Space Shuttle Mission 2007 Crack Here

But the deeper story unfolded days later.

Below is a deep, factual analysis of the most significant "crack" event in 2007: the . Deep Text: The Crack That Almost Broke the Shuttle – STS-118 and the Silent Failure The Context: Return to Flight After Columbia By 2007, NASA was still reeling from the Columbia disaster (STS-107, 2003), which was caused by foam debris striking the reinforced carbon-carbon (RCC) of the left wing’s leading edge. In response, two “Return to Flight” missions (STS-114 and STS-121) tested new inspection protocols, tile repair kits, and on-orbit imaging. Every mission thereafter carried an almost pathological fear of debris strikes. Space Shuttle Mission 2007 Crack

The decision: , but with a modified reentry profile—a shallower angle of attack to reduce thermal and aerodynamic loads on the left OMS pod. They also added a 4-hour thermal soak at 160,000 feet to allow gradual heating. But the deeper story unfolded days later

The crack was not a "mission failure." It was a warning. It said: You cannot inspect your way to infinite safety. Every weld, every seam, every cycle of heating and cooling brings entropy closer. The Shuttle was a miracle of engineering, but miracles don’t scale to 135 missions without accumulating ghosts in the machine. In response, two “Return to Flight” missions (STS-114

Additionally, the tile gouge was repaired in orbit using a spacewalk-applied "goo" (a high-temperature filler called STA-54) and a mechanical plug. This was the first-ever on-orbit tile repair in Shuttle history. For the astronauts, the crack was an invisible enemy. Commander Kelly later wrote that knowing about the crack “was like flying a plane with a crack in the windshield—you can’t unsee it in your mind.” The crew had to trust ground analysis while looking at the very crack during spacewalks (the OMS pod is externally visible).

STS-118 was no exception. Launched on August 8, 2007, Endeavour carried the SPACEHAB module and the S5 truss to the International Space Station (ISS). Commander Scott Kelly led a crew of seven. At T+58 seconds into ascent, a 0.25-pound piece of foam insulation—precisely the kind that doomed Columbia —broke away from the external tank’s (ET) "bipod ramp" region and struck the underside of Endeavour near the landing gear door. High-resolution post-launch imagery revealed a gouge in tile number V6 (a reinforced carbon-carbon tile near the nose landing gear door). The gouge measured approximately 3.5 inches by 2 inches, with a depth of nearly 1 inch.

The most likely intended reference is (August 8–21, 2007, aboard Endeavour ) or STS-120 (October 23 – November 7, 2007, aboard Discovery ), both of which experienced notable in-flight anomalies involving cracks.