Home > NRC Library > ADAMS Public Documents

Forwards Engineering Evaluation Rept AEOD/E414 re stuck open isolation check valve on RHR sys,for review.Definition of good industry practice for disabling air actuators of testable check valves when flow testing requested.

Accession Number: ML20092A176

Date Released: Sunday, November 8, 2020

Package Contents

The following links on this page are to Adobe Portable Document Format (PDF) files. To obtain a free viewer for displaying this format, see our Plugins, Viewers, and Other Tools.

• ML20092A173 - Forwards Engineering Evaluation Rept AEOD/E414 re stuck open isolation check valve on RHR sys,for review.Definition of good industry practice for disabling air actuators of testable check valves when flow testing requested. (2 page(s), 6/1/1984)
• ML20092A195 - Forwards Engineering Evaluation Rept AEOD/E414 re stuck open isolation check valve on RHR sys at Hatch Unit 2. Human errors & degraded isolation barriers between high-pressure RCS & low-pressure RHR sys caused event. (2 page(s), 6/1/1984)
• ML20092A205 - Forwards Engineering Evaluation Rept AEOD/E414 re stuck open isolation check valve on RHR sys at Hatch Unit 2.Isolation barriers between high-pressure RCS sys & low-pressure RHR sys degraded.IE requested to prepare info notice. (2 page(s), 6/1/1984)
• ML20092A216 - Forwards Engineering Evaluation Rept AEOD/E414 re stuck open isolation check valve on RHR sys at Hatch Unit 2.Preparation of IE info notice suggested,based on degradation of high-pressure/low-pressure sys boundaries. (2 page(s), 5/31/1984)
• ML20092A229 - "Stuck Open Isolation Check Valve on RHR Sys at Hatch Unit 2," engineering evaluation rept. (11 page(s), 5/31/1984)