ML050830313: Difference between revisions
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{{#Wiki_filter:I Ha roid Chiern-o-ff, - PojntBeac"hR`CCA_ Inciden-t -Pre flm-in ary-in-forma-tion | {{#Wiki_filter:I Ha roid Chiern-o-ff, - PojntBeac"hR`CCA_ Inciden-t -Pre flm-in ary-in-forma-tion Paae 1 I Harold Chernff | ||
To: | - Point Beach RCCA Incident -Preliminary lnf ormation Paae 1 1 From: | ||
Harold Chernoff. | |||
To: | |||
Lakshminaras Raghavan f2IM Date: | |||
Fri, Apr 30, 2004 9:38 AM | |||
==Subject:== | ==Subject:== | ||
Point Beach RCCA Incident -Preliminary Information Attached is a summary of an incident that occurred at Point Beach yesterday. They were in the process of swapping an RCCA to a different fuel assembly in the spent fuel pool. Thsy ended up traversing the bridge with the RCCA partially inserted (-2 feet) into a fuel assembly. | Point Beach RCCA Incident -Preliminary Information Attached is a summary of an incident that occurred at Point Beach yesterday. They were in the process of swapping an RCCA to a different fuel assembly in the spent fuel pool. Thsy ended up traversing the bridge with the RCCA partially inserted (-2 feet) into a fuel assembly. | ||
Neither the fuel assemly or RCCA will be re-used although the extent of damage, if any, has not yet been determined. Fuel movement was halted (-18 hours) during investigation of this incident. The cause has not yet been determined. | Neither the fuel assemly or RCCA will be re-used although the extent of damage, if any, has not yet been determined. Fuel movement was halted (-18 hours) during investigation of this incident. The cause has not yet been determined. | ||
Harold Chernoff, Project Manager - Point Beach Project Directorate 111-1 Division of Licensing Project Management Office of Nuclear Reactor Regulation Office: (301) 415-4018 Fax: (301) 415-1222 CC: | Harold Chernoff, Project Manager - Point Beach Project Directorate 111-1 Division of Licensing Project Management Office of Nuclear Reactor Regulation Office: (301) 415-4018 Fax: (301) 415-1222 CC: | ||
Carl Lyon; Eric Leeds; Margie Kotzalas; Tad Marsh; William Ruland | |||
t Harold Chernoif - | t Harold Chernoif - point beach rcca wpd Page 1 Control rd contlced top of fuel assembly dirkg RCCA changing 4l2, O4 636:02 PM - STALZER,Cl-JARLES: | ||
During Unit I R28 fuel motion.-a move d a RCCA forn spont fuel pool position G-28 to G-27 was being performed. The SFP bridge operalots latched the conmol rod and withdrew | During Unit I R28 fuel motion.-a move d a RCCA forn spont fuel pool position G-28 to G-27 was being performed. The SFP bridge operalots latched the conmol rod and withdrew It using the RCCA change iool. The RGCA change lool operator beleved he had pioper indftaton on the tool for thv rod befg fully up. After [he RCCA change tool peralorroported the CAwas fully up, the SFP supervisor viewed the RCCA cmnge tool aind cocutred. | ||
The tool was then rased and the bridge was Indexed. The second operator on the brdge wanted to verf th@ | The tool was then rased and the bridge was Indexed. The second operator on the brdge wanted to verf th@ | ||
the newlocatlon (SG.27) was ready to receive w RCCA. The bridge operator raised tfs RMA chNgetlool | at the newlocatlon (SG.27) was ready to receive w RCCA. The bridge operator raised tfs RMA chNgetlool nfh the hotst s far as hie could and Ihen pish Ie ktool towvrd th sout to 9ihew Iho new locaon. Both operators agreed tat the sserrbwas empt@. The BSFP oilsorwas also usig binoculars to verflythe acceptablUtyW the fuel assembly In G-27 fo an ICCA es s8eerate acn. | ||
After verffon thial te assambly was ready to rxeicve an RCCA, the tool Uri lwered iWth the hoiA' .uAnring thEk tift, the lol Wicked Cut fin | After verffon thial te assambly was ready to rxeicve an RCCA, the tool Uri lwered iWth the hoiA'.uAnring thEk tift, the lol Wicked Cut fin hei runlerchovIse dlrecion. Work wtth the RCCA change tool ms s"opped. | ||
The tool opaator noted that the cable on the cum of he change tool was slat iuallj | The tool opaator noted that the cable on the cum of he change tool was slat iuallj frbn the poot, it shaivd that Iheic wre RCCA rods sticking from the bottom of the tool and rtSng on1G28. The brgehoist was oer G- | ||
