master.PDF
- Operations Attachment 11 - Loading SOPs (item 13, .PDF, 292 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=40476019&FileExtension=.PDF&FileName=Operations%20Attachment%2011%20-%20Loading%20SOPs-Master.PDF
- Operations Attachment 12 - NYONair Part 91 New Pilot Onboarding Presentation (item 14, .PDF, 164 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=40476020&FileExtension=.PDF&FileName=Operations%20Attachment%2012%20-%20NYONair%20Part%2091%20New%20Pilot%20Onboarding%20Presentation-Master.PDF
- Operations Attachment 13 - FAA Air Tour Operators Document (item 15, .PDF, 155 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=40476021&FileExtension=.PDF&FileName=Operations%20Attachment%2013%20-%20FAA%20Air%20Tour%20Operators%20Document-Master.PDF
- Operations Attachment 14 - FAA Legal Interpretation (item 16, .PDF, 599 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=40476022&FileExtension=.PDF&FileName=Operations%20Attachment%2014%20-%20FAA%20Legal%20Interpretation-Master.PDF
- Operations Attachment 15 - FAA Photos (item 17, .PDF, 5 photos, 893 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=40476134&FileExtension=.PDF&FileName=Operations%20Attachment%2015%20-%20FAA%20Photos-Master.PDF
- Operations Attachment 16 - NYONAir CX Training Manual (item 18, .PDF, 236 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=40476023&FileExtension=.PDF&FileName=Operations%20Attachment%2016%20-%20NYONAir%20CX%20Training%20Manual-Master.PDF
- Operations Attachment 17 - Spidertracks Information (item 19, .PDF, 1.3 MB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=40476024&FileExtension=.PDF&FileName=Operations%20Attachment%2017%20-%20Spidertracks%20Information-Master.PDF
- Operations Attachment 18 - FAA InFO 18003 (item 20, .PDF, 117 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=40476025&FileExtension=.PDF&FileName=Operations%20Attachment%2018%20-%20FAA%20InFO%2018003-Master.PDF
- Operations Attachment 19 - FAA Order 8900.457 (item 21, .PDF, 236 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=40476026&FileExtension=.PDF&FileName=Operations%20Attachment%2019%20-%20FAA%20Order%208900.457-Master.PDF
- Operations Attachment 20 - FAA 8900.1 Reference (item 22, .PDF, 3.7 MB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=40476027&FileExtension=.PDF&FileName=Operations%20Attachment%2020%20-%20FAA%208900.1%20Reference-Master.PDF
- Operations Attachment 21 - Airbus AS-350 VEMD Checklist (item 23, .PDF, 6.5 MB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=40476028&FileExtension=.PDF&FileName=Operations%20Attachment%2021%20-%20Airbus%20AS-350%20VEMD%20Checklist-Master.PDF
- Operations Attachment 22 - NYON Customer Service Pilot Training (item 24, .PDF, 102 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=40476029&FileExtension=.PDF&FileName=Operations%20Attachment%2022%20-%20NYON%20Customer%20Service%20Pilot%20Training-Master.PDF
- Operations Attachment 23 - Liberty NYONair Pilot Safety Meeting Minutes (item 25, .PDF, 1.3 MB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=40476030&FileExtension=.PDF&FileName=Operations%20Attachment%2023%20-%20Liberty%20NYONair%20Pilot%20Safety%20Meeting%20Minutes-Master.PDF
- Operations Attachment 24 - Liberty Training Manual - Extracts (item 26, .PDF): https://data.ntsb.gov/Docket/Document/docBLOB?ID=40476031&FileExtension=.PDF&FileName=Operations%20Attachment%2024%20-%20Liberty%20Training%20Manual%20-%20Extracts-Master.PDF
- Operations Addendum 1 - ARS Invoices (item 27, .PDF, 144 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=40476032&FileExtension=.PDF&FileName=Operations%20Addendum%201%20-%20ARS%20Invoices-Master.PDF
- Operations Addendum 2 - FAA Legal Interpretation Email (item 28, .PDF, 229 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=40476033&FileExtension=.PDF&FileName=Operations%20Addendum%202%20-%20FAA%20Legal%20Interpretation%20Email-Master.PDF
- Operations Addendum 3 - New York City Economic Development Corporation Email (item 29, .PDF, 2.6 MB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=40476034&FileExtension=.PDF&FileName=Operations%20Addendum%203%20-%20New%20York%20City%20Economic%20Development%20Corporation%20Email-Master.PDF
