ML20245D655

Power Ascension Program Resumption Plan

ML20245D655
Person / Time
Site:	Pilgrim
Issue date:	04/21/1989
From:	BOSTON EDISON CO.
To:
Shared Package
ML20245D649	List: BECO-89-060, Forwards Power Ascension Program Resumption Plan ML20245D655
References
PROC-890421, NUDOCS 8905010087
Download: ML20245D655 (7)

Text

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! BOSTON EDISON COMPANY li-PILGRIM NUCLEAR POWER' STATION i

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T POWER ASCENSION PROGRAM j RESUMPTION PLAN q

April 21, 1989 8905010087 890421 PDR ADOCK0500g3 P

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The resumption of the PNPS Power Ascension Program is illustrated )

in Figure 1 and includes the following:

A- Startup Corrective Actions B Longer Term Actions C Evaluation and Assessment of Corrective Actions D Continuation of the Power Ascension Program Beyond 25 Percent Power A. Startup Corrective Actions The'following actions have been, or will be, taken prior to the restart of Pilgrim Station. These corrective actions were developed from the recommendations of the RCIC event inspection task force and were described to the AIT at the exit meeting. The corrective actions have been categorized into four sections: Procedures, Personnel, Conduct of Operations, and System Material Condition.

1. I?ocedural Actions:

a. Improve human factors by revising the tagout procedure to clarify the requirements for independent verifications, tagging of control room switches, and nomenclature agreement between the tag sheet, the tag and the component.

b. Prior to conduct of each scheduled Instrumentation and Control surveillance, validate the procedure to verify that the nomenclature of each device (valve, switch, breaker, etc) listed in the procedure is consistent with the device label plate.

c. Correct the nomenclature discrepancy in the RCIC surveillance which was being performed during the event. 1

d. Add cautions to RCIC and HPCI surveillance procedures to alert operators to the possibility of backflow during pump starting.

e. Require both equipment description and device number to be noted on danger tags.

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'2.. Personnel Actions

a. Remove the operators who. violated the tag.

procedure from'watchstanding duties and suspend'them.pending further investigation.

b.i Instruct operationsfand maintenance personnel on their responsibilities in the tag procedure. This instruction toLinclude

.Tagout.and Tagout Verification Procedure, and Supervisor / Technician verification of tagouts:

in the-field. ,

c. -Instruct personnel on procedure changes.

'd . Instruct operations personnel on the causes and significance of this event.

.3. Conduct of Operations Actions

a. . Require pre-evolution briefings'for tests and surveillance (except'once per. watch and once per day-surveillance).- See Longer. Term Action in paragraph'B.3.

b. To increase the awareness of the reactor operator at the controls of significant tests' l at:1 surveillance, the.second reactor operator on shift will be required to monitor and report the results of.those tests and surveillance ^to the reactor operator at the.

controls.

c. -Issue watchstanding guidelines and conduct training regarding reactor operator awareness and the conditions which the Nuclear Watch Engineer (NWE) should consider before leaving the control room during a casualty.

4. System' Material Conditio! Actions

a. Verify, by' engineering evaluation and physical inspection, the integrity of the RCIC low pressure piping and supports,

b. Replace ~ damaged RCIC components.

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c. Test, inspect, disassemble and repair as required the RCIC check valve (1301-50).

Open and inspect the similar valve in the HPCI system, check valve (2301-7), and disassemble for repair if necessary.

d. Review and verify that environmental qualification of components and systems in the RCIC quadrant has not been exceeded.

Conduct walkdown to verify that components have not been degraded.

e. Perform Shutdown tests and inspections of the RCIC turbine pump to verify that no damage occurred as a result of the event.

B. Longer Term Actions

1. Revise danger tags to include the following information:

a. Equipment Description

b. Device Number

c. Desired Position

d. Tagout number and tag number

2. Monitor the implementation of the tagout process using the Peer Evaluators with a minimum frequency of two times per month through October 1989.

Adjust the frequency and/or extend the duration of this process based on the results of the peer evaluations.

3. As surveillance procedures are reviewed / revised, incorporate.a signoff documenting a pre-evolution briefing based on the criteria stated in the Conduct of Operation Procedure. Modify action in paragraph A.3.a to specifically define which surveillance and tests do/do not require pre-evolution briefings.

4. Paint or otherwise identify containment isolation switches to increase reactor operator awareness of containment isolation valves.

5. Evaluate RCIC Quadrant Temperature Alarm set-points in relation to Emergency Operating Procedure entry conditions.

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6. Train NWEs on pre-shift and pre-evolution 1 briefings using videotape examples and playbacks. I

7. Complete evaluations of damaged RCIC components removed from the system following the event. 3

8. Complete verification of nomenclature in I & C surveillance (see paragraph A.l.b), and verify nomenclature in mechanical and electrical.

surveillance.

9. Evaluate the need to log additional back panel safety systems parameters during routine operator tours.

C. Evaluation and Assessment of Corrective Actions

1. Line management, Management Oversight and Assessment Team (MO&AT), and peer evaluator observations will be reinstated during startup and ascension to 25% power. Line management and MO&AT will assess the effectiveness of the startup corrective actions, including increased emphasis on Operator awareness, and Tagout Verification Procedures.

2. Personnel will be examined on the Tagout and Tagout Verification Procedures.

3. After plant startup, the following assessment actions will be taken to ensure permanency of corrective programs:

a. Senior Management and Peer Evaluators will continue to perform evaluations of the conduct of operations and plant evolutions.

To include:

1) Process of tagouts

2) Awareness of the watchstanders to evolutions in progress.

3) Pre-evolution briefings

4) Independent verification Page 4

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5) General conduct of operations in accordance with PNPS procedure 1.3.34, Conduct of Operations

b. A line manager will conduct a back shift surveillance at a random time at least three times each week through October 1989.

D. Continuation of the Power Ascension Program Beyond 25 Percent Power Prior'to the request to raise Reactor Power to 50%, the attached power ascension program will be conducted-(Figure 1). The program includes RCIC operability tests at 150 PSI and at operating pressure. The program will receive management and peer evaluator oversight where noted, with attention focused on areas of interest identified as a result of the event. The program culminates in a Mo&AT assessment of the results and recommendation to the Senior Vice President -

Nuclear prior to Boston Edison Company's request to the.

Restart Panel to raise power to 50%. The MO&AT assessment will specifically include assessment of the effectiveness of the actions described in Sections A, B and C above.

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