21 January 1977 - Bogota, Colombia -   Multiple sightings, radars, airliner report, radar and visual sightings, reaction to landing lights

21 January 1977 21:10 - Bogota Airport, Colombia -   Avianca incident.

17 February 1977 Before 0400 - Gulf of Mexico -   Radar/visual confirmation.

7 March 1977 - Chaumont, France -   Object made passes at Mirage IV

7 March 1977 20:34 - Luxell, Chaumont, France -   Very bright light with dark shape behind approached warplane twice, travelling at Mach 1.4, then Mach 2.0. Invisible to radar. Pilot felt observed.

14 April 1977 02:00 - Basel, Netherlands -   SAS 310 incident.

23 April 1977 21:30 - Anchorage, Alaska, USA -   NWA incident.

In May 1977 Night - Pinecastle Range, Florida, USA -   An object was tracked by radar and sighted visually. Multiple independent witnesses. One object, about 80 feet across, was observed by over 12 male military witnesses near a missile for 20 minutes (Collins).

28 June 1977 Night - Tehran, Iran -   Residents in Tehran report seeing strange UFO, later confirmed on radar in Teheran, no further explanation.

24 August 1977 17:45 - Koping, Airfield, Sweden -   Two pilots saw and military radar tracked object 10-15 m long, distance 2000 m on course north northeast, 100 m altitude. No sound, speed 400-500 kph. Fuselage shaped.

9 September 1977 Around 0900 - Santa Barbara, California , USA -   UAL 168 incident.

10 September 1977 - Fremont, California , USA -   Oakland ATC incident.

10 September 1977 - Vandenburg Afb E, California , USA -   Airline Pilots incident.

22 September 1977 15:00 - Omaha, Nebraska, USA -   An object was tracked by radar and sighted visually. An unidentified object was tracked by radar and sighted visually.

26 October 1977 - Dallas, Texas, USA -   Private pilot and T-38 pilot encounter object, electromagnetic effects

11 November 1977 19:47 - Jakarta Bay, Halim A, Indonesia -   ATC incident.

8 December 1977 - Oxnard, California, USA -   FAA radar tracks UFO

9 December 1977 - Kununurra, Western Australia, Australia -   Oval passed Cessna 206

17 December 1977 - Colorado, USA -   An unidentified object was tracked by radar and sighted visually.

17 December 1977 - -   Strong radar returns of UFO

22 December 1977 - -   Circular object paced TWA flight for 20 minutes

27 December 1977 22:45 - Charlotte, North Carolina, USA -   Radar/visual confirmation, police helicopter. two very bright cones of bright light moved rapidly. Hendry suggested prank balloon as explanation, but UFO too bright, emitted energetic ball of light. Explanation: Prank.