# NTSB DCA06MA064: Bombardier CRJ-100, N431CA, Lexington, KY, August 27, 2006

- Type: NTSB accident investigation
- Classification: Accident · Fatal · Class 1 · Major · Final report
- Date: August 27, 2006, 06:07 local (10:07 UTC)
- Place: Lexington, KY
- Coordinates: 38.009849, -84.480377 (estimated)
- Nearby events: https://openairdocs.org/map.md?lat=38.0098&lon=-84.4804&mi=10
- Phase of flight: [Taxi](https://openairdocs.org/ntsb-phases/250) (OpenAirDocs' grouping)
- Highest injury: Fatal
- Injuries: 49 fatal, 1 serious
- Status: Completed, report September 27, 2007
- Report: Board-adopted at Board Meeting
- Investigation class: Class 1
- NTSB office: Major Investigations Division
- Parties: Comair Inc., Federal Aviation Administration, National Air Traffic Controllers Association, GE Transportation  Aircraft Engines, Air Line Pilot Association, Transportaton Safety Board of Canada, Teamsters Local 513 Airline Division, Blue Grass Airport, Intl. Assoc. of Machinists and Aerospace Workers
- Safety recommendations: Yes
- NTSB case key (mKey): 64393
- NTSB case page: https://www.ntsb.gov/investigations/Pages/DCA06MA064.aspx
- NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/64393/pdf
- Board report AAR0705 (PDF): https://www.ntsb.gov/investigations/AccidentReports/Reports/AAR0705.pdf
- NTSB docket: https://data.ntsb.gov/Docket?ProjectID=64393
- Page: https://openairdocs.org/ntsb/DCA06MA064

## Probable cause

the flight crewmembers's failure to use available cues and aids to identify the airplane's location on the airport surface during taxi and their failure to cross-check and verify that the airplane was on the correct runway before takeoff. Contributing to the accident were the flight crew's nonpertinent conversation during taxi, which resulted in a loss of positional awareness, and the Federal Aviation Administration's failure to require that all runway crossings be authorized only by specific air traffic control clearances.

## Sequence of events

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

- Miscellaneous/other, taxi
  - light condition - dark night
  - procedures/directives - not followed, flightcrew (contributing factor)
  - became lost/disoriented - inattentive, flightcrew (cause)
  - wrong taxi route - not detected, flightcrew (cause)
  - procedure inadequate, faa(other/organization) (contributing factor)
  - instructions,written/verbal - not required, faa(other/organization) (contributing factor)
- Overrun, takeoff
  - wrong runway - inattentive, flightcrew (cause)
  - wrong runway - not detected, flightcrew (cause)
- In flight collision with terrain/water, takeoff

## Analysis

The Safety Board's full report is available at http://www.ntsb.gov/publictn/A_Acc1.htm. The Aircraft Accident Report number is NTSB/AAR-07/05.

On August 27, 2006, about 0606:35 eastern daylight time, Comair flight 5191, a Bombardier CL-600-2B19, N431CA, crashed during takeoff from Blue Grass Airport, Lexington, Kentucky. The flight crew was instructed to take off from runway 22 but instead lined up the airplane on runway 26 and began the takeoff roll. The airplane ran off the end of the runway and impacted the airport perimeter fence, trees, and terrain. The captain, flight attendant, and 47 passengers were killed, and the first officer received serious injuries. The airplane was destroyed by impact forces and postcrash fire. The flight was operating under the provisions of 14 Code of Federal Regulations Part 121 and was en route to Hartsfield-Jackson Atlanta International Airport, Atlanta, Georgia. Night visual meteorological conditions prevailed at the time of the accident.

## Factual narrative

The Safety Board's full report is available at http://www.ntsb.gov/publictn/A_Acc1.htm. The Aircraft Accident Report number is NTSB/AAR-07/05.

On August 27, 2006, about 0606:35 eastern daylight time, Comair flight 5191, a Bombardier CL-600-2B19, N431CA, crashed during takeoff from Blue Grass Airport, Lexington, Kentucky. The flight crew was instructed to take off from runway 22 but instead lined up the airplane on runway 26 and began the takeoff roll. The airplane ran off the end of the runway and impacted the airport perimeter fence, trees, and terrain. The captain, flight attendant, and 47 passengers were killed, and the first officer received serious injuries. The airplane was destroyed by impact forces and postcrash fire. The flight was operating under the provisions of 14 Code of Federal Regulations Part 121 and was en route to Hartsfield-Jackson Atlanta International Airport, Atlanta, Georgia. Night visual meteorological conditions prevailed at the time of the accident.

