05000346/LER-1978-107-03, /03L-1 on 781031:during Diesel Generator Monthly Test,Room Temp Rose to 110 F & Outside Air Damper Would Not Open.Caused by Damper Linkage Being Out of Adjustment & Bound in Guide

/03L-1 on 781031:during Diesel Generator Monthly Test,Room Temp Rose to 110 F & Outside Air Damper Would Not Open.Caused by Damper Linkage Being Out of Adjustment & Bound in Guide

ML19289D335
Person / Time
Site:	Davis Besse
Issue date:	11/27/1978
From:	Hartigan J TOLEDO EDISON CO.
To:	James Keppler NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION III)
Shared Package
ML19289D331	List: 05000346/LER-1978-066-99, /99X-1:on 780429,during Operation at 20% Power, RCS Pressure Dropped to Approx 1620 Psig & Safety Features Actuation Sys Channels 1 & 3 Tripped on RCS Low Pressure, Initiating Incident Levels 1 & 2 05000346/LER-1978-083-03, /03L-1 on 780720:containment vessel-to-annulus Differential Pressure Exceeded Tech Spec Limit by 1 Inch. Purge of Containment Bldg Commenced.Caused by Inadequate Monitoring of Pressure Increase by Shift Check 05000346/LER-1978-107-03, /03L-1 on 781031:during Diesel Generator Monthly Test,Room Temp Rose to 110 F & Outside Air Damper Would Not Open.Caused by Damper Linkage Being Out of Adjustment & Bound in Guide ML19289D330
References
LER-78-107-03L, LER-78-107-3L, NUDOCS 7903050344
Download: ML19289D335 (1)

LER-1978-107, /03L-1 on 781031:during Diesel Generator Monthly Test,Room Temp Rose to 110 F & Outside Air Damper Would Not Open.Caused by Damper Linkage Being Out of Adjustment & Bound in Guide

Event date:
Report date:
3461978107R03 - NRC Website

text

U. S. NUCLEAR REGULATORY COMMISSION RC FORM 7 77)

LICENSEE EVENT REPORT

, CONTROL DLOCK: l l

l l

l l

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25 26 LICE *.5E TY PE JJ 57 LATbd jo 3

LICENSE NUMuER 7

8 9 LICENSEE CODE 14 15 l L @l Ol S l 0] -l 0 l 3 l 4 l 6 j@ll 10 13 11 l7 l8 l@l1 l1 l2 l7 l7 l3 l@

CON'T l

enc 74 75 REPORT OATE 80 o

i 6a 63 EVENT DATE 00 61 OOCKET NU*.tBER 7

8 EVENT DESCRIPTION AND PROOABLE CONSEQUENCES h5081.01, " Diesel Gene Fo 12] l During the conduct of ST DG 1-2 was l

The outside air damper would not open.

l o l 3 l l room temperature rose to 1100F.

10/31/78. This placed the unit in the Action j

[oj4l l declared inoperable at 2045 hours0.0237 days <br />0.568 hours <br />0.00338 weeks <br />7.781225e-4 months <br /> on DG l-1 was operable and would have j

goj,,g gStatement of Technical Specification 3.8.1.1.

DG 1-2 would start and would have continuedj l o 16 l l been available if of f site power was lost.

(NP-33-78-125) l-l to function for an undetermined amount of time.

o 7 1

'O 101811 COMP.

VALVE 7

8 3 SYSTEM

CAUSE

CAUSE CODE CODE SUBCODE COMPONENT CODE SUBCODE SU8 CODE lQ l El El @ W @ W @ l Vl Al Ll V 0l Pl@

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18 19 20 8

9 to 11 12 1J REVISION OCCURRENCE REPORT SMU ENTI AL COOE TYPE No.

REPORT NO.

@ RE l7l8l l1[0 7l l, -l l0 l3 l [L l l_l l 1l EVENT YEAR LE R/RO

_ 21 22 23 24 26 21 28 23 30 31 32 AKEN ACT Or o4 PLANT tET HOURS 22 S B IT FOR b B.

5 PLI MA FA T RER LBjgLzjg LZ jg l36Z@ l0l0l0l l

[ljg lN lg Alg lI l2 l0 l6 lg 33 34 35 _

34 40 41 43 44 47 CAUSE DESCRIPTION AND CORRECTIVE ACTIONS h The j l i l 0 l l It was discovered the damper linkage was out of adjustment and bound in a guid The damper was stroked six times.

I g linkage was disassembled and readjusted.

i i 2345 hours0.0271 days <br />0.651 hours <br />0.00388 weeks <br />8.922725e-4 months <br /> on j l ST 5081.01 was completed, and Diesel Generator 1-2 declared operable at "of Technical Speci-j gij3gl October 31, 1978. This rcmoved the unit from the Action Statement l

lfication 3.8.1.1.

4 7

8 9 DISCeVERY DESCRIPTION oTHER ST ATUS ISCOV Y 5031.01 j

0'. POWER 1013 l@l NA l

{ gl Surveillance Test ST ST S

ITTsl U@ 1 A TlVITY CO TENT LOCATION OF RELE ASE RELE ASED OF HELE ASE AMOUNT oF ACTIVtTY l

l NA l

l NA 83 1 6 44 45 7

8 9 to 11 PERSONNEL EXPOSURES NUVBER TYPE DESCRIPTION --

I 10 10 10 l@lzl@lNA i 7 nRSONNEL iN;u' RIES oESCniPTiOs@

l

~UvuR 101010 l@l NA 80 i a 9

11 12 7

8 LoS$ OF oR OAMAGE TO FACILITY h l

TYPE DE SC RIP TION v

Lz J@l "^

E,0 i o 7

8 9 10 l

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ISSUE [@UEsCnPfiON@

790305024'y lN l NA 6R 69 49 7.

2 o 419-259-5000, Ext. 253 E 7

8 9 to John P. Hartigan pggyg DVR 78-161

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