USCG Exam PracticeCargo gear and rigging
A shackle in a cargo runner assembly has a legible SWL marking but no current proof-test certificate. The runner wire and all other components are certified. What is the correct action before using this assembly for cargo operations?
- A. Use the assembly but reduce the working load to 50 percent of the shackle's marked SWL as a precaution
- B. Use the assembly provided the shackle's marked SWL equals or exceeds that of the runner wire
- ✓ Remove the shackle from service; gear without a current certificate is not usedCorrect
- D. Use the assembly for lifts not exceeding one-half the SWL of the weakest certified component
Why C is correct
NAVEDTRA 14343 §9-5 states that loose gear without a legible SWL mark or current certificate is not used. A missing certificate disqualifies the shackle regardless of its marked SWL. Additionally, NAVEDTRA 14343 §8-4 notes that the SWL of an assembled rig is set by its weakest component, so an uncertified shackle compromises the entire assembly.