January 6, 1969
Chu Lai harbor, Quang Nam Province, South Vietnam

Chu Lai SATS airfield, circa 1965 — the 23rd Infantry Division (Americal) base where Tower 72 sentries logged a silent egg-shaped UAP landing near the ammunition supply point at 01:52 AM on January 6, 1969. — U.S. Marine Corps / Wikimedia Commons (public domain)
Craft morphology
No NHI encounter documented for this event.