TM 1-1520-238-23 Change 4 B-53 (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 03010502 SHOCK STRUT ASSEMBLY  MAIN INSPECT 0.1 27, 109, 112  129 , SERVICE 0.5 0.5 , , 154, 171, REMOVE 0.8 183, 199, 215, 262, INSTALL 0.8 312A, 335, 336, REPAIR 1.3 0.5 376, 384, 425, 435, OVERHAUL 20.3 438, 442, 445 0301050201    PISTON, LINEAR ACTUATOR OVERHAUL 5.9 27, 154, 171, 262, 336, 384, 425, 445 0301050202    CONNECTOR, ROD END INSPECT 0.1 27, 154, REMOVE 0.2 262, 335, INSTALL 0.2 376, 442 REPAIR 1.5 0301050203    VALVE ASSEMBLY, SHOCK STRUT OVERHAUL 2.1 27, 154, 262, 376 0302 MAIN LDG, RH SERVICE 0.2 27, 154, INSTALLATION REPAIR 0.9 218, 262, 376 030201 WHEEL, LANDING GEAR (GOODYEAR) REMOVE 0.4 27, 30, 49, 129, INSTALL 0.4 154, 260, 262, 364, 376, 398, REPAIR 0.6 , , 406, 435, 447 03020101 WHEEL, SUBASSEMBLY REMOVE 0.5 376 INBOARD INSTALL 0.5 03020102 WHEEL, SUBASSEMBLY REMOVE 0.5 376 OUTBOARD INSTALL 0.5