What was found
MRR-M05-01, NR 1 WINDSHIELD CRACKED IN FLIGHT JUST AS CREW STARTED DESCENT. CREW DEPRESSURIZED AC, DESCENDED TO AN APPROPRIATE ALTITUDE FOR NON-PRESSURIZED FLIGHT, AND DIVERTED TO AN AIRPORT WITH VMC CONDITIONS. CREW LANDED WITH NO FURTHER INCIDENT. OAT WAS APPROXIMATELY -40 AND WINDSHIELD HEAT WAS ON LOW. INNER GLASS PANE CRACKED, UNDER INVESTIGATION WITH THE OVERHAUL/REPAIR FACILITY. INNER PANE OF THE HEATED WINDSHIELD CRACKED EXTENSIVELY. REPLACED WINDSHIELD, OPS CHECK AND LEAK CHECK GOOD. (K)