TM 1-1520-238-23 B-36 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 021639 DOOR, ACCESS INSPECT 0.2 377 REMOVE 0.2 INSTALL 0.2 REPAIR 0.6 021640 DOOR INSTALLATION INSPECT 0.1 376 ASSEMBLY REPAIR 0.3 021641 DOOR, ACCESS INSPECT 0.1 377 REMOVE 0.2 INSTALL 0.2 REPAIR 0.5 021642 DOOR INSTALLATION INSPECT 0.1 376 ASSEMBLY REPAIR 0.2 021643 DOOR, ACCESS INSPECT 0.1 377 REMOVE 0.2 INSTALL 0.2 REPAIR 0.6 021644 FAIRING INSTALLATION INSPECT 0.1 376 ASSEMBLY REPAIR 0.2 021645 FAIRING, FUSELAGE, INSPECT 0.1 376 AIRCRAFT REMOVE 0.4 INSTALL 0.4 REPAIR 1.1 1.2 021646 FAIRING INSTALLATION INSPECT 0.1 376 ASSEMBLY REPAIR 0.1 021647 DOOR AND PANEL INSPECT 0.1 376 ASSEMBLY REPAIR 0.9 021648 DOOR, ACCESS INSPECT 0.1 377 REMOVE 0.3 INSTALL 0.3 REPAIR 1.3 021649 DOOR, ACCESS INSPECT 0.1 377 REMOVE 0.4 INSTALL 0.4 REPAIR 1.2