ASN logo
Accident
Last updated: 21 October 2017
Status:Definitief
Datum:donderdag 13 november 1986
Tijd:12:25
Type:Silhouette image of generic L101 model; specific model in this crash may look slightly different
Lockheed L-1011 TriStar 1
Luchtvaartmaatschappij:Delta Air Lines
Registratie: N714DA
Constructienummer: 1090
Bouwjaar: 1974
Bemanning:slachtoffers: 0 / inzittenden: 23
Passagiers:slachtoffers: 0 / inzittenden: 114
Totaal:slachtoffers: 0 / inzittenden: 137
Schade: Groot
Gevolgen: Repaired
Plaats:Newark International Airport, NJ (EWR) (   Verenigde Staten)
Fase: Landing (LDG)
Soort vlucht:Binnenlandse lijnvlucht
Vliegveld van vertrek:Atlanta-William B. Hartsfield International Airport, GA (ATL/KATL), Verenigde Staten
Vliegveld van aankomst:Newark International Airport, NJ (EWR/KEWR), Verenigde Staten
Vluchtnummer:DL194
Beschrijving:
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

Bronnen:
» NTSB


Veiligheidsmaatregelen

NTSB issued 3 Safety Recommendations

Show all AD's and Safety Recommendations

Foto's

Add your photo of this accident or aircraft

Kaart
Deze kaart geeft het vliegveld van vetrek weer en de geplande bestemming van de vlucht. De lijn tussen de vliegvelden geeft niet de exacte vliegroute weer.
De afstand tussen Atlanta-William B. Hartsfield International Airport, GA en Newark International Airport, NJ bedraagt 1191 km (744 miles).

This information is not presented as the Flight Safety Foundation or the Aviation Safety Network’s opinion as to the cause of the accident. It is preliminary and is based on the facts as they are known at this time.
languages: languages

Share