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Last updated: 7 December 2021
Statuts:Enquête Officielle
Date:dimanche 27 août 2006
Heure:06:07
Type/Sous-type:Silhouette image of generic CRJ1 model; specific model in this crash may look slightly different
Canadair CL-600-2B19 Regional Jet CRJ-100ER
Operated by:Comair
On behalf of:Delta Connection
Immatriculation: N431CA
Numéro de série: 7472
Année de Fabrication: 2001
Heures de vol:12048
Cycles:14536
Moteurs: 2 General Electric CF34-3A1
Equipage:victimes: 2 / à bord: 3
Passagers:victimes: 47 / à bord: 47
Total:victimes: 49 / à bord: 50
Dégats de l'appareil: Détruit
Conséquences: Written off (damaged beyond repair)
Lieu de l'accident:Lexington-Blue Grass Airport, KY (LEX) (   Etats-Unis d'Amérique)
Élévation des lieux de l'accident: 298 m (978 feet) amsl
Phase de vol: Au décollage (TOF)
Nature:Transport de Passagers Nat.
Aéroport de départ:Lexington-Blue Grass Airport, KY (LEX/KLEX), Etats-Unis d'Amérique
Aéroport de destination:Atlanta Hartsfield-Jackson International Airport, GA (ATL/KATL), Etats-Unis d'Amérique
Numéro de vol:5191
Détails:
Weather at Lexington-Blue Grass Airport (LEX) was fine on the morning of August 27 with a small shower approaching from the West.
It was still dark just after 06:00 as Comair flight 5191 taxied out for takeoff. The flight was cleared for a runway 22 departure, which is Lexington's main runway. Because the runway was repaved just recently with an added safety area at the approach end of runway 22, one taxiway was no longer in use. Since August 20 the taxi route to runway 22 was changed. The crew inadvertently lined up on the shorter (3500 x 75 feet) and unlit runway 26. The first officer commenced the takeoff roll. One of the pilots made a remark about the lack of runway light illumination, but the takeoff was continued. The fully laden CRJ was not able to rotate within the 3500 feet runway distance and continued past the runway end. It knocked down a metal fence and continued onto a field. The airplane struck several trees and burst into flames on a working farm.

NASA ASRS records show a possible similar scenario when some 13 years earlier a twin engine passenger jet inadvertently taxied into position on runway 26 at LEX while being cleared for an immediate runway 22 takeoff. The tower controller noticed this and cancelled the takeoff clearance. According to the report "Possible contributing factors were poor visibility and wx (rain), confusing rwy intxn and twr's request for an immediate tkof."
In the meantime work had been performed on the runways at LEX. Since October 2003 for instance a runway resurfacing project was started. The project also added 600 feet of safety area at each runway end.

Probable Cause:

PROBABLE CAUSE: "The flight crew'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 this accident were the flight crew's nonpertinent conversation during taxi, which resulted in 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."

Accident investigation:
cover
Investigating agency: NTSB
Status: Investigation completed
Duration: 10 months
Accident number: NTSB AAR-07-05
Download report: Final report

Sources:
» NTSB

METAR Weather report:
09:54 UTC / 05:54 local time:
KLEX 270954Z 20007KT 8SM FEW090 SCT120 24/19 A3000


Opérations de secours

NTSB issued 13 Safety Recommendations

Show all...

Photos

photo of Canadair-CRJ-100ER-N431CA
accident date: 27-08-2006
type: Canadair CRJ-100ER
registration: N431CA
photo of Canadair-CRJ-100ER-N431CA
accident date: 27-08-2006
type: Canadair CRJ-100ER
registration: N431CA
photo of Canadair-CRJ-100ER-N431CA
accident date: 27-08-2006
type: Canadair CRJ-100ER
registration: N431CA
photo of Canadair-CRJ-100ER-N431CA
accident date: 27-08-2006
type: Canadair CRJ-100ER
registration: N431CA
photo of Canadair-CRJ-100ER-N431CA
accident date: 27-08-2006
type: Canadair CRJ-100ER
registration: N431CA
photo of Canadair-CRJ-100ER-N431CA
accident date: 27-08-2006
type: Canadair CRJ-100ER
registration: N431CA
photo of Canadair-CRJ-100ER-N431CA
LEX airport overview
photo of Canadair-CRJ-100ER-N431CA
Taxiways leading to runways 22 and 26
photo of Canadair-CRJ-100ER-N431CA
Groundpath as Flight 5191 aligned with runway 26
photo of Canadair-CRJ-100ER-N431CA
Seat map Canadair CRJ-100ER N431CA
photo of Canadair-CRJ-100ER-N431CA
accident date: 27-08-2006
type: Canadair CRJ-100ER
registration: N431CA
 

Plan
Ce plan montre l'aéroport de départ ainsi que la supposée destination du vol. La ligne fixe reliant les deux aéroports n'est pas le plan de vol exact.
La distance entre Lexington-Blue Grass Airport, KY et Atlanta Hartsfield-Jackson International Airport, GA est de 486 km (304 miles).
Accident location: Exact; deduced from official accident report.

Les informations ci-dessus ne représentent pas l'opinion de la 'Flight Safety Foundation' ou de 'Aviation Safety Network' sur les causes de l'accident. Ces informations prélimimaires sont basées sur les faits tel qu'ils sont connus à ce jour.
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CRJ100

  • 1054+ built
  • 6ème loss
  • 5ème accident fatal
  • le accident 2ème le plus grave (à ce moment là)
  • le accident 2ème le plus grave (en ce moment)
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 Etats-Unis d'Amérique
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  • le accident 62ème le plus grave (en ce moment)
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