According to a customer service agent working in the Comair operations area, the flight crew checked in for the flight at 0515. The agent indicated that the crewmembers were casually conversing and were not yawning or rubbing their eyes.

The flight crew collected the flight release paperwork, which included weather information, safety-of-flight notices to airmen (NOTAM), the tail number of the airplane to be used for the flight, and the flight plan. The flight crew then proceeded to an area on the air carrier ramp where two Comair Canadair regional jet (CRJ) airplanes were parked. A Comair ramp agent, who was performing the security check of the accident airplane, noticed that the accident flight crew had boarded the wrong airplane and started its auxiliary power unit (APU). Another company ramp agent notified the flight crewmembers that they had boarded the wrong airplane. The flight crew then shut down the APU and proceeded to the correct airplane.

The LEX air traffic control tower (ATCT) was staffed with one controller at the time of the accident airplane's preflight activities, taxi, and attempted takeoff. The controller was responsible for all tower and radar positions.

The cockpit voice recorder (CVR) recording began about 0536:08. At that time, the flight crew was conducting standard preflight preparations. About 0548:24, the CVR recorded automatic terminal information service (ATIS) information "alpha," which indicated that runway 22 was in use. About 1 minute afterward, the first officer told the controller that he had received the ATIS information.

About 0549:49, the controller stated, "cleared to Atlanta Airport via Bowling Green, ERLIN TWO arrival. Maintain six thousand [feet mean sea level (msl)] .... Departure's [departure control radio frequency] one two zero point seven five. Squawk [transponder code] six six four one." The first officer replied, "okay, got uh, Bowling Green uh, missed the other part. Six thousand, twenty point seven five. Six six four one." The controller then repeated, "it's ERLIN TWO. Echo Romeo Lima India November Two arrival," and the first officer acknowledged the arrival information.

About 0552:04, the captain began a discussion with the first officer about which of them should be the flying pilot to ATL. The captain offered the flight to the first officer, and the first officer accepted. About 0556:14, the captain stated, "Comair standard," which is part of the taxi briefing, and "run the checklist at your leisure."

About 0556:34, the first officer began the takeoff briefing, which is part of the before starting engines checklist. During the briefing, he stated, "he said what runway ... two four," to which the captain replied, "it's two two." The first officer continued the takeoff briefing, which included three additional references to runway 22. After briefing that the runway end identifier lights were out, the first officer commented, "came in the other night it was like ... lights are out all over the place." The first officer also stated, "let's take it out and ... take ... [taxiway] Alpha. Two two's a short taxi." The captain called the takeoff briefing complete about 0557:40.

Starting about 0558:15, the first officer called for the first two items on the before starting engines checklist. When the captain pointed out that the before starting engines checklist had already been completed, the first officer questioned, "we did"? Afterward, the first officer briefed the takeoff decision speed (V1) as 137 knots and the rotation speed (VR) as 142 knots.

Flight data recorder (FDR) data for the accident flight started about 0558:50. The FDR showed that, at some point before the start of the accident flight recording, the pilots' heading bugs had been set to 227º, which corresponded to the magnetic heading for runway 22.

About 0559:14, the captain stated that the airplane was ready to push back from the gate. FDR data showed that, about 0600:08 and 0600:55, the left and right engines, respectively, were started.

About 0602:01, the first officer notified the controller that the airplane was ready to taxi. The controller then instructed the flight crew to taxi the airplane to runway 22. This instruction authorized the airplane to cross runway 26 (the intersecting runway) without stopping. The first officer responded, "taxi two two." FDR data showed that the captain began to taxi the airplane about 0602:17. About the same time, SkyWest flight 6819 departed from runway 22.

About 0602:19, the captain called for the taxi checklist. Beginning about 0603:02, the first officer made two consecutive statements, "radar terrain displays" and "taxi check's complete," that were spoken in a yawning voice. About 0603:38, American Eagle flight 882 departed from runway 22.

From about 0603:16 to about 0603:56, the flight crew engaged in conversation that was not pertinent to the operation of the flight. About 0604:01, the first officer began the before takeoff checklist and indicated again that the flight would be departing from runway 22.

FDR data showed that, about 0604:33, the captain stopped the airplane at the holding position, commonly referred to as the hold short line, for runway 26. Afterward, the first officer made an announcement over the public address system to welcome the passengers and completed the before takeoff checklist. About 0605:15, while the airplane was still at the hold short line for runway 26, the first officer told the controller that "Comair one twenty one" was ready to depart at his leisure; about 3 seconds later, the controller responded, "Comair one ninety one ... fly runway heading. Cleared for takeoff." Neither the first officer nor the controller stated the runway number during the request and clearance for takeoff. FDR data showed that, about 0605:24, the captain began to taxi the airplane across the runway 26 hold short line. The CVR recording showed that the captain called for the lineup checklist at the same time.

