TM 1-1520-238-23 Change 3 B-29 (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 021401 NACELLE ASSEMBLY, INSPECT 0.1 27, 154, A, D, I, J, ENGINE, LH REMOVE 2.3 195, 262, 365, 376, U INSTALL 2.3 377, 416, 417, 434, REPAIR 0.8 , , 439 021402 FRAME INSTALLATION INSPECT 0.1 376 REPAIR 0.3 021403 SUPPORT ASSEMBLY REPAIR 0.7 376 021404 DOOR INSTALLATION INSPECT 0.1 376 REPAIR 0.3 021405 DOOR ASSEMBLY, WATER INSPECT 0.1 377 A, D, I, J, REMOVE 0.1 U INSTALL 0.1 REPAIR 0.5 021406 DOOR INSTALLATION INSPECT 0.1 376 REPAIR 0.3 021407 DOOR ASSEMBLY INSPECT 0.1 376 REMOVE 0.3 INSTALL 0.3 REPAIR 0.3 021408 DOOR ASSEMBLY INSPECT 0.1 376 REMOVE 0.3 INSTALL 0.3 REPAIR 0.4 021409 DOOR ASSEMBLY INSPECT 0.1 376 REMOVE 0.5 INSTALL 0.5 REPAIR 0.7 021410 DOOR, ACCESS REMOVE 0.2 377 INSTALL 0.2 REPAIR 0.6 021411 FIREWALL ASSEMBLY INSPECT 5.7 376 021412 DOOR INSTALLATION INSPECT 0.1 376 ASSEMBLY REPAIR 0.2