ML18046A560
| ML18046A560 | |
| Person / Time | |
|---|---|
| Site: | Palisades  |
| Issue date: | 03/30/1981 |
| From: | Hoffman D CONSUMERS ENERGY CO. (FORMERLY CONSUMERS POWER CO.) |
| To: | James Keppler NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION III) |
| References | |
| IEB-79-18, NUDOCS 8104090443 | |
| Download: ML18046A560 (4) | |
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consumern Power company General Offices: 212 West Michigan Avenue, J*ckson, Michigan 451201 * (517) 788-0550 March 30, 1981 Mr James G Keppl~r Office of Inspection and Enforcement Region III US Nuclear Regulatory Commission 799 Roosevelt Road Glen Ellyn, IL 60137 DOCKET 50-255 - LICENSE DPR PALISADES PLANT -
RESPONSE TO IE BULLETIN 79 AUDIBILITY PROBLEMS ENCOUNTERED ON EVACUATION OF PERSONNEL FROM HIGH-NOISE AREAS IE Bulletin 79-18, Audibility Problems Encountered on Evacuation of Personnel From High-Noise Areas dated August 7, 1979 required Consumers Power Company to "determine whether current alarm systems and evacuation announcement systems are clearly audible or visible throughout all plant areas."
The report on our findings, as well as intended corrective action, is as follows:
In June 1980 a survey was conducted which identified several inoperable devices rendering the survey useless for the purposes of IE Bulletin 78-18.
Several areas were found to be deficient and were repaired.
On January 12, 1981 and January 13, 1981, a second survey was conducted to determine the effectiveness of the evacuation siren and PA systems.
Deficiencies noted during the second test are listed as Attachment A.
All maintenance orders and facility changes will. be issued by July 1, 1981.
Final completion dates to correct these problems as yet have not been determined.
As a result of the surveys conducted, problems identified and work done to date, we consider the responding portion of this bulletin to be completed.
David P Hoffman Nuclear Licensing Administrator CC Director, Office of Nuclear Reactor Regulation Director, Office of Inspection and Enforcement NRC Resident Inspector-Palisades Attachment 1 Page iAPR
~ 1981
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ATTACHMENT A Turbine Building Siren & PA inaudible in stairway to condensate pit, inside the condensate pit.
Siren & PA inaudible inside and outside aux feedwater pump.
Siren & PA inaudible in emergency diesel generator room.
Outside Area Siren on top of turbine building not operating (west side).
CT pump house siren inaudible, PA not understandable.
Temporary buildings north of plant, siren barely audible, no PA.
Both cooling towers, no sirens or PA audible.
Training building, no PA, siren very weak.
Radwaste storage building, siren & PA inaudible.
New radwaste storage, siren & PA inaudible.
Security building, no PA, no sirens audible.
Auxiliary Building Health Physics (old Document Control.), no PA, siren very weak.
Boric acid storage tank room, pumps on - no siren, no PA; pumps off -.weak siren, no PA.
The following areas had no PA or sirens audible:
Room 115 - fuel pool heat exchange.
Room 167 - component cooling, PA only partially audible.
Room 106A - waste gas plenum 602 - pipe lay, north and south.
Room 120 - vacuum degasification pump room.
Recirc pump room, receiver tank.
Charging pumps, siren barely audible.
PMW recirc pump room, siren barely audible.
Room 714 - misc was~e holdup tank.
Service Building Low-level counting lab, no siren;* no PA.
nu0381-042la-43
General Offices: 212 West Michigan Avenue, Jackson, Michigan 49201 * (517) 788-0550
.March 27, 1981
- rtir James G Keppler Office of Inspection and Enforcement Region_ III U S Nuclear Regulatory Commission 799 Roosevelt Road Glen Ellyn, IL 60127 DOCKET 50-255 - LICENSE DPR PALISADES PLANT - LICENSEE EVENT REPORT 81-011 - DIESEL GENERATOR MICROSWITCH FAILURE On the reverse side is LER 81-011 which is reportable under Technical Specifications 6.9.2.B(2).
