05000333/LER-1980-011-03, /03L-0:on 800110,during Surveillance Testing, Hydraulic Snubber Found Inoperable.Caused by Snubber Accumulator Cocked & O-ring Leakage.Overhaul & post-repair Testing Restored Snubber to Operable Status as Spare

/03L-0:on 800110,during Surveillance Testing, Hydraulic Snubber Found Inoperable.Caused by Snubber Accumulator Cocked & O-ring Leakage.Overhaul & post-repair Testing Restored Snubber to Operable Status as Spare

ML19262C563
Person / Time
Site:	FitzPatrick
Issue date:	02/09/1980
From:	Child V POWER AUTHORITY OF THE STATE OF NEW YORK (NEW YORK
To:	NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION I)
Shared Package
ML19262C562	List: 05000333/LER-1980-011, Forwards LER 80-011/03L-0 05000333/LER-1980-011-03, /03L-0:on 800110,during Surveillance Testing, Hydraulic Snubber Found Inoperable.Caused by Snubber Accumulator Cocked & O-ring Leakage.Overhaul & post-repair Testing Restored Snubber to Operable Status as Spare
References
LER-80-011-03L, LER-80-11-3L, NUDOCS 8002140474
Download: ML19262C563 (2)

LER-1980-011, /03L-0:on 800110,during Surveillance Testing, Hydraulic Snubber Found Inoperable.Caused by Snubber Accumulator Cocked & O-ring Leakage.Overhaul & post-repair Testing Restored Snubber to Operable Status as Spare

Event date:
Report date:
3331980011R03 - NRC Website

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POWER AUTHORITY OF THE STATE OF NEW YORK JAMES A. FITZPATRICK NUCLEAR POWER PLANT DOCKET NO. 50-333 ATTACHMENT TO LER 80-011/03L-0 Page 1 of 1 s....

While shutdown on December 29, 1979, inspection of hydraulic shock suppressors required by Technical Specification Paragraph 4.6.I. was conducted. As a result of this visual inspection, snubber 29-RIJ-S-146 (PFSK-1259) listed in Table 3.6.1 was replaced with a spare snubber.

Operability testing of the snubber which was removed was conducted on January 10, 1980 and revealed that the snubber was inoperable.

Since the failed snubber was replaced with a spare in accordance with Technical Specification Paragraph 3.6.I.4 prior to reactor startup on December 30, 1979, no significant hazard to the public health and safety existed.

Disassembly and inspection of the failed snubber revealed that the accumulator body was cocked and a failed "0" ring between the accumulator and valve body of the snubber allowed loss of hydraulic fluid.

Following overhaul of the snubber, satisfactory operation was demonstrated.

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