Resolution of Generic Safety Issues: Task II.E: System Design (Rev. 2) ( NUREG-0933, Main Report with Supplements 1–34 )
TASK II.E.1: AUXILIARY FEEDWATER SYSTEM
The objective of this task was to improve the reliability of the auxiliary feedwater (AFW) system.
ITEM II.E.1.1: AUXILIARY FEEDWATER SYSTEM EVALUATION
This item was clarified in NUREG-0737,98 requirements were issued, and MPA F-15 was established by DL/NRR for implementation purposes.
ITEM II.E.1.2: AUXILIARY FEEDWATER SYSTEM AUTOMATIC INITIATION AND FLOW INDICATION
This item was clarified in NUREG-0737,98 requirements were issued, and MPAs F-16 and F-17 were established by DL/NRR for implementation purposes.
ITEM II.E.1.3: UPDATE STANDARD REVIEW PLAN AND DEVELOP REGULATORY GUIDE
This TMI Action Plan48 item called for NRR to update SRP11 Section 10.4 and for RES was to revise Regulatory Guide 1.26 to cover AFW systems; the Regulatory Guide was to possibly endorse ANSI/ANS-51.00 and 52.00.
SRP11 Section 10.4.9 was updated in July 1981 to include the requirements98 of Items II.E.1.1 and II.E.1.2. Revision of Regulatory Guide 1.26233 to endorse the ANSI/ANS Standards was not pursued because it was considered a low priority task by RES. No additional public and occupational risk reduction was identified to support the need for development of a Regulatory Guide. Thus, this item was RESOLVED and new requirements were established with changes to the SRP.11