# NTSB DCA17FA021: Boeing 767, N345AN, Chicago, IL, October 28, 2016

- Type: NTSB accident investigation
- Classification: Accident · Serious injuries · Class 1 · Field · Final report
- Date: October 28, 2016
- Place: Chicago, IL
- Coordinates: 41.968887, -87.917778
- Nearby events: https://openairdocs.org/map.md?lat=41.9689&lon=-87.9178&mi=10
- Phase of flight: [Takeoff](https://openairdocs.org/ntsb-phases/300) (OpenAirDocs' grouping)
- Defining event: [Takeoff-rejected takeoff: Uncontained engine failure](https://openairdocs.org/ntsb-events/343)
- Highest injury: Serious injuries
- Injuries: 1 serious, 20 minor, 149 uninjured
- Status: Completed, report February 6, 2018
- Report: Board-adopted at Board Meeting
- Investigation class: Class 1
- NTSB office: Major Investigations Division
- Safety recommendations: Yes
- NTSB case key (mKey): 94308
- NTSB case page: https://www.ntsb.gov/investigations/Pages/DCA17FA021.aspx
- NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/94308/pdf
- Board report AAR1801 (PDF): https://www.ntsb.gov/investigations/AccidentReports/Reports/AAR1801.pdf
- NTSB docket: https://data.ntsb.gov/Docket?ProjectID=94308
- Page: https://openairdocs.org/ntsb/DCA17FA021

## Probable cause

The failure of the high-pressure turbine (HPT) stage 2 disk, which severed the main engine fuel feed line and breached the right main wing fuel tank, releasing fuel that resulted in a fire on the right side of the airplane during the takeoff roll. The HPT stage 2 disk failed because of low-cycle fatigue cracks that initiated from an internal subsurface manufacturing anomaly that was most likely not detectable during production inspections and subsequent in service inspections using the procedures in place. Contributing to the serious passenger injury was (1) the delay in shutting down the left engine and (2) a flight attendant's deviation from company procedures, which resulted in passengers evacuating from the left overwing exit while the left engine was still operating. Contributing to the delay in shutting down the left engine was (1) the lack of a separate checklist procedure for Boeing 767 airplanes that specifically addressed engine fires on the ground and (2) the lack of communication between the flight and cabin crews after the airplane came to a stop.

