TM   10-3930-638-24&P 2-30. LIGHT SYSTEMS MAINTENANCE (cont) d. Stop and Tail tight. This  task  covers:  a.  Removal d.   Installation/Replacement b.  Cleaning e.   Testing c.  Inspection INITIAL  SETUP TOOLS EQUIPMENT CONDITION No.  1  Common  Organiza- NSN  4910-00-754-0654 Paragraph Condition Description tional Maintenance Tool Kit Engine  off. IGNITION switch in OFF position and MATERIALS/PARTS key  removed. Cleaning solvent P-D-680 2-52c Tow bar lowered to ground and grille open. Clean  cloths 2-154