- Operations Addendum 4 - PMI Email Questions (item 30, .PDF, 183 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=40476035&FileExtension=.PDF&FileName=Operations%20Addendum%204%20-%20PMI%20Email%20Questions-Master.PDF
- Operations Addendum 5 - Accident Pilot Post-Interivew Statement (item 31, .PDF, 1.6 MB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=40478928&FileExtension=.PDF&FileName=Operations%20Addendum%205%20-%20Accident%20Pilot%20Post-Interivew%20Statement-Master.PDF
- Weather Study (item 32, .PDF, 988 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=40476036&FileExtension=.PDF&FileName=Weather%20Study-Master.PDF
- Air Traffic Control - N350LH Ground Track (item 33, .PDF, 1.1 MB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=40476037&FileExtension=.PDF&FileName=Air%20Traffic%20Control%20-%20N350LH%20Ground%20Track-Master.PDF
- Air Traffic Control - FAA Chronological Summary of Flight and Partial Transcription of Voice Recordings (item 34, .PDF, 1.1 MB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=40476038&FileExtension=.PDF&FileName=Air%20Traffic%20Control%20-%20FAA%20Chronological%20Summary%20of%20Flight%20and%20Partial%20Transcription%20of%20Voice%20Recordings-Master.PDF
- Air Traffic Control Transcript - NTSB Specialist's Factual Report (item 35, .PDF, 195 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=40476039&FileExtension=.PDF&FileName=Air%20Traffic%20Control%20Transcript%20-%20NTSB%20Specialist%27s%20Factual%20Report-Master.PDF
- Air Traffic Control - FAA Radar Tabular Data (item 36, XLSX, 15 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=40476040&FileExtension=xlsx&FileName=Air%20Traffic%20Control%20-%20FAA%20Radar%20Tabular%20Data-Master
- Performance Study - Specialist's Report (item 37, .PDF, 3.4 MB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=40476041&FileExtension=.PDF&FileName=Performance%20Study%20-%20Specialist%27s%20Report-Master.PDF
- Onboard Image Recorder (GoPro) - Group Chairman's Factual Report (item 38, .PDF, 1.2 MB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=40476136&FileExtension=.PDF&FileName=Onboard%20Image%20Recorder%20(GoPro)%20-%20Group%20Chairman%27s%20Factual%20Report-Master.PDF
- Personal Electronic Devices (PED) - Specialist's Factual Report (item 39, .PDF, 2 photos, 333 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=40476138&FileExtension=.PDF&FileName=Personal%20Electronic%20Devices%20(PED)%20-%20Specialist%27s%20Factual%20Report-Master.PDF
- Onboard Image, Audio, and Data Recorder (Appareo Vision 1000) - Specialist's Factual Report (item 40, .PDF, 267 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=40476042&FileExtension=.PDF&FileName=Onboard%20Image,%20Audio,%20and%20Data%20Recorder%20%20(Appareo%20Vision%201000)%20-%20Specialist%27s%20Factual%20Report-Master.PDF
- Airworthiness Factual Report (item 41, .PDF, 652 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=40476043&FileExtension=.PDF&FileName=Airworthiness%20Factual%20Report-Master.PDF
- Airworthiness Factual Report - Attachment 1 (item 42, .PDF, 182 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=40476044&FileExtension=.PDF&FileName=Airworthiness%20Factual%20Report%20-%20Attachment%201-Master.PDF
- FSOL - Snap Wire - Materials Laboratory Factual Report 18-059 (item 43, .PDF, 285 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=40476045&FileExtension=.PDF&FileName=FSOL%20-%20Snap%20Wire%20-%20Materials%20Laboratory%20Factual%20Report%2018-059-Master.PDF
- Video Study (item 44, .PDF, 362 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=40476046&FileExtension=.PDF&FileName=Video%20Study-Master.PDF
- Attachment 1 to Video Study - Video 1 (item 45, MOV, 1.3 MB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=40476047&FileExtension=mov&FileName=Attachment%201%20to%20Video%20Study%20-%20Video%201-Master
- Attachment 2 to Video Study - Video 2 (item 46, .PDF, 39 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=40476177&FileExtension=.PDF&FileName=Attachment%202%20to%20Video%20Study%20-%20Video%202-Master.PDF
- Powerplant Group Chairman's Factual Report (item 47, .PDF, 12.2 MB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=40476049&FileExtension=.PDF&FileName=Powerplant%20Group%20Chairman%27s%20Factual%20Report-Master.PDF