## Findings

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

- [Engine (turbine/turboprop): turbine section](https://openairdocs.org/ntsb-findings/01057250): Aircraft › Aircraft power plant · Failure (probable cause); cases with it: [Boeing 767-323, 1 case](https://openairdocs.org/ntsb-findings/01057250/cases.md?model=1385205), [All aircraft, 74 cases](https://openairdocs.org/ntsb-findings/01057250/cases.md)
- [Fuel system](https://openairdocs.org/ntsb-findings/01022800): Aircraft › Aircraft systems · Damaged/degraded (probable cause); cases with it: [Boeing 767-323, 1 case](https://openairdocs.org/ntsb-findings/01022800/cases.md?model=1385205), [All aircraft, 181 cases](https://openairdocs.org/ntsb-findings/01022800/cases.md)
- [Use of equip/info: use of policy/procedure](https://openairdocs.org/ntsb-findings/02063032): Personnel issues › Task performance · Cabin crew (probable cause); cases with it: [Boeing 767-323, 1 case](https://openairdocs.org/ntsb-findings/02063032/cases.md?model=1385205), [All aircraft, 191 cases](https://openairdocs.org/ntsb-findings/02063032/cases.md)
- [Action: delayed action](https://openairdocs.org/ntsb-findings/02041025): Personnel issues › Action/decision · Flight crew (probable cause); cases with it: [Boeing 767-323, 1 case](https://openairdocs.org/ntsb-findings/02041025/cases.md?model=1385205), [All aircraft, 894 cases](https://openairdocs.org/ntsb-findings/02041025/cases.md)
- [Communication (personnel): lack of communication](https://openairdocs.org/ntsb-findings/02063510): Personnel issues › Task performance · Flight crew (probable cause); cases with it: [Boeing 767-323, 1 case](https://openairdocs.org/ntsb-findings/02063510/cases.md?model=1385205), [All aircraft, 84 cases](https://openairdocs.org/ntsb-findings/02063510/cases.md)
- [Communication (personnel): lack of communication](https://openairdocs.org/ntsb-findings/02063510): Personnel issues › Task performance · Cabin crew (probable cause); cases with it: [Boeing 767-323, 1 case](https://openairdocs.org/ntsb-findings/02063510/cases.md?model=1385205), [All aircraft, 84 cases](https://openairdocs.org/ntsb-findings/02063510/cases.md)
- [Manufacture/production: equipment manufacture](https://openairdocs.org/ntsb-findings/04013010): Organizational issues › Development · Manufacturer (probable cause); cases with it: [Boeing 767-323, 1 case](https://openairdocs.org/ntsb-findings/04013010/cases.md?model=1385205), [All aircraft, 36 cases](https://openairdocs.org/ntsb-findings/04013010/cases.md)
- [Design: task design](https://openairdocs.org/ntsb-findings/04011015): Organizational issues › Development · Manufacturer (probable cause); cases with it: [Boeing 767-323, 1 case](https://openairdocs.org/ntsb-findings/04011015/cases.md?model=1385205), [All aircraft, 3 cases](https://openairdocs.org/ntsb-findings/04011015/cases.md)
- [Resources: adequacy of documents/info](https://openairdocs.org/ntsb-findings/04022045): Organizational issues › Management · FAA/Regulator; cases with it: [Boeing 767-323, 2 cases](https://openairdocs.org/ntsb-findings/04022045/cases.md?model=1385205), [All aircraft, 6 cases](https://openairdocs.org/ntsb-findings/04022045/cases.md)
- [Training: emergency proc training](https://openairdocs.org/ntsb-findings/04031030): Organizational issues › Support/oversight/monitoring · FAA/Regulator; cases with it: [Boeing 767-323, 1 case](https://openairdocs.org/ntsb-findings/04031030/cases.md?model=1385205), [All aircraft, 8 cases](https://openairdocs.org/ntsb-findings/04031030/cases.md)

## Sequence of events

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

- [Takeoff-rejected takeoff: Uncontained engine failure](https://openairdocs.org/ntsb-events/343) (defining event); cases with it: [Boeing 767-323, 1 case](https://openairdocs.org/ntsb-events/343/sequence.md?model=1385205), [All aircraft, 47 cases](https://openairdocs.org/ntsb-events/343/sequence.md)
- [Other: Fire/smoke (non-impact)](https://openairdocs.org/ntsb-events/150); cases with it: [Boeing 767-323, 2 cases](https://openairdocs.org/ntsb-events/150/sequence.md?model=1385205), [All aircraft, 504 cases](https://openairdocs.org/ntsb-events/150/sequence.md)
- [Other: Evacuation](https://openairdocs.org/ntsb-events/460); cases with it: [Boeing 767-323, 1 case](https://openairdocs.org/ntsb-events/460/sequence.md?model=1385205), [All aircraft, 103 cases](https://openairdocs.org/ntsb-events/460/sequence.md)

## Analysis

NTSB investigators traveled in support of this investigation and used data obtained from various sources to prepare this aircraft accident report. The NTSB's full report is available at http://www.ntsb.gov/investigations/AccidentReports/Pages/AccidentReports.aspx. The Aircraft Accident Report number is NTSB/AAR-18/01. On October 28, 2016, about 1432 central daylight time, American Airlines flight 383, a Boeing 767-323, N345AN, had started its takeoff ground roll at Chicago O'Hare International Airport, Chicago, Illinois, when an uncontained engine failure in the right engine and subsequent fire occurred. The flight crew aborted the takeoff and stopped the airplane on the runway, and the flight attendants initiated an emergency evacuation. Of the 2 flight crewmembers, 7 flight attendants, and 161 passengers on board, 1 passenger received a serious injury and 1 flight attendant and 19 passengers received minor injuries during the evacuation. The airplane was substantially damaged from the fire. The airplane was operating under the provisions of 14 Code of Federal Regulations Part 121. Visual meteorological conditions prevailed at the time of the accident.

