ASN logo
Accident
Last updated: 17 October 2017
Estado:Final
Fecha:jueves 13 noviembre 1986
Hora:12:25
Tipo:Silhouette image of generic L101 model; specific model in this crash may look slightly different
Lockheed L-1011 TriStar 1
Operador:Delta Air Lines
Registración: N714DA
Numéro de série: 1090
Año de Construcción: 1974
Tripulación:Fatalidades: 0 / Ocupantes: 23
Pasajeros:Fatalidades: 0 / Ocupantes: 114
Total:Fatalidades: 0 / Ocupantes: 137
Daños en la Aeronave: Considerable
Consecuencias: Repaired
Ubicación:Newark International Airport, NJ (EWR) (   Estados Unidos de América)
Fase: Aterrizaje (LDG)
Naturaleza:Vuelo Doméstico Programado
Aeropuerto de Salida:Atlanta-William B. Hartsfield International Airport, GA (ATL/KATL), Estados Unidos de América
Aeropuerto de Llegada:Newark International Airport, NJ (EWR/KEWR), Estados Unidos de América
Número de Vuelo:DL194
Descripción:
The rear main spar of the right wing failed as Delta flight 194 touched down on runway 29 at Newark Airport. The pilots stated that there was moderate turbulence on final approach and initial touchdown was on the right main gear first. The touchdown was firm but not hard which was confirmed from the 1.4g recorded on the DFDR. The 1.4g force is well within the landing gear certification limits.
The spar web failure was caused by a fatigue crack that originated at a 'hi-loc' fastener hole located at the lower inboard corner of a doubler that surrounds the fuel filler valve which is mounted vertically on the spar web. The fatigue zone in the spar web had progressed about 6 3/4 inches before the web failed as the airplane touched down. The fracture in the spar web extended diagonally downward and outboard at 45 degrees from inboard wing station 241.0 to inboard station 293.5. The flight crew did not report any airplane malfunction during the flight.

Probable Cause:

PROBABLE CAUSE:
wing..fatigue
acft/equip,inadequate design..manufacturer

Fuentes:
» NTSB


Subsiguiente / acciones de seguridad

NTSB issued 3 Safety Recommendations

Show all AD's and Safety Recommendations

Fotos

Add your photo of this accident or aircraft

Map
This map shows the airport of departure and the intended destination of the flight. The line between the airports does not display the exact flight path.
Distance from Atlanta-William B. Hartsfield International Airport, GA to Newark International Airport, NJ as the crow flies is 1191 km (744 miles).

languages: languages

Share