ML17252B196

LER 80-017/03L-0 for Dresden Unit 3 Regarding During Refueling Outage, While Conducting Operability Surveillance Test, U-3 Diesel Generator Failed to Start

ML17252B196
Person / Time
Site:	Dresden
Issue date:	04/29/1980
From:	Stephenson B B Commonwealth Edison Co
To:	Keppler J G NRC/RGN-III
References
BBS LTR #80-349 LER 80-017/03L-0
Download: ML17252B196 (2)

Text

. ,/ .. r..;_,* . ......... e I" Commonwe. Edison Dresden Nuclear Power Station R.R. #1 Morris, Illinois 60450 Telephone 815/942-2920 -DsE April 29, 1980 ---------. ------*---------------------------------------BBS LTR #80-349 James G. Keppler, Regional Director Directorate of Regulatory -Region III U.S. Nuclear Regulatory Connnission 799 Roosevelt Road Glen Ellyn, IL 60137 Reportable Occurrence Report l/80-17/03L-0, Docket 1/050-249 is being submitted to your office in accordance with Dresden Nuclear Power Station Technical Specification 6.6.B.2. (b), .. :.: .::* ... ::' .. * ... ..; conditions leading to operation in a degraded mode permitted by a limiting condition for operation or plant shutdown required by a limiting condition for operation. BBS:lcg Enclosure 0 Superintendent Dresden Nuclear Power Station cc: Director .of Inspection &*Enforcement Director of Management Information & Program Control File/NRC --J.-----* -MAY s-1980 *

. LICENSEE EVENT REPORT A-EQUIRED INFORMATION)* lo-lo*ro lo!"'" IC>'lol(Vl-411' r.l1l1181 I. t(D 8. 9. . . LICENSE!: CODE. . . 14-.15 . .

• LIC!:NSE NUMBER . . 25 *. *26. LICENSE TYPE* JO* ... 57 CAT 58 .. t0ti1 WG)Jo IS Id 10 10.1214 L9 K2)fo"l4 lo 1418 lo l©I o*l 412181'8.j o I@ a**

• 60 61* . . DOCKET*NUMBER * . 68 .. 69 . .EVENT DATE

• 74 75

• RE.PORT DATE 80 ______ :_ ____ ---------------------------------j-)-,-2-,-.. -r*Durfri.g:rerueling outage, .while conducting an operability surveillance test, the U'-3 gm I diesel generator* failed to start. The air start relay did not energize, preventing. I

• I the pinion gears from-The-: U

• 2/3. diesel generator was. operable* and capable lLill I of* performing* its. intend'ed

• function* and, -was no. to. the health I . tifil I and safety o_f *the* public. Thi's ev:ent has occurred before.. (R.O 79-52/031-0, dock,et

• tITJ. I 050-237 and* 75-47 /OlT-0 ;. docket *. I fIIIl L.___.;..; __ _;_, __________________ 8 *9. SYSTEM-*CAUSE CAUSE COMP;.

• CODE CODE.' .SUBCOOE . . COMPONENT G:OOE SUBCOOE-r E IEJ@* 1R1E1LIA1 Ytx1e 9. 10 . 11

• 12

• 13 1B 19 . LE R/RO CEVENT YEAR . v REPORT I 8 I 0 I .. . NUM_BER

• _21 _ 22 .. _ SEQUENTIAL.'. REPORT NO.** *1 o I 1 I 1 I 1/1 OCCURRENCE REPORT COO.E. TYPE*. 10111 lEJ 23 24. . 26: 27 28* . 29 30 VALVE suscooE-: . lLl@) 20 REVISION** NO. l=J*. l__Q_J 31. -. 32 PRiME COMP;' COMPONENT ACTION,. FUTURE, .' EFFECT . SHUTDOWN .' . * ;..TTACHMENT NPR0-4 TAKEN ACTION ON PLANT METHQD ... * . . *HOURS- SUBMl.TTED F0RM ::iUB,* * . Al_U@ILJ@J. *. LJJ@. *. 1-*d@ . lo I-o I o I o F W@ *. W@ SUPPL! ER" MANUFACTU.RER* .... .. 33 -34 . .* 35-. .* 36. 37 . . . 40 41 . 42 . . l1J@*_. I: zt 91 *9 I 9:1@. * .. _cAuse:oESCRIPTION:ANOCORRECTIVE'ACTIONS:@':* :*'. 43 44. 47.-* z:m I TD4 (Multiple start relay) malfi.mcti*oned. The screw that holds. the coil to the body of I" mJ (the telay was loose,* preventing the relay contacts from. closing properly .. The* TD4 re..:. lJJJ .. 11ay was replac'ed, and the U-3 diesel generator was demonstrated .to-be operab1e. * .. No !:III I further action. deemed necessary ... !ELL-_ __..;_..;__..;__ _________ ..;__ _______ _;.... ___________ __... I . a. 9 00. Fi>.CILI TY l3Q\ METHOD OF . STATUS % POWER OTHER STATUS' \::::J DISC.OVERY DISCOVERY DESCRIPTlON* Dil l!J@* J *o I 0 I 0 l@L-1 _.__....:N:..:J/....::A.:-___ ___. . W@1...l ___ ______ ---' 8 9 I 0 12 1'.I 44 45 . 46 80 ACTIVITY CONTENT (.;"d\ RELEASED OF RELEASE . AMOUNT OF ACTIVITY LOCATION OF REL!:ASE DIL w @: LI.JG I-[ _. ______ __.I.', . 8 .9. 10.. 11 44* 45. . . PERSONNEL EXPOSURES . Cn\ . NUMBER A TYPE . DESCRIPTION ... jo to 80 8 9 11 12 13 80 PERSONNEL INJURIES f,;"'.;\ . . . NUMBER

• DESCRIPT10N6 I 0 I 0 I 0 l@L __ OSS OF DR FACILITY i'4J' . SO TYPE DESCRIPTION . '.::::.; MAY * . N/A 5 ... IS!M 8. 9* 10 . ""' 80 PUBLICITY @. NRC USE ONLY 45 "' g 3 10 . 68 69 EO*; 0 0 "' Sam Bader OF PREP.A.REA-------------------.. ... ... PHONE