## Factual narrative

The NTSB's full report is available at http://www.ntsb.gov/investigations/AccidentReports/Pages/AccidentReports.aspx. The Aircraft Accident Report number is NTSB/AAR-18/01. On October 28, 2016, about 1432 central daylight time, American Airlines flight 383, a Boeing 767-323, N345AN, had started its takeoff ground roll at Chicago O'Hare International Airport, Chicago, Illinois, when an uncontained engine failure in the right engine and subsequent fire occurred. The flight crew aborted the takeoff and stopped the airplane on the runway, and the flight attendants initiated an emergency evacuation. Of the 2 flight crewmembers, 7 flight attendants, and 161 passengers on board, 1 passenger received a serious injury and 1 flight attendant and 19 passengers received minor injuries during the evacuation. The airplane was substantially damaged from the fire. The airplane was operating under the provisions of 14 Code of Federal Regulations Part 121. Visual meteorological conditions prevailed at the time of the accident.

## Aircraft

- Registration: [N345AN](https://openairdocs.org/deregistered/N345AN-2019-09-04), registration cancelled 2019-09-04, S/N 33084, built 2003 (OpenAirDocs)
- Reported make and model: BOEING 767 (323)
- Registry model: [Boeing 767-323](https://openairdocs.org/model/boeing-767-323) (registry code 1385205) (OpenAirDocs)
- Registry engine: [GE CF6-80 series](https://openairdocs.org/engine/ge-cf6-80-series) (registry code 30025, turbo-fan) (OpenAirDocs)
- Category: Airplane
- Serial number: N345AN
- Year built: 2003
- Engines: General Electric CF6-80C2 B6 turbo fan; General Electric CF6-80C2 B6 turbo fan
- Damage: Substantial damage
- Fire: On-Ground
- Flight: Part 121
- Operator: American Airlines Inc
- Registered owner: American Airlines Group, Inc.
- Airworthiness certificate: Standard, Transport
- Last inspection: Continuous airworthiness, January 15, 2011
- Departed: KORD, Chicago, IL
- Destination: KMIA, Miami, FL
- Flight plan: IFR
- Airport: KORD, Chicago O'Hare International A, runway 28R, 13,000 × 150 ft, concrete
- Equipment: Electronic flight bag or handheld device, Data recorder, Stall warning system, Electronic multifunction display

## Flight crew

As NTSB recorded them. NTSB leaves out names.

- Pilot; age 61; injuries: none; flight engineer, airline transport; airplane ratings: multi-engine land; instrument ratings: airplane; medical: class 1, without waivers/limitations; last flight review March 22, 2016; seat: left; restraint: 3-point; flight hours: 17,400 total, 4,000 in this make and model
- Co-pilot; age 57; injuries: none; flight engineer, airline transport; airplane ratings: multi-engine land; instrument ratings: airplane; medical: class 1, with waivers/limitations; last flight review September 7, 2016; seat: right; restraint: 3-point; flight hours: 22,000 total, 1,846 in this make and model

## Weather

- Conditions: Visual (VMC), Day
- Wind: 180° at 11 knots
- Visibility: 10 statute miles
- Lowest ceiling: 25,000 ft overcast
- Temperature: 61 °F, dew point 52 °F
- Altimeter: 30.04 inHg
- Observed at: KORD

## 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 20161028021359A](https://openairdocs.org/incident/20161028021359A), Oct 28, 2016: Boeing 767-323, Chicago, IL, Substantial damage. American airlines flight 383, N345AN, started its takeoff roll on runway 28R at the intersection with taxiway N5. Shortly after entering the runway and…

## Docket (51 files)

The files NTSB released with the investigation on July 6, 2017, on NTSB's docket system: https://data.ntsb.gov/Docket?ProjectID=94308. 865 MB in all.