- Emergency Flotation System Factual Report (item 48, .PDF, 1.6 MB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=40476050&FileExtension=.PDF&FileName=Emergency%20Flotation%20System%20Factual%20Report-Master.PDF
- Emergency Flotation System Factual Report - Attachment 1 (item 49, .PDF, 302 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=40476051&FileExtension=.PDF&FileName=Emergency%20Flotation%20System%20Factual%20Report%20-%20Attachment%201-Master.PDF
- Emergency Flotation System Factual Report - Attachment 2 (item 50, .PDF, 163 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=40476052&FileExtension=.PDF&FileName=Emergency%20Flotation%20System%20Factual%20Report%20-%20Attachment%202-Master.PDF
- Emergency Flotation System Factual Report - Attachment 3 (item 51, .PDF, 102 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=40476053&FileExtension=.PDF&FileName=Emergency%20Flotation%20System%20Factual%20Report%20-%20Attachment%203-Master.PDF
- Emergency Flotation System Factual Report - Attachment 4 (item 52, .PDF, 981 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=40476054&FileExtension=.PDF&FileName=Emergency%20Flotation%20System%20Factual%20Report%20-%20Attachment%204-Master.PDF
- Emergency Flotation System Factual Report - Attachment 5 (item 53, .PDF, 268 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=40476055&FileExtension=.PDF&FileName=Emergency%20Flotation%20System%20Factual%20Report%20-%20Attachment%205-Master.PDF
- Emergency Flotation System Factual Report - Attachment 6 (item 54, .PDF, 654 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=40476056&FileExtension=.PDF&FileName=Emergency%20Flotation%20System%20Factual%20Report%20-%20Attachment%206-Master.PDF
- Emergency Flotation System Factual Report - Attachment 7 (item 55, .PDF, 101 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=40476057&FileExtension=.PDF&FileName=Emergency%20Flotation%20System%20Factual%20Report%20-%20Attachment%207-Master.PDF
- Emergency Flotation System Factual Report - Attachment 8 (item 56, .PDF, 141 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=40476058&FileExtension=.PDF&FileName=Emergency%20Flotation%20System%20Factual%20Report%20-%20Attachment%208-Master.PDF
- Emergency Flotation System Factual Report - Attachment 9 (item 57, .PDF, 159 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=40476059&FileExtension=.PDF&FileName=Emergency%20Flotation%20System%20Factual%20Report%20-%20Attachment%209-Master.PDF
- Emergency Flotation System Factual Report - Attachment 10 (item 58, .PDF, 189 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=40476060&FileExtension=.PDF&FileName=Emergency%20Flotation%20System%20Factual%20Report%20-%20Attachment%2010-Master.PDF
- Emergency Flotation System Factual Report - Attachment 11 (item 59, .PDF, 142 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=40476062&FileExtension=.PDF&FileName=Emergency%20Flotation%20System%20Factual%20Report%20-%20Attachment%2011-Master.PDF
- Emergency Flotation System Factual Report - Addendum 1 (item 60, .PDF, 126 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=40476063&FileExtension=.PDF&FileName=Emergency%20Flotation%20System%20Factual%20Report%20-%20Addendum%201-Master.PDF
- Computed Tomography Specialist's Factual Report (item 61, .PDF, 7.2 MB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=40476065&FileExtension=.PDF&FileName=Computed%20Tomography%20Specialist%27s%20Factual%20Report-Master.PDF
- Survival Factors Group Chariman's Factual Report (item 62, .PDF, 47 photos, 2.8 MB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=40476125&FileExtension=.PDF&FileName=Survival%20Factors%20Group%20Chariman%27s%20Factual%20Report-Master.PDF
- Survival Factors - Attachment 1 - NYON SOP (item 63, .PDF, 289 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=40476068&FileExtension=.PDF&FileName=Survival%20Factors%20-%20Attachment%201%20-%20NYON%20SOP-Master.PDF
- Survival Factors - Attachment 3 - NYONair CX Training Manual (item 64, .PDF, 171 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=40476071&FileExtension=.PDF&FileName=Survival%20Factors%20-%20Attachment%203%20-%20NYONair%20CX%20Training%20Manual-Master.PDF