-2Tv th the too hanmjng cocked toward G-2a. The werght on the tool wa5 approxiftely -8pounds, Irdicating-the rodwas sffeng on theful assembl, along t on aftilwelgit. either fro the tool Itsellforfom a load due to bsing out oa'igent. | |||
RNior erlngrring, thIe CC andcontrol roo were coniact. | RNior erlngrring, thIe CC andcontrol roo were coniact. | ||
'Evalual by reactorengbieedrng was perfoe 6rludInr inspedon with an uidsrwaier canera of the ROCA | |||
'Al first lo* fre wsInctor, of RCCA Wets tat were not stralit. The RCCA change to was used to rais the rod. The rod was ralsed appr 1ately 2 feet lo robUn to rod full up and the tool tpperwed f9 OFai normally. Onee waijhtwas 1*@I ofoF the lRCCA,'ihe roilels asppeared to stralghlen.}} | |||
Latest revision as of 21:14, 15 January 2025
| ML050830313 | |
| Person / Time | |
|---|---|
| Site: | Point Beach  |
| Issue date: | 04/30/2004 |
| From: | Chernoff H NRC/NRR/DLPM/LPD3 |
| To: | Raghavan L NRC/NRR/DLPM |
| References | |
| FOIA/PA-2004-0282 | |
| Download: ML050830313 (2) | |
Text
I Ha roid Chiern-o-ff, - PojntBeac"hR`CCA_ Inciden-t -Pre flm-in ary-in-forma-tion Paae 1 I Harold Chernff
- Point Beach RCCA Incident -Preliminary lnf ormation Paae 1 1 From:
Harold Chernoff.
To:
Lakshminaras Raghavan f2IM Date:
Fri, Apr 30, 2004 9:38 AM
Subject:
Point Beach RCCA Incident -Preliminary Information Attached is a summary of an incident that occurred at Point Beach yesterday. They were in the process of swapping an RCCA to a different fuel assembly in the spent fuel pool. Thsy ended up traversing the bridge with the RCCA partially inserted (-2 feet) into a fuel assembly.
Neither the fuel assemly or RCCA will be re-used although the extent of damage, if any, has not yet been determined. Fuel movement was halted (-18 hours) during investigation of this incident. The cause has not yet been determined.
Harold Chernoff, Project Manager - Point Beach Project Directorate 111-1 Division of Licensing Project Management Office of Nuclear Reactor Regulation Office: (301) 415-4018 Fax: (301) 415-1222 CC:
Carl Lyon; Eric Leeds; Margie Kotzalas; Tad Marsh; William Ruland
t Harold Chernoif - point beach rcca wpd Page 1 Control rd contlced top of fuel assembly dirkg RCCA changing 4l2, O4 636:02 PM - STALZER,Cl-JARLES:
During Unit I R28 fuel motion.-a move d a RCCA forn spont fuel pool position G-28 to G-27 was being performed. The SFP bridge operalots latched the conmol rod and withdrew It using the RCCA change iool. The RGCA change lool operator beleved he had pioper indftaton on the tool for thv rod befg fully up. After [he RCCA change tool peralorroported the CAwas fully up, the SFP supervisor viewed the RCCA cmnge tool aind cocutred.
The tool was then rased and the bridge was Indexed. The second operator on the brdge wanted to verf th@
at the newlocatlon (SG.27) was ready to receive w RCCA. The bridge operator raised tfs RMA chNgetlool nfh the hotst s far as hie could and Ihen pish Ie ktool towvrd th sout to 9ihew Iho new locaon. Both operators agreed tat the sserrbwas empt@. The BSFP oilsorwas also usig binoculars to verflythe acceptablUtyW the fuel assembly In G-27 fo an ICCA es s8eerate acn.
After verffon thial te assambly was ready to rxeicve an RCCA, the tool Uri lwered iWth the hoiA'.uAnring thEk tift, the lol Wicked Cut fin hei runlerchovIse dlrecion. Work wtth the RCCA change tool ms s"opped.
The tool opaator noted that the cable on the cum of he change tool was slat iuallj frbn the poot, it shaivd that Iheic wre RCCA rods sticking from the bottom of the tool and rtSng on1G28. The brgehoist was oer G-
-2Tv th the too hanmjng cocked toward G-2a. The werght on the tool wa5 approxiftely -8pounds, Irdicating-the rodwas sffeng on theful assembl, along t on aftilwelgit. either fro the tool Itsellforfom a load due to bsing out oa'igent.
RNior erlngrring, thIe CC andcontrol roo were coniact.
'Evalual by reactorengbieedrng was perfoe 6rludInr inspedon with an uidsrwaier canera of the ROCA
'Al first lo* fre wsInctor, of RCCA Wets tat were not stralit. The RCCA change to was used to rais the rod. The rod was ralsed appr 1ately 2 feet lo robUn to rod full up and the tool tpperwed f9 OFai normally. Onee waijhtwas 1*@I ofoF the lRCCA,'ihe roilels asppeared to stralghlen.