- Airworthiness group chairmana��s factual report (item 1, PDF, 61 pages, 9.2 MB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=5232115&FileExtension=pdf&FileName=Airworthiness%20Factual%20Report-Rel.pdf
- Airworthiness, attachment 1 to factual report (item 2, PDF, 10 pages, 4.9 MB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=4982502&FileExtension=pdf&FileName=Attachment%201-Rel.pdf
- Airworthiness, attachment 2 to factual report (item 3, PDF, 21 pages, 4.0 MB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=4982033&FileExtension=pdf&FileName=Attachment%202-Rel.pdf
- Airworthiness, attachment 3 to factual report (item 4, PDF, 2 pages, 14.6 MB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=4981658&FileExtension=pdf&FileName=Attachment%203-Rel.pdf
- Operational factors/human performance group chairmen's factual report (item 5, PDF, 42 pages, 941 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=5113897&FileExtension=pdf&FileName=DCA17FA021%20-%20Operations%20and%20Human%20Performance%20Group%20Chairman%20Factual%20Report-Rel.pdf
- Operational factors/human performance factual attachment 1 - flight crew interview summaries (item 6, PDF, 16 pages, 423 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=5114041&FileExtension=pdf&FileName=Attachment%201%20-%20Flight%20Crew%20Interview%20Summaries-Rel.pdf
- Operational factors/human performance attachment 2 - flight crew written statement (item 7, PDF, 3 pages, 570 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=5113423&FileExtension=pdf&FileName=Attachment%202%20-%20Flight%20Crew%20Written%20Statements%20v1_Redacted-Rel.pdf
- Operational factors/human peformance attachment 3 - American airlines personnel interviews (item 8, PDF, 36 pages, 341 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=5108358&FileExtension=pdf&FileName=Attachment%203%20-%20American%20Airlines%20Personnel%20Interviews-Rel.pdf
- Operational factors/human performance attachment 4 - simulator and cockpit evaluation (item 9, PDF, 17 pages, 649 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=5115286&FileExtension=pdf&FileName=Attachment%204%20-%20Simulator%20and%20Cockpit%20Evaluation-Rel.pdf
- Operational factors/human performance attachment 5 - o'hare airport charts (item 10, PDF, 5 pages, 233 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=5113701&FileExtension=pdf&FileName=Attachment%205%20-%20O%27Hare%20Airport%20Diagram%20-%20Jeppesen-Rel.pdf
- Operational factors/human performance attachment 6 - American airlines pilot flight records (item 11, PDF, 9 pages, 337 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=5121051&FileExtension=pdf&FileName=Attachment%206%20-%20American%20Airlines%20Pilot%20Flight%20Records_Redacted-Rel.pdf
- Operational factors/human performance attachment 7 - American airlines flight operations training manual [excerpt] (item 12, PDF, 6 pages, 101 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=5113609&FileExtension=pdf&FileName=Attachment%207%20-%20American%20Airlines%20Flight%20Operations%20Training%20Manual%20(Excerpt)-Rel.pdf
- Operational factors/human performance attachment 8 - American airlines flight attendant briefing (item 13, PDF, 2 pages, 60 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=5114320&FileExtension=pdf&FileName=Attachment%208%20-%20American%20Airlines%20Flight%20Attendant%20Briefing-Rel.pdf
- Operational factors/human performance attachment 9 - American airlines takeoff briefing (item 14, PDF, 2 pages, 72 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=5114668&FileExtension=pdf&FileName=Attachment%209%20-%20American%20Airlines%20Takeoff%20Briefing-Rel.pdf
- Operational factors/human performance attachment 10 - rejected takeoff procedures (item 15, PDF, 3 pages, 87 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=5114249&FileExtension=pdf&FileName=Attachment%2010%20-%20American%20Airlines%20Rejected%20Takeoff%20Procedures-Rel.pdf
- Operational factors/human performance attachment 11 - American airlines engine fire, severe damage, or separation checklist (item 16, PDF, 4 pages, 169 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=5114875&FileExtension=pdf&FileName=Attachment%2011%20-%20American%20Airlines%20Engine%20Fire%20Severe%20Damage%20Checklist-Rel.pdf