About 0605:40, the controller transferred responsibility for American Eagle flight 882 to the Indianapolis Air Route Traffic Control Center (ARTCC). FDR data showed that, about 1 second later, Comair flight 5191 began turning onto runway 26. About 0605:46, the first officer called the lineup checklist complete.

About 0605:58, the captain told the first officer, "all yours," and the first officer acknowledged, "my brakes, my controls." FDR data showed that the magnetic heading of the airplane at that time was about 266º, which corresponded to the magnetic heading for runway 26. About 0606:05, the CVR recorded a sound similar to an increase in engine rpm. Afterward, the first officer stated, "set thrust please," to which the captain responded, "thrust set." About 0606:16, the first officer stated, "[that] is weird with no lights," and the captain responded, "yeah," 2 seconds later.

About 0606:24, the captain called "one hundred knots," to which the first o

## Aircraft

- Registration: [N431CA](https://openairdocs.org/deregistered/N431CA-2009-05-27), registration cancelled 2009-05-27, S/N 7472, built 2001 (OpenAirDocs)
- Reported make and model: Bombardier, Inc. CRJ-100
- Registry model: [Bombardier CL-600-2B19](https://openairdocs.org/model/bombardier-cl-600-2b19) (registry code 1390008) (OpenAirDocs)
- Registry engine: [GE CF34 series](https://openairdocs.org/engine/ge-cf34-series) (registry code 30015, turbo-fan) (OpenAirDocs)
- Category: Airplane
- Serial number: 7472
- Airframe hours: 14536
- Engines: General Electric CF-34-3A1 8729 lbs thrust turbo fan; General Electric CF-34-3A1 8729 lbs thrust turbo fan
- Damage: Destroyed
- Fire: On-Ground
- Flight: Part 121
- Operator: Comair Inc
- Registered owner: First Union National Bank Trustee
- Airworthiness certificate: Standard, Transport
- Last inspection: Continuous airworthiness, August 1, 2006, 0 hours before
- Departed: LEX, Lexington, KY
- Destination: ATL, Atlanta, GA
- Flight plan: IFR
- Airport: LEX, Blue Grass, runway 26, 3,500 × 75 ft, asphalt

## Flight crew

As NTSB recorded them. NTSB leaves out names.

- Pilot; age 35; injuries: fatal; sport pilot, airline transport, commercial, flight instructor; airplane ratings: multi-engine land, single-engine land; instrument ratings: airplane; medical: class 1, with waivers/limitations; last flight review July 1, 2006; seat: left; toxicology performed; flight hours: 4,710 total, 3,082 in this make and model, 158 in the last 90 days, 55 in the last 30 days, 3 in the last 24 hours
- Co-pilot; age 44; injuries: serious; airline transport, commercial, flight instructor; airplane ratings: single-engine land, multi-engine land; instrument ratings: airplane; medical: class 1, with waivers/limitations; last flight review April 1, 2006; seat: right; toxicology performed; flight hours: 6,564 total, 3,564 in this make and model, 940 as pilot in command, 245 in the last 90 days, 64 in the last 30 days, 0 in the last 24 hours

## Weather

- Conditions: Visual (VMC), Night/dark
- Visibility: 8 statute miles
- Lowest ceiling: none
- Temperature: 75 °F, dew point 66 °F
- Altimeter: 30.00 inHg
- Observed at: LEX, 1 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 20060827030719A](https://openairdocs.org/incident/20060827030719A), Aug 27, 2006: Cndair CL6002B19, Lexington, KY, Destroyed, 49 fatal. (-23) On August 27, 2006, at 0606 EDT, comair FL 5191, a Bombardier CL-600-2B19, N431CA, crashed after departure from Blue Grass Airport in Lexington,…

## Docket (88 files)

The files NTSB released with the investigation on January 18, 2007, on NTSB's docket system: https://data.ntsb.gov/Docket?ProjectID=64393. 77.7 MB in all.

