Based on the Coast Guard Historian’s timeline, https://www.history.uscg.mil/research/chronology/
With inspiration from Mike Kelso

February 27

1925  An Act of Congress repealed the law providing a ration allowance for keepers of lighthouses and increased their salaries correspondingly.  This change was not only advantageous to the light keepers, but also simplified office work.

PB-1G, CG-77249, on runway in Argentia, Newfoundland, running up engines, International Ice Patrol, 15 February 1954. Photo No. 021554-01. Original caption states: “U.S. Coast Guard plane, PB-1G (B-17), taking off on a 9-hour patrol.”

1949  Aerial ice observation flights by long-range aircraft operated from Argentia, Newfoundland.  An International Ice Patrol by vessels was neither required nor established during the 1949 season and it was the first time that aircraft alone conducted the ice observation service.

The U.S. Coast Guard Cutter USCGC Coos Bay (WAVP-376). Originally USS Coos Bay (AVP-25) was a Barnegat-class small seaplane tender commissioned by the U.S. Navy for use in the Second World War. From 1949 to 1966 she was loaned to the U.S. Coast Guard, first designated WAVP-376, later WHEC-376. After her return to the Navy, the Coos Bay was struck from the Naval Register and on 9 January 1968 she was expended as target by the guided missile destroyer USS Claude V. Ricketts (DDG-5), and 35 aircraft, 200 km (120 mi) off the coast of Virginia (USA).

1953  CGC Coos Bay, on Ocean Station Echo, about half-way between Bermuda and the Azores, rescued the crew of 10 from the U.S. Navy patrol plane that was forced to ditch in the Atlantic Ocean.

USCGC Dallas

2003  CGC Dallas was ordered to deploy overseas to support Operation Enduring Freedom and to prepare for future contingencies.  She was underway on patrol when she received the order from the Atlantic Area commander to sail overseas to the Mediterranean.  Dallas deployed with an HH-65B Dolphin helicopter and 7-member aircrew from Coast Guard Air Station Atlantic City, New Jersey.

2004  The Coast Guard repatriated 531 Haitian migrants to Port-au-Prince, Haiti, after they were rescued in the Windward Pass. The migrants were from 13 boats stopped since February 21, 2004.  The repatriations were completed by three cutters: CGC Valiant transported 290 migrants, CGC Vigilant delivered another 241, and CGC Nantucket escorted the cutters for safety and security. The migrants were turned over to the Haitian coast guard.