ML19347C826: Difference between revisions
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Date: 9/10/73 Time: 3:00 a.m. | |||
Time: 3:00 a.m. | |||
.- o . | .- o . | ||
/ ABNORMAL OCCURRENCE REPORT NO. 73-21 | / ABNORMAL OCCURRENCE REPORT NO. 73-21 | ||
==SUBJECT:== | ==SUBJECT:== | ||
Failure of 21 Ilydraulic Shock and Sway Arrestors on piping systems in the Drywell, including units on both Core Spray and both | Failure of 21 Ilydraulic Shock and Sway Arrestors on piping systems in the Drywell, including units on both Core Spray and both Isolation Condenser loops. | ||
Isolation Condenser loops | |||
This event is considered to be an abnormal occurrence as defined in the Technical Specifications, paragraph 1.15.D. Notification of this event as required by the Technical Specifications, para- | This event is considered to be an abnormal occurrence as defined in the Technical Specifications, paragraph 1.15.D. Notification of this event as required by the Technical Specifications, para- | ||
. grap:16.6.2.a, was made to AEC Region I, Directorate of Regulatory | . grap:16.6.2.a, was made to AEC Region I, Directorate of Regulatory Operations, by telephone on Monday, September 10, 1973, at 12:45 p.m., and personally to Mr. E. Greeman on Monday, September 10, 1973. | ||
Operations, by telephone on Monday, September 10, 1973, at 12:45 p.m., and personally to Mr. E. Greeman on Monday, September 10, 1973 | |||
SITUATION: The plant was shutdown on September 8,1973 for the purpose of inspecting the flydraulic Shock and Sway Arrestors located on | SITUATION: The plant was shutdown on September 8,1973 for the purpose of inspecting the flydraulic Shock and Sway Arrestors located on | ||
~ ~ | ~ ~ | ||
| Line 43: | Line 30: | ||
CAUSE: The snubbers were made inoperable due to a loss of hydraulic fluid. | CAUSE: The snubbers were made inoperable due to a loss of hydraulic fluid. | ||
REMEDIAL ACTION: | REMEDIAL ACTION: | ||
The failed liydraulit Shock and Sway Arrestors were replaced using | The failed liydraulit Shock and Sway Arrestors were replaced using snubbers ' rebuilt with seal kits supplied by the Bergen Paterson Pipe Support Company. The new' seals are of'a different type, which according to Bergen Paterson, will provide a longer seal life. | ||
snubbers ' rebuilt with seal kits supplied by the Bergen Paterson Pipe Support Company. The new' seals are of'a different type, which according to Bergen Paterson, will provide a longer seal life | |||
p | p | ||
O: 4 b~ | |||
O: 4 | |||
b~ | |||
AbnoEnal Occurrence . | AbnoEnal Occurrence . | ||
September 10, 1973 - - | September 10, 1973 - - | ||
Report No. 73-21 , | Report No. 73-21 , | ||
SAFETY SIGNIFICANCE: | SAFETY SIGNIFICANCE: | ||
The loss of snubber operability resulted in a reduction in the ability of the plant to safely survive a design bases earthquake. | The loss of snubber operability resulted in a reduction in the ability of the plant to safely survive a design bases earthquake. | ||
The failures were such that they affected both Core Spray and | The failures were such that they affected both Core Spray and e | ||
both Emergency Condenser Systems, e | |||
, o e | , o e | ||
e a I e | |||
e a I | e 0 | ||
e e o e | |||
e o e | |||
e 0 | e 0 | ||
6 -. | 6 -. | ||
e | e | ||
- - , e c ---}} | - - , e c ---}} | ||
Revision as of 01:40, 31 January 2020
| ML19347C826 | |
| Person / Time | |
|---|---|
| Site: | Oyster Creek |
| Issue date: | 09/10/1973 |
| From: | Rone A JERSEY CENTRAL POWER & LIGHT CO. |
| To: | |
| References | |
| AO-73-21, NUDOCS 8103040989 | |
| Download: ML19347C826 (2) | |
Text
.
Date: 9/10/73 Time: 3:00 a.m.
.- o .
/ ABNORMAL OCCURRENCE REPORT NO. 73-21
SUBJECT:
Failure of 21 Ilydraulic Shock and Sway Arrestors on piping systems in the Drywell, including units on both Core Spray and both Isolation Condenser loops.
This event is considered to be an abnormal occurrence as defined in the Technical Specifications, paragraph 1.15.D. Notification of this event as required by the Technical Specifications, para-
. grap:16.6.2.a, was made to AEC Region I, Directorate of Regulatory Operations, by telephone on Monday, September 10, 1973, at 12:45 p.m., and personally to Mr. E. Greeman on Monday, September 10, 1973.
SITUATION: The plant was shutdown on September 8,1973 for the purpose of inspecting the flydraulic Shock and Sway Arrestors located on
~ ~
piping systems throughout the Drfwell.
CAUSE: The snubbers were made inoperable due to a loss of hydraulic fluid.
REMEDIAL ACTION:
The failed liydraulit Shock and Sway Arrestors were replaced using snubbers ' rebuilt with seal kits supplied by the Bergen Paterson Pipe Support Company. The new' seals are of'a different type, which according to Bergen Paterson, will provide a longer seal life.
p
O: 4 b~
AbnoEnal Occurrence .
September 10, 1973 - -
Report No. 73-21 ,
SAFETY SIGNIFICANCE:
The loss of snubber operability resulted in a reduction in the ability of the plant to safely survive a design bases earthquake.
The failures were such that they affected both Core Spray and e
both Emergency Condenser Systems, e
, o e
e a I e
e 0
e e o e
e 0
6 -.
e
- - , e c ---