ML20198K199

Insp Repts 50-369/86-11 & 50-370/86-11 on 860407-11. Violation Noted:Failure to Rept Erratic Valve Stroke Times

ML20198K199
Person / Time
Site:	Mcguire, McGuire
Issue date:	05/13/1986
From:	Blake J, Coley J NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION II)
To:
Shared Package
ML20198K185	List: ML20198K181 ML20198K188 ML20198K199
References
50-369-86-11, 50-370-86-11, NUDOCS 8606030360
Download: ML20198K199 (10)

See also: IR 05000369/1986011

Text

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o UNITED STATES

Sa KE c ,#'o NUCLEAR REGULATORY COMMISSION

REGION 11

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$ j 101 MARIETTA STREET. N.W.

• ' s ATL ANTA. G EORGI A 30323

%+..../

Report Nos.: 50-369/86-11 and 50-370/86-11

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Licensee: Duke Power Company

422 South Church Street

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Charlotte, NC 28242-

Docket Nos.: 50-369 and 50-370 License Nos.: .NPF-9 and NPF-17

Facility Name: McGuire 1 and 2

! Inspection Conducted: April 7-11, 1986

Inspector: A.M fu J- / -

Effective period of certification

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Signature of individual certifying title and level

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Basis used for csrtification, such as the required number of

training hours, etc. for the examination method specified

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Annual visual acuity, color vision examination, and periodic

recertification- '

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c. The inspector observed the ultrasonic examinations including calibra-

tion activities for the following:

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Weld / Component

, , Identification item Number Component Description

2 SGB-VH-7-9 C02.021.004 Steam Generator 2B Main

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Steam Nozzle to Upper Head

Weld

2 SGB-UH-7-9 C02.022-004 Main Steam Nozzle Inside

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Radius Examinations

The inspections were compared with applicable procedures in the

following areas:

(1) Availability of and compliance with approved NDE procedure

(2) Use of knowledgeable NDE personnel

(3) Use of NDE personnel qualified to the proper level

(4) Recording of inspection results

(5) Type of apparatus used -

1 (6) Extent of coverage of weldment  ;

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(7) Calibration requirements -

(8) Search units -

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! (9) Beam angles - '

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(10) DAC curves

(11) Reference level for monitoring discontinuities

(12)_. Method of demonstrating penetration

(13) Limits of evaluating and recording indications -

(14) Recording significant indicatitins' ~ .

(15) Acceptance limits -

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Certification records for materials and eq'uipment used in the above

examinations werczalso reviewed by the inspector.

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d. The inspector observed the magnetic particle examination of the

following integral attachment weld on the main steam system:

Component Identification Item Number Procedure

2-MCA-SM-H101 C3.40.12 NDE-25, hvision 8

The above magnetic particle examination was observed to determine

whether the following test attributes were as specified in the

applicable test procedure:

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Material surface preparation / cleanliness

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Material surface temperature

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Light intensity

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Particle contrast

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Examination technique / coverage

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Yoke lifting power

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Magnetizing current

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Pole spacing

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Examination personnel knowledgeable of limiting test factors

The inspector observed the following test limiting factors during the

examination of the above weld:

(1) The magnetic particle examiner was observed taking initial

magnetic field strength readings with his magnetic field indicator

positioned upside down. The inspector questioned the examine" as to

which side of the field indicator should be used to check i.he

magnetic field and the examiner answered the inspector's question

correctly. However, as stated above, the examiner had

inadvertently positioned the field indicator incorrectly and had

proceeded to examine the weld. When the inspector requested the

examiner to re-check his magnetic field on the weld, a magnetic

field could not be obtained.

(2) A portable light mounted on the yoke was observed to produce a

light source les, reflective of the ferromagnetic particles than a

light source established using a flashlight. Investigation into

this problem revealed that in some instances the magnetic

particles on the field indicator could not be seen using the yoke

mounted light, however, a flashlight clearly revealed a definite

field of particles.

(3) As stated briefly in item (1) above, a magnetic field could not be

established in the weld under examination when using dry powder

magnetic particles with alternating current (AC) yokes or with

direct current (DC) prods. The reason for this abnormality was

not established by the licensee during the inspector's visit.

Since the weld examined above was not unique in configuration and

field strength indicators are not required to be used prior to

, each examination by the examination procedure, welds previously

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= _ .. .__ _. _ _ _ . _ _ _ _ . _ - - _ _ _ _ _. .. _ _ .

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,

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j examined by the licensee may have been accepted when, in fact, a

magnetic field for dry particle examination may not have been  ;

induced into the weld.