- Survival Factors - Attachment 4 - NYONair Customer Service Pilot Training (item 65, .PDF, 58 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=40476072&FileExtension=.PDF&FileName=Survival%20Factors%20-%20Attachment%204%20-%20NYONair%20Customer%20Service%20Pilot%20Training-Master.PDF
- Survival Factors - Attachment 5 - ARS Heli-OPS Harness (item 66, .PDF, 3.4 MB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=40476073&FileExtension=.PDF&FileName=Survival%20Factors%20-%20Attachment%205%20-%20ARS%20Heli-OPS%20Harness-Master.PDF
- Survival Factors - Attachment 6 - Submission Package to FAA (item 67, .PDF, 278 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=40476074&FileExtension=.PDF&FileName=Survival%20Factors%20-%20Attachment%206%20-%20Submission%20Package%20to%20FAA-Master.PDF
- Survival Factors - Attachment 7 FAA Submittal Video (item 68, .PDF, 48 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=40476449&FileExtension=.PDF&FileName=Survival%20Factors%20-%20Attachment%207%20FAA%20Submittal%20Video-Master.PDF
- Survival Factors - Attachment 8 - Signed FAA Approval Letter (item 69, .PDF, 182 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=40476076&FileExtension=.PDF&FileName=Survival%20Factors%20-%20Attachment%208%20-%20Signed%20FAA%20Approval%20Letter-Master.PDF
- Survival Factors - Attachment 9 - Medical and Pathological Information (item 70, .PDF, 108 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=40476077&FileExtension=.PDF&FileName=Survival%20Factors%20-%20Attachment%209%20-%20Medical%20and%20Pathological%20Information-Master.PDF
- Survival Factors - Attachment 10 - Interview Summary- Kiara Martinez (item 71, .PDF, 69 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=40476078&FileExtension=.PDF&FileName=Survival%20Factors%20-%20Attachment%2010%20-%20Interview%20Summary-%20Kiara%20Martinez-Master.PDF
- Survival Factors - Attachment 11 - Interview Summary- Eric Adams (item 72, .PDF, 76 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=40476079&FileExtension=.PDF&FileName=Survival%20Factors%20-%20Attachment%2011%20-%20Interview%20Summary-%20Eric%20Adams-Master.PDF
- Survival Factors - Attachment 12 - Interview Summary- Divers (item 73, .PDF, 33 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=40476080&FileExtension=.PDF&FileName=Survival%20Factors%20-%20Attachment%2012%20-%20Interview%20Summary-%20Divers-Master.PDF
- Party Submission to NTSB - NYONair (item 74, .PDF, 1.7 MB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=40477944&FileExtension=.PDF&FileName=Party%20Submission%20to%20NTSB%20-%20NYONair-Master.PDF
- Party Submission to NTSB - Dart Aerospace (item 75, .PDF, 2 photos, 371 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=40477943&FileExtension=.PDF&FileName=Party%20Submission%20to%20NTSB%20-%20Dart%20Aerospace-Master.PDF
- Statement of Party Representatives to NTSB Investigation (item 76, .PDF, 535 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=40476081&FileExtension=.PDF&FileName=Statement%20of%20Party%20Representatives%20to%20NTSB%20Investigation-Master.PDF
- Disclaimer of the Visual Reconstruction of the Accident - Animation (item 77, .PDF, 83 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=40478929&FileExtension=.PDF&FileName=Disclaimer%20of%20the%20Visual%20Reconstruction%20of%20the%20Accident%20-%20Animation-Master.PDF
- Release of Aircraft Wreckage, NTSB Form 6120.15 (item 78, .PDF, 581 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=40481679&FileExtension=.PDF&FileName=Release%20of%20Aircraft%20Wreckage,%20NTSB%20Form%206120.15-Master.PDF
- NTSB - Adopted Board Report (item 79, .PDF, 7.0 MB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=40481680&FileExtension=.PDF&FileName=NTSB%20-%20Adopted%20Board%20Report-Master.PDF

From the NTSB's public API. Aircraft are matched to registry aircraft by N-number and event date, checked against the reported serial number, make and model; the registry's history has gaps, so older matches can be wrong. Compare the reported make and model.

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