# NTSB DCA05MA004: British Aerospace Jetstream 32, N875JX, Kirksville, MO, October 20, 2004

- Type: NTSB accident investigation
- Classification: Accident · Fatal · Class 1 · Major · Final report
- Date: October 19, 2004, 19:37 local (Oct 20, 2004, 00:37 UTC)
- Place: Kirksville, MO
- Coordinates: 40.190479, -92.570533 (estimated)
- Nearby events: https://openairdocs.org/map.md?lat=40.1905&lon=-92.5705&mi=10
- Phase of flight: [Approach](https://openairdocs.org/ntsb-phases/500) (OpenAirDocs' grouping)
- Highest injury: Fatal
- Injuries: 13 fatal, 2 serious
- Status: Completed, report January 24, 2006
- Report: Board-adopted at Board Meeting
- Investigation class: Class 1
- NTSB office: Major Investigations Division
- Safety recommendations: Yes
- NTSB case key (mKey): 60395
- NTSB case page: https://www.ntsb.gov/investigations/Pages/DCA05MA004.aspx
- NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/60395/pdf
- Board report AAR0601 (PDF): https://www.ntsb.gov/investigations/AccidentReports/Reports/AAR0601.pdf
- NTSB docket: https://data.ntsb.gov/Docket?ProjectID=60395
- Page: https://openairdocs.org/ntsb/DCA05MA004

## Probable cause

the pilots' failure to follow established procedures and properly conduct a nonprecision instrument approach at night in IMC, including their descent below the minimum descent altitude (MDA) before required visual cues were available (which continued unmoderated until the airplane struck the trees) and their failure to adhere to the established division of duties between the flying and nonflying (monitoring) pilot.

Contributing to the accident was the pilots' failure to make standard callouts and the current Federal Aviation Regulations that allow pilots to descend below the MDA into a region in which safe obstacle clearance is not assured based upon seeing only the airport approach lights. The pilots' unprofessional behavior during the flight and their fatigue likely contributed to their degraded performance.

.

## Sequence of events

In NTSB's coding before 2008 (https://www.ntsb.gov/GILS/Documents/codman.pdf).

- In flight collision with object, approach
  - light condition - night (contributing factor)
  - minimum descent altitude - continued below, flightcrew (cause)
  - object - tree(s)
  - fatigue, flightcrew (contributing factor)
  - crew/group coordination - inadequate, flightcrew (cause)

## Analysis

The Board's full report is available at http://www.ntsb.gov/publictn/publictn.htm.  The Aircraft Accident Report number is NTSB/AAR-06/01.

On October 19, 2004, about 1937 central daylight time, Corporate Airlines (doing business as American Connection) flight 5966, a BAE Systems BAE-J3201, N875JX, struck trees on final approach and crashed short of runway 36 at Kirksville Regional Airport (IRK), Kirksville, Missouri. The flight was operating under the provisions of 14 Code of Federal Regulations Part 121 as a scheduled passenger flight from Lambert-St. Louis International Airport, in St. Louis, Missouri, to IRK. The captain, first officer, and 11 of the 13 passengers were fatally injured, and 2 passengers received serious injuries. The airplane was destroyed by impact and a postimpact fire. Night instrument meteorological conditions (IMC) prevailed at the time of the accident, and the flight operated on an instrument flight rules flight plan.

## Factual narrative

The Safety Board's full report is available at http://www.ntsb.gov/publictn/publictn.htm.  The Aircraft Accident Report number is NTSB/AAR-06/01.

On October 19, 2004, about 1937 central daylight time,  Corporate Airlines (doing business as American Connection)  flight 5966, a BAE Systems BAE-J3201, N875JX, struck trees on final approach and crashed short of runway 36 at Kirksville Regional Airport (IRK), Kirksville, Missouri. The flight was operating under the provisions of 14 Code of Federal Regulations (CFR) Part 121 as a scheduled passenger flight from Lambert-St. Louis International Airport (STL), in St. Louis, Missouri, to IRK.  The captain, first officer, and 11 of the 13 passengers were fatally injured, and 2 passengers received serious injuries. The airplane was destroyed by impact and a postimpact fire. Night instrument meteorological conditions (IMC) prevailed for the flight, which operated on an instrument flight rules (IFR) flight plan.