- Operations 2 - Factual Report of Group Chairman (item 1, .PDF, 114 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=40270920&FileExtension=.PDF&FileName=Operations%202%20-%20Factual%20Report%20of%20Group%20Chairman-Master.PDF
- Operations 2 - Errata 1 to Operations Factual Report (item 2, .PDF, 15 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=40273006&FileExtension=.PDF&FileName=Operations%202%20-%20Errata%201%20to%20Operations%20Factual%20Report-Master.PDF
- Operations 2 - Addendum 1 to Operations Factual report (item 3, .PDF, 76 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=40273053&FileExtension=.PDF&FileName=Operations%202%20-%20Addendum%201%20to%20Operations%20Factual%20report-Master.PDF
- Operations 2 - Addendum 2 to the Operations Factual report (item 4, .PDF, 29 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=40273057&FileExtension=.PDF&FileName=Operations%202%20-%20Addendum%202%20to%20the%20Operations%20Factual%20report-Master.PDF
- Operations 2 - Attachment 1 -Interview Summaries (item 5, .PDF, 232 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=40270921&FileExtension=.PDF&FileName=Operations%202%20-%20Attachment%201%20-Interview%20Summaries-Master.PDF
- Operations 2 - Attachment 2- Advanced Qualification Program (item 6, .PDF, 1.3 MB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=40270922&FileExtension=.PDF&FileName=Operations%202%20-%20Attachment%202-%20Advanced%20Qualification%20Program-Master.PDF
- Operations 2 - Attachment 3- Horizontal Situation Indicator (item 7, .PDF, 127 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=40270923&FileExtension=.PDF&FileName=Operations%202%20-%20Attachment%203-%20Horizontal%20Situation%20Indicator-Master.PDF
- Operations 2 - Attachment 4 - Comair CRJ Pilots Checklist (item 8, .PDF, 281 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=40422054&FileExtension=.PDF&FileName=Operations%202%20-%20Attachment%204%20-%20Comair%20CRJ%20Pilots%20Checklist-Redacted.PDF
- Operations 2 - Attachment 5 - Jeppesen LEX Airport Diagram (item 9, .PDF, 205 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=40270925&FileExtension=.PDF&FileName=Operations%202%20-%20Attachment%205%20-%20Jeppesen%20LEX%20Airport%20Diagram-Master.PDF
- Operations 2 - Attachment 6 - Comair Bulletin 05-010 (item 10, .PDF, 1.7 MB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=40270926&FileExtension=.PDF&FileName=Operations%202%20-%20Attachment%206%20-%20Comair%20Bulletin%2005-010-Master.PDF
- Operations 2 - Attachment 7 - Safety Alert for Operators (item 11, .PDF, 243 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=40270927&FileExtension=.PDF&FileName=Operations%202%20-%20Attachment%207%20-%20Safety%20Alert%20for%20Operators-Master.PDF
- Operations 2 - Attachment 8 - FAA Memorandum (item 12, .PDF, 585 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=40270928&FileExtension=.PDF&FileName=Operations%202%20-%20Attachment%208%20-%20FAA%20Memorandum-Master.PDF
- Operations 2 - Attachment 9 - "plane Talk" Issue (item 13, .PDF, 863 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=40270929&FileExtension=.PDF&FileName=Operations%202%20-%20Attachment%209%20-%20%22plane%20Talk%22%20Issue-Master.PDF
- Operations 2 - Attachment 10- Copy of Dispatch Flight Release (item 14, .PDF, 1.9 MB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=40273215&FileExtension=.PDF&FileName=Operations%202%20-%20Attachment%2010-%20Copy%20of%20Dispatch%20Flight%20Release-Master.PDF
- ATC 3 - Factual Report of Group Chairman (item 15, .PDF, 132 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=40267492&FileExtension=.PDF&FileName=ATC%203%20-%20Factual%20Report%20of%20Group%20Chairman-Master.PDF
- ATC 3 - Addendum 1 to ATC Group Chairman’s Factual Report (item 16, .PDF, 13 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=40273227&FileExtension=.PDF&FileName=ATC%203%20-%20Addendum%201%20to%20ATC%20Group%20Chairman%E2%80%99s%20Factual%20Report-Master.PDF
- ATC 3 - Addendum 2 to ATC Group Chairman’s Factual Report (item 17, .PDF, 13 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=40273228&FileExtension=.PDF&FileName=ATC%203%20-%20Addendum%202%20to%20ATC%20Group%20Chairman%E2%80%99s%20Factual%20Report-Master.PDF
- ATC 3 - Errata 1 - ATC Group Chairman’s Factual Report (item 18, .PDF, 13 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=40273300&FileExtension=.PDF&FileName=ATC%203%20-%20Errata%201%20-%20ATC%20Group%20Chairman%E2%80%99s%20Factual%20Report-Master.PDF
