ML20086L123

Telecopy AO 73-29:on 731224,RCIC Turbine Tripped Three Times for Unknown Reasons.Caused by Improper Adjustment of Mechanical Linkage in Overspeed Mechanism.Reactor Will Remain Depressurized Until Trip Problem Resolved

ML20086L123
Person / Time
Site:	Peach Bottom
Issue date:	12/24/1973
From:	Ullrich W PECO ENERGY CO., (FORMERLY PHILADELPHIA ELECTRIC
To:	James O'Reilly NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION I)
Shared Package
ML20086L121	List: ML20086L118 ML20086L123
References
AO-73-29, NUDOCS 8402070405
Download: ML20086L123 (2)

Text

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/ K o2 A 3 kir. James P O'Reilly, Director United Statco Atomic Ibergy Co:::,,icsion f foI Directornto of Regulatory Operatione 6.31 Fark I. venue h7]$ ~ '

King of Pruscin, Penneylvhnik 19406 Euhicet: Abnore.s3_ Occurrance 24-Hour Unti riention

. Confir. ing my telephone conversation wi+.h Mr. Paul Uc3 con, A.E.C. Region I Heguistory Office on December 2% 1973 Reference *. I.icense Number DFBdh, kendr:ent Number 1, Technical Specification Paragraph 3 5.D.'l (

On Dcec-ber 24, 1973 Vith the reactor pover at approximtely 3%, the 1C10 turbine wha operated on severkl oceanions to support Teosci injection

'teste. on the ROIC system. During this testinC program the ROIC turbinc =

' tripped three times for unknown reasons. On each occceion the turbine vos r*=et from the control root and rentarted. Initial invoatigation indicaten -

ths.t the mechanical linkage in the overspoed occhnnie:s msy be improperly --

ad. justed. Finn 1 investication and recolution is avaiting nrrival of the rnnuructurer's reprenentative. Following the successful co:pletion of the PCIC vessel injection test program tbc reactor vse shutdown to pernit -

work nasociated with the min turbint generator to proceed. The re.ictor chall ree. sin derire.ncurir.ed until tbs itCIC turbine trip probicm in resolved.

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W. 't. U.tirich, Superintendent -

Peach Botton Atomic Power ttation.

8402070405 740102 PDR ADOCK 05000277 '

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MEMO ROUTE SLIP 5*****="N*. cec ="* ace- 'a *"ia-f orm AIC-94 I Rev. kf av I4,1947) AI Ol 0240 N ote saa retura For lgastu re. For lafore etten, To (nam.ano vait3 i= riats atuaans R0 Chief, FS&EB PillIADELPilIA ELECTRIC COMPANY RO:llQ (5)

RO Files o,,, PEACil BOITOM 2 Central Mail & Files Regulatory Standards ni A0 73-29 TO (Name and waits imTia s m'=^ans Directorate of The above abnormal occurrence is forwarded for Licensing (13) inf rmation. Distribution will be made by this OGC 04T:

Regional Directors (37, 777, jy) office to the PDR, I,ocal PDR, NSIC, DTIE, and To,twam. ana waits i= r m.s at=aans State Representatives af ter review by the can licensee for proprietary information.

FROM (Name and wait) atMaans

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