## Aircraft

- Registration: [N875JX](https://openairdocs.org/deregistered/N875JX-2005-09-29), registration cancelled 2005-09-29, S/N 875, built 1989 (OpenAirDocs)
- Reported make and model: British Aerospace Jetstream 32
- Registry model: [British Aerospace BAE JETSTREAM 3201](https://openairdocs.org/model/british-aerospace-bae-jetstream-3201) (registry code 1500217) (OpenAirDocs)
- Registry engine: [AiResearch TPE331 series](https://openairdocs.org/engine/airesearch-tpe331-series) (registry code 01514, turbo-prop) (OpenAirDocs)
- Category: Airplane
- Serial number: 875
- Airframe hours: 21977.6
- Engines: Garrett-AiResearch TPE331 1100 horsepower turbo prop; Garrett-AiResearch TPE331 1100 horsepower turbo prop
- Damage: Destroyed
- Fire: On-Ground
- Flight: Part 121
- Operator: Corporate Airlines
- Registered owner: Wells Fargo Bank
- Airworthiness certificate: Standard, Normal
- Last inspection: Continuous airworthiness, October 18, 2004, 9.4 hours before
- Departed: KSTL, St. Louis, MO
- Destination: KIRK, Kirksville, MO
- Flight plan: IFR
- Airport: IRK, Kirksville Regional, runway 36, 6,005 × 100 ft, asphalt

## Flight crew

As NTSB recorded them. NTSB leaves out names.

- Pilot; age 48; injuries: fatal; airline transport, commercial; airplane ratings: multi-engine land, single-engine land; instrument ratings: airplane; medical: class 1, valid medical--w/ waivers/lim; last flight review July 1, 2004; seat: left; toxicology performed; flight hours: 4,234 total, 2,510 in this make and model, 3,277 as pilot in command, 191 in the last 90 days, 72 in the last 30 days, 62 in the last 24 hours
- Co-pilot; age 29; injuries: fatal; commercial; airplane ratings: multi-engine land, single-engine land; instrument ratings: airplane; medical: class 1, valid medical--w/ waivers/lim; last flight review August 12, 2004; seat: rear; toxicology performed; flight hours: 2,856 total, 107 in this make and model, 2,698 as pilot in command, 107 in the last 90 days, 72 in the last 30 days, 6 in the last 24 hours

## Weather

- Conditions: Instrument (IMC), Night/dark
- Wind: 20° at 6 knots
- Visibility: 3 statute miles
- Lowest ceiling: 300 ft overcast
- Temperature: 48 °F, dew point 46 °F
- Altimeter: 29.95 inHg
- Observed at: KIRK, 2 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 20041019033429A](https://openairdocs.org/incident/20041019033429A), Oct 19, 2004: Bag JETSTM3201, Kirksville, MO, Destroyed, 13 fatal. (-23) On 10/19/04, about 1937 CST, a british aerospace jetstream 3200, twin-engine turboprop airplane, N875JX, operating as American connection flight 5966…

## Docket (55 files)

The files NTSB released with the investigation on April 19, 2022, on NTSB's docket system: https://data.ntsb.gov/Docket?ProjectID=60395. 48.8 MB in all.

