4000 TSI:77 3378:18 77 4000 544:42 REF: BTC 49-102-00-01 APUS TSI:98 2863 98 + 49-110-00 APU - GENERAL VISUAL INSPECTION FUEL CONTROL OF THE FCU SEALS.FUEL LINES AND INTERFACING CONNECTIONS FOR LEAKAGE. GENERAL CONDITION. AND SECURITY OF INSTALLATION. PN MOS 71.5 22-AUG-2008 49.060 SN-UNKNOWN HRS/MSC