annual maintenance contract of ground support equipment at ins utkrosh , hyd test bench , hyd test kit ( break bleeding rig ) , jack nike 15-3t , bottle jack ( dor ) , lifting sling ( dor ) , portable generator , crash & salvage trolley , table top tensiometer , ultrasonic cleaning , fuel manifold test rig , eddy current test rig , inhibiting rig ( dor ) , tyre charging rig , smart pressure gauge calibrator , nitrogen trolley , p8i ladder , vacuum cleaner , mobile a/c refueling unit , portable refuller , hyd . test kit/break bleeding kit , portable generator , tyre charging rig , nitrogen trolley , vacuum cleaner machine , jack nike 15-3t , lp compressor , a/c washing rig , ground cooling unit , nose jack ( dor ) , main jack ( dor ) , tail jack , bottle jack , compressor washing rig , break bleeding rig , tyre charging rig , nitrogen trolley , air bottle trolley , gun pod loading/unloading , a/c washing plant , nato kit , a/c portable washing rig , flipper ( hanger cleaning machine ) , vacuum cleaner , gun pod lifting trolley