- Operations 2-factual report of group chairman (item 1, PDF, 21 pages, 247 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=13671019&FileExtension=pdf&FileName=Operations%202-Factual%20Report%20of%20Group%20Chairman-Master-Rel.pdf
- Operations 2-errata and addendum 1 (item 2, PDF, 4 pages, 153 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=13670899&FileExtension=pdf&FileName=Operations%202-Errata%20and%20Addendum%201-Master-Rel.pdf
- Operations 2-attachment 1_interview summaries (item 3, PDF, 35 pages, 359 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=13670768&FileExtension=pdf&FileName=Operations%202-Attachment%201_Interview%20Summaries-Master-Rel.pdf
- Operations 2-attachment 2_aircraft load manifest found at accident site (item 4, PDF, 2 pages, 182 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=13671076&FileExtension=pdf&FileName=Operations%202-Attachment%202_Aircraft%20Load%20Manifest%20Found%20at%20Accident%20Site-Master-Rel.pdf
- Operations 2-attachment 3_airplane callouts (item 5, PDF, 2 pages, 138 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=13671574&FileExtension=pdf&FileName=Operations%202-Attachment%203_Airplane%20Callouts-Master-Rel.pdf
- Operations 2-attachment 4_normal non precision approach profile notes (item 6, PDF, 2 pages, 129 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=13671883&FileExtension=pdf&FileName=Operations%202-Attachment%204_Normal%20Non%20Precision%20Approach%20Profile%20Notes-Master-Rel.pdf
- Operations 2-attachment 5_glide path information (item 7, PDF, 3 pages, 325 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=13671577&FileExtension=pdf&FileName=Operations%202-Attachment%205_Glide%20Path%20Information-Master-Rel.pdf
- Operations 2-attachment 6_jeppesen approach plate for kirksville Missouri airport (item 8, PDF, 2 pages, 163 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=13671123&FileExtension=pdf&FileName=Operations%202-Attachment%206_Jeppesen%20Approach%20Plate%20for%20Kirksville%20Missouri%20Airport-Master-Rel.pdf
- Operations 2-attachment 7_corporate airline stabilized approach criteria (item 9, PDF, 3 pages, 300 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=13671692&FileExtension=pdf&FileName=Operations%202-Attachment%207_Corporate%20Airline%20Stabilized%20Approach%20Criteria-Master-Rel.pdf
- Operations 2-attachment 8_requirements for a missed approach (item 10, PDF, 3 pages, 346 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=13671453&FileExtension=pdf&FileName=Operations%202-Attachment%208_Requirements%20for%20a%20Missed%20Approach-Master-Rel.pdf
- Operations 2-attachment 9_minimum altitudes during approach (item 11, PDF, 2 pages, 168 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=13671126&FileExtension=pdf&FileName=Operations%202-Attachment%209_Minimum%20Altitudes%20During%20Approach-Master-Rel.pdf
- Operations 2-attachment 10_normal non precision approach profile notes (item 12, PDF, 2 pages, 132 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=13672059&FileExtension=pdf&FileName=Operations%202-Attachment%2010_Normal%20Non%20Precision%20Approach%20Profile%20Notes-Master-Rel.pdf
- Operations 2-attachment 11_response to GPWS warnings (item 13, PDF, 2 pages, 158 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=13671887&FileExtension=pdf&FileName=Operations%202-Attachment%2011_Response%20to%20GPWS%20Warnings-Master-Rel.pdf
- Operations 2-attachment 12_witness statements (item 14, PDF, 7 pages, 784 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=13671890&FileExtension=pdf&FileName=Operations%202-Attachment%2012_Witness%20Statements-Master-Rel.pdf
- Operations 2-attachment 13_operations agent statement (item 15, PDF, 4 pages, 383 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=13671980&FileExtension=pdf&FileName=Operations%202-Attachment%2013_Operations%20Agent%20Statement-Master-Rel.pdf
- Operations 2-attachment 14_aeronautical radio arinclog sheet (item 16, PDF, 2 pages, 202 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=13675278&FileExtension=pdf&FileName=Operations%202-Attachment%2014_Aeronautical%20Radio%20ARINCLog%20Sheet-Master-Rel.pdf
- Operations 2-attachment 15-FAA flight inspection report for runway 36 at kirksville airport kirksville Missouri (item 17, PDF, 4 pages, 455 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=13675055&FileExtension=pdf&FileName=Operations%202-Attachment%2015-FAA%20Flight%20Inspection%20Report%20for%20Runway%2036%20at%20Kirksville%20Airport%20Kirksville%20Missouri-Master-Rel.pdf
- ATC 3-factual report of group chairman (item 18, PDF, 9 pages, 491 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=13675563&FileExtension=pdf&FileName=ATC%203-Factual%20Report%20of%20Group%20Chairman-Master-Rel.pdf
