ML051460500
| ML051460500 | |
| Person / Time | |
|---|---|
| Site: | Point Beach  |
| Issue date: | 04/11/2004 |
| From: | Nuclear Management Co |
| To: | Office of Nuclear Reactor Regulation |
| References | |
| CAP055587, FOIA/PA-2004-0282 | |
| Download: ML051460500 (1) | |
Text
- Nuclear Management Company Pa, e I of 2 IF"110PY k 11-
i-State Change History Initiate 0
by SHANNON. DAN AR Pre-Screen 411112004 11:52:48 PM Owner (None) c Section 1 Activity Request Id:
Activity Type:
4 One Line
Description:
4i Detailed
Description:
Initiator:
Date/Time of Discovery:
Identified By:
Equipment # (1st):
Equipment # (2nd):
Equipment # (3rd):
Site/Unit:
Why did this occur?:
CAP055587 X-CAP Submit Date:
-01111/2004 11:52:48 PM]
S/G Nozzle Dam Installation Dose Exceeded Estimate 4/11/2004 11:52:45 PM - SHANNON, DAN:
During the installation of the S/G nozzle dams for the U1R28 refueling outage, the dose received (4375 mrem) exceeded the estimate from the pre-job ALARA review.4244e~ffrem).
SHANNON DAN LD Initiator Department:
PR Radiation Protection E;_
J Ps 4/11/2004 11:14:30 PM Date/Time of Occurrence:
4/9/2004 3:14:30 PM Site-identified System:
(None)
(None)
Equipment Type (1st):
(None)
(None)
Equipment Type (2nd):
(None)
(None)
Equipment Type (3rd):
(None)
Point Beach - Unit 1 4/11/2004 11:52:48 PM - SHANNON, DAN:
There were several contributing factors which caused the dose for this job to exceed the estimate. These factors include but are not limited to: 1. Problems with use of bubble hood respirators, 2. Difficulties with Installation of the nozzle dams which caused extra jumps and more time spent on the platform than that expected (based on unit 2). 3. Removal and reinstallation of A S/G Holleg nozzle dam due to not having an RCS vent path, 4. Delays caused by the need for additional personnel to perform jumps. 5. Lack of a proper jump platform for the A S/G jumps.
Immediate Action Taker Recommendations:
6 Notify Me During Eval?:
E Section 2 Operability Status:
Basis for Operability:
4; Unplanned TSAC Entry:
E Section 3 The amount of extra dose received due to factor #3 was approximately 900 mrem. The amount of extra dose due to factors #1, 2 4, and 5 collectively totals the remainder 0-,695-mrem).
- gig, I:
4/11/2004 11:52:48 PM - SHANNON, DAN:'
Engineering programs lead determine lessons learned with input from Scientech and the i F group and implement these lessons prior to nozzle dam removal for unit 1 and the next refueling outage.
N (No N
_ SRO Review Required?:
N ne) c6 Compensatory Actions: N 6 External Notification:
N AI Screened?:
N Significance Level: (None)
N Potential MRFF?:
N i OA/Nuclear Oversight?: N t Licensing Review?: N InfOema in vis record Was det-Wd Inaccrccoliim=
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Inappropriate Action:
Process:
(None)
Activity:
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