(4) Procedure No. NDE-25, Appendix A, invokes the general requirements

{' of the Code for using a magnetic particle field indicator. However,

the test procedure fails to specify wt.en or on what specific

, components and shapes the magnetic particle field indicator

should be used.

At the conclusion of the inspection, the licensee was actively

investigating the cause and possible effects of the magnetic particle

examination abnormality reported by the inspector. Until the

licensee's investigation is complete and the scope of the problem

determined. This issue will be identified as Unresolved Item

370/86-11-01, Magnetic Particle Examination of Integral Attachments.

Within the areas examined, no violation or deviation was identified.

7. Inservice Inspection Data Review and Evaluation (737558) Unit 2

The inspector reviewed nondestructive examination (NDE) records for the

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current inspection period to ascertain whether the extent and frequency of

examinations were consistent with the Technical Specification and the NRC

accepted ISI program whether they met the minimum examination requirements

specified in the applicable addenda of ASME Section XI, whether they had

, been reviewed by the Authorized Nuclear Inservice Inspector. See

paragraph 5 above for the applicable Code.

a. NDE records for the following pressure retaining piping system welds

were selected by the inspector

Weld Identification Item Number Piping Description

'

2 PZR-W1SE B05.020.001 14" Diameter,

Pressurizer Surge

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Nozzle Safe-End

2 PZR-W2SE B05.020.001 4" Diameter, .

Pressurizer Spray

Nozzle Safe-End

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The records for the above welds were reviewed to determine whether they

contained or provided reference to the following documents:

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Examination results and data sheets

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Examination equipment data

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Calibration data sheets

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Examination evaluation data

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Records on extent of examination

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Records of deviation from program and procedures including

justification for deviation, if applicable

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Records on disposition of findings

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Re-examination data after repair work, if applicable

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Identification of NDE material such as penetrant, penetrant

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cleaner, couplant, films, tapes, etc.

b. HOE records for the following pressure vessel welds were selected by

the inspector: ,

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Weld Identification Item Number Component Description

2 PZR-5 B.02.011.002 Pressurizer Upper Head to

Shell Circumferential

Weld - 91.5 inches in

Length

2 PZR-9 B.02.012.002 Pressurizer Upper Head to

Shell Longitudinal Weld -

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91.5 inches in Length

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The records for the above welds were reviewed to ascertain that the

following requirements were met:

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The method, extent, and technique of examination complied with the

licensee's ISI program and applicable NDE procedure.

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The examination data were within the acceptance criteria as

outlined in the applicable NDE procedure and applicable Code

i

requirements.

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The recording, evaluating, and dispositioning of findings were in

compliance with the applicable NDE procedure and Code requirements.

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Inservice NDE results were compared with the recorded results of t

prior Section XI examinations.

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The method used for NDE was sufficient to determine the full

extent of indication or acceptance.

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Within the areas examined, no violation or deviation was identified.

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8. Production Welding (55050) Unit 2

-The inspector observed production welding to determine through direct

observation whether welding activities are performed in accordance with the

ASME Code. See paragraph 5 above for the applicable code.

Welding activities for the following welds were observed:

Weld Identification Size / Class Activity Observed

CA 2FW43-25 4" Diameter / Class C Fitup of Open Butt Weld

CA 2FW42-38 " Diameter to 4" In Process Welding of

Diameter / Class C Branch Connection Groove

Weld

CA 2FW43-1 4" Diameter / Class C In Process Welding of Open

Butt Weld

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The welding was observed to determine whether:

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Work was conducted in accordance with a document which coordinates and

sequences operations, references procedures, establishes hold points,

and provides for production and inspection approval.

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Procedures, drawings, and other instructions were at the work station

and readily available.

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WPS assignment was in accordance with applicable Code requirements.

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Welding technique and sequence were specified and adhered to.

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Welding filler materials were the specified type and traceable to

certifications.

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Weld joint geometry was in accordance with applicable procedure and was

inspected.

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Alignment of parts was as specified.

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Temporary attachments were by qualified welders in accordance with a

qualified WPS.

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Preheat and interpass temperatures were in accordance with applicable

procedures.

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Welding tecnnique was in accordance with applicable procedures.

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Electrodes were used in positions and with electrical characteristics

specified.

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Shielding gas was in accordance with the welding procedure.

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Welding equipment was in good condition and automatic welding equipment

was calibrated.

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Interpass cleaning was in accordance with applicable procedures.

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Temporary attachments were removed in accordance with applicable

procedures.

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Gas purging, if specified, was used in accordance with applicable

, procedure.

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Process control system had provisions for repairs.

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Welders were qualified.

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No peening performed on root and surface layers.

Within the areas examined, no violation or deviation was identified.

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