ALSO: New '60 Minutes' shows shocking footage of the cracks in the Millennium Tower basement 
 
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 NBC Bay Area reports Millennium Tower residents heard a "creaking sound and then a large pop" before the crack appeared at 2:30 a.m. Sunday. (Published Wednesday, Sept. 5, 2018) 
 
 City inspectors issued a notice of violation on Tuesday, giving the Millennium management 72 hours to report back on the extent of the problem and the soundness of the building’s façade in light of the failure. The building has sunk some 17 inches since construction began in 2005 and its tilting about 14 inches. Large crack reportedly forms in window of San Francisco's sinking Millennium Tower 
 
 Officials with the City and County of San Francisco Department of Building Inspection are requiring Millennium Tower building engineers to evaluate the extent of repairs needed to fix the crack and investigate the condition of the glass panel and adjacent curtain wall system by Friday, Sept. 7, 2018. less Officials with the City and County of San Francisco Department of Building Inspection are requiring Millennium Tower building engineers to evaluate the extent of repairs needed to fix the crack and investigate ... more Photo: Courtesy Of City And County Of San Francisco Department Of Building Inspection Photo: Courtesy Of City And County Of San Francisco Department Of Building Inspection Image 1 of / 13 Caption Close Large crack reportedly forms in window of San Francisco's sinking Millennium Tower 1 / 13 Back to Gallery 
 
 A new defect in San Francisco's sinking and tilting Millennium Tower has appeared. Supervisor Aaron Peskin confirms there's a crack in a window and says, "Building management sent an email to all the owners saying they thought this crack [was related to] the ongoing problems with the building—i.e., the settling, sinking of the building." “This is a public safety hazard,” Peskin says of the window failure, adding that the city Department of Building Inspection must act immediately to assure the safety of thousands of people who walk by the building every day.
– More bad news for San Francisco's Millennium Tower. This time, it's a crack in a window on the 36th floor of the 58-story building, SFGate reports. It happened Saturday around 2:30am when residents heard "creaking noises" and a "loud pop," per NBC Bay Area. Later, a resident found a crack in his window. San Francisco Supervisor Aaron Peskin tells SFGate that if the window, which is designed to withstand hurricane-force winds, were to fail completely "it would rain shards of glass hundreds of feet below onto one of the busiest, most congested parts of the city." Opened in 2009, the 645-foot-tall Millennium Tower has reportedly sunk some 17 inches and is tilting (by 14 inches per SFGate, by 18 inches per NBC). In an email to residents, per Peskin, building management confirmed the window crack and said it was related to "ongoing problems with the building—i.e., the settling, sinking of the building." Other issues, according to NBC, include cracks in the basement wall and "strange odors" in some units. Units in the building sold for between $1.6 million and $10 million, per SFGate.