As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AT AN ALTITUDE OF 17,000 FT OAT -6 DEGREES C, THE RT WINDSHIELD CRACKED FROM THE CENTER OB FROM THE TOP TO THE BOTTOM ABOUT 2 INCHES OB ON THE OUTER PANE. RETURNED TO THE DEPARTING AIRPORT WITHOUT ANY PROBLEMS. WINDSHIELD WAS REPLACED AND NO KNOWN CAUSE FOR THE WINDSHIELD TO CRACK. (K)