ML20151K639
| ML20151K639 | |
| Person / Time | |
|---|---|
| Site: | Grand Gulf  |
| Issue date: | 01/25/1985 |
| From: | Wegner M NRC OFFICE OF INSPECTION & ENFORCEMENT (IE) |
| To: | Baer R NRC OFFICE OF INSPECTION & ENFORCEMENT (IE) |
| Shared Package | |
| ML20151K644 | List: |
| References | |
| FOIA-86-262 NUDOCS 8502010062 | |
| Download: ML20151K639 (6) | |
Text
F y'. s f'o, GG68 gP UNITED STATES g
NUCLEAR REGULATORY COMMISSION g
j WASHINGTON,0. C. 20555
~s.,...../
JAN 2 5 iod MEMORANDUM FOR:
R. L. Baer, Chief Engineering and Generic Comunications Branch Division of Emergency Preparedness and Engineering Response THRU:
D. P. Allison, Section Chief Section B 1
Engineering and Generic Communications Branch /
Division of Emergency Preparedness and Engineering Response FROM:
Mary Wegner Engineering and Generic Comunications Branch Division of Emergency Preparedness and Engineering Response
SUBJECT:
FAILURE OF AUTOMATIC SPRINKLER SYSTEM VALVES TO OPERATE ENCLOSURES:
(1)
IN 84-16 (2) Letter dated June 4, 1984:
C. B. Barnett, Automatic Sprinkler, to R. C. DeYoung, IE (3) Form Letter dated November 15, 1984:
- Gullo, Autenatic Sprinkler (4) List entitled " Utilities with Permits to Build Nuclear Power Plants" I am writing to inform you of the current status of the subject problem and our conclusion that no cdditional generic comunications are warranted at this time.
Mississippi Power and Light (MP&L) reported failures to actuate of the auto-matic deluge valve of their fire protection system in LER 50-416/83-126. An infonnation notice was requested by the Region and was issued (Enclosure 1).
Automatic Sprinkler's response (Enclosure 2) stated that no design or manufac-turing problem existed with the Vedel C deluge valve. Automatic Sprinkler Company concluded, at that time, that the problems at Grand Gulf were unique.
We received several calls from licensees following the issuance of IN 84-16.
Most callers were aware of Automatic Sprinkler's position.
Contact:
M. S. Wegner, IE (301) 492-4511 06WD0.L@@60 )(h t
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't R. L. Baer Then on November 16, 1984, Automatic Sprinkler Company notified the NRC by telephone that they had become aware of a potential problem which could affect the fire protection of customer facilities. Automatic Sprinkler Company noti-fied all utilities with permits to build nuclear power plants (Enclosures 3 and 4). The form letter states that the problem has been duplicated by testing and that failures involving a total of seven valves were reported in 1984. The suspected cause is increased friction in the sliding surfaces. The letter strongly recomends an augmented annual inspection.
Since Automatic Sprinkler Company has notified all licensees of its new find-ings and has strongly recommended appropriate surveillance and maintenance action, we do not plan tq issue any additional generic communications at this time.
Mary Wegner Engineering and Generic Comunications Branch Division of Emergency Preparedness and Engineering Response cc:
J. M. Taylor, IE DISTRIBUTION E. L. Jordan, IE_
DCS D. P. Allison, IE DE,PER r/f M. S. Wegner, IE G CB r/f E. Rossi, IE MWegner r/f T. E. Conlan, RII V. Cenaraya, MRR R. Heishman, IE L. Cobb, IE P. McKee, IE G. Ankrum, IE R. W. Starostecki, RI J. A. Olshinski, RII C. E. Norelius, RIII R. P.'Denish, RIV D. F. Kirsch, RV E. Blackwood, ED0
Enclosures:
As stated
- See previous concurr ce 9
- DEPER:IE DEPER:IE MWegner DPAllison 1/ /85 1/g/85 l
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ENCLOSURE 1 9
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D UNITED STATES
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NUCLEAR REGULATORY COMMISSION h*
WASHINGTON, D. C. 20555
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94 JAN 2 S iod MEMORANDUM FOR:
R. L. Baer, Chief Engineering and Generic Comunications Branch Division of Emergency Preparedness and Engineering Response THRU:
D. P. Allison, Section Chief Section B
'7)
Engineering and Generic Comunications Branch y Division of Emergency Preparedness and Engineering Response FROM:
Mary Wegner Engineering and Generic Comunications Branch Division of Emergency Preparedness and Engineering Response
SUBJECT:
FAILURE OF AUTOMATIC SPRIHKLER SYSTEM VALVES TO OPERATE ENCLOSL*RES:
(1)
IN 84-16 (2) Letter dated June 4, 1984:
C. B. Ba rnett, Automatic Sprinkler, to R. C. DeYoung, IE (3) Form Letter dated November 15, 1984:
- Gullo, Autenatic Sprinkler (4) List entitled " Utilities with Permits to Build Nuclear Power Plants" I at writing to ir. form you of the current status of the subject problem and our conclusion that ne cdditional generic communications are warranted at this tine.
Mississippi Power and Light (MP&L) reported failures to actuate of the auto-matic deluge valve of their fire protection system.in LER 50-416/83-126. An information notice was requested by the Region and was issued (Enclosure 1).
Automatic Sprinkler's response (Enclosure 2) stated that~ no design or manufac-turing problem existed with the Model C deluge valve.
Automatic Sprinkler Company concluded, at that time, that the problems at Grand Gulf were unique.
We received several calls from licensees following the issuance of IN 84-16.
Most callers were aware of Automatic Sprinkler's position.
Contact:
M. S. Wegner, IE (301) 492-4511 c//3 ' \\
R. L. Baer JAN 2 5 E5 Then on November 16, 1984, Automatic Sprinkler Company notified the NRC by telephone that they had become aware of a potential problem which could affect the fire protection of customer facilities.
Automatic Sprinkler Company noti-fied all utilities with permits to build nuclear power plants (Enclosures 3 and 4).
The form letter states that the problem has been duplicated by testing and that failures involving a total of seven valves were reported in 1984.
The suspected cause is increased friction in the sliding surfaces.
The letter strongly recomends an augmented annual inspection.
Since Automatic Sprinkler Company has notified all licensees of its new find-ings and has strongly recommended appropriate surveillance and maintenance action, we do not plan to issue any additional generic communications at this time.
Mr r
Engineering and Generic Comunications Branch Division of Emergency Preparedness and Engineering Response cc:
J. M. Taylor, IE E. L. Jordan, IE D.f. Allison, IE P
- 7. S. Wegner, IE E. Rossi, IE T. E. Conlan, RII V. Benarcya, NRR R. Heishman, IE L. Ccbb, IE P. McKee, IE G. Ankrum, IE R. W. Starostecki, RI J. A. Olshins.ki, RII C. E. Norelius, RIII R. P. Denise, RIV D. F. Kirsch, RV E. Blackwood, EDO
Enclosures:
As stated l
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