- Operational factors/human performance attachment 12 - American airlines evacuation checklist (item 17, PDF, 2 pages, 85 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=5114506&FileExtension=pdf&FileName=Attachment%2012%20-%20American%20Airlines%20Evacuation%20Checklist-Rel.pdf
- Operational factors/human performance ATTACHMENT13 - American airlines evacuation decision and duties (item 18, PDF, 5 pages, 95 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=5114456&FileExtension=pdf&FileName=Attachment%2013%20-%20American%20Airlines%20Evacuation%20Decision%20and%20Duties-Rel.pdf
- Operational factors/human performance attachment 14 - operation manual checklist information (item 19, PDF, 11 pages, 113 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=5114677&FileExtension=pdf&FileName=attachment%2014%20B767%20Operations%20Manual%20QRH%20-%20Checklist%20Information-Rel.pdf
- Operational factors/human performance attachment 15 - American airlines crew authority (item 20, PDF, 4 pages, 86 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=5114884&FileExtension=pdf&FileName=Attachment%2015%20-%20American%20Airlines%20Crew%20Authority-Rel.pdf
- Operational factors/human performance attachment 16 - Boeing rejected takeoff decision making (item 21, PDF, 7 pages, 132 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=5114770&FileExtension=pdf&FileName=Attachment%2016%20-%20Boeing%20Rejected%20Takeoff%20Decision%20Making-Rel.pdf
- Operational factors/human performance attachment 17 - Boeing rejected takeoff procedure (item 22, PDF, 5 pages, 475 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=5114893&FileExtension=pdf&FileName=Attachment%2017%20-%20Boeing%20Rejected%20Takeoff-Rel.pdf
- Operational factors/human performance attachment 18 - Boeing flight manual - engine fire, severe damage or separtation checklist (item 23, PDF, 4 pages, 59 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=5114515&FileExtension=pdf&FileName=Attachment%2018%20-%20Boeing%20Airplane%20Flight%20Manual%20-%20Engine%20Fire-Rel.pdf
- Operational factors/human performance attachment 19 - Boeing qrh - engine fire, severe damage or separation checklist (item 24, PDF, 4 pages, 316 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=5114329&FileExtension=pdf&FileName=Attachment%2019%20-%20Boeing%20QRH%20-%20Engine%20Fire%20Severe%20Damage%20Checklist-Rel.pdf
- Operational factors/human performance attachment 20 - Boeing evacuation checklist (item 25, PDF, 2 pages, 99 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=5114619&FileExtension=pdf&FileName=Attachment%2020%20-%20Boeing%20Evacuation%20Checklist-Rel.pdf
- Operational factors/human performance attachment 21 - non-normal checklist instructions (item 26, PDF, 3 pages, 390 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=5114979&FileExtension=pdf&FileName=Attachment%2021%20-%20Boeing%20Non%20Normal%20Checklist%20Instructions-Rel.pdf
- Operational factors/human performance attachment 22 - American airlines Airbus engine fire checklist (on ground) (item 27, PDF, 5 pages, 256 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=5114144&FileExtension=pdf&FileName=Attachment%2022%20-%20American%20Airlines%20Airbus%20Engine%20Fire%20on%20Ground%20Checklist-Rel.pdf
- Operational factors/human performance attachment 23 - American airlines Embraer engine fire checklist (on ground) (item 28, PDF, 6 pages, 525 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=5114524&FileExtension=pdf&FileName=Attachment%2023%20-%20American%20Airlines%20Embraer%20Checklist-Rel.pdf
- Survival factors - survival factors group chairmana��s factual report (item 29, PDF, 24 pages, 6 photos, 1.6 MB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=5245387&FileExtension=pdf&FileName=Survival%20Factors%20Group%20Chairman%E2%80%99s%20Factual%20Report%20-%20Final-Rel.pdf
- Survival factors attachment 1 a�� flight attendant interviews (item 30, PDF, 27 pages, 163 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=5132487&FileExtension=pdf&FileName=FA%20Interviews%201-7%20with%20cover%20page-Rel.pdf
- Survival factors attachment 2 a�� passenger interviews (item 31, PDF, 3 pages, 78 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=5132911&FileExtension=pdf&FileName=Passenger%20Interview%20with%20cover%20page-Rel.pdf
- Survival factors attachment 3 a�� American airlines management interviews (item 32, PDF, 12 pages, 115 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=5132853&FileExtension=pdf&FileName=Mgnt%20Interviews%20with%20cover%20page-Rel.pdf
