Three Strikes - You're OUT! IP Shuts down again...

Notification Date: 04/03/2007

Notification Time: 05:07 [ET]

Event Date: 04/03/2007

Event Time: 04:16 [EDT]

Last Update Date: 04/03/2007

Emergency Class: NON EMERGENCY

10 CFR Section:

50.72(b)(2)(iv)(B) - RPS ACTUATION - CRITICAL

50.72(b)(3)(iv)(A) - VALID SPECIF SYS ACTUATION

Person (Organization):

HAROLD GRAY (R1)

BILL BATEMAN (NRR)
CATHY HANEY (NRR)

JEFFREY CRUZ (IRD)

MANUAL REACTOR TRIP WHILE PERFORMING BOILER FEED PUMP MAINTENANCE

"The Indian Point Unit 3 reactor was manually tripped at 04:16 on 4/3/2007 due to low steam generator levels that occurred while the 31 MBFP [main boiler feed pump] speed control was being isolated for maintenance. Indian Point Unit 3 is currently in mode 3 with all automatic actions for a manual reactor trip occurring as required. Unit 2 was unaffected and remains in mode 1 at 100% power."

The reactor was manually tripped when steam generator levels reduced to 18% in all four steam generators. All rods inserted on the trip. No safety or relief valves lifted due to the trip. The motor driven aux feedwater pumps automatically started on low steam generator level and are being used to maintain steam generator level. Atmospheric steam dumps are maintaining reactor temperature. The Unit 3 electrical lineup is the normal shutdown electrical lineup. The licensee has notified the state Public Service Commission.

The licensee will notify the NRC Resident Inspector.

Phillip Musegaas

Staff Attorney/Policy Analyst

Riverkeeper, Inc.

828 South Broadway

Tarrytown, NY 10591

914-478-4501 x224