Divers find downed German U-boat off U.S. coast

BOSTON — Divers have found a World War II-era German submarine nearly 70 years after it sank under withering U.S. attack in waters off Nantucket.

The U-550 was found Monday by a privately funded group organized by New Jersey lawyer Joe Mazraani. It was the second trip in two years to the site by the team, some of whom had been searching for the lost U-boat for two decades.

Using side-scan sonar, the seven-man team located the wreck listing to its side in deep water about 70 miles south of Nantucket.

Sonar operator Garry Kozak said he spotted the 252-foot submarine during the second of an exhausting two days of searching. Kozak said the team asked him if they’d found it, then erupted in joy without a word from him.

“They could see it with the grin (on my face) and the look in my eyes,” Kozak said.

On April 16, 1944, the U-550 torpedoed the gasoline tanker SS Pan Pennsylvania, which had lagged behind its protective convoy as it set out with 140,000 barrels of gasoline for Great Britain, according to the U.S. Coast Guard website and research by Mazraani.

The U-boat slipped under the doomed tanker to hide. But one of the tanker’s three escorts, the USS Joyce, saw it on sonar and severely damaged it by dropping depth charges.

The Germans, forced to surface, manned their deck guns while another escort vessel, the USS Gandy, returned fire and rammed the U-boat. The third escort, the USS Peterson, then hit the U-boat with two more depth charges. The crew abandoned the submarine, but not before setting off explosions to scuttle it. The submarine hadn’t been seen again until Monday.

The U-550 is one of several World War II-era German U-boats that have been found off the U.S. coast, but it’s the only one that went down in that area, Mazraani said. He said it’s been tough to find largely because military positioning of the battle was imprecise, and searchers had only a general idea where the submarine was when it sank. Kozak noted that the site is far offshore and has only limited windows of good weather.

The team towed a side-scan sonar vessel in a mow-the-lawn pattern over the search area and found the U-500 after covering 100 square miles of ocean, between the trip this year and last year, Kozak said.

Just the nose of U-boat was visible on sonar on the first pass, but the team was delirious after the second pass. when the sonar image made it obvious they’d found it, Mazraani said. Quick dives to the wreck to beat bad weather confirmed the find with pictures.

The other team members were Steve Gatto, Tom Packer, Brad Sheard, Eric Takakjian and Anthony Tedsechi

Mazraani is cagey about the vessel’s precise location, saying only that it’s in deep water. Mazraani’s said his best estimate was that the team spent thousands of dollars of its own money on the expedition. He joked that no one on the team, whose members range in age from the mid-20s to mid-50s, stands to make money from the find unless someone writes a book.

Mazraani said the next step is to contact any sailors or their families from the escort vessels, the tanker and the German U-boat to share the news and show the pictures. Another trip to the site is coming, he said, adding the investigation has just started.

“The history behind it all is really what drives us,” Mazraani said.

Talk to us

> Give us your news tips.

> Send us a letter to the editor.

> More Herald contact information.

More in Local News

Daily Herald moves to new office near downtown Everett

The move came after the publication spent 12 years located in an office complex on 41st Street.

Women run free for health and wellness in Marysville

The second Women’s Freedom Run brought over 115 people together in support of mental and physical health.

Pop star Benson Boone comes home to Monroe High School

Boone, 23, proves you can take the star out of Monroe — but you can’t take Monroe out of the star.

People walk through Explorer Middle School’s new gymnasium during an open house on Oct. 7, 2025 in Everett, Washington. (Olivia Vanni / The Herald)
Everett middle school celebrates opening of new gym

The celebration came as the Mukilteo School District seeks the approval of another bond measure to finish rebuilding Explorer Middle School.

Logo for news use featuring Snohomish County, Washington. 220118
Man sets fire to two adult novelty shops on Wednesday

Over two hours, a man, 48, ignited Adult Airport Video and The Love Zone with occupants inside.

Records reveal Lynnwood candidate’s history of domestic violence, drug use

Bryce Owings has been convicted of 10 crimes in the last 20 years. He and his wife say he has reformed and those crimes are in his past.

Lowell Elementary School in Everett. (Sue Misao / Herald file)
Everett Public Schools could seek bond to fund new school

Along with the new school, the nearly $400 million bond would pay for the replacement of another, among other major renovations.

Everett school bus drivers could strike amid contract fight

Unionized drivers are fighting for better pay, retirement and health care benefits. Both sides lay the blame on each other for the stalemate.

A person enters the Robert J. Drewel Building on Friday, Nov. 3, 2023, at the county campus in downtown Everett, Washington. (Ryan Berry / The Herald)
Snohomish County Council pass two awareness resolutions

The council recognized October as Domestic Violence Awareness and Disability Employment Awareness Month.

The inside of Johnson’s full-size B-17 cockpit he is building on Sept. 23, 2025 in Everett, Washington. (Olivia Vanni / The Herald)
Everett man builds B-17 replica in his garage

Thatcher Johnson spent 3 years meticulously recreating the cockpit of a World War II bomber.

A parent walks their children to class at Whittier Elementary on Wednesday, Sept. 6, 2023 in Everett, Washington. (Olivia Vanni / The Herald)
Everett celebrates ‘Blue Ribbon’ award as feds cancel program

The Department of Education canceled the award weeks before Whittier Elementary was set to receive it. No Everett public school had won it in over four decades.

Two workers walk past a train following a press event at the Lynnwood City Center Link Station on Friday, June 7, 2024, in Lynnwood, Washington. (Ryan Berry / The Herald)
Sound Transit weighs possible savings on Everett Link extension

Amid rising costs, the agency could adjust the early design of the Everett Link plan. The proposed changes would not remove stations or affect service levels.

Support local journalism

If you value local news, make a gift now to support the trusted journalism you get in The Daily Herald. Donations processed in this system are not tax deductible.