On 26 October 1978, a constable in Clarenville, Newfoundland reported a brightly lit object, investigated by the RCMP.

Clarenville matters because it is an RCMP-investigated report.
Documented
A constable reported a brightly lit object
Documented
The RCMP investigated
Debated
The identity of the object
Unverified
Extraterrestrial origin
Sources are kept in separate layers: official and contemporary material is documented; secondary UFO literature is treated as debated, not as primary evidence.
Documented source.