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MTVLineage <br /> II Form <br /> • Order replacement parts for the gland packing nut. <br /> Date completed: Signature of Reporting Supervisor <br /> 04/09/2021—Part was ordered. <br /> Describe the corrective action(s)to prevent similar incidents from reoccurring: <br /> 1. Replace of the gland packing nut parts, as per OEM specifications. <br /> 2. Review OEM recommendations for gland packing maintenance and regular replacement intervals. <br /> 3. Review the applicable procedures(i.e. operating/maintenance procedures) for alternating ammonia <br /> pumps. <br /> Due date:05/07/2021 Responsible party:Jerry Jastrem <br /> My's Analysis <br /> Process: FMM was performing the monthly Ammonia Recirculator Pump Rotation <br /> A. Detailed Definition of the Problem: <br /> Ammonia leak due to a gland packing nut on the PR-2 liquid feed for AP-4 valve number PR-2,33. <br /> B. Root Cause Analysis <br /> 1.Why?:Why there was an ammonia leak? <br /> Because the FMM was performing an ammonia pump rotation (part of PM schedule), which included <br /> operating ammonia pump isolations valves that resulted in a leak. <br /> 2.Why?:Why operating ammonia pump isolations valves during pump rotation resulted in a leak? <br /> Because the steam packing seal did not seal properly around the valve stem. <br /> 3.Why?:Why the steam packing seal did not seal properly around the valve stem? <br /> Because the seal inside the gland packing nut was a wear point, which is common as per engineering design. <br /> Therefore, leak was due to packing seal failure. <br /> C. Root Cause of the Problem: <br /> Packing seal failure (gland packing nut). <br /> D. Root Cause Testing <br /> 3.Therefore.Steam packing seal did not seal properly around the valve stem <br /> 2.Therefore:Operating ammonia pump isolations valves during pump rotation resulted in a leak <br /> 1.Therefore: Ammonia leak. <br /> Page 4 of 5 <br />