|Quoting Trex8 (Thread starter):|
Has anyone seen anything recently from the investigation to confirm this??
|Quoting 474218 (Reply 2):|
Why would the windows crack? Cabin windows are made of stretched acrylic and stretched acrylic shrinks when it is heated.
|Quoting EMBQA (Reply 1):|
It was confirmed by the investigation. Also, the show was wrong the 737 was NOT grounded worldwide. An AD was issued to inspect the suspected area. A few other cases were found and corrective action was taken
|Quoting L-188 (Reply 3):|
The material shrinks and since it is secured around it's perimater that extra stress ends up cracking the material.