View source for PNO-III-85-095B, during Insp of Emergency Diesel Generator 11,degradation of Six Upper Crankshaft Bearings Noted.Cause Undetermined.Findings & Relation of Findings to Other Diesel Generators Being Evaluated

{{Adams
| number = ML20137W168
| issue date = 12/04/1985
| title = PNO-III-85-095B:during Insp of Emergency Diesel Generator 11,degradation of Six Upper Crankshaft Bearings Noted.Cause Undetermined.Findings & Relation of Findings to Other Diesel Generators Being Evaluated
| author name = Chrissotimos N, Wright G
| author affiliation = NRC OFFICE OF INSPECTION &amp; ENFORCEMENT (IE REGION III)
| addressee name = 
| addressee affiliation = 
| docket = 05000341
| license number = 
| contact person = 
| document report number = PNO-III-85-095B, PNO-III-85-95B, NUDOCS 8512100188
| document type = PRELIMINARY NOTIFICATION OF EVENT OR OCCURRENCE (PNO,, TEXT-INSPECTION &amp; AUDIT &amp; I&amp;E CIRCULARS
| page count = 1
}}
{{#Wiki_filter:r PRELIMINARY NOTIFICATION OF EVENT OR UNUSUAL OCCURRENCE--PNO-III-85-95B           Date December 4, 1985 This preliminary notification constitutes EARLY notice of events of POSSIBLE safety or public interest significance. The information is as initially received without v:rification or evaluation, and is basically all that is known by the Region III staff on this date.
Facility:   Detroit Edison Company                 Licensee Emergency Classification:
Fermi 2 Nuclear Plant                      Notification of an Unusual Event Newport, MI 48166                           Alert Site Area Emergency License No: 50-241-                         General   Emergency p gg                    XX   Not Applicable

==Subject:==
DAMAGE TO DIESEL GENERATOR DURING TESTING (SECOND UPDATE)
In an inspection of Emergency Diesel Generator 11, the licensee has identified signs of d: gradation (metal pickup) on six upper crankshaft bearings. The inspection was requested by Region III (Chicago) and the Office of Nuclear Reactor Regulation to determine the condition of the diesel generator, which had been rebuilt in February 1985 including replacement of the upper crankshaft and bearings. Repairs are continuing for Diesel Generators 13 and 14 (Reference PN0-III-85-95 and 95A). Plans for inspecting the fourth unit, Diesel Generator 12, have not been made at this time.
The licensee is evaluating the new Diesel Generator 11 findings and the implication of the findings on the other diesel generators. Diesel Generator 11 has had fewer than 25 starts with normal prelubrication. There may have been one " fast start" without normal prelubrication. (The damage to Diesel Generators 11 and 12 in January 1985 was attributed to inadequate prelubrication of the upper crankshaft bearings.)
R:gion III and the Office of Nuclear Reactor Regulation personnel are on-site reviewing the diesel generator problems.
Tha State of Michigan will be notified.
Region III received this updated information from the Resident Inspector at 7:30 a.m.,
(CST), December 4,1985.
CONTACT:
b G. Wright fh N. Christotimos FTS 388-5695         FTS 388-5716 DISTRIBUTION:
H. St.                     ED0        NRR       E/W        Willste       Mail: ADM:DMB Chairman Palladino         PA                   IE          NMSS                 D0T:Trans only Comm. Zech                 ELD                  OIA         RES Comm. Bernthal                                  AE0D Comm. Roberts Comm. Asselstine           SP /g0T         Regional Offices ACRS SECY                        INP0 / 7 6_         NSAC/).~Q3 CA                         RIII Resident Office PDR                        Licensee:    /,P7//         (Corp. Office-ReactorLic.Only) 0 gk21gg88851204                                                [0Nohber1985          J PNO-II I-85-095 PDR SE3f}}

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