View source for PNO-IV-87-004, on 870114,licensee Discovered Problem W/One Diesel Generator While Performing 24 H Preoperational Test. Caused by Stuck Intake Valve Push Rod.Diesel Generator Shutdown & Repaired by Licensee

{{Adams
| number = ML20207P838
| issue date = 01/14/1987
| title = PNO-IV-87-004:on 870114,licensee Discovered Problem W/One Diesel Generator While Performing 24 H Preoperational Test. Caused by Stuck Intake Valve Push Rod.Diesel Generator Shutdown & Repaired by Licensee
| author name = Constable G
| author affiliation = NRC OFFICE OF INSPECTION &amp; ENFORCEMENT (IE REGION IV)
| addressee name = 
| addressee affiliation = 
| docket = 05000498
| license number = 
| contact person = 
| document report number = PNO-IV-87-004, PNO-IV-87-4, NUDOCS 8701200302
| document type = PRELIMINARY NOTIFICATION OF EVENT OR OCCURRENCE (PNO,, TEXT-INSPECTION &amp; AUDIT &amp; I&amp;E CIRCULARS
| page count = 2
}}
{{#Wiki_filter:I January 14, 1987 PRELIMINARY NOTIFICATION OF EVENT OR UNUSUAL OCCURRENCE -- PN0-IV-87-04 i
This preliminary notification constitutes EARLY notice of events of POSSIBLE t    safety or public interest significance. The information is as initially received I    without verification or evaluation, and is basically all that is known by the
!    Region IV staff on this date.
FACILITY: Houston Lighting & Power Co.                                           Licensee Emergency Classification:
South Texas Project (STP)                                                   Notification of Unusual Event Bay City, Texas                                                             Alert 50-498                                                                      Site Area Emergency
:                                                                                           General Emergency X    Not Applicable

==SUBJECT:==
DIESEL GENERATOR FAILURE the licensee discovered a problem with one of At theapproximately     10:30 a.m.
Unit I diesel generators   (DG)(CST),(Cooper-Bessemer) requiring it to be shutdown. The DG was in the sixteenth hour of a 24-hour preoperational test.
Preliminary investigation indicates that the problem may be a stuck intake valve push rod. The DG was shutdown and is being repaired by the licensee.
Neither the licensee nor the NRC plans to issue a press release.
Region IV received notification of this occurrence from the Senior Resident Inspector. IE and NRR have been contacted.
This information has been confirmed with a licensee representative.
CONTACT:   G.L. Constable,(FTS: 728-8151)
DISTRIBUTION:
MAIL:
H. St.                MNBB         E/W                       Willste                        ADMIDMB(Original)
Chairman Zech         ED0          IE                         NMSS                          DOT:(Transonly)
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[~RIV:DRSff[jc EHJohnson:           .RDMartin                                                  Transmitted 5520 on 1/14/87 - 5:00p.m. jc 1/14/87             f1/14/87 fi ey 8701200302 870114 PDR    ILE PNO-IV-87-004      PDR

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