Posted on August 26, 2020
The U.S. Coast Guard reports that its polar icebreaker Healy (WAGB-20) suffered a fire in one of its main propulsion motors Aug. 18 while underway for operations in the Arctic. No injuries were reported.
Considered a medium polar icebreaker, at 420 ft and displacing 16,000 tons, the diesel electric Healy is actually somewhat larger than the Coast Guard’s two heavy icebreakers, the 399 ft Polar Star and (currently inactive) Polar Sea. It was built at Avondale Shipyards and commissioned in November 1999
The Healy was 60 nautical miles off of Seward, Alaska, en route to the Arctic when an electrical fire was reported at 9:30 p.m. A fire team disconnected the affected motor, and the fire was confirmed extinguished by 9:56 p.m. The cause of the fire is currently unknown.
The propulsion motors are critical equipment that use the power generated by the ship’s main diesel engines to spin the shaft and propeller. This design protects the engines from variations in shaft speeds inherent to ice operations.
Due to the fire, Healy’s starboard propulsion motor and shaft are no longer operational, and the ship is transiting back to its homeport in Seattle for further inspection and repairs.
Prior to the fire, the Healy completed a 26-day patrol in support of Operation Arctic Shield, demonstrating U.S. presence and influence in the Bering Sea, along the U.S.-Russian Maritime Boundary Line, and in the Arctic.
On Aug. 15, the Healy was in Seward and embarked 11 scientists before departing on Aug. 18 to ensure national security and conduct science operations in the Arctic. As a result of the fire, all Arctic operations have been cancelled.
“I commend the crew of the Healy for their quick actions to safely combat the fire,” said Vice Adm. Linda Fagan, the Pacific Area commander. “This casualty, however, means that the United States is limited in icebreaking capability until the Healy can be repaired, and it highlights the nation’s critical need for Polar Security Cutters.”
In April 2019, the Navy and Coast Guard awarded a contract to VT Halter Marine, of Pascagoula, Mississippi, for the detail design and construction of the Polar Security Cutter. The initial award includes non-recurring engineering, detail design and construction of the first Polar Security Cutter and has options for the construction of two additional hulls. Construction of the first Polar Security Cutter is scheduled to begin in early 2021 with delivery in 2024. The fiscal year 2021 President’s Budget requests full funding for the construction of the second Polar Security Cutter.
Source: marinelog