- ATC 3 - Attachment 1 - FAA Aircraft Accident Package (item 19, .PDF, 4.5 MB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=40271325&FileExtension=.PDF&FileName=ATC%203%20-%20Attachment%201%20-%20FAA%20Aircraft%20Accident%20Package-Redacted.PDF
- ATC 3 - Attachment 2 - Airspace Reclassification (item 20, .PDF, 1.8 MB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=40271328&FileExtension=.PDF&FileName=ATC%203%20-%20Attachment%202%20-%20Airspace%20Reclassification-Redacted.PDF
- ATC 3 - Attachment 3 - Budget Allocation (item 21, .PDF, 922 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=40271327&FileExtension=.PDF&FileName=ATC%203%20-%20Attachment%203%20-%20Budget%20Allocation-Redacted.PDF
- ATC 3 - Attachment 4 - Raleigh Durham Operational Error Report (item 22, .PDF, 6.7 MB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=40422055&FileExtension=.PDF&FileName=ATC%203%20-%20Attachment%204%20-%20Raleigh%20Durham%20Operational%20Error%20Report-Redacted.PDF
- ATC 3 - Attachment 5 LEX ATCT Staffing Memorandum dated 11/16/05 (item 23, .PDF, 229 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=40267265&FileExtension=.PDF&FileName=ATC%203%20-%20Attachment%205%20LEX%20ATCT%20Staffing%20Memorandum%20dated%2011%2F16%2F05-Master.PDF
- ATC 3 - Attachment 6 LEX ATCT Staff Study - Reduction of Operating Hours dated 03/24/05 (item 24, .PDF, 2.2 MB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=40267266&FileExtension=.PDF&FileName=ATC%203%20-%20Attachment%206%20LEX%20ATCT%20Staff%20Study%20-%20Reduction%20of%20Operating%20Hours%20dated%2003%2F24%2F05-Master.PDF
- ATC 3 - Attachment 7 January 12 Budget Email (item 25, .PDF, 1.6 MB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=40271326&FileExtension=.PDF&FileName=ATC%203%20-%20Attachment%207%20January%2012%20Budget%20Email-Redacted.PDF
- ATC 3 - Attachment 8: LEX Tower Position Diagrams (item 26, .PDF, 73 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=40267307&FileExtension=.PDF&FileName=ATC%203%20-%20Attachment%20%208%3A%20LEX%20Tower%20Position%20Diagrams-Master.PDF
- ATC 3 - Attachment 9 - LEX Airport Construction Diagram (item 27, .PDF, 324 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=40267308&FileExtension=.PDF&FileName=ATC%203%20-%20Attachment%20%209%20-%20LEX%20Airport%20Construction%20Diagram-Master.PDF
- ATC 3 - Attachment 10 Cell Phone Use (item 28, .PDF, 26 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=40267337&FileExtension=.PDF&FileName=ATC%203%20-%20Attachment%2010%20Cell%20Phone%20Use-Redacted.PDF
- ATC 3 - Attachment 11 - FAA NOTICE 7210.639 Consolidating Control Functions (item 29, .PDF, 196 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=40273278&FileExtension=.PDF&FileName=ATC%203%20-%20Attachment%2011%20-%20FAA%20NOTICE%207210.639%20Consolidating%20Control%20Functions-Redacted.PDF
- ATC 3 - Attachment 12 - LEX NOTICE N7220.124 Runway 22 Takeoff Clearance Procedure (item 30, .PDF, 115 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=40272394&FileExtension=.PDF&FileName=ATC%203%20-%20Attachment%2012%20-%20LEX%20NOTICE%20N7220.124%20Runway%2022%20Takeoff%20Clearance%20Procedure-Master.PDF
- ATC 3 - Attachment 13 - LEX ATCT Controller Statements for aircraft incident involving N8759E (item 31, .PDF, 217 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=40273277&FileExtension=.PDF&FileName=ATC%203%20-%20Attachment%2013%20-%20LEX%20ATCT%20Controller%20Statements%20for%20aircraft%20incident%20involving%20N8759E-Redacted.PDF
- ATC 3 - Attachment 14 - LEX ATCT Controller Statement for aircraft incident involving LXJ428 (item 32, .PDF, 84 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=40273230&FileExtension=.PDF&FileName=ATC%203%20-%20Attachment%2014%20-%20LEX%20ATCT%20Controller%20Statement%20for%20aircraft%20incident%20involving%20LXJ428-Redacted.PDF
- Witness 4 - Factual Report of Group Chairman (item 33, .PDF, 2.4 MB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=40267335&FileExtension=.PDF&FileName=Witness%204%20-%20Factual%20Report%20of%20Group%20Chairman-Redacted.PDF
- Meteorology 5 - Factual Report of Group Chairman (item 34, .PDF, 1.8 MB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=40267091&FileExtension=.PDF&FileName=Meteorology%205%20-%20Factual%20Report%20of%20Group%20Chairman-Master.PDF
- Meteorology 5 - Addendum to Factual Report (item 35, .PDF, 8 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=40272340&FileExtension=.PDF&FileName=Meteorology%205%20-%20Addendum%20to%20Factual%20Report-Master.PDF
