What was found
NOV. 1, 1996: CRUISE FLIGHT @ FL 230, OUTER LAMINATION OF PILOT WINDSHIELD FRACTURED 2-3 INCHES INBOARD OF CENTER POST. FRACTURE WAS VERTICAL THE ENTIRE HEIGHT OF WINDSHIELD. INNER LAMINATION NOT AFFECTED. PRECAUTIONARY LANDING MADE WITHOUT INCIDENT. WINDSHIELD HEAT WAS ACTIVE FOR 20-30 MINUTES PRIOR TO FAILURE. SECOND FAILURE OF WINDSHIELD ASSY. 1ST FAILURE OCCURRED 10-17-88 @ 1384 TSN. 2ND FAILURE @ 3150 TSN.