- ATC 3-attachment 1_FAA accident package (item 19, PDF, 75 pages, 5.3 MB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=13675566&FileExtension=pdf&FileName=ATC%203-Attachment%201_FAA%20Accident%20Package-Master-Rel.pdf
- Meteorology 5-factual report of group chairman (item 20, PDF, 25 pages, 1.2 MB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=13675853&FileExtension=pdf&FileName=Meteorology%205-Factual%20Report%20of%20Group%20Chairman-Master-Rel.pdf
- Meteorology 5-attachment 1 (item 21, PDF, 3 pages, 62 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=13675281&FileExtension=pdf&FileName=Meteorology%205-Attachment%201-Master-Rel.pdf
- Survival factors 6-factual report of group chairman (item 22, PDF, 25 pages, 284 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=13675058&FileExtension=pdf&FileName=Survival%20Factors%206-Factual%20Report%20of%20Group%20Chairman-Master-Rel.pdf
- Survival factors 6-attachment 1 survivor statement (item 23, PDF, 5 pages, 842 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=988840&FileExtension=pdf&FileName=Survival%20Factors%206-Attachment%201%20Survivor%20Statement-Rel.pdf
- Survival factors 6-attachment 2 photographs (item 24, PDF, 8 pages, 1.1 MB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=13675061&FileExtension=pdf&FileName=Survival%20Factors%206-Attachment%202%20Photographs-Master-Rel.pdf
- Survival factors 6-attachment 3 injury summaries (item 25, PDF, 7 pages, 204 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=13675488&FileExtension=pdf&FileName=Survival%20Factors%206-Attachment%203%20Injury%20Summaries-Master-Rel.pdf
- Survival factors 6-attachment 4 kirksville 911 (item 26, PDF, 6 pages, 132 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=13675856&FileExtension=pdf&FileName=Survival%20Factors%206-Attachment%204%20Kirksville%20911-Master-Rel.pdf
- Survival factors 6-attachment 5 lpfd statement (item 27, PDF, 2 pages, 188 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=988837&FileExtension=pdf&FileName=Survival%20Factors%206-Attachment%205%20LPFD%20Statement-Rel.pdf
- Survival factors 6-errata-addenda (item 28, PDF, 2 pages, 101 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=13675738&FileExtension=pdf&FileName=Survival%20Factors%206-Errata-Addenda-Master-Rel.pdf
- Structures 7-factual report of group chairman (item 29, PDF, 17 pages, 1.4 MB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=13675569&FileExtension=pdf&FileName=Structures%207-Factual%20Report%20of%20Group%20Chairman-Master-Rel.pdf
- Structures 7-addendum 1 (item 30, PDF, 1 page, 83 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=13675741&FileExtension=pdf&FileName=Structures%207-Addendum%201-Master-Rel.pdf
- Fire group factual with pictures (item 31, PDF, 6 pages, 2.4 MB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=13675398&FileExtension=pdf&FileName=Fire%20Group%20Factual%20with%20pictures-Master-Rel.pdf
- Fire group factual-errata (item 32, PDF, 1 page, 8 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=13675491&FileExtension=pdf&FileName=Fire%20Group%20Factual-Errata-Master-Rel.pdf
- Powerplants 8-factual report of group chairman (item 33, PDF, 25 pages, 1.4 MB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=13675284&FileExtension=pdf&FileName=Powerplants%208-Factual%20Report%20of%20Group%20Chairman-Master-Rel.pdf
- Systems 9-factual report of group chairman (item 34, PDF, 11 pages, 379 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=13675572&FileExtension=pdf&FileName=Systems%209-Factual%20Report%20of%20Group%20Chairman-Master-Rel.pdf
- Systems 9-errata_factual report of group chairman (item 35, PDF, 1 page, 6 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=13675401&FileExtension=pdf&FileName=Systems%209-Errata_Factual%20Report%20of%20Group%20Chairman-Master-Rel.pdf
- Systems 9-addendum 1 (item 36, PDF, 4 pages, 145 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=13675954&FileExtension=pdf&FileName=Systems%209-Addendum%201-Master-Rel.pdf
- Systems 9-addendum 2_additional systems information (item 37, PDF, 5 pages, 144 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=13675859&FileExtension=pdf&FileName=Systems%209-Addendum%202_Additional%20Systems%20Information-Master-Rel.pdf
- Flight data recorder 10-group chairman's flight data recorder factual report (item 38, PDF, 7 pages, 337 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=13675287&FileExtension=pdf&FileName=Flight%20Data%20Recorder%2010-Group%20Chairman%27s%20Flight%20Data%20Recorder%20Factual%20Report-Master-Rel.pdf
