Unfallbericht:
TWA Boeing 707 N748TW and Eastern Constellation N6218C approached Carmel VORTAC at FL110 resp. FL100. Due to an optical illusion caused by the up-slope effect of cloud tops, the Eastern 1st officer thought they were on collision course with the TWA jet. He pulled up the Constellation. The reaction of the TWA crew was to roll to the right, followed by a left roll down. Both aircraft collided. The Boeing made a safe landing.
PROBABLE CAUSE: "Misjudgement of altitude separation by the crew of EA853 because of an optical illusion created by the up-slope effect of cloud tops resulting in an evasive manoeuvre by the EA853 crew and a reactionary evasive manoeuvre by the TW42 crew."
| Status: | Accident investigation report completed and information captured |
| Datum: | Samstag 4 Dezember 1965 |
| Zeit: | 16:19 |
| Flugzeugtyp: |  Lockheed L-1049C Super Constellation |
| Fluggesellschaft: | Eastern Air Lines |
| Kennzeichen: | N6218C |
| Werknummer: | 4526 |
| Baujahr: | 1953 |
| Betriebsstunden: | 32884 |
| Triebwerk: | 4 Wright R-3350 (972TC18DA) |
| Besatzung: | Todesopfer: 1 / Insassen: 5 |
| Fluggäste: | Todesopfer: 3 / Insassen: 49 |
| Gesamt: | Todesopfer: 4 / Insassen: 54 |
| Sachschaden: | Zerstört |
| Konsequenzen: | Written off (damaged beyond repair) |
| Unfallort: | North Salem, NY ( USA)
|
| Flugphase: | Während des Fluges (ENR) |
| Betriebsart: | Inländischer planmäßiger Passagierflug |
| Flug von: | Boston-Logan International Airport, MA (BOS/KBOS), USA |
| Newark International Airport, NJ (EWR/KEWR), USA | |
| Flugnummer: | EA853 |
TWA Boeing 707 N748TW and Eastern Constellation N6218C approached Carmel VORTAC at FL110 resp. FL100. Due to an optical illusion caused by the up-slope effect of cloud tops, the Eastern 1st officer thought they were on collision course with the TWA jet. He pulled up the Constellation. The reaction of the TWA crew was to roll to the right, followed by a left roll down. Both aircraft collided. The Boeing made a safe landing.
Probable Cause:
PROBABLE CAUSE: "Misjudgement of altitude separation by the crew of EA853 because of an optical illusion created by the up-slope effect of cloud tops resulting in an evasive manoeuvre by the EA853 crew and a reactionary evasive manoeuvre by the TW42 crew."
Accident investigation:
|
Informationsquelle:
» ICAO Circular 88-AN/74 Volume III (123-136)Fotos
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 Boston-Logan International Airport, MA to Newark International Airport, NJ as the crow flies is 320 km (200 miles).
Accident location: Global; accuracy within tens or hundreds of kilometers.
Distance from Boston-Logan International Airport, MA to Newark International Airport, NJ as the crow flies is 320 km (200 miles).
Accident location: Global; accuracy within tens or hundreds of kilometers.
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.
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