TM 10-1670-296-20&P                                                    0006 00 0006 00-17 Table 2.  Preventive Maintenance Checks and Services – continued B – Before D – During A – After INTERVAL ITEM NO. B D A ITEM TO BE CHECKED   OR SERVICED EQUIPMENT NOT READY/ AVAILABLE IF: 30 Aircraft Cargo Tie-down.   Inspect tie-down chain for rough areas, bends, breaks, cracks, rust, or foreign material.   Ensure turnbuckle threads are not stripped or damaged. Tie-down chain has rough areas, bends, breaks, or cracks.  Rust, or foreign material is present.  Turnbuckle threads are stripped or damaged. 31 3 ¾-Inch, 2-Point Link. Inspect two-point link for rough areas, bends, breaks, and cracks.   Ensure fastener threads are not stripped or damaged. Link has rough areas, bends, breaks, and cracks.  Fasteners have stripped or damaged threads.