View source for PY-CEI-NRR-0750, Special Rept:On 871015,valid Failure on Div 2 Diesel Generator Occurred During Tech Spec Surveillance 4.8.1.1.2. Caused by Shuttle Valve Failing to Reposition on Start Signal.Valve Replaced & Design Change Initiated

{{Adams
| number = ML20236P966
| issue date = 11/13/1987
| title = Special Rept:On 871015,valid Failure on Div 2 Diesel Generator Occurred During Tech Spec Surveillance 4.8.1.1.2. Caused by Shuttle Valve Failing to Reposition on Start Signal.Valve Replaced & Design Change Initiated
| author name = Edelman M
| author affiliation = CLEVELAND ELECTRIC ILLUMINATING CO.
| addressee name = 
| addressee affiliation = NRC OFFICE OF ADMINISTRATION &amp; RESOURCES MANAGEMENT (ARM)
| docket = 05000440
| license number = 
| contact person = 
| document report number = PY-CEI-NRR-0750, PY-CEI-NRR-750, NUDOCS 8711190115
| document type = REPORTABLE OCCURRENCE REPORT (SEE ALSO AO LER), TEXT-SAFETY REPORT
| page count = 2
}}

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i THE CLEVELAND ELECTRIC ILLUMIN ATING COMPANY                                                           q P.O     BOX 97     e  PERRY, OHIO 44081   e TELEPHONE (216) 259-3737  e  ADDRESS-1o CENTER ROAD Sewing The Best location in the Nation -l Murray R. Edelman                                                       PERRY NUCLEAR POWER PLANT
     $2 VICE PRE 51 PENT NU(1 EAR November 13, 1987                                          3 PY-CEI/NRR-0750 L l
I Document Control Desk U.S. Nuclear Regulatory Commission                                                            l Washington, D.C. 20555 Perry Nuclear Power Plant Docket No. 50-440 Special Report -                                           4 Valid Test Failure                                         !
Division 2 Diesel Generator

==Dear Sir:==

l Attached is a    Special Report concerning a valid test f ailure                              ]
of the Unit 1    Division 2 diesel generator. This report
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satisfies the    conditions of Technical Specifications                                       e 4.8.1.1.2 and    6.9.2.
Please feel free to contact me should you have any further questions.
Very truly yours, a
k Murray R. Ede man Senior Vice President                                       j Nuclear Group 1
l                        MRE: cab Attachment                                                                                    j 1
cc:   T. Colburn K. Connaughton                                                                          ;
I                              L. Hiller (Of fice of Resource Management)                                              i l                              USNRC Region III, Regional Administrator i   8711190115 871113 1    DR        ADDCK 050              0 I
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Attachment-
                                                                       .PY-CEI/NRR-0750 L' Page'1 of 1 SPECIAL REPORT DIVISION 2 DIESEL' GENERATOR VALID FAILURE On' October 15,:1987 a valid failure occurred on the Division 2 Diesel Generator while performing Technical Specificctien Surveillance 4.8.1.1.2. This is the sixth valid failure to occur on'the Perry Unit 1, Division 2 Diesel Generator.
As of October 15, 1987 the Division 2 Diesel Generator had undergone 61' valid tests,' including this sixth valid failure.
The failure occurred'on the~ start sequence of the Division 2 Diesel Generator j         during a routine surveillance test. .. A shuttle valve apparently failed to-l         reposition'on the start signal'which prevented the permissive signal to the field flashing circuit. Vithout the permissive.the generator did;not flash.and therefore produced no output, voltage. .The Division.2 Diesel Generator was manually shutdown without incident. The' shuttle valve vas replaced and a design change initiated to replace;its function with electro-mechanical relays.
         .The Division 2 Diesel Generator was restarted and verified operable by performing the Division 2 Diesel Generator and Load Surveillance Test. ' The Division 2 Diesel Generator was declared. inoperable on October 15, 1987 at 0910 and was subsequently declared operable on October 17,.1987 at 1312 for a total out of service time of 2 days, 4 hours and 2 minutes. Since that time the design change has been implemented and successfully retested.
The surveillance testing interval vill remain at,once every 7 days, which is in accordance with Technical Specification Table 4.8.1.1.2-1.
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