ML20206A076: Difference between revisions

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Trojan Nuclear Plant 71760 Columbia River liwy Rainier, Oregon 97048 (503)556-?713 U     L. Nuclear Regulatory Commission Document Control Desk Washington, DC 20555 Gentlemen:
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Soecial Report Limiting Condition for Operation (LCO) 3.7.9 of the Trojan Technical Specification requires submittal of a special report if a 3-hour fire barrier is nonfunctional for greater than seven days.       Fire barriers in the areas described below were declared inoperable on the dates indicated and remained inoperable for greater than seven days.
Portland General Electric Company
: 1. Door #64, Control Building 77' entrance to the cable spreading room was declared inoperable on 10/04/88 due to a greater than 3/16" gap between the door edge and the frame.
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Trojan Nuclear Plant 71760 Columbia River liwy Rainier, Oregon 97048 (503)556-?713 U
L.
Nuclear Regulatory Commission Document Control Desk Washington, DC 20555 Gentlemen:
Soecial Report Limiting Condition for Operation (LCO) 3.7.9 of the Trojan Technical Specification requires submittal of a special report if a 3-hour fire barrier is nonfunctional for greater than seven days.
Fire barriers in the areas described below were declared inoperable on the dates indicated and remained inoperable for greater than seven days.
1.
Door #64, Control Building 77' entrance to the cable spreading room was declared inoperable on 10/04/88 due to a greater than 3/16" gap between the door edge and the frame.
Repairs were completed on 11/03/88.
Repairs were completed on 11/03/88.
: 2. Door #186, Auxiliary Building 61' entrance to respirator maintenance facility was declared inoperablo on 10/07/88 due to a sticking latch mechanism and a latch throw of less than 11/16". Replacement of latch mechanism is expected to be completed by 11/08/88.
2.
: 3. Door #359, Auxiliary Building 77' entrance to the valve gallery was declared inoperable on 10/03/88 due to a larger
Door #186, Auxiliary Building 61' entrance to respirator maintenance facility was declared inoperablo on 10/07/88 due to a sticking latch mechanism and a latch throw of less than 11/16".
;                                            than 3/16" gap between the door edge and the frame. Repairs i                                             were completod on 11/02/83.
Replacement of latch mechanism is expected to be completed by 11/08/88.
: 4. Door #109, Turbine Building 45' East Emergency Diesel Generator room entrance was declared inoperable on 09/30/88 due to holes in the outer sheetmotal skin. This door is under evaluation to correct the problem. Repairs are l                                           oxpected to be complete by 12/30/88.
3.
: 5. Door #129, Turbino Building 45' Diesel Auxiliary Feedwater Pump entrance was declared inoperable on 10/06/88 duo to a missing latch cover plato. Ropairs were completed on 10/31/88.
Door #359, Auxiliary Building 77' entrance to the valve gallery was declared inoperable on 10/03/88 due to a larger than 3/16" gap between the door edge and the frame.
: 6. Door #103, Turbino Building 45' Turbino Auxiliary   Foodwater Pump ontrance was declared inoperable on 10/06/88   due to a hole in the frame. This door is under ovaluation     to correct the problom. Ropairs are expected to be complete     by 12/30/88.
Repairs i
JZ GG11140410 881104                                                 I I PDR     ACOCK 05000344 g                   PDC                                             1
were completod on 11/02/83.
4.
Door #109, Turbine Building 45' East Emergency Diesel Generator room entrance was declared inoperable on 09/30/88 due to holes in the outer sheetmotal skin.
This door is under evaluation to correct the problem.
Repairs are l
oxpected to be complete by 12/30/88.
5.
Door #129, Turbino Building 45' Diesel Auxiliary Feedwater Pump entrance was declared inoperable on 10/06/88 duo to a missing latch cover plato.
Ropairs were completed on 10/31/88.
6.
Door #103, Turbino Building 45' Turbino Auxiliary Foodwater Pump ontrance was declared inoperable on 10/06/88 due to a hole in the frame.
This door is under ovaluation to correct the problom.
Ropairs are expected to be complete by 12/30/88.
JZ GG11140410 881104 I I PDR ACOCK 05000344 g
PDC 1