- Survival Factors 6 - Factual Report of Group Chairman (item 36, .PDF, 1 photo, 505 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=40422056&FileExtension=.PDF&FileName=Survival%20Factors%206%20-%20Factual%20Report%20of%20Group%20Chairman-Redacted.PDF
- Survival Factors 6 - Errata to Factual Report of Group Chairman (item 37, .PDF, 57 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=40272649&FileExtension=.PDF&FileName=Survival%20Factors%206%20-%20Errata%20to%20Factual%20Report%20of%20Group%20Chairman-Master.PDF
- Survival Factors 6 - Attachment 1 - Photographs (item 38, .PDF, 1.6 MB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=40270950&FileExtension=.PDF&FileName=Survival%20Factors%206%20-%20Attachment%201%20-%20Photographs-Master.PDF
- Survival Factors 6 - Attachment 2 - Injury Chart (item 39, .PDF, 38 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=40422057&FileExtension=.PDF&FileName=Survival%20Factors%206%20-%20Attachment%202%20-%20Injury%20Chart-Master.PDF
- Survival Factors 6 - Attachment 3 - NOTAMs (item 40, .PDF, 3.2 MB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=40270931&FileExtension=.PDF&FileName=Survival%20Factors%206%20-%20Attachment%203%20-%20NOTAMs-Master.PDF
- Survival Factors 6 - Attachment 4 - 2001 and 2005 LEX Airport Master Records (item 41, .PDF, 489 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=40271461&FileExtension=.PDF&FileName=Survival%20Factors%206%20-%20Attachment%204%20-%202001%20and%202005%20LEX%20Airport%20Master%20Records-Redacted.PDF
- Survival Factors 6 - Attachment 5 - FAA Letters of Correction for LEX Annual Inspections (2003/2004/2005) (item 42, .PDF, 2.6 MB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=40271463&FileExtension=.PDF&FileName=Survival%20Factors%206%20-%20Attachment%205%20-%20FAA%20Letters%20of%20Correction%20for%20LEX%20Annual%20Inspections%20(2003%2F2004%2F2005)-Redacted.PDF
- Survival Factors 6 - Attachment 6 - LEX Signage And Marking Plan (item 43, .PDF, 1.5 MB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=40270934&FileExtension=.PDF&FileName=Survival%20Factors%206%20-%20Attachment%206%20-%20LEX%20Signage%20And%20Marking%20Plan-Master.PDF
- Survival Factors 6 - Attachment 7 - LEX Construction Summary (item 44, .PDF, 38 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=40270935&FileExtension=.PDF&FileName=Survival%20Factors%206%20-%20Attachment%207%20-%20LEX%20Construction%20Summary-Master.PDF
- Survival Factors 6 - Attachment 8 - LEX Inspection Checklist for 8/27/06 at 0514 (item 45, .PDF, 762 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=40422117&FileExtension=.PDF&FileName=Survival%20Factors%206%20-%20Attachment%208%20-%20LEX%20Inspection%20Checklist%20for%208%2F27%2F06%20at%200514-Master.PDF
- Survival Factors 6 - Attachment 9 - Photographs of LEX Repair Log (item 46, .PDF, 1.4 MB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=40270937&FileExtension=.PDF&FileName=Survival%20Factors%206%20-%20Attachment%209%20-%20Photographs%20of%20LEX%20Repair%20Log-Master.PDF
- Survival Factors 6 - Attachment 10 - LEX Operations Center Incident CAD Report (item 47, .PDF, 178 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=40271464&FileExtension=.PDF&FileName=Survival%20Factors%206%20-%20Attachment%2010%20-%20LEX%20Operations%20Center%20Incident%20CAD%20Report-Redacted.PDF
- Survival Factors 6 - Attachment 11 - LEX Operations Center Radio Communications Transcript (item 48, .PDF, 37 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=40270939&FileExtension=.PDF&FileName=Survival%20Factors%206%20-%20Attachment%2011%20-%20LEX%20Operations%20Center%20Radio%20Communications%20Transcript-Master.PDF
- Survival Factors 6 - Attachment 12 - LEX Airport Diagrams (item 49, .PDF, 348 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=40270940&FileExtension=.PDF&FileName=Survival%20Factors%206%20-%20Attachment%2012%20-%20LEX%20Airport%20Diagrams-Master.PDF
- Survival Factors 6 - Attachment 13 - FAA Email To Jeppesen (item 50, .PDF, 544 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=40270941&FileExtension=.PDF&FileName=Survival%20Factors%206%20-%20Attachment%2013%20-%20FAA%20Email%20To%20Jeppesen-Redacted.PDF
- Survival Factors 6 - Addendum 1 - Letter Of Clarification From LEX (item 51, .PDF, 114 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=40272648&FileExtension=.PDF&FileName=Survival%20Factors%206%20-%20Addendum%201%20-%20Letter%20Of%20Clarification%20From%20LEX-Redacted.PDF
