ML20080D558

Handwritten Notes & Calculations Re Const Activities & Fuel Load Preparation

ML20080D558
Person / Time
Site:	05000000, Grand Gulf
Issue date:	08/22/1979
From:	NRC
To:
Shared Package
ML082380886	List: ML20079E005 ML20079E130 ML20079F108 ML20079F306 ML20080D183 ML20080D196 ML20080D205 ML20080D208 ML20080D250 ML20080D255 ML20080D263 ML20080D277 ML20080D286 ML20080D297 ML20080D306 ML20080D318 ML20080D331 ML20080D335 ML20080D339 ML20080D343 ML20080D346 ML20080D350 ML20080D358 ML20080D362 ML20080D368 ML20080D375 ML20080D379 ML20080D381 ML20080D387 ML20080D392 ML20080D397 ML20080D409 ML20080D413 ML20080D416 ML20080D422 ML20080D425 ML20080D432 ML20080D461 ML20080D465 ML20080D469 ML20080D480 ML20080D491 ML20080D497 ML20080D514 ML20080D546 ML20080D558 ML20080D570 ML20080D582 ML20080D586 ML20080D590 ... further results
References
FOIA-83-498 NUDOCS 8402090159
Download: ML20080D558 (9)

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40 K8 g

[*g UNITED STATES NUCLEAR REGULATORY COMMISSION WASHINGTON, D. C. 20555 5

y 4,..... o JAN 2 2 1981 Docket Nos.:

50 d16/417 APPLICANTS:

Mississippi Power and Light Company Middle South Energy, Inc.

FACILITY:

Grand Gulf Nuclear Station, Units 1 and 2 SUBJEC f:

SUMMARY

OF NOVEMBER 19-21, 1980 CASELOAD FORECAST PANEL MEETING AND SITE VISIT On yovember 19-21, 1980, the caseload forecast panel met with representatives of the applicant (Mississippi Power and Light Company; and Middle South Energy, Inc.), their architect-engineer (Bechtel Power Corporation), and their NSSS supplier (General Electric Company) to review the construction and preoperational testing progress at the Grand Gulf Nuclear Station (GGNS) Unit 1 and to evaluate the most likely fuel load date.

The previous caseload forecast panel visit in August 1979 (report dated September had estimated a fuel load date of April 1981, compared to the applicant's 12, 1979)

The forecast panel's estimate was influenced by estimate of November 1980.

(1) the 1er:gth of time required for preoperational testing, concerns about:

(2) the probable adverse impact on the test schedule resulting from final electrical work, and (3) unforeseen delays which may develop in the construction work that still must be comoleted.

The panel met at the construction site on November 19, 1980, and was briefed In the on the plant's engineering and construction status during the morning.

af ternoon, the panel toured the plant and inspected the statt:s of construction On the following day the panel continued its tour of l

and turnover activity.

the plant, and met again with the applicant to discuss several issues which had been identified the previous day. An exit interview was held on November at the applicant's offices in Jackson, Mississippi. The meeting agenda 21, 1980 and attendees for the panel's site visit are listed in Enclosures 1 and 2, respectively.' The handouts provided at the meetings are available from the l

project manager.

By way of introduction, the applicant reiterated the company's financial and resource comitment to meet their predicted fuel load date of August 31, 1981, although their recent preliminary startup testing milestone schedule indicated l

I about 2-3 months of negative float in their predicted schedule. Mr. James P.

McGaughy, Jr., MP&L Assistant Vice President for Nuclear Production, stressed their intention to get the project back on schedule, and discussed organizational changes recently adopted which should result in considerable progress in controlling the construction and startu. effort.

n V

i

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'JAN 2 2 19 81 The status of plant design, procurement, manpower, construction, startup pre-operational test program, resolution of 50.55e items, and the impact of recent licensing requirements are discussed below.

Plant Design Plant design is being performed by Bechtel Power Corporation, at both their i

Gaithersburg, Maryland offices and at the plant site.

Overall design and engineering on Unit 1 and common facilities required for Unit 1 operation are estimated to be 90% complete, with essentially only electrical work remaining.

However, these estimates do not reflect er.gineering required for outstanding

?

issues such as ATWS, TMI requirements, the Power Generation Control Com)1ex, or rework.

The applicant indicated that engineering is proceeding on t1ese outstanding items, and is not expected to impact their fuel load schedule.

Procurement Procurement of bulk quantities appears to be in good shape and is estimated now to be above 90% overall. Procuremerit of 273 of 313 major purchase orders is complete, with delivery of the remaining incomplete orders scheduled for the first half of 1981.

Manpower MP&L described the construction work force activities and iridicated that manpower availebility for completion of Uni.t 1 should not be a problea. The current' work force of about 1700 represents the full complement needed to complete Unit 1 and is not expected to increase significantly in the future.