T     CAO-359-88 Page Two
T CAO-359-88 Page Two 7.
: 7. Door #104, Turbine Building 45' elevation in the wall dividing the East and West Emergency Diesel Generator rooms was declared inoperable on 10/03/88 due to a latch throw of less than 11/16" and a hinge misalignment causing rubbing of the door against the frame. Replacement of latch and hinges was completed 10/24/88.
Door #104, Turbine Building 45' elevation in the wall dividing the East and West Emergency Diesel Generator rooms was declared inoperable on 10/03/88 due to a latch throw of less than 11/16" and a hinge misalignment causing rubbing of the door against the frame.
: 8. Door #112, Turbine Building 45' elevation in the wall dividing the East and West Emergency Diesel benerator rooms was declared inoperable on 09/30/88 due to holes in the sheetmetal skin. Repairs were completed 10/24/88.
Replacement of latch and hinges was completed 10/24/88.
: 9. Door #126, Turbine Building 45' East wall was declared inoperable on 10/06/88 due to loose hinges and an excessive gap greater than 3/16" between the door and the frame. A Nonconformance Report (NCR) has been issued to replace the door and frame. Completion expected by 12/15/88.
8.
: 10. Door #131, Turbine Building 61' access to the Control Building was declared inoperable on 1C/07/88 due to an excessive gap of greater than 3/16" between the door and the frame. Repairs were completed on 11/03/88.
Door #112, Turbine Building 45' elevation in the wall dividing the East and West Emergency Diesel benerator rooms was declared inoperable on 09/30/88 due to holes in the sheetmetal skin.
: 11. Door #133, Turbine Building 69' entrance to "A" Switchgear Room was declared inoperable on 10/07/88 due to an excessive gap of greater than 3/16" between the door and the frame. Repairs were completed on 11/03/88.
Repairs were completed 10/24/88.
: 12. Door #134, Turbine Building 69' entrance to "A" Switchgear Room was declared inoperable on 10-07-88 due to an excessive gap of greater than 3/16" between the door and the frame. Repairs were completed on 11/03/88.
9.
113. Door #113, Turbine Building 45' West exterior, was declared inoperable on 10/06/88 due to excessive gaps and inconsistent closing. Due to its overall condition, a Nonconformance Report has been written to change out the door. Repairs are expected to be completed by 12/15/88.
Door #126, Turbine Building 45' East wall was declared inoperable on 10/06/88 due to loose hinges and an excessive gap greater than 3/16" between the door and the frame.
The ir. operable doors noted above were identified as a result of a semiannual inspection of fire barriers. The majority of these doors function appropriately but do not meet the requirements of the National Fire Protection codes and Trojan's guidelines due to excessive gaps, insufficient latch throws, etc.
A Nonconformance Report (NCR) has been issued to replace the door and frame.
Completion expected by 12/15/88.
10.
Door #131, Turbine Building 61' access to the Control Building was declared inoperable on 1C/07/88 due to an excessive gap of greater than 3/16" between the door and the frame.
Repairs were completed on 11/03/88.
11.
Door #133, Turbine Building 69' entrance to "A" Switchgear Room was declared inoperable on 10/07/88 due to an excessive gap of greater than 3/16" between the door and the frame.
Repairs were completed on 11/03/88.
12.
Door #134, Turbine Building 69' entrance to "A" Switchgear Room was declared inoperable on 10-07-88 due to an excessive gap of greater than 3/16" between the door and the frame.
Repairs were completed on 11/03/88.
113.
Door #113, Turbine Building 45' West exterior, was declared inoperable on 10/06/88 due to excessive gaps and inconsistent closing.
Due to its overall condition, a Nonconformance Report has been written to change out the door.
Repairs are expected to be completed by 12/15/88.
The ir. operable doors noted above were identified as a result of a semiannual inspection of fire barriers.
The majority of these doors function appropriately but do not meet the requirements of the National Fire Protection codes and Trojan's guidelines due to excessive gaps, insufficient latch throws, etc.


