What was found
(CAN) NOV 23RD 2004, RT FLIGHT OFFICER WINDSHIELD CRACKED IN FLIGHT DURING CLIMB. AIRCRAFT C/OUT AN AIR TURN BACK. MAINTENANCE REPLACED THE WINDSHIELD (P/NOFF, D20543-406, S/N OFF, 01303H2172 - P/N ON D20543-406, S/N ON 04198H1107) IAW AMM 56-11-00.