Project Blue Book Case #2601. On June 22, 1953, an unidentified object was observed at Goose Bay Air Force Base — the fourth Blue Book unknown from this critical Arctic defense installation (joining Cases #969 from 1951, #2555 from 1953, and #3969 from 1956). With four cases, Goose Bay held the record for the most repeat unknowns from any single military installation in the Blue Book database.
The Arctic interceptor base, whose sole mission was to identify and intercept every aerial object approaching North America from the northeast, failed to identify objects in its own airspace on four separate occasions across five years. No other military base's failure rate in its core mission was as thoroughly documented.
The case was classified "Unknown."