Titan A321 loses windows
Not the first time, as other posters have noted, and it happens to spacecraft as well. The Frontiers of Flight Museum at Dallas Love Field (KDAL) has the Apollo 7 command module on display. One of the side windows has a melted spot with bubbles trapped inside the 'glass'. A plaque nearby notes that this window survived the heat of re-entry, but was damaged by lights used in filming a documentary several years later.
While the windows didn't get anywhere near the heating of the aft end, the fact that this window survived an orbital re-entry but was no match for film lights--well, those lights get d**m hot!
While the windows didn't get anywhere near the heating of the aft end, the fact that this window survived an orbital re-entry but was no match for film lights--well, those lights get d**m hot!
It should be relatively easy to calculate the sort of temperatures the clear windows were exposed to and determine if that's a potential hazard to the composite fuselage.