Accident
Last updated: 21 October 2014
Statuts:Enquête Officielle
Date:lundi 3 décembre 1990
Heure:13:45
Type/Sous-type:Silhouette image of generic B722 model; specific model in this crash may look slightly different
Boeing 727-251
Compagnie:Northwest Airlines
Immatriculation: N278US
Numéro de série: 21157/1173
Année de Fabrication: 1975-11-07 (15 years 1 month)
Heures de vol:37310
Cycles:27933
Moteurs: 3 Pratt & Whitney JT8D-15A
Equipage:victimes: 0 / à bord: 8
Passagers:victimes: 0 / à bord: 146
Total:victimes: 0 / à bord: 154
Dégats de l'appareil: Substantiels
Conséquences: Repaired
Lieu de l'accident:Detroit-Metropolitan Wayne County Airport, MI (DTW) (   Etats-Unis d'Amérique) show on map
Phase de vol: Au décollage (TOF)
Nature:Transport de Passagers Nat.
Aéroport de départ:Detroit-Metropolitan Wayne County Airport, MI (DTW/KDTW), Etats-Unis d'Amérique
Aéroport de destination:Memphis International Airport, TN (MEM/KMEM), Etats-Unis d'Amérique
Numéro de vol: 299
Détails:
Northwest Airlines Flight 1482, a DC-9 bound for Pittsburgh received clearance to taxi from Gate C18 to runway 03C via taxiway Oscar 6, Foxtrot and Xray, at 13:35. In dense fog (about 1/4mile visibility) the crew missed the Oscar 6 taxiway and entered the Outer taxiway. Ground control then instructed them to head for Oscar 4 and make a right turn onto Xray. At the Oscar 4 intersection NW1482 turned right, but entered the active runway 03C instead of taxiway Xray.
Suddenly both pilots found out they had taxied the wrong way, and contacted ground control. When ground control found out that NW1482 was on the active runway, the crew were told to leave that runway immediately. About 5 seconds later the DC-9 crew saw a Boeing 727 coming right at them.
The Boeing 727 (Northwest Fight 299 to Memphis) had just received take-off clearance and was traveling at a speed of over 100 knots when the collision took place.
The 727's right wingtip was sheared off when striking the right-hand side of the DC-9. The remainder of the wing cut through the fuselage just below the bottom of the windows and cut off the no. 2 engine. A fire erupted in the DC-9 which caused the fuselage to burn out from just aft of the cockpit to just forward of the aft bulkhead. The Boeing 727 didn't catch fire but just sustained damage to the left wing .


PROBABLE CAUSE:"A lack of proper crew coordination, including a virtual reversal of roles by the DC-9 pilots, which led to their failure to stop taxiing their airplane and alert the ground controller of their positional uncertainty in a timely manner before and after intruding onto the active runway.
Contributing to the cause of the accident were (1) deficiencies in the air traffic control services provided by the Detroit tower, including failure of the ground controller to take timely action to alert the local controller to the possible runway incursion, inadequate visibility observations, failure to use progressive taxi instructions in low-visibility conditions, and issuance of inappropriate and confusing taxi instructions compounded by inadequate backup supervision for the level of experience of the staff on duty; (2) deficiencies in the surface markings, signage, and lighting at the airport and the failure of Federal Aviation Administration surveillance to detect or correct any of these deficiencies; and (3) failure of Northwest Airlines, Inc., to provide adequate cockpit resource management training to their line aircrews.
Contributing to the fatalities in the accident was the inoperability of the DC-9 internal tail cone release mechanism. Contributing to the number and severity of injuries was the failure of the crew of the DC-9 to properly execute the passenger evacuation." (NTSB)

Sources:
» ICAO Adrep 3/94 (#88)
» NTSB/AAR-91/05


Opérations de secours

NTSB issued 23 Safety Recommendations

Show all AD's and Safety Recommendations

Photos

photo of Boeing 727-251 N278US
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Plan
Ce plan montre l'aéroport de départ ainsi que la supposé destination du vol. La ligne fixe reliant les deux aéroports n'est pas le plan de vol exact.
La distance entre Detroit-Metropolitan Wayne County Airport, MI et Memphis International Airport, TN est de 976 km (610 miles).

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 tels qui sont connus à ce jour.
languages: English Français Nederlands Deutsch Espanol

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