In addition, contracts with local unions, many of which expire in mid 1981, contain no-strike agreements.

Construction MP&L described construction progress since the last forecast panel ( August 1979).

They indicated that the current work scope has expanded from that previously estimated, and that the current estimate of 86% complete reflects an 18% workoff (1.2% per month) since August 1979.

In order to support ar August 31,1931 fuel load with construction at about 96% complete, an average workoff rate of 1% per month would have to be sustained. for the remaining 10 months.

i t

1 W 2 2 1931

_ As indicated in Enclosure 3, concrete work is 99% complete. Large pipe Cable hangers and small pipe hangers are 90% and 80% complete, respectively. Wire and trays have been completely installed.

The required quantities of conduit 87% complete, and connection 79% complete.

and cable pulling have been increased over previous estimates, thus necessitating a substantial level of effort to complete these items within the current schedule.

A comprison of Grand Gulf cable pulling experience in 1980 with those quantities required in 1981 to meet the scheduled August 1981 fuel load date is provided in Enclosure 3.

Status and Resolution of 50.55(e) Items MP&L discussed the design deficiencies that have been identified and reported to the NRC pursuant to 10 CFR 50.55(e), and stated that these are being resolved and are not expected to impact the construction schedule. They indicated that the number of potentially reportable deficiencies reflects MP&L's cooperation in reporting this information to NRC Region II, rather than excessive deficiencies at Grand Gulf. Potential problem areas identified include:

(1) ventilation ductwork; (2) fillet welds; (3) OA related to reactor controls design; and 3

(4) Hilti anchor bolts.

In view of the length of time a number of these items have been outstanding, the panel expressed a concern regarding thei-resolution and workoff so as not to impact the fuel lead schedule.

Effects of Recent Licensing Requirements MP&L indicated that they are actively pursuing implementatien of recent TMI requirements, and that all items are expected to be implemented in accordance In addition, they expect no fuel load impacts with the required NRC schedules.

with respect to ATWS or environmental qualification requirements.

Startup Preoperational Test Program The startup preoperational test program and milestones were outlined by the applicant. In contrast to their previous estimate of 18 months, they now consider a period of two years, from plant energization in May 1979 until Although this compares f avorable May 1981, sufficient te accomplish this program.

with an industry average of about 24 months, this may be misleading due to The applicant indicated that the limited number of system turnovers to date.

the average number of turnovers is projected to increase from about 3.2 per The actions taken by the month in 1980, to about 10-15 per month in 1981. (1) combining the component applicant to achieve this improvement include:

turnover and startup groups to improve coordination and flexibility; (2) the formation of a turnover package group to increase administrative efficiency; and (3) establishment of daily critical items meetings, held on-site, to identify and oversee critical path items.

l

w JAN 2 2 1.98

_4_

The panel considers the preoperational test schedule to be the major delaying item for plant fuel load. Our reasons are as follows:

Recent experience with other plants indicates an industry average of about 1) 5-7 system turnovers per month, whereas MP8L projects a turnover rate higher than this. Even a doubling of their past turnover rate would place the applicant's fuel load at about July 1982:

2) The applicant stated that a preliminary review of their preoperational critical path schedule indicates a possible delay in fuel load of about 2-3 months; and

3) The completion of remaining electrical work is likely to interfere with and delay preoperational testing.

Conclusion The applicant has made significant progress in actual construction since the last caseload forecast panel meeting, and is implementing aggressive managerial techniques to expedite coaponent and system turnovers and reduce the number of The applicant stressed the company's conunitment to meet its punch list items.

predicted August 1981 fuel load date, but indicated that re".ent delays in system turnovers could result in a slippage of between 2-3 months. However, 7

the panel feels this prediction is overly optimistic. Based on the panel's experience with plant construction and preoperational testing, using the same techniques that have been used to estimate the fuel load date for all other-domestic facilities, and considering the general rework currently in progress and the final electrical work remaining, the panel estimates a fuel load date In making this estimate, the forecast panel noted that, although of July 1982.

not factored into this conclusion, there are several issues which could potentially result in additional delays to the fuel load cate. These include:

1) resolution of suppression pool hydrodynamic loads questions;

2) resolution of TMI requirements and ATWS issues; 3) resolution of environmental qualification of equipment; and

4) impact of the Hilti anchor bolt design deficiency and resolution of other design deficiencies that currently exist or may arise in the fcture.

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TAN 2 2 1961 5-The panel further concluded that the estimated fuel load date depends on aggressive construction and preoperational testing progress, and high quality work and system turnovers. The panel stressed the commitment of the NRC staff to complete its licensing review in a timely but thorough manner so as not to delay plant operation unnecessarily.

Joseph A. Martore, Pro,iect Manager Licensing Branch #3 Division of Licensing Enclosoures:

1.

Meeting Agenda 2.

Meeting Attendees 3.

MP&L Documentation cc:

See next page.

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