05000327/LER-1981-105-03, /03L-0:on 810822,ice Condenser Intermediate Deck Door in Bay 14 Was Discovered Iced Over.Caused by Water Spilling from Frozen Drain Pan in Air Handling Unit Due to Heater Mat Failure.Heater Mat Replaced & Ice Removed

From kanterella
(Redirected from ML20010H184)
Jump to navigation Jump to search
/03L-0:on 810822,ice Condenser Intermediate Deck Door in Bay 14 Was Discovered Iced Over.Caused by Water Spilling from Frozen Drain Pan in Air Handling Unit Due to Heater Mat Failure.Heater Mat Replaced & Ice Removed
ML20010H184
Person / Time
Site: Sequoyah Tennessee Valley Authority icon.png
Issue date: 09/18/1981
From: Harding M, Kirk G
TENNESSEE VALLEY AUTHORITY
To:
NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION II)
Shared Package
ML20010H183 List:
References
LER-81-105-03L, LER-81-105-3L, NUDOCS 8109240091
Download: ML20010H184 (1)


LER-1981-105, /03L-0:on 810822,ice Condenser Intermediate Deck Door in Bay 14 Was Discovered Iced Over.Caused by Water Spilling from Frozen Drain Pan in Air Handling Unit Due to Heater Mat Failure.Heater Mat Replaced & Ice Removed
Event date:
Report date:
3271981105R03 - NRC Website

text

.

~ '

LICENSEE EVENT REPORT

.C CONinOL etOCK: l l

l l

l l

l@

(PLEASE PRINT On TYPE ALL REQUIRED INFORMAT:GNI I

6 3 lTl Nl S lN lP

@l 0 l0 l-l 0 l 0l 0l 0 l 0 l - l o l 0 l@l 4 l1 l1 II l1 IGL I le 8 9 LsCEN$tt COh le 15 LICEN$t NUYUtet 25 26 LICtNSE TYPE 40 SF CAf Q

ON'T Olil

,"",% 11. l@l o i s 10 lo lo 13 12 17 l@lolaI? I? la li y@ lo 19 11 la i s l i l@

8 60 68 00Citit NuvotH F,8 69 EVENT DAf g 74 76 ptPORT DA't to EVEf47 DESCntPTION AND PROD ABLE CONSEQUENCES h oV l Unit 1 in Mode 1 at 100% RTP.

Ice condenser intermediate deck door in bay 14 l

"IJlI was discovered iced over.

Thin erent reoutrod entry into LCO 3.6.5.3.

There l

014 l I wn c 'n n offnce,m nn ni.h14c hon 1 ek nv enroey ryou4nne nccurronene h (reforonen I

o I5I I enRn-sn-177/Rin71. RinnA. Rinn?_ An?ns An?nt nna An17a)

I o is ] !

l il 21 l I

iT Tl 1 I

O 9 80 Sy s t t '.'

CAUSE

C A USF

COUP, vaw g CODE COCf '

$USCout Con *0NI N T CODE SueCoct SU8CCot j,9 ]

I s i n IO lx_J@ L2tl@ 19 lv in lv Ir in !@ W @,U @

9 10 Il 12 IJ 18 39 20 Stout N TI AL OCCUnRENCE ptPORT R E Vli'ON (VENTvfAR PtPCnl NO.

4cnt TYPE NO.

O "L(ning I si il

[--J liloi5i Ld Ioi3I LI J l--l lo I g.;,a; 25 22 23 24 26 27 7 71 29 30 31 32 ACiteN Futun(

(sFECT snUT OO Ars A TT ACHet NT henD e Pnivi cO M C09PONfNT T AsG'A A C T @J O'dPLANT M(THQO HOUn$

2

$Ut4Ulf t (O FOnM BUS.

$UPPUE R MANU8ACiuntR LiJ@Ld@

l.zJO LaJ@

loIoIoIoI LLl@

is_JO lN l@

lW l1 l2 l0 l JJ J8 JS 36 37 40 4!

42 43 44 47 CAUSE OESCHIPTION AND CORRECitVE ACTIONS ITI I Air hnndline imir cnndong:da drnin nnn honeer mne inflod nnd subsecuent defrost

)

El eveles allowed the drain pan to ice over. During later deftost cycles, water l

El spilled from the frozen drain pan onto the door. The heater mat was replaced gl and the ice removed from the door. The door was returned operable within nine (9) if_J l he ys.

t.

i 80 57Ai

  • n POvvtR oTHEn STA tus is vt

.,15COVERY DE SCRIPTION E LtJ@ l,InInl@l NA l

[gj@[_poobservnrinn i

l ACflVifY CO f f NT nf t.t Att o OF t'E LF AV AMOUNT OF ACilvtf y LOC A f TON OF pit E ASE

[ b h I Zlhl NA l

l NA l

8 9 to it 44 45 PIM50NNE L t **C5unts 60 NtWn t n TYPt O t SC R'P TION I

Q l o l o l o l@lz l@l NA PCALONNilINJUt f5 Nuv8t n Ot$CniPfroN l

[g][olo101@l NA I

l 8 9 it i;

l L OSS OF On DAM AGE 70 F ACittiv 80

'Y't Dt SCHer flCN E LzJ@l NA l

Ir 9 10 g

OYsCo'P' ion @

Q 1LN hl issut Nnc W W

  • l l

NA l

lllllllllllll 6s..

8109240091 810918 clenn B. Kirk /M. R. Iba rd i n u Phone: (u15) 842-8317 PDR ADOCK 05000327 =

l

- a 1_

.S PDR