ML18110A890

LER 77-017-00 for Saint Lucie Unit 1 Regarding Dropped or Misaligned CEA 20 and CEA 23

ML18110A890
Person / Time
Site:	Saint Lucie
Issue date:	04/06/1977
From:	Schmidt A D Florida Power & Light Co
To:	Moseley N C NRC/RGN-II
References
PRN-LI-77-99 LER 77-017-00
Download: ML18110A890 (12)

Text

NRC FoAM 196 U.S.NUCLEAR AEGUL*TOA V COMMISSION DOCKET NUMOE A I2.70)'BC DISTRIBUTION FoR f,.T 50 DOCKET MATERIAL FILE NUMOEA INCIDENT REPORT TO:~~Mr.Norman C.Moseley FROM;Florida Power&Light Companyt Miami, Florida A.D.Schmidt DATE OF DOCUMENT 4/6/77 DATE RECEIVED 4 21 77 QLETTEA Q OA IG INAL Qcopv DESCRIPTION

\Q NOTOR IZE D QUNCLASSIFIED INPUT FOAM ENCLOSURE NUMBER OF COPIES RECEIVED I at~8~I Ltre trans the following:

, (Ig((5, PLANT NAME:~vG,$t,.Lncie Uni.t Nc.1 QgQ gJL I (1-P)Licensee Event Report (RO 50-335/77-17) on 3/7/77 concerning CEA 20 not withdrawing'ecause the Upper Electrical

'Limit reed switch had failed closed, thus prohibiting

('outward CEA.mo ti one~~~(RO 50-335/76-46) on 3/11/77 concernirig the containment escape lock inner door failing e tech spec surveillance

~~.~-.(4-p).,'OTE: IF PERSONNEL EXPOSURE IS INVOLVED SEND DIRECTLY TO KREGER/J, COLLINS BRANCH CHIEF: W 3 CYS FOR ACTION LICo ASST,:>I CXS ACRS (CXS 149b&%HC S NT FOR ACTION/I NFO RiVIAT ION G FILE INTERNAL D IST RI OUT ON I&E(2 MIPC SCHROEDER/IPPOLITO HOUSTON NOVAK/CHECK GRIIKS CASE HANAUER TEDESCO/FIACCARY EISENHUT SHAO VOLLMER/BUNCH KREGER/J~COLLINS LPDR:~1e ee.TIC: N~C.EXTERNAL DISTRIOUTION CONTROL NUMOER 7>ll 4 0/94 NRC FOAM 196{2 70) 0~4~4 tt P.O.BOX 013100, MIAMI, FL 33101 Qlyyz FLORIDA POWER&LIGHT COMPANY April 6, 1977 Mr.Norman C.Moseley, Director, Region II Office of Inspection and Enforcement U.S.Nuclear Regulatory Commission 230 Peachtree Street, N.W., Suite 1217 Atlanta, Georgia 30303

Dear Mr.Moseley:

.PRN-LI-77-99 Aegulatory EQLCfg q REPORTABLE OCCURRENCE 335-77-17~cj~ST.LUCIE UNIT 1 DATE OF OCCURRENCE:

MARCH 7, 1977 CEA 20 6 CEA 23 The attached Licensee Event Report is being submitted in accordance with Technical Specification 6.9 to provide 30-day notification of the subject occurrence.

Very truly yours, D.Schmidt Vice President Power Resources'e MAS/ms Attachment CC Robert Lowenstein, Esquire Director, Office of Inspection and Enforcement (30)Director, Office of Management Information and Program Control (3)r7 jld"b/8 9 PEOPLE...SERVING PEOPLE 1'QI IE ,~

~CONTROL BLOCK: LICENSEE EVENT REPORT fPL~SE PRiNT ALL RECIUIRED INFOAMAT!ON)

LCENSEE BYNAME F L S L S 1 0 0 7 89 14 15 REPORT REPORT CATEGORY TYPE SOURCE I001I coN'T~~L~L 0 7 8 57 58 59 60 61 LICENSE NUMBER 0 0 0 0 0-0 0 UCENSE TYPE EVENT TYPE 411 1 1 I z~03 25 26 30 OOCKET NUMBER EVENT OATE REPORT OATE 5 0-0 3 3 5 0 3 0 7 7 7 0 3 1 5 7 7 68 69 74 75 60 EVENT DESCRIPTION QO 2 Durin surveillance testin , CEA 20 would not withdraw with the rest of Group 2, so 7 89 80[QQ4]Shutdown margin was veri f ied, power was reduced to 70 percent, and while the rest of 7 8 9 80 Qp 5 the group was being aligned to CEA 20, CEA 23 dropped.CEA 23 was recovered in 34 60 The o erabilit 7 8 9 QOQ minu tes thereb sa t is f in ac tion a m I I I I f 7 8 9 BO I action was taken in accordance with action statement"d" of Specification 3.1.3.1.89 SYSTEM CAUSE COOE COOE COtiIPONENT COOE~0>~RB~B 0 K T B R K 7 8 9 10 11 12 17 CAUSE DESCRIPTION tOOBj CEA 20 would not withdraw because PAVE COMPO I I ENT SUPPLER COMPO BJ ENT MANUF~i'FER C 4 9 0 N 47 48 the Upper Electrical Limit (UEL)reed switch had 80 7 8 9 80 Q~I failed closed, thus prohibiting outward CEA motion.The failed reed switch was taken 7 8 9 60 of the circuit and the s are UEL reed switches were verified to be in service.OTHER STATUS NA 7 8 9 LOSS OR DAMAGE TO FACILITY TYPE OESCRIPTION l91 LzJ 7 89 10 PUBLICITY 7 89 7 89 , FACILIIY STATUS'%OWER@~~]~B~OB 0 7 8 9 10 12 13 FORM OF AcnVITY COATENT RELEASED OF RELEASE AMOUNT OF ACnVITY KIH NA 7 8 9 10 11 PERSONNEL EXPOSURES NUMSER TYPE OESCRIPTION

