United States Nuclear Regulatory Commission - Protecting People and the Environment

Morning Report for July 30, 2002

                       Headquarters Daily Report

                         JULY 30, 2002

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                    REPORT             NEGATIVE            NO INPUT
                    ATTACHED           INPUT RECEIVED      RECEIVED

HEADQUARTERS        X
REGION I                               X
REGION II                              X
REGION III                             X
REGION IV                              X
PRIORITY ATTENTION REQUIRED  MORNING REPORT - HEADQUARTERS JULY 30, 2002

Licensee/Facility:                     Notification:

Part 21 Database                       MR Number: H-02-0057
Rotork Controls                        Date: 07/30/02


Subject: Part 21 - Potential for electric valve actuator control
         switches to reset or fail to operate


Discussion:

VENDOR: Rotork Controls             PT21 FILE NO: m2-15-0

DATE OF DOCUMENT: 06/10/02          ACCESSION NUMBER: ml021790313

SOURCE DOCUMENT: LETTER             REVIEWER: RORP, D. Lanyi

Rotork Controls, a vendor of electric valve actuators, reported a
potential for distortion of add-on moulded components, causing control
switches to reset or fail to operate, in extreme circumstances. This
applies to Type NA1 electric valve actuators fitted with an Add-on-Pak 1
(AOP1) assembly, manufactured between 1978 and October 2001 and that have
a safety function and are used for end of travel indication. The
circumstances for this potential distortion are (1) that the actuator is
held in the fully open or closed condition and the AOP1 is set between
zero 3.5-7.5 percent of end of travel, depending on the gear ratio, and
(2) that the temperature of the AOP1 components is maintained above 80C
(176F) for more than 10 minutes.

Contact:    D. Lanyi, NRR
            301-415-1175
            E-mail: drl@nrc.gov

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HEADQUARTERS      MORNING REPORT     PAGE  2          JULY 30, 2002

Licensee/Facility:                     Notification:

Part 21 Database                       MR Number: H-02-0058
Asco                                   Date: 07/30/02


Subject: Part 21 - Excessive recycling of pump needed to maintain valve
         actuator shaft in powered position during testing


Discussion:

VENDOR: ASCO                        PT21 FILE NO: m2-16-0

DATE OF DOCUMENT: 06/19/02          ACCESSION NUMBER: ml021830047

SOURCE DOCUMENT: LETTER             REVIEWER: RORP, I. Jung

ASCO, a vendor of valve actuators, reported potential operational
difficulties with certain pumps supplied in pump kits and intended for
installation in NH95 Model B Hydramotor actuators. The vendor was
notified by Framatome ANP, the Clinton licensee, and the Palo Verde
licensee of excessive recycling of the pump, meaning actuation and
de-actuation of the pump to maintain the powered position of the actuator
shaft, during testing.

Contact:    I. Jung, NRR
            301-415-1837
            E-mail: ixj@nrc.gov
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