- Survival Factors 6 - Addendum 2 - Interview of Mr. Tommy Dupree (FAA MEM-ADO) (item 52, .PDF, 21 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=40272753&FileExtension=.PDF&FileName=Survival%20Factors%206%20-%20Addendum%202%20-%20Interview%20of%20Mr.%20Tommy%20Dupree%20(FAA%20MEM-ADO)-Master.PDF
- Structures 7 - Factual Report of Group Chairman (item 53, .PDF, 51 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=40267280&FileExtension=.PDF&FileName=Structures%207%20-%20Factual%20Report%20of%20Group%20Chairman-Master.PDF
- Structures 7 - Errata to Factual Report of Group Chairman (item 54, .PDF, 9 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=40272663&FileExtension=.PDF&FileName=Structures%207%20-%20Errata%20to%20Factual%20Report%20of%20Group%20Chairman-Master.PDF
- Structures 7 - Attachment 1, Wreckage Distribution Diagram (item 55, .PDF, 1.1 MB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=40270205&FileExtension=.PDF&FileName=Structures%207%20-%20Attachment%201,%20Wreckage%20Distribution%20Diagram-Master.PDF
- Structures 7 - Attachment 2, Photo Documentation (item 56, .PDF, 19 photos, 2.2 MB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=40267288&FileExtension=.PDF&FileName=Structures%207%20-%20Attachment%202,%20Photo%20Documentation-Master.PDF
- Structures 7 - Attachment 3, Aircraft Information (item 57, .PDF, 707 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=40272664&FileExtension=.PDF&FileName=Structures%207%20-%20Attachment%203,%20Aircraft%20Information-Master.PDF
- Powerplants 8 - Factual Report of Group Chairman (item 58, .PDF, 24 photos, 2.9 MB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=40267441&FileExtension=.PDF&FileName=Powerplants%208%20-%20Factual%20Report%20of%20Group%20Chairman-Master.PDF
- Systems 9 - Systems Group Chairman's Factual Report (item 59, .PDF, 2 photos, 197 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=40267199&FileExtension=.PDF&FileName=Systems%209%20-%20Systems%20Group%20Chairman%27s%20Factual%20Report-Master.PDF
- Flight Data Recorder 10 - Factual Report of Group Chairman (item 60, .PDF, 2 photos, 530 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=40267362&FileExtension=.PDF&FileName=Flight%20Data%20Recorder%2010%20-%20Factual%20Report%20of%20Group%20Chairman-Master.PDF
- Flight Data Recorder 10 - Attachment 1: Tabular Data (item 61, .CSV, 6.0 MB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=40267479&FileExtension=.csv&FileName=Flight%20Data%20Recorder%2010%20-%20Attachment%201%3A%20Tabular%20Data-Master.csv
- Maintenance Records 11 - Factual Report of Group Chairman (item 62, .PDF, 46 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=40267166&FileExtension=.PDF&FileName=Maintenance%20Records%2011%20-%20Factual%20Report%20of%20Group%20Chairman-Master.PDF
- Maintenance Records 11 - Attachment 1 - Air Carrier Certificates (item 63, .PDF, 149 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=40267161&FileExtension=.PDF&FileName=Maintenance%20Records%2011%20-%20Attachment%201%20-%20Air%20Carrier%20Certificates-Redacted.PDF
- Maintenance Records 11 - Attachment 2 - Supplemental Type Certificate (item 64, .PDF, 802 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=40267162&FileExtension=.PDF&FileName=Maintenance%20Records%2011%20-%20Attachment%202%20-%20Supplemental%20Type%20Certificate-Redacted.PDF
- Maintenance Records 11 - Attachment 3 - Airplane Log Sheets (item 65, .PDF, 1.6 MB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=40271318&FileExtension=.PDF&FileName=Maintenance%20Records%2011%20-%20Attachment%203%20-%20Airplane%20Log%20Sheets-Redacted.PDF
- Maintenance Records 11 - Attachment 4 - Weight and Balance (item 66, .PDF, 613 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=40267164&FileExtension=.PDF&FileName=Maintenance%20Records%2011%20-%20Attachment%204%20-%20Weight%20and%20Balance-Redacted.PDF
- Cockpit Voice Recorder 12 - Factual Report of Group Chairman (Transcript) (item 67, .PDF, 527 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=40271038&FileExtension=.PDF&FileName=Cockpit%20Voice%20Recorder%2012%20-%20Factual%20Report%20of%20Group%20Chairman%20(Transcript)-Master.PDF
- Cockpit Voice Recorder 12 - Errata to CVR Factual Report (item 68, .PDF, 12 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=40273020&FileExtension=.PDF&FileName=Cockpit%20Voice%20Recorder%2012%20-%20Errata%20to%20CVR%20Factual%20Report-Master.PDF
