TM 1-1520-238-23 Change 3 B-155 (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 11120209 CIRCUIT CARD TEST 0.3 223, 346, X ASSEMBLY REMOVE 0.3 378 INSTALL 0.3 REPAIR 1.0 11120210 CIRCUIT CARD TEST 0.3 223, 346, X ASSEMBLY REMOVE 0.3 378 INSTALL 0.3 REPAIR 1.0 11120211 CIRCUIT CARD TEST 0.3 223, 346, X ASSEMBLY REMOVE 0.3 378 INSTALL 0.3 REPAIR 1.0 111203 CONTROLLER TEST 0.3 378 X STABILATOR REMOVE 1.0 INSTALL 1.0 REPAIR 0.3 11120301 CIRCUIT CARD TEST 0.3 32, 108, X ASSEMBLY REMOVE 0.3 175, 346, INSTALL 0.3 378, 437 REPAIR 1.1 11120302 CIRCUIT CARD TEST 0.3 32, 108, X ASSEMBLY REMOVE 0.3 175, 346, INSTALL 0.3 378, 437 REPAIR 1.1 11120303 CIRCUIT CARD TEST 0.3 32, 108, X ASSEMBLY REMOVE 0.3 175, 346, INSTALL 0.3 378, 437 REPAIR 1.0 11120304 CIRCUIT CARD ASSEMBLY REMOVE 0.5 27, 32, 35  154 X INSTALL 0.5 , , 175, 262, REPAIR 1.1 378, 437 11120305 CHASSIS, ELECTRICAL REPAIR 1.2 27, 152, 154, 155, 208, 221, 262, 377, 378, 437 E