The US Coast Guard evaluated the Sikorsky S-62A prototype N880 during 1959-1960. It was sufficiently impressed with the S-62s performance over the HO4S-3G/HH-19G that it ordered 99 to fulfill its short range SAR requirement. Intitially designated HU2S-1G Seaguard, it was re-designated as the HH-52A Seaguard in October 1962. Deliveries commenced in 1963 and were completed in 1967 along side its larger stablemate, the Sikorsky S-61R/HH-3F Pelican long-range SAR helicopter.
The HH-52 saved over 15,000 lives in its twenty-five years of service with the United States Coast Guard.
They were replaced by the Dolphin
They were replaced by the Dolphin
Units
| 1980-1986 | Coast Guard Air Station Corpus Christi |
| 1971-1973 | Coast Guard Air Station Borinquen |
| 1970-1984 | Coast Guard Air Station Cape Cod |
| 1969-1988 | Coast Guard Air Station Chicago |
| 1969-1987 | Coast Guard Air Station Cape May |
| 1966-1988 | Coast Guard Air Station Detroit |
| 1965-1988 | Coast Guard Air Station Port Angeles |
| 1964-1973 | Coast Guard Air Station Astoria |
| 1963-1987 | Coast Guard Air Station Los Angeles |
| 1963-1987 | Coast Guard Air Station Barbers Point |
| 1963-1987 | Coast Guard Air Station Savannah |
| 1963-1984 | Coast Guard Air Station Brooklyn |
| 1963-1970 | Coast Guard Air Station Salem |
| 1963-1970 | Coast Guard Air Station San Francisco |
| ??-1988 | Coast Guard Air Station Kodiak |
| Coast Guard Air Station San Diego | |
| Coast Guard Air Station Miami | |
| Coast Guard Air Station Houston | |
| Coast Guard Air Station North Bend | |
| Coast Guard Air Station St. Petersburg | |
| ??-1972 | Coast Guard Air Station Annette |
Platforms
| W Hamilton class |
| W Reliance MEC class |
| AW Polar class |
| AW Wind class |
