202160 Line throwing device/rocket inversion

An officer was tasked with pyrotechnic inspection and replacement. While undertaking the rocket replacement in the Line Throwing Device (LTD) he found that the previously installed rocket had been inserted upside down, which would have certainly meant an improper activation if needed. The same was found in two other LTDs on board. It was found that the LTDs had been delivered in this state but this defect had not been discovered during inspections. 

Lessons learned

• The inspection of even the most basic equipment might lead to surprises. This task must be taken with the utmost seriousness as even manufacturers can make mistakes.