~io~oo o'~z 7 8 9 11 12 13 PERSONNEL INJURIES NUMBER CESCRIPTIOtJ PP+0 0 7 8 9 11 12 PROBABLE CONSEQUENCES Qg METHOO OF OISCOVERY 44 45 44 45 NA NA NA NA 80 OISCOVERY OESCRIPTION NA cO LOCATION OF RELEASE NA 60 80 ao 80 60.BO ADDITIONAL FACTORS Qg See a e two for continuation of Event Description and Cause Description.

7 89 7 89 M: A.Scho man PHONEI 305 552-3802 COO 65 I~II 0T 4~V~M ,'7i Reportable Occurrence 335-77-17 Licensee Event Report Pa e Two Event Descri tion (continued) of CEA 20 was then restored and power was increased to 100 percent.CEA 20 had been declared inoperable for 43.minutes.This was the fourth occurrence of dropped or misaligned CEA's (335-76-25, 335-76-37, and 335-77-6)but was unrelated to the previous occurrences.

(335-77-17)

Cause Descri tion continued CEA 23 dropped due to a 240 VAC circuit breaker tripping.The system was determined not to have any other problems.The circuit breaker was closed and CEA 23 operated correctly.

~r"x l<

FLORIDA POWER&LIGHT COMPANY April 8, 1977 PRN-LI-77-102 Mr.Norman C.Moseley, Director, Region II Office of Inspection and Enforcement U.S.Nuclear Regulatory Commission 230 Peachtree Street, N.W., Suite 1217 Atlanta, Georgia 30303

Dear Mr.Moseley:

REPORTABLE OCCURRENCE 335-77-18 ST.LUCIE UNIT 1 DATE OF OCCURRENCE:

March ll, 1977 CONTAXNMENT AIR LOCK The attached Licensee Event Report is being submitted in accordance with Technical Specification 6..9 to provide 30-day notification of the subject occurrence.

Very truly yours, A.D.Schmidt Vice President.

Power Resources MAS/slh Attachment cc: Robert Lowenstein, Esquire Director, Office of Inspection and Enforcement (30)Director, Office of Management, Xnformation and Program Control (3)PEOPLE...SERVING PEOPLE II~'~C'I 1

~, o1 FL 7 89 co~TRo~BLocx: 1 6 UCENSE NUMBER 0 0-0 0 0 0 0'CENSEE NAME S L S 1 UCENSE TYPE EVENT TYPE 0 0 4 1 1 1 1~03 25 26 30 31 32 14 15 LICENSEE EVENT REPORT , (PLEASE PRINT ALL REQUIRED INFORMATION/)

REPORT CATEGORY TYPE~a~corn'~L 7 8 57 58 59 REPOAT SOURCE 60 OOCKET NUMBEA EVENT OATE REPORT OATE 0 5 0-0 3 3 5 0 3 1 1 7 7-0 3 1 4 7 7 61 68 69'74 75 80 EVENT DESCRIPTION

[oat in er o 7 8 9 7 89 t ation the containment escape lock inner door failed Technical 60 mtediate corrective action was to maintain 80 k closed.This was the third occurrence of an.in-7 8 9 joag occurrences.

(335-77-18)

.7 8 9 SYSTEM CAUSE COOE COOE COMPONENT COOS[OD~]~A~E XX X X XX 7 8 9 10 11 12 17 CAUSE DESCRIPTION Qg Seals on the inner door failed due PRME COMPONENT SUFPUER COMPONENT MA%4%ACTUAEA C 3 1 0 N 48 to hardening of the rubber.()he seals were over 4 7 8 9 Qg ears old).The seals were replaced and tested satisfactorily.

7 8 9 Qg o able airlock door (335-76-14 and 335-76-46) but was unrelated to the previous 80 80 80 eo 7 8 9 QOj OTHER STATUS N A AMOUNT OF ACTIVITY NA N/A 7 89 FACILITY STATUS 5 POWER tlI~~z.o o 7 8 9 10 12 13 FOAM OF ACTIVITY CONTENT RELEASEO OF RELEASE~z~z 7 8 0 10 11 PERSONNEL EXPOSURES NUMBER TYPE OESCAIPTION Q)j~i~Iz J 7 89 11 12 13 PERSONNEL IN JURIFS NUMBER CESCAIPTION

~00 0 7 8 9 11 12 METHOO OF OISCOVERY 44 45 46 N/A'OISCOVEAY OESCRIPTION N/A LOCATION OF AELEASE N/A eo 60 60 60 eo P+03ABLE CONSEQUENCES

~15 7 89 LOSS OR DAMAGE TO FACILITY TYPE OESCAIPTION Z~r reduced to 1 7 89 10 PUBLICITY 7 89 ADDITIONAL FACTORS 7 89 N/A cent for re lacenent of seals.N/A N/A 60 60 7 89 NAME: M.A.Scho PHONE305/552-3779 60 CPO ddt e ddT k~r'o P(