TM 1-1520-238-23 B-80 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 060303 ROTOR, DISK BRAKE INSPECT 0.4 2, 17, 27, 51, 52, 56, 59, 85, 129, REMOVE 0.9 133, 145, 147, 154, 170, 234, 249, 262, INSTALL 0.9 280, 318, 321, 357, 369, 372, 376, 384, 387  402 REPAIR 0.1 0.8 , , 432, 433, 434, 435, 436, 439, 443, 446 06030301 CYLINDER ASSEMBLY, LH REPAIR 2.6 27, 52, 56, 59, 145, 152, 154, 234, 262, 357, 369, 387A, 402, 439, 446 06030302 CYLINDER ASSEMBLY, RH REPAIR 1.0 27,52, 56, 59, 145, 152, 154, 234, 262, 357, 369, 387A, 402, 439, 446 06030303 VALVE, BLEEDER, HYDRAULIC REMOVE 0.2 27,52, 56, 59, 145, 152, 154, 234, INSTALL 0.2 262, 357, 369, 387A, 402, 439, 446