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The Mon Bomber Mystery

On January 31, 1956, a B-25 Mitchell bomber plane on a routine transport mission crash landed in the Monongahela River in Pittsburgh. Despite decades of searches, not a trace of the plane has ever been found. Local lore claims it was secretly removed from the river that same night.

If you saw anything on the evening of January 31 or the early morning of February 1, 1956 — or know someone who did — we want to hear from you.

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Log of News, Updates, and Announcements

Date
Entry
1/31/2026

70th Anniversary of the Crash

Stay tuned to Pittsburgh Manifold for more information.

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1/8/2026

Podcast Ep. #01: Mon Bomber Mystery

An interview with Dr. Andrew Masich, President and CEO of the Senator John Heinz History Center

"I think the only way to really put an end to the speculation is to go down there with good equipment and see through the murk ..." suggests Dr Andrew Masich "and once you get down there you start stirring up more ... but with modern equipment we may be able to sort the TRASH from the TREASURE there at the bottom of the Mon"

Pittsburgh Manifold’s Brian Conway sits down with Andy Masich, President and CEO of the Senator John Heinz History Center to discuss the enduring appeal of the missing Mon Bomber -- a B-25 bomber plane that vanished in the Monongahela River in Pittsburgh in 1956, as well as the museum’s expansion plans and more.

Ep. #01: Mon Bomber Mystery with Dr. Andrew Masich

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12/9/2025

Have You Seen Me?

Missing B-25 poster and marketing campaign kickoff.

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12/8/2025

Call for Stories

Did you or someone you know witness a clandestine late-night plane extraction from the Monongahela River late at night on January 31, 1956?

We want to hear from you.

Share your story

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12/1/2025

Pittsburgh Manifold and the Mon Bomber Mystery

Why are we searching for a bomber plane that went missing on the Monongahela River 69 years ago? And how you can support the effort.

Article on Pittsburgh Manifold

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