f                                                                             t
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      ,    CAO-359-88 Page Three i
CAO-359-88 Page Three i
The cause of the large number of doors being inoperable at one time is that all of the doors are being inspected once every six months during approximately a one-week period. This leads to a 3arge number of doors needing to be repaired following each inspection. As a result, it takes too long to accomplish the repairs. In addition, too low a priority has been assigned to the repair of fire doors. The high failure rate is a consequence ;
The cause of the large number of doors being inoperable at one time is that all of the doors are being inspected once every six months during approximately a one-week period.
of the lengthy period between inspections for certain of the doors.
This leads to a 3arge number of doors needing to be repaired following each inspection.
As a result, it takes too long to accomplish the repairs.
In addition, too low a priority has been assigned to the repair of fire doors.
The high failure rate is a consequence of the lengthy period between inspections for certain of the doors.
Corrective actions will consist of:
Corrective actions will consist of:
Because of the large number of fire doors that were found to be inoperable in this inspection, we intend to switch to a monthly, staggered inspection in place of the six-month inspection schedule now used.                               ,
Because of the large number of fire doors that were found to be inoperable in this inspection, we intend to switch to a monthly, staggered inspection in place of the six-month inspection schedule now used.
Additional quarterly maintenance will be conducted on doors which exhibit a high failure rate.
Additional quarterly maintenance will be conducted on doors which exhibit a high failure rate.
Finally, a higher priority will be assigned to the repair of inoperable safety related fire doors in the future, with a goal of one week to accomplish any needed repairs.
Finally, a higher priority will be assigned to the repair of inoperable safety related fire doors in the future, with a goal of one week to accomplish any needed repairs.
The compensatory measures of Trojan Technical Specification 3.7.9 (checking smoke detectors and establishing an hourly fire patrol) ,
The compensatory measures of Trojan Technical Specification 3.7.9 (checking smoke detectors and establishing an hourly fire patrol) were established as required.
were established as required.
Sincerely, C. A. Olmstead General Manager Trojan Nuclear Plant i
Sincerely,               ,
CAO/RPS/DWS/ WL/
C. A. Olmstead General Manager         .
B:sg c: Mr. Bill Dixon State of Oregon Department of Energy Mr. John B.
Trojan Nuclear Plant     i CAO/RPS/DWS/ WL/   B:sg c: Mr. Bill Dixon State of Oregon Department of Energy Mr. John B. Martin Regional Administrator Nuclear Regulatory Commission Mr. R. C. Barr USNRC Resident Inspector Trojan Nuclear Plant Distribution}}
Martin Regional Administrator Nuclear Regulatory Commission Mr. R.
C.
Barr USNRC Resident Inspector Trojan Nuclear Plant Distribution}}

Latest revision as of 02:38, 7 December 2024

Special Rept Re Fire Barriers Remaining Inoperable for Greater than Seven Days in Listed Areas.Caused by Doors Being Inspected Once Every Six Months Leading to Large Number of Doors Needing Repair.Insp Switched to Monthly
ML20206A076
Person / Time
Site: Trojan File:Portland General Electric icon.png
Issue date: 11/04/1988
From: Olmstead C
PORTLAND GENERAL ELECTRIC CO.
To:
NRC OFFICE OF ADMINISTRATION & RESOURCES MANAGEMENT (ARM)
References
CAO-359-88, NUDOCS 8811140410
Download: ML20206A076 (3)
v • d • e


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Portland General Electric Company

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Trojan Nuclear Plant 71760 Columbia River liwy Rainier, Oregon 97048 (503)556-?713 U

L.

Nuclear Regulatory Commission Document Control Desk Washington, DC 20555 Gentlemen:

Soecial Report Limiting Condition for Operation (LCO) 3.7.9 of the Trojan Technical Specification requires submittal of a special report if a 3-hour fire barrier is nonfunctional for greater than seven days.

Fire barriers in the areas described below were declared inoperable on the dates indicated and remained inoperable for greater than seven days.

1.

Door #64, Control Building 77' entrance to the cable spreading room was declared inoperable on 10/04/88 due to a greater than 3/16" gap between the door edge and the frame.

Repairs were completed on 11/03/88.

2.

Door #186, Auxiliary Building 61' entrance to respirator maintenance facility was declared inoperablo on 10/07/88 due to a sticking latch mechanism and a latch throw of less than 11/16".

Replacement of latch mechanism is expected to be completed by 11/08/88.

3.

Door #359, Auxiliary Building 77' entrance to the valve gallery was declared inoperable on 10/03/88 due to a larger than 3/16" gap between the door edge and the frame.

