TM 1-1520-238-23 Change 3 B-129 (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 10020401 CANISTER ASSEMBLY, REMOVE 1.4 27, 154, PUMP INSTALL 1.4 262, 376, 417 10020402 TUBE ASSEMBLY REMOVE 1.8 27, 154 R INSTALL 1.8 10020403 TUBE ASSEMBLY, METAL REMOVE 1.8 27, 154 R INSTALL 1.8 1003 NITROGEN INERTING SYSTEM REPAIR 4.6 27, 92, 154, 262, 376, 402, 441 100301 PANEL, FAULT-FUNCTION TEST 0.4 27, 154, REMOVE 0.4 262, 334, INSTALL 0.4 378 REPAIR 0.9 100302 NITROGEN (N2) INERTING TEST 0.7 215, 376, UNIT REMOVE 1.9 378, 441 INSTALL 1.9 OVERHAUL 4.0 10030201 N2 INERTING ASSEMBLY REPAIR 0.5 27, 92, 129, 154, OVERHAUL 3.1 215, 262, 376, 378, 441 1003020101 FILTER ASSEMBLY, INT REPAIR 3.6 27, 129, 154, 376 10030202 TUBE ASSEMBLY REPAIR 3.6 27, 154 R 10030203 TUBE ASSEMBLY REPAIR 3.7 27, 154 R 10030204 TUBE ASSEMBLY REPAIR 3.5 27, 154 R 10030205 TUBE ASSEMBLY REPAIR 3.5 27, 154 R 10030206 TUBE ASSEMBLY REPAIR 3.5 27, 154 R 10030207 TUBE ASSEMBLY REPAIR 4.6 27, 154 R