Beschrijving:
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: | zaterdag 4 december 1965 |
| Tijd: | 16:19 |
| Type: |  Lockheed L-1049C Super Constellation |
| Luchtvaartmaatschappij: | Eastern Air Lines |
| Registratie: | N6218C |
| Constructienummer: | 4526 |
| Bouwjaar: | 1953 |
| Aantal vlieguren: | 32884 |
| Motoren: | 4 Wright R-3350 (972TC18DA) |
| Bemanning: | slachtoffers: 1 / inzittenden: 5 |
| Passagiers: | slachtoffers: 3 / inzittenden: 49 |
| Totaal: | slachtoffers: 4 / inzittenden: 54 |
| Schade: | Afgeschreven |
| Gevolgen: | Written off (damaged beyond repair) |
| Plaats: | North Salem, NY ( Verenigde Staten)
|
| Fase: | Kruisvlucht (ENR) |
| Soort vlucht: | Binnenlandse lijnvlucht |
| Vliegveld van vertrek: | Boston-Logan International Airport, MA (BOS/KBOS), Verenigde Staten |
| Newark International Airport, NJ (EWR/KEWR), Verenigde Staten | |
| Vluchtnummer: | 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:
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Bronnen:
» ICAO Circular 88-AN/74 Volume III (123-136)Foto's
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 Boston-Logan International Airport, MA en Newark International Airport, NJ bedraagt 320 km (200 miles).
Accident location: Global; accuracy within tens or hundreds of kilometers.
De afstand tussen Boston-Logan International Airport, MA en Newark International Airport, NJ bedraagt 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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