TM 1-1520-238-23 B-128 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 100121 TUBE ASSEMBLY REMOVE 1.8 27, 154, R INSTALL 1.8 262, 376 100122 TUBE ASSEMBLY REMOVE 1.9 27, 154, R INSTALL 1.9 262, 376 100123 BRACKET ASSEMBLY, PU REMOVE 2.4 27, 154, E INSTALL 2.4 262, 376 REPAIR 0.4 1002 ENGINE FUEL SYSTEM REPAIR 3.2 27, 89, 129, 154, 262, 355, 376, 378, 406, 416, 417, 419, 421, 425, 441, 445 100201 ACTUATOR, ELECTRIC INSPECT 0.4 27, 154, MECHANICAL REMOVE 0.8 262, 376 INSTALL 0.8 OVERHAUL 7.0 100202 PUMP, FUEL BOOSTER INSPECT 0.3 27, 86, TEST 0.7 89, 154, REMOVE 1.8 215, 262, INSTALL 1.8 376, 378, 441, 421 OVERHAUL 1.4 , 100203 VALVE, SOLENOID INSPECT 0.3 27, 154, TEST 1.5 262, 376 REMOVE 1.7 INSTALL 1.7 OVERHAUL 4.1 100204 PUMP, FUEL BOOSTER, E INSPECT 0.1 27, 100, TEST 0.8 154, 262, REMOVE 0.9 376, 417 INSTALL 0.9 REPAIR 0.2 OVERHAUL 1.8