Repairs i

were completod on 11/02/83.

4.

Door #109, Turbine Building 45' East Emergency Diesel Generator room entrance was declared inoperable on 09/30/88 due to holes in the outer sheetmotal skin.

This door is under evaluation to correct the problem.

Repairs are l

oxpected to be complete by 12/30/88.

5.

Door #129, Turbino Building 45' Diesel Auxiliary Feedwater Pump entrance was declared inoperable on 10/06/88 duo to a missing latch cover plato.

Ropairs were completed on 10/31/88.

6.

Door #103, Turbino Building 45' Turbino Auxiliary Foodwater Pump ontrance was declared inoperable on 10/06/88 due to a hole in the frame.

This door is under ovaluation to correct the problom.

Ropairs are expected to be complete by 12/30/88.

JZ GG11140410 881104 I I PDR ACOCK 05000344 g

PDC 1

T CAO-359-88 Page Two 7.

Door #104, Turbine Building 45' elevation in the wall dividing the East and West Emergency Diesel Generator rooms was declared inoperable on 10/03/88 due to a latch throw of less than 11/16" and a hinge misalignment causing rubbing of the door against the frame.

Replacement of latch and hinges was completed 10/24/88.

8.

Door #112, Turbine Building 45' elevation in the wall dividing the East and West Emergency Diesel benerator rooms was declared inoperable on 09/30/88 due to holes in the sheetmetal skin.

Repairs were completed 10/24/88.

9.

Door #126, Turbine Building 45' East wall was declared inoperable on 10/06/88 due to loose hinges and an excessive gap greater than 3/16" between the door and the frame.

A Nonconformance Report (NCR) has been issued to replace the door and frame.

Completion expected by 12/15/88.

10.

Door #131, Turbine Building 61' access to the Control Building was declared inoperable on 1C/07/88 due to an excessive gap of greater than 3/16" between the door and the frame.

Repairs were completed on 11/03/88.

11.

Door #133, Turbine Building 69' entrance to "A" Switchgear Room was declared inoperable on 10/07/88 due to an excessive gap of greater than 3/16" between the door and the frame.

Repairs were completed on 11/03/88.

12.

Door #134, Turbine Building 69' entrance to "A" Switchgear Room was declared inoperable on 10-07-88 due to an excessive gap of greater than 3/16" between the door and the frame.

Repairs were completed on 11/03/88.

113.

Door #113, Turbine Building 45' West exterior, was declared inoperable on 10/06/88 due to excessive gaps and inconsistent closing.

Due to its overall condition, a Nonconformance Report has been written to change out the door.

Repairs are expected to be completed by 12/15/88.

The ir. operable doors noted above were identified as a result of a semiannual inspection of fire barriers.

The majority of these doors function appropriately but do not meet the requirements of the National Fire Protection codes and Trojan's guidelines due to excessive gaps, insufficient latch throws, etc.

t f

CAO-359-88 Page Three i

The cause of the large number of doors being inoperable at one time is that all of the doors are being inspected once every six months during approximately a one-week period.

This leads to a 3arge number of doors needing to be repaired following each inspection.

As a result, it takes too long to accomplish the repairs.

In addition, too low a priority has been assigned to the repair of fire doors.

The high failure rate is a consequence of the lengthy period between inspections for certain of the doors.

Corrective actions will consist of:

Because of the large number of fire doors that were found to be inoperable in this inspection, we intend to switch to a monthly, staggered inspection in place of the six-month inspection schedule now used.

Additional quarterly maintenance will be conducted on doors which exhibit a high failure rate.

Finally, a higher priority will be assigned to the repair of inoperable safety related fire doors in the future, with a goal of one week to accomplish any needed repairs.

The compensatory measures of Trojan Technical Specification 3.7.9 (checking smoke detectors and establishing an hourly fire patrol) were established as required.

Sincerely, C. A. Olmstead General Manager Trojan Nuclear Plant i

CAO/RPS/DWS/ WL/

B:sg c: Mr. Bill Dixon State of Oregon Department of Energy Mr. John B.

Martin Regional Administrator Nuclear Regulatory Commission Mr. R.

C.

Barr USNRC Resident Inspector Trojan Nuclear Plant Distribution

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