TM 1-1520-238-23 Change 3 B-39 (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 021671 FAIRING INSTALLATION INSPECT 0.1 376 ASSEMBLY REPAIR 0.2 021672 COVER, ACCESS REMOVE 0.2 377 INSTALL 0.2 REPAIR 0.9 021673 COVER, ACCESS REMOVE 0.2 377 INSTALL 0.2 REPAIR 0.6 021674 FAIRING INSTALLATION ASSEMBLY REPAIR 0.3 376 021675 FAIRING, AIRCRAFT INSPECT 0.1 376 REMOVE 0.7 INSTALL 0.7 REPAIR 1.1 021676 FAIRING ASSEMBLY INSPECT 0.1 376 REMOVE 0.1 INSTALL 0.1 REPAIR 0.4 021677 FAIRING, FUSELAGE, INSPECT 0.1 376 AIRCRAFT REMOVE 0.2 INSTALL 0.2 REPAIR 0.6 021678 FAIRING ASSEMBLY, FAB INSPECT 0.2 376 REMOVE 0.2 INSTALL 0.2 REPAIR 0.5 021679 COVER ASSEMBLY, REMOVE 0.1 376 RADAR JAMMER INSTALL 0.1 REPAIR 0.5 021680 AIR DUCT INSTALLATION ASSEMBLY REPAIR 1.2 376 021681 DUCT ASSEMBLY, REMOVE 1.5 376 AIRCRAFT INSTALL 1.5 REPAIR 0.9