TM 1-1520-238-23 B-166 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 120818 TUBE ASSEMBLY, METAL REMOVE 0.3 376 R INSTALL 0.3 REPAIR 0.2 120819 TUBE ASSEMBLY, METAL REMOVE 0.3 376 R INSTALL 0.3 120820 TUBE ASSEMBLY REMOVE 0.3 376 R INSTALL 0.3 1209 BRACKET, MOUNTING LH REMOVE 0.3 376, 377 INSTALL 0.3 REPAIR 0.9 120901 FRAME, FIRE DETECTOR REMOVE 0.4 376, 377 INSTALL 0.4 REPAIR 0.8 12090101 FRAME REPAIR 0.1 376 1210 WIRE INSTL REPAIR 0.2 378 1211 WIRE HARNESS W149 REPAIR 0.6 378 1212 FRAME ASSEMBLY RH REMOVE 0.3 376, 377 INSTALL 0.3 REPAIR 0.9 121201 BRACKET, MOUNTING REMOVE 0.3 376, 377 INSTALL 0.3 REPAIR 0.8 12120101 FRAME REPAIR 0.1 376 121202 PANEL, STRUCTURAL, REMOVE 0.2 376, 377 AIRCRAFT INSTALL 0.2 REPAIR 1.0 1213 WIRE INSTL REPAIR 0.2 378 1214 WIRE HARNESS W164 REPAIR 0.6 378