E-2 (faulted S/G)

Question 1

E-2

If all S/G’s appear to be faulted what will be your direction in this procedure?

If both of your MDAFW pmps are OOS and your only source of steam to TDAFW is from the faulted S/G, will you isolate the steam to the TDAFW pmp?

Answer 1

transition to ECA-2.1, uncontrolled depressurization of all S/G’s

No

Question 2

E-2

After you have isolated the faulted S/G and you are checking if you meet SI term criteria, if you do not, what procedure do you transition to?

What are the major actions/ isolations that appx HH does for you?

Answer 2

E-1

Isolates

• MFW feed
• Blowdn
• AFW feed
• AFW stm

removes SCMM inputs

Question 3

E-2

If during isolation of faulted S/G, you cannot shut the AFW feed valves what possible actions can you take?

What do you have to be careful about when taking extra actions to secure flow to faulted S/G?

Answer 3

• send local operators to shut valve
• secure AFW pump feeding faulted S/G
  
  • use hutch interlock
• you maintain flow to at least one INTACT S/G