This Day in Failure: May 16

2011: In the midst of a merger between United Airlines and Continental Airlines, a computer assigns flight numbers 93 and 175 to a pair of United flights, designations that had been retired after the September 11, 2001 terrorist attacks on New York and Washington. The company later apologizes for the error, noting that the glitch occurred when two Continental flights that carried those numbers were re-designated as United flights as part of the merger.

2009: The Tucson Citizen, Arizona’s oldest continually published daily, publishes its final edition after owner Gannett Co. fails to find a buyer for the struggling newspaper.

2009: During the 130-mile eighth stage of the Giro d'Italia bike race, Spanish cyclist Pedro Horrillo, 34, skids on wet leaves during a steep descent and crashes into a guardrail before flying over the railing and tumbling 200 feet down a ravine. Horrillo suffers a fractured right femur, broken ribs, two fractured vertebrae, a punctured lung and trauma to his throat.

2004: Chicago Cubs slugger Sammy Sosa suffers back spasms in the team’s clubhouse prior to a game against the San Diego Padres, the spasms brought on by a pair of violent sneezes. Ultimately the Cubs place Sosa on the 15-day disabled list with a sprained ligament in his lower back.

1987: The Bobro 400 sets sail from New York Harbor carrying thousands of tons of garbage and travels for eight weeks in search of a place to dump its cargo before returning to New York.

1911: After a ground crew walks the LZ 8 (Deutschland II) airship out of its Düsseldorf hangar, a crosswind lifts the ship into the air, planting the middle section atop the hangar roof and the stern atop a protective windscreen designed to protect from this eventuality. The passengers escape by climbing down a fire ladder that reaches from the passenger cabin to the ground.

1874: Silk industry magnate William Skinner loses everything when an inland tidal wave destroys the company village (Skinnerville) that bears his name. The flood occurs after an oft-criticized, eight-year-old dam suffers a catastrophic failure. One-hundred-thirty-nine people are killed and more than 800 are left homeless by what is now referred to as the Mill River Flood, Disaster