will 393.124(d) put my truck out of service
Yes. Across our inspection records, every single citation for 393.124(d) has resulted in an out-of-service order—a 100.0% OOS rate. This is dramatically higher than the all-FMCSR average of 31.4%, meaning inspectors treat concrete pipe securement violations as critical safety issues. Once cited, expect your truck to be removed from service until the cargo is properly secured and re-inspected.