- Survival factors - attachment 4 a�� terminal video of evacuation (1) (item 33, MOV, 288 MB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=5132519&FileExtension=MOV&FileName=Terminal%20Video%20of%20Evacuation%20(1)%20sourced%20by%20American%20Airlines-Rel.MOV
- Survival factors attachment 5 - terminal video of evacuation (2) (item 34, MOV, 16.2 MB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=5133017&FileExtension=mov&FileName=Terminal%20Video%20of%20Evacuation%20(2)%20sourced%20by%20American%20Airlines-Rel.mov
- Materials laboratory factual report 17-034 (item 35, PDF, 81 pages, 63 photos, 33.4 MB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=5230228&FileExtension=pdf&FileName=Materials%20Laboratory%20Factual%20Report%2017-034-Rel.pdf
- Materials laboratory study report 17-034S (item 36, PDF, 6 pages, 4 photos, 291 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=5242623&FileExtension=pdf&FileName=Materials%20Laboratory%20Study%20Report%2017-034S-Rel.pdf
- Flight data recorder specialist's factual report (item 37, PDF, 15 pages, 3.3 MB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=5133263&FileExtension=pdf&FileName=Flight%20Data%20Recorder%20Specialist%27s%20Factual%20Report-Rel.pdf
- Flight data recorder specialist's factual report - attachment 1 (item 38, CSV, 2.9 MB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=5134588&FileExtension=csv&FileName=Flight%20Data%20Recorder%20Specialist%27s%20Factual%20Report%20-%20Attachment%201-Rel.csv
- General electric metallurgical investigation report FA2017-18058 metallurgical evaluation of ati 718 billet dws findings (item 39, PDF, 4 pages, 826 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=5151817&FileExtension=pdf&FileName=FA2017-18058%20DWS%20Study%20-%2020170511-Rel.pdf
- Powerplant group chairman's factual report (item 40, PDF, 77 pages, 8.6 MB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=5238066&FileExtension=pdf&FileName=AA%20Fire%20and%20uncontained%20FactualA-Rel.pdf
- Cockpit voice recorder - group chairman's factual report (item 41, PDF, 15 pages, 253 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=5241542&FileExtension=pdf&FileName=factual%20redact-Rel.pdf
- American airlines party submission (item 42, PDF, 10 pages, 169 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=5982045&FileExtension=pdf&FileName=AA%20NTSB%20Party%20Submission%20re%20AAL383-Rel.pdf
- Apa party submission (item 43, PDF, 9 pages, 60 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=5982613&FileExtension=pdf&FileName=APA%20NTSB%20submission%20concerning%20AA%20383-Rel.pdf
- Apfa party submission (item 44, PDF, 4 pages, 403 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=5982056&FileExtension=pdf&FileName=APFA-Chicago%20Engine%20Failure%20Final%20Submission-Rel.pdf
- Ati party submission (item 45, PDF, 7 pages, 75 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=5981853&FileExtension=pdf&FileName=ATI%20Submission%20to%20the%20NTSB(104327156_1)%20Rev%201-Rel.pdf
- Boeing party submission (item 46, PDF, 10 pages, 155 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=5982876&FileExtension=pdf&FileName=Boeing%20AA383%20-%20NTSB%20Submission-Rel.pdf
- Ge party submission (item 47, PDF, 2 pages, 58 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=5983056&FileExtension=pdf&FileName=GE%20Aviation%20Submission%20for%20DCA17FA021%20-%2020170726%20without%20signature-Rel.pdf
- Twu party submission (item 48, PDF, 1 page, 289 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=5983117&FileExtension=pdf&FileName=TWU%20Party%20Submission%20Letter-Rel.pdf
- Flight data recorder specialist's factual report - errata 1 (item 49, PDF, 1 page, 10 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=5606479&FileExtension=pdf&FileName=Flight%20Data%20Recorder%20Specialist%27s%20Factual%20Report%20-%20Errata%201-Rel.pdf
- Errata to CVR group chairman's factual report (item 50, PDF, 1 page, 10 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=5629224&FileExtension=pdf&FileName=errata%202-Rel.pdf
- Video file provided by chicago department of aviation airport operations (item 51, M2TS, 468 MB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=5981846&FileExtension=m2ts&FileName=American1-Rel.m2ts

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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