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 Florida Power & Light Co
To:	Moseley N NRC/RGN-II
References
PRN-LI-77-99 LER 77-017-00
Download: ML18110A890 (12)

Text

NRC FoAM 196 U.S. NUCLEAR AEGUL*TOAV COMMISSION DOCKET NUMOE A I2.70)

'BC DISTRIBUTION FoR f,. T 50 DOCKET MATERIAL FILE NUMOEA INCIDENT REPORT TO: ~ FROM; DATE OF DOCUMENT

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Florida Power & Light Companyt 4/6/77 Mr. Norman C. Moseley Miami, Florida DATE RECEIVED A. D. Schmidt 4 21 77 QLETTEA Q NOTOR IZE D INPUT FOAM NUMBER OF COPIES RECEIVED Q OA IG INAL Qcopv DESCRIPTION QUNCLASSIFIED ENCLOSURE I at~8~

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I Ltre trans the following: Licensee Event Report (RO 50-335/77-17) on 3/7/77 concerning CEA 20 not the Upper Electrical 'Limit reed withdrawing'ecause switch had failed closed, thus prohibiting

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outward CEA .mo one ~ ~ ~

(RO 50-335/76-46) on 3/11/77 concernirig the containment escape lock inner door failing

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vG, tech spec surveillance ~ ~ .

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PERSONNEL EXPOSURE IS INVOLVED SEND DIRECTLY TO KREGER/J, COLLINS FOR ACTION/INFO RiVIATION BRANCH CHIEF:

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NRC FOAM 196 {2 70)

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P. O. BOX 013100, MIAMI, FL 33101 Qlyyz FLORIDA POWER & LIGHT COMPANY April 6, 1977

. PRN-LI-77-99 Aegulatory EQLCfg q

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 335-77-17 ~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 e

Power Resources 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/89 PEOPLE... SERVING PEOPLE

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LICENSEE EVENT REPORT

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

BYNAME LCENSEE UCENSE EVENT LICENSE NUMBER TYPE TYPE F L S L S 1 0 0 0 0 0 0 0 0 0 411 1 1 I z ~03

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7 89 14 15 25 26 30 REPORT REPORT CATEGORY TYPE SOURCE OOCKET NUMBER EVENT OATE REPORT OATE I001I coN'T ~L ~L 0 5 0 0 3 3 5 0 3 0 7 7 7 0 3 1 5 7 7 7 8 57 58 59 60 61 68 69 74 75 60 I

EVENT DESCRIPTION QO 2 Durin surveillance testin , CEA 20 would not withdraw with the rest of Group 2, so 7 8 9 BO action was taken in accordance with action statement "d" of Specification 3.1.3.1.

7 89 80

[QQ4] Shutdown margin was veri fied, 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 7 8 9 60 QOQ minu tes thereb sa t is f in ac tion a m II II f The o erabilit 89 PAVE 80 SYSTEM COOE CAUSE COOE COtiIPONENT COOE COMPO IIENT SUPPLER COMPO BJ ENT MANUF~i'FER

~0> ~RB ~B 0 K T B R K C 4 9 0 N 7 8 9 10 11 12 17 47 48 CAUSE DESCRIPTION tOOBj CEA 20 would not withdraw because the Upper Electrical Limit (UEL) reed switch had 7 8 9 7

Q~ I8 9 failed closed, thus prohibiting outward CEA motion. The failed reed switch was taken 80 60 of the circuit and the s are UEL reed switches were verified to be in service.

7 89 FACILIIY 80

, METHOO OF STATUS '%OWER OTHER STATUS OISCOVERY OISCOVERY OESCRIPTION

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~B ~OB 0 NA NA 10 12 13 44 45 cO FORM OF AcnVITY COATENT RELEASED OF RELEASE AMOUNT OF ACnVITY LOCATION OF RELEASE KIH NA NA 7 8 9 10 11 44 45 60 PERSONNEL EXPOSURES NUMSER TYPE OESCRIPTION

~io ~oo o '~z 7 8 9 11 12 13 80 PERSONNEL INJURIES NUMBER CESCRIPTIOtJ PP+ 0 0 NA 7 8 9 11 12 ao PROBABLE CONSEQUENCES Qg8 NA 7 9 80 LOSS OR DAMAGE TO FACILITY TYPE OESCRIPTION l91 LzJ 7 89 NA 10 60 PUBLICITY NA 7 89 .BO ADDITIONAL FACTORS Qg See a e two for continuation of Event Description and Cause Description.

7 89 7 89 M: A. Scho man 305 552-3802 PHONEI COO 65 I ~ II 0T

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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.

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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

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LICENSEE EVENT REPORT co~TRo~ BLocx: , (PLEASE PRINT ALL REQUIRED INFORMATION/)

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'CENSEE UCENSE EVENT NAME UCENSE NUMBER TYPE TYPE o1 FL S L S 1 0 0 0 0 0 0 0 0 0 4 1 1 1 1 ~03 7 89 14 15 25 26 30 31 32 REPORT REPOAT CATEGORY TYPE SOURCE OOCKET NUMBEA EVENT OATE REPORT OATE

~a~ corn' ~L 0 5 0 0 3 3 5 0 3 1 1 7 7 -

0 3 1 4 7 7 7 8 57 58 59 60 61 68 69 74 75 80 EVENT DESCRIPTION t

[oat in er o ation the containment escape lock inner door failed Technical 7 8 9 60 mtediate corrective action was to maintain 7 89 80 k closed. This was the third occurrence of an. in-7 8 9 80 Qg8 o able airlock door (335-76-14 and 335-76-46) but was unrelated to the previous 7 9 80 joag occurrences. (335-77-18) .

7 8 9 PRME 80 SYSTEM CAUSE COMPONENT COMPONENT COOE COOE COMPONENT COOS SUFPUER MA%4%ACTUAEA

[OD~]~A ~E XX X X XX C 3 1 0 N 7 8 9 10 11 12 17 48 CAUSE DESCRIPTION Qg8 Seals on the inner door failed due to hardening of the rubber. ()he seals were over 4 7 9 eo Qg ears old). The seals were replaced and tested satisfactorily.

7 8 9 QOj 7 89 FACILITY

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STATUS FOAM OF 5

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10 POWER o o 12 13 OTHER STATUS N A 44 OISCOVERY 45 46 OISCOVEAY OESCRIPTION N/A 60 ACTIVITY CONTENT RELEASEO OF RELEASE AMOUNT OF ACTIVITY LOCATION OF AELEASE

~z ~z NA N/A 7 8 0 10 11 60 PERSONNEL EXPOSURES 7

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~i~ NUMBER 11 TYPE Iz J 12 13 OESCAIPTION N/A 60 PERSONNEL INJURIFS NUMBER CESCAIPTION

~00 0 N/A 7 8 9 11 12 eo P+03ABLE CONSEQUENCES

~15 N/A 7 89 60 LOSS OR DAMAGE TO FACILITY TYPE OESCAIPTION 7 89 10 Z~r reduced to 1 cent for re lacenent of seals.

60 PUBLICITY N/A 7 89 ADDITIONAL FACTORS N/A 7 89 7 89 60 NAME: M. A. Scho PHONE305/ 552-3779 CPO ddt e ddT

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