David P Hoffman Nuclear Licensing Administrator CC Director, Office of Nuclear Reactor Regulation Director, Office of Inspection and Enforcement NRC Resident Inspector-Palisades Plant MAR 3 0 t981
PALISADES PU.lIT NRC FORM 366 (7*77)
U.S. NUCLEAR REGULATORY COMMISSION LICENSEE EVENT REPORT CONTROL BLOCK: l-1 _..___.__.__......__..__,I G) 1 6
(PLEASE PRINT OR TYPE ALL REQUIRED INFORMATION)
[ill] IMI II PIA! LI JJG)I old -lo lol olo I ol-lol olG)l 41111111 JJ©I I 10 7
B 9
LICENSEE CODE 14
~5 LICENSE NUMBER 25 26 LICENSE TYPE 30 57 CAT 58 CON'T
[TIIJ 7
8
- ~~~~~ L.1..J©I o I 5 I o Io I o I 21 5 15 IG)lo I 3 I o I 418 11 l©I o I 312 I 7 I 8 I 110 60 61 DOCKET NUMBER 68 69 EVENT CATE 74 75 REPORT.DATE BO EVENT DESCRIPTION ANO PROBABLE CONSEQUENCES@
IT:TIJ I Followin~ cyJ inder lea.k testj D14" which was performed dnrin14" routine surveillance of diesel generators, the 1-1 D/G. overspeed and low air pressure alarms actuated and would not reset.
Alarms were cleared by opening and closing the DC breaker; the overspeed trip was actuated and again alarms came in and would not reset.
Grou.riifault alarm also
~
I actuated.
Broken microswitch was found to be the cause.
The diesel
[)))) 1 generator was returned to service within the time required by TS 3.7.2.i. I 8
9 80
[2TIJ 7
8 SYSTEM CODE IE IE I@
9 10
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LE RiRO c-VENT VEAR
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REPORT 18 I J I NUMBER 21 22 CAUSE CAUSE COMP.
VALVE CODE SUBCOOE COMPONENT CODE SUBCOOE SUBCOOE 1!..J@ uu@ IIINISITIRIUI@ w@ w@
11 12 13 18 19 20 SEQUENTIAL OCCURRENCE REPORT REVISION REPORT NO.
CODE TYPE NO.
I I 1011111 1.rl lol31 W
l.=l 23 24 26 27 28 29 JO 31 LQJ 32 A.:TION FUTURE EFFECT SHUTDOWN r:;::;..
ATTACHMENT NPRD-4 PRIME COMP.
TAKEN ACTION ON PLANT METHOD HOURS ~ SUBMITTED FORM SUB.
SUPPLIER COMPONENT MANUFACTURER LAJ@l.HJ@
1..LI@
Lll Io Io I 01 o I lli.J@
l.1.J@ W@
33 34 35 36 37 40 41 42 43 I Ml 31o12 I@
CAUSE DESCRIPTION ANO CORRECTIVE ACTIONS @
44 47 I Overspeed trip lever is the normal tagging point for diesel engine; improper use of trip lever resulted.in high impact onto micro switch; o::rn o:::m causing it to break.
Micro switch replaced and diesel returned to service.j Operations personnel instructed to actuate lever gradually to relieve cmJ impact on switch.
7 8
9 FACILITY STATUS
% POWER OTHER STATUS @
[ill] LIJ@ I 0 I 9 I 9 l@I..... _N_A ___
8 9
10 12 13 44 ACTIVITY CONTENT
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RELEASED OF RELEASE AMOUNT OF ACTIVITY 8IJ L.z1@) W@.._I __
__....NA...__ ___
7 8
9 10 11 44 PERSONNEL EXPOSURES t.:;::...
BO METHOD OF r:;::;..
DISCOVERY DISCOVERY. DESCRIPTION
~~~l~_I_n_s_e_rv~i-*c_e~I_n_s~p~e_c_t_i_*o_n~_T_e_s_t~~~-1 45 46 80 LOCATION OF RELEASE @
NA 45 80 NUMBcP.
A TYPE t:;;;., DESCRIPTION ITJ2] I 01 o I o 11.1..J..____...N_A_. ______________________
7 8
9 11 12 13 PERSONNEL INJURIES
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NUMBER DESCRIPTION~
IJJI] I 010 10 l@)~-----N_A __________________________________________ ~
8 9
11 12 LOSS O* OR DAMAGE TO FACI LITV t4;j\\
TYPE DESCRIPTION
°.;::;;:J BO 80
[ill] Lzj@
NA 7
8 9
10 PUBLICITY C\\
ISSUED DESCRIPTION~
NRC USE ONLY Ll12J LnJE>..._ ________........, ______________________________ ~ I I I I I I I I I I I I I 80 8
9 10 68 69 80