TM 1-1520-238-23 B-70 Change 3 (1) (6) (5) (4) (3) (2) MAINTENANCE LEVEL GROUP NUMBER REMARKS CODE TOOLS & EQUIP REF CODE DEPOT (D) AVIM (F) AVUM (O) MAINTENANCE FUNCTION COMPONENT/ASSEMBLY 04020405 BELLCRANK REMOVE 1.7 27, 50, 154, 156, INSTALL 1.7 , , 232, 235, REPAIR 0.2 267, 376, 447 040205 PILOT POWER INSPECT 0.2 27, 86, QUADRANT ASSEMBLY_REMOVE 1.6 129, 154, 156, 163, INSTALL 1.6 218, 222, 226, 236, REPAIR 2.6 1.1 , , 267, 273, OVERHAUL 3.5 331, 376, 378, 445 040206 QUADRANT, CONTROL, REMOVE 0.8 27, 86, COPILOT INSTALL 0.8 129, 154, 163, 218, REPAIR 1.5 1.0 236, 273, 331, 376, OVERHAUL 3.3 , , 378, 445 040207 MOUNT, ENGINE REMOVE 2.2 43, 156, INSTALL 2.2 222, 376 REPAIR 0.4 040208 SUPPORT, ENGINE REMOVE 2.0 43, 156, MOUNT INSTALL 2.0 222, 376 REPAIR 0.4 0403 ENCLOSURE ASSEMBLY REMOVE 2.0 376 INSTALL 2.0 REPAIR 0.4 0404 ENCLOSURE ASSEMBLY REMOVE 1.5 376 INSTALL 1.5 REPAIR 0.4 0405 BRACKET MOUNTING REMOVE 1.8 376 INSTALL 1.8 REPAIR 0.4 0406 LOUVER ASSEMBLY, INSPECT 0.2 27, 103, D, H, I ENGINE REMOVE 1.4 129, 154, INSTALL 1.4 156, 262, 343, 376, REPAIR 0.5 , , 446