What was found
DURING THE MONTH OF NOVEMBER, THERE WERE FOUR CTL-22 COMPENSATION CONTROL HEADS, P/N 622-6520-008, THAT WERE REMOVED DUE TO PART OR ALL OF BACKLIGHTING BEING INOPERATIVE. THE PARTS TIME SINCE OVERHAUL WERE 5,447.8 FROM N NR 831SK NR 1 SIDE; 6,578.5 HRS FROM N NR 831SK NR 2 SIDE; 4,860.2 HRS FROM N NR 841SK; AND 6,538.1 HRS FROM N NR 85SK. WHEN SENT OUT FOR REPAIR, LAMPS WERE REPLACED BEFORE THE UNITS WERE RETURNED TO SERVICE. THIS GIVES A MTBUR OF 5,865.2 HOURS. REF: OPERATOR CONTROL NRS S2YA960044 AND 97ZZZX1802, 97ZZZX1803.