05000440/LER-1989-001, :on 890111,div 2 Diesel Generator Declared Inoperable Due to Unsatisfactory Results for Fuel Oil Storage Tank Sample.Caused by Oxidation of Fuel Oil Due to Normal Aging.Dispersant Agent Added to Tank
| ML20246P617 | |
| Person / Time | |
|---|---|
| Site: | Perry  |
| Issue date: | 03/17/1989 |
| From: | Dunn G, Kaplan A CLEVELAND ELECTRIC ILLUMINATING CO. |
| To: | NRC OFFICE OF ADMINISTRATION & RESOURCES MANAGEMENT (ARM) |
| References | |
| LER-89-001, LER-89-1, PY-CEI-NRR-0989, PY-CEI-NRR-989, NUDOCS 8903280266 | |
| Download: ML20246P617 (5) | |
| Event date: | |
|---|---|
| Report date: | |
| 4401989001R00 - NRC Website | |
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{{#Wiki_filter:.. _. _ _ _. _ _ _ _ _ _ _ _ s 4 NIC form Me U.S. NUCLEAR KEEULATO3tY COMMIS$80N APPROYED Oht3 NO. 218041M LICENSEE EVENT REPORT (LER) EXPIRES.- 8/Weg FACILITY NAME (11 DOCKET NUMSER 12) PAGE (3) Perry Nuclear Power Plant. Unit 1 0 l 5 l 0 l 0 l 0 l4 l 4 lg 1 lOFln l4 Oxidation Of Division 2 Fuel Oil Resulted In Division 2 Diesel Generator Being Incoerable When Division i Diesel Generator Was Out For Planned Mainten ggg EVENT OATE 19) LER NUMSER 16) REPORT DATE (7) OTHER FACILITIES INVOLVED tel MONTH OAY YEAR YEAR 8'gi n
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9 8l9 0l0l1 0l1 0l3 ll 7 8l9 0 f 5 l0 l 0,0 ; l l OPE R ATING THIS REPORT IS SUSMITTED PURSUANT TO THE REQUIREMENTS OF 10 CFR {: IChece one or more of the fattow,ng) till i 20 402(b) 20 405(si 60.73teH2Hevi 73.711W 20 406(sit 1Hil 60.36(sH1) X 50.73fel(2Hel 73.71(el 0l7 IO 20.40si.HiHe so.wi.im so.73i.H2Hvai 1101 gMER4s,.cgager 20 4061sH1Hu0 50.73l alt 2H4 50.73(aH2HvoiHA) J66Al 20 406tel(1Hivl 60.73(aH2HW) 50.731sH2HunillB) 20.406teH1 Hv) 50.73teH2H6H 50.73(sH2Hal LICENSEE CONTACT FOR THl8 LER 1126 NAME TELEPHONE NUMBER ARE A CODE Grecorv A. Dunn. Comoliance Encineer. Extension 6484 21116 2 1519l-11171117 COMPLETE ONE LINE FOR EACH COMPONENT P AILURE DESCRISED IN TH18 REPORT (13)
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SYSTE M COMPONENT 0E TU PRD I I I I I I I I I I I I I I l I l I l I l l l l l l l l SUPPLEMENTAL REPORT EXPECTED (14) MONTH DAY ' EAR SU8Mf88lON YE $ it! ve,, com,,ete f XPECTED SUO4913$10N DA ff} No l A.TRACTa,,,,,,,,,uo,,,,.....,,,,,,,,..,,,,,,,,,,,,,,,.,,,,,,,,,,,,,,n.) On January 11, 1989 at 1905 the Division 2 Diesel Generator was declared inoperable due to unsatisfactory results for a fuel oil storage tank sample. At this time, the Division 1 Diesel Generator was out of service for planned maintenance. The Division 3 Diesel Generator was also placed in an inoperable status for approximately 15 minutes while performing prestart checks for a surveillance required by Technical Specifications. On January 5 a truck of fuel oil was added to the Division 2 fuel storage tank following satisfactory s completion of the pre-offload analyses. A sample was then drawn for the seven j day and fourteen day analyses from the Division 2 tank. On January 11 the oxidation stability analysis failed due to high concentration of insolubles o in the fuel oil clogging the sample filter. v ": twz MC-The cause of the fuel oil failure was a high concentration of insolubles. The g insolubles are produced by oxidation during normal aging of thg fuel oil and (D o believed to be accelerated by the newly added oil. Contributing to the event a was a programmatic weakness in that the Division 1 Diesel generator plan,ned g maintenance should not have been allowed to start until the Division 2 fuel oil o ci sample results were completed and verified to be satisfactory. (D < fd( Immediate corrective actions included returning Division 1 Diesel Generator to 0o a standby mode and adding a dispersant agent to the Division 2 fuel storage N tank. The Division 3 Di,esel Generator test was completed satisfactorily. The s planned maintenance schedule will be revised as necessary to take into account all outstanding surveillance. The fuel storage tanks for all three divisions will be pumped down and refilled during the current refuel outage. Additionally, a Technical Specification change will be pursued to allow using a hfchor crade diesel fuel oil which has a loncer shelf life. s "e"s*3I"* "*
n mac. me.. u.s. wucuan arutarony commissios. -{ LICENSEE EVENT REPORT (LER) TEXT CONTINUATION awoveo ous no. 3%eio4 ) j exnnes: wws: . ciurv mam m ooc m mu un m u,,,u,,,, v,.a ar?~,p,*' 41=,;; 0!1 012 OF 0 l4 l Parry Nuclear Power Plant, Unit I o l5 l0 j o lo l4 