Investigation Summary
Flight 663 was executing the 'Dutch Seven' departure, a standard procedure involving turns over the ocean to avoid noise-sensitive areas. Simultaneously, Pan Am Flight 212 was descending toward JFK. Air Traffic Control provided traffic advisories to both crews, but the relative geometry of the two aircraft created a lethal optical illusion. As the DC-7 turned, the lights of the Pan Am 707 appeared to be on a direct collision course. The Eastern crew initiated a violent evasive roll and pull-up. Because they were turning away from the lights of Long Island into a 'black hole' environment over the sea, the pilots lost their sense of pitch and bank. The aircraft entered an unusual attitude from which the crew could not recover before striking the water.
Final Conclusions
The Civil Aeronautics Board (CAB) concluded that the probable cause was the evasive action taken by the crew to avoid an apparent collision. This maneuver, prompted by a visual illusion, placed the aircraft in an extreme attitude that resulted in spatial disorientation and subsequent impact with the sea.
Photographic Evidence (1)
Video Analysis
Eastern Air Lines Flight 663 News Report & Aftermath Footage | 8 February 1965 Jones Beach, New York — Historical news footage and accident description of the Eastern Air Lines Flight 663 crash near Jones Beach, including interviews regarding the visual conditions and the near-miss with Pan Am Flight 212.
If playback is blocked, the owner has disabled embedding — use the link above.
Airframe & Maintenance
Crew Experience
Captain
19-year veteran of Eastern Air Lines.
First Officer
9-year veteran of Eastern Air Lines.
Flight Engineer
Had 141 hours of flight engineer time.
Systems & Failure Modes
Visual Perspective / Illusion
The converging flight paths and the Pan Am aircraft's turn created a false perception of an imminent mid-air collision.
Spatial Orientation
The crew's reliance on outside visual cues in a dark, featureless environment led to a loss of attitude awareness during the evasive turn.
Interesting Facts
- 01The accident is the third-worst involving the Douglas DC-7 airframe.
- 02The crash occurred in a 'black hole' environment where the lack of ground lights made visual orientation difficult.
- 03The two aircraft never actually collided; the Pan Am 707 landed safely at JFK.
- 04The DC-7 disintegrated upon impact with the sea, leaving no survivors among the 84 occupants.
Safety Actions & Advisories
Spatial Disorientation Awareness
While the accident highlighted the dangers of night visual illusions and the need for pilots to trust instruments, the CAB issued no formal safety recommendations in its final report.