- Aircraft Performance 13 - Wreckage Site Factual Report of Group Chairman (item 69, .PDF, 7 photos, 1.9 MB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=40267324&FileExtension=.PDF&FileName=Aircraft%20Performance%2013%20-%20Wreckage%20Site%20Factual%20Report%20of%20Group%20Chairman-Master.PDF
- Aircraft Performance 13 - Performance Study of Group Chairman (item 70, .PDF, 1 photo, 316 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=40270628&FileExtension=.PDF&FileName=Aircraft%20Performance%2013%20-%20Performance%20Study%20of%20Group%20Chairman-Master.PDF
- Aircraft Performance 13 - Attachment 1 - CVR Overlay (item 71, .PDF, 1 photo, 102 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=40271312&FileExtension=.PDF&FileName=Aircraft%20Performance%2013%20-%20Attachment%201%20-%20CVR%20Overlay-Master.PDF
- Human Performance 14 - Factual Report of Group Chairman (item 72, .PDF, 132 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=40422118&FileExtension=.PDF&FileName=Human%20Performance%2014%20-%20Factual%20Report%20of%20Group%20Chairman-Master.PDF
- Human Performance 14 - Addendum 1 (item 73, .PDF, 23 photos, 2.3 MB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=40273659&FileExtension=.PDF&FileName=Human%20Performance%2014%20-%20Addendum%201-Master.PDF
- Human Performance 14 - Addendum 2 (item 74, .PDF, 71 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=40273660&FileExtension=.PDF&FileName=Human%20Performance%2014%20-%20Addendum%202-Master.PDF
- Statement of Party Representatives to NTSB Investigation (item 75, .PDF, 395 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=40271790&FileExtension=.PDF&FileName=Statement%20of%20Party%20Representatives%20to%20NTSB%20Investigation-Redacted.PDF
- Party Submission - ALPA (item 76, .PDF, 12 photos, 2.6 MB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=40274468&FileExtension=.PDF&FileName=Party%20Submission%20-%20ALPA-Redacted.PDF
- Party Submission - Blue Grass Airport (item 77, .PDF, 64 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=40274469&FileExtension=.PDF&FileName=Party%20Submission%20-%20Blue%20Grass%20Airport-Redacted.PDF
- Party Submission - Bombardier (item 78, .PDF, 21 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=40274470&FileExtension=.PDF&FileName=Party%20Submission%20-%20Bombardier-Master.PDF
- Party Submission - Comair (item 79, .PDF, 91 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=40274471&FileExtension=.PDF&FileName=Party%20Submission%20-%20Comair-Redacted.PDF
- Party Submission - Comair Attachment 1 (item 80, .PDF, 123 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=40274478&FileExtension=.PDF&FileName=Party%20Submission%20-%20Comair%20Attachment%201-Redacted.PDF
- Party Submission - Comair Attachment 2 (item 81, .PDF, 112 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=40274476&FileExtension=.PDF&FileName=Party%20Submission%20-%20Comair%20Attachment%202-Master.PDF
- Party Submission - Comair Attachment 3 (item 82, .PDF, 9 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=40274660&FileExtension=.PDF&FileName=Party%20Submission%20-%20Comair%20Attachment%203-Master.PDF
- Party Submission - Teamsters 513 (item 83, .PDF, 16 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=40274472&FileExtension=.PDF&FileName=Party%20Submission%20-%20Teamsters%20513-Master.PDF
- Party Submission - GE (item 84, .PDF, 43 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=40422119&FileExtension=.PDF&FileName=Party%20Submission%20-%20GE-Redacted.PDF
- Party Submission - NATCA (item 85, .PDF, 49 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=40274474&FileExtension=.PDF&FileName=Party%20Submission%20-%20NATCA-Master.PDF
- UA 1404 at MIA (item 86, .PDF, 5.3 MB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=40279538&FileExtension=.PDF&FileName=UA%201404%20at%20MIA-Redacted.PDF
- NATCA Petition for Reconsideration (item 87, .PDF, 847 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=40422120&FileExtension=.PDF&FileName=NATCA%20Petition%20for%20Reconsideration-Redacted.PDF
- NATCA Reconsideration Attachments (item 88, .PDF, 1.2 MB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=40422121&FileExtension=.PDF&FileName=NATCA%20Reconsideration%20Attachments-Redacted.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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