Crestview Elementary, North Dade County, Florida circa 1966/1967. Second-hand account of taped interview with eye witness

This reports describes a second-hand account of a sighting at Crestview Elementary school in North Dade county, Florida, circa 1966/1967.
In 1971 as 6th-grade student at Crestview Elementary our teacher played a tape recording of an interview she gave regarding an event at the school a few years before.  The teacher was Mrs. ((name deleted)) first name not recalled) and the interviewer is unknown.
During the interview, Mrs. ((name deleted)) described a unidentified aircraft landing in the broad, open field north of the school.   She discussed strange features of the aircraft (specifics not recalled) and the fear and panic that gripped the school during the initial moments after landing.   She also recalled the arrival of "military personnel" at the school shortly after the landing.   The aircraft was still on the ground while soldiers patrolled the corridors (note: the school was a single story school with open-air corridors around a central courtyard.  Several classes - included Mrs. ((name deleted)) at the time - had wall-to-wall windows that looked over the field to the north).   After a considerably long-time (several hours), the aircraft departed at a incredibly high-rate of speed ("almost instantaneously") and the soldiers also left.
The taped interview lasted 30-45 minutes and afterwards Mrs. ((name deleted)) took questions from her class and reiterated several points she made in the interview.   During this whole time several other teachers came into our classroom and listened - clearly uncomfortable.   These teachers did, however, verify the class details of Mrs. ((name deleted)) account.
Witness indicates that date is approximate.  PD