393.71H-CDPHC Fifth Wheel Defective: Q&A

Yes. Our inspection records show a 100.0% out-of-service rate for 393.71H-CDPHC citations across all-time data. This is substantially higher than the all-FMCSR average OOS rate of 31.4%. When an inspector finds your fifth wheel assembly defective, has excessive wear, or is not properly secured, the truck is placed out of service immediately. You cannot operate until the defect is corrected and re-inspected.

This violation carries a CSA severity weight of 8 points. The total impact to your CSA score depends on the 30-day window in which other violations occur. A single 393.71H-CDPHC citation will add 8 points to your Unsafe Driving and Vehicle Maintenance BASICs. Stack multiple violations in a 30-day period and the cumulative effect rises quickly. Check your FMCSA Safety Management System (SMS) portal for your current CSA standing after citation.

1. Stop operating the vehicle immediately. You are out of service per the citation.
2. Document the citation. Take photos of the defect the inspector noted.
3. Schedule repair. Contact a certified repair facility that can inspect and fix the fifth wheel assembly.
4. Request re-inspection. Once repaired, request a compliance inspection to clear the OOS status.
5. Report to your carrier. Notify dispatch and compliance immediately.
6. Keep records. Save all repair invoices and inspection reports for your file and DataQs challenge if needed.

Yes, significantly. Across our 13 million inspections, 393.71H-CDPHC has a 100.0% out-of-service rate. Compare that to peer violations in the same Vehicle Maintenance category: 393.9(a) Inoperable Lamps (15.4% OOS), 393.11 Lighting Devices (1.8% OOS), and 393.78 Windshield Condition (0.3% OOS). Even 396.3(a)(1) Inspection/Repair/Maintenance General—a broader code—sits at 45.3% OOS. Fifth wheel defects are treated as critical safety failures that mandate immediate removal from service.

Yes, you can challenge this citation through the FMCSA's DataQs Records Review process within 15 days of the inspection report posting to your SafetyNet record. Fifth wheel defects are equipment-based findings, so your challenge should focus on whether the condition actually existed or was misidentified by the inspector. You'll need photos, maintenance records, or repair documentation proving the assembly was in compliance at the time of inspection. Submit your evidence and narrative through your DataQs account.

Rarely. Across our 13 million+ inspection records, this code ranks #2312 out of 3,036 FMCSR codes by citation volume. All-time citations total only 7, with 3 in the last 12 months and 0 in the last 90 days. Monthly data shows 1 citation in August 2025, 1 in September 2025, and 1 in October 2025. This is an uncommon violation, which means when it does appear, the defect is typically severe enough to warrant immediate action.

Extremely urgent. Your truck is out of service until repairs are complete. Our data shows a 100.0% OOS rate for this violation, meaning no exceptions. You cannot legally operate the vehicle on public roads. Contact a repair facility immediately—fifth wheel assembly issues involve critical steering and stability systems. A defective or improperly secured assembly creates acute safety risk. The low citation volume (0 in the last 90 days) suggests inspectors only flag this when the problem is real and dangerous.

Both. FMCSA records violations in two CSA BASIC categories: Unsafe Driving and Vehicle Maintenance each include records tied to both driver and carrier. A 393.71H-CDPHC fifth wheel defect is a vehicle maintenance issue, so it impacts your carrier's Vehicle Maintenance BASIC score and your personal MVR (Motor Vehicle Record). Your carrier bears responsibility for equipment compliance; you bear responsibility for pre-trip inspection and reporting defects. Both your record and your company's safety profile are affected.