- Flight data recorder 10-attachment 1 FDR tabular data for the group chairman's flight data recorder factual rport (item 39, CSV, 1.3 MB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=7494215&FileExtension=csv&FileName=Flight%20Data%20Recorder%2010-Attachment%201%20FDR%20tabular%20data%20for%20the%20Group%20Chairman%27s%20Flight%20Data%20Recorder%20Factual%20Rport-Master-Rel.csv
- Flight data recorder 10-addedum 1 group chairman's flight data recorder factual report (item 40, PDF, 4 pages, 219 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=13675290&FileExtension=pdf&FileName=Flight%20Data%20Recorder%2010-Addedum%201%20Group%20Chairman%27s%20Flight%20Data%20Recorder%20Factual%20Report-Master-Rel.pdf
- Flight data recorder 10-addendum 1 group chairman's flight data recorder factual report attachment 1 tabular FDR dat (item 41, CSV, 93 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=7494217&FileExtension=csv&FileName=Flight%20Data%20Recorder%2010-Addendum%201%20Group%20Chairman%27s%20Flight%20Data%20Recorder%20Factual%20Report%20Attachment%201%20tabular%20FDR-Master-Rel.csv
- Flight data recorder 10-errata 1 page 10-3 part d section-time correlation-replace last sentence (item 42, PDF, 1 page, 12 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=13675575&FileExtension=pdf&FileName=Flight%20Data%20Recorder%2010-Errata%201%20page%2010-3%20Part%20D%20Section-Time%20Correlation-replace%20last%20sentence-Master-Rel.pdf
- Aircraft maintenance records factual report (item 43, PDF, 19 pages, 50 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=13675496&FileExtension=pdf&FileName=Aircraft%20Maintenance%20Records%20Factual%20Report-Master-Rel.pdf
- Attachments to maintenance records factual report (item 44, PDF, 78 pages, 12.0 MB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=13675957&FileExtension=pdf&FileName=Attachments%20to%20Maintenance%20Records%20Factual%20Report-Master-Rel.pdf
- Cockpit voice recorder 12-errata (item 45, PDF, 38 pages, 236 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=13675499&FileExtension=pdf&FileName=Cockpit%20Voice%20Recorder%2012-Errata-Master-Rel.pdf
- Cockpit voice recorder 12-factual report of group chairman (item 46, PDF, 43 pages, 351 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=988886&FileExtension=pdf&FileName=Cockpit%20Voice%20Recorder%2012-Factual%20Report%20of%20Group%20Chairman-Master.pdf
- Aircraft performance 13-study of group chairman (item 47, PDF, 28 pages, 1.8 MB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=13675404&FileExtension=pdf&FileName=Aircraft%20Performance%2013-Study%20of%20Group%20Chairman-Master-Rel.pdf
- Aircraft performance 13-supplement to study of group chairman CVR overlay (item 48, PDF, 6 pages, 237 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=13675064&FileExtension=pdf&FileName=Aircraft%20Performance%2013-Supplement%20to%20Study%20of%20Group%20Chairman%20CVR%20Overlay-Master-Rel.pdf
- Aircraft performance 13-addendum 1 (item 49, PDF, 6 pages, 258 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=13675744&FileExtension=pdf&FileName=Aircraft%20Performance%2013-Addendum%201-Master-Rel.pdf
- Aircraft performance 13-errata 1 replace text on page 17 and add plot to figure 15 (item 50, PDF, 3 pages, 127 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=13675580&FileExtension=pdf&FileName=Aircraft%20Performance%2013-Errata%201%20replace%20text%20on%20page%2017%20and%20add%20plot%20to%20figure%2015-Master-Rel.pdf
- TAWS plots from Honeywell (item 51, PDF, 5 pages, 483 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=13675862&FileExtension=pdf&FileName=TAWS%20Plots%20from%20Honeywell-Master-Rel.pdf
- Human performance 14-factual report of group chairman (item 52, PDF, 48 pages, 374 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=13675407&FileExtension=pdf&FileName=Human%20Performance%2014-Factual%20Report%20of%20Group%20Chairman-Master-Rel.pdf
- Bae systems party submission 9-9-05 (item 53, PDF, 65 pages, 5.0 MB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=13675293&FileExtension=pdf&FileName=BAE%20Systems%20Party%20Submission%209-9-05-Master-Rel.pdf
- Regionsair inc party submission 7-22-05 (item 54, PDF, 102 pages, 5.2 MB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=13675502&FileExtension=pdf&FileName=RegionsAir%20Inc%20Party%20Submission%207-22-05-Master-Rel.pdf
- Regionsair inc reply to bae party submission dated 9-12-05 (item 55, PDF, 9 pages, 288 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=13675962&FileExtension=pdf&FileName=RegionsAir%20Inc%20reply%20to%20BAE%20Party%20Submission%20dated%209-12-05-Master-Rel.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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