ML20211F444
| ML20211F444 | |
| Person / Time | |
|---|---|
| Site: | Nine Mile Point  |
| Issue date: | 10/17/1986 |
| From: | Lempges T NIAGARA MOHAWK POWER CORP. |
| To: | Murley T NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION I) |
| References | |
| NMP-21323, NUDOCS 8610310159 | |
| Download: ML20211F444 (2) | |
Text
I 4
o NMP-21323 NIAG ARA MOH AWK POWER CORPORATION NIAGARA MOHAWK 300 ERIE SOULEVARD west SYRACUSE N.Y 13202 are see L
aavoe October 17, 1986 Dr. Thomas E. Murley Regional Administrator United States Nuclear Regulatory Commission Region 1 631 Park Avenue King of Prussia, PA 19406 RE: Docket No. 50-220 SPECIAL REPORT Gentlemen:
In accordance with Nine Mlle Point Unit 1 Technical Specification 3.6.10.1 and 6.9.2.b, we hereby submit the following Special Report concerning inoperable penetrations.
On September 4,1986, the following Fire Barrier Penetrations were declared nonfunctional: 4RF-21, 24, 26, 29, 32, 37, 40, 44, 48, 61, 62, and 77.
These penetrations were disturbed during the 1986 refueling outage for the replacement of four containment spray heat exchangers.
These penetrations were not breached. However, associated piping work damaged the penetration 4
seals.
In accordance with Technical Specification 3.6.10.1.c, the fire detectors on one side of the nonfunctional fire barrier were verified, and a fire watch patrol was established.
The penetrations have been subsequently repaired and were returned to an operable status on October 3, 1986.
On September 3, 1986, Fire Door D-107 was found to have a closure problem, the door was rubbing against the side jamb. On September 29, 1986, work to repair the closure problem was completed.
However, at that time a nonconformance report was written against Fire Door D-107 since it would not close by its own power. The positive Auxiliary Control Room pressure was greater than the door's closure power. On October 14, 1986, the door closure was reworked to eliminate the door closing problem.
This rework failed to correct the problem.
8610310159 861017 PDR ADOCK 05000220 S
PDR 1
fi:n ?
p.
Page NMP-21323 Measures to maintain compliance with Section 3.6.10.1 of Plant Technical Specifications have been implemented.
Engineering has performed an evaluation of the door closure problem and has provided recommendations which are pending review by the Site Operations Review Committee.
Sincerely, Mb M
Thomas E. Lempges Vice-President Nuclear Generation TEL/asg cc: Document Control Desk
/
Page NMP-21323 Measures to maintain compliance with Section 3.6.10.1 of Plant Technical Specifications have been implemented.
Engineering has performed an evaluation of the door closure problem and has provided recommendations which are pending review by the Site Operations Review Committee.
Sincerely, aL b gM Thomas E. Lempges Vice President Nuclear Generation TEL/asg cc:
Document Control Desk l
l l
l l
l 4
S RECEIVED-REG 10tl 1 1985 0CT 20 P;I 2: 24 I
.