President Reagan, in his weekly radio talk yesterday, noted the second anniversary of the United States' intervention in Grenada -- but he didn't mention a local ceremony that was a fitting, if coincidental, recognition of the event.

At Andrews Air Force Base on Friday afternoon, Vice President Bush greeted 19 Grenadian Sea Scouts and five of their adult leaders who have been visiting Washington. It was the first Boy Scout visit Metro Scene had ever heard of where the State Department was providing support and making arrangements.

The Grenadian group went to Andrews with several members of host Scout Troop 1967, from Fairfax County, which is sponsored by the Kings Park West Civic Association. Troop leader Bob Forrester said arrangements were chaotic for a time -- the meeting was first to be held in the White House Rose Garden, then at the vice president's home on the Naval Observatory grounds, then shifted back to the White House, and finally to Andrews, where the vice president was departing at 4 p.m. on a trip.

Forrester, who was planning to take his own troop on a weekend camp outing, wasn't thrilled by having to make the late afternoon foray into Maryland followed by a return over the congested Woodrow Wilson Bridge to Virginia.

But everything turned out well. Bush shook hands with some and threw his arm around others from both the host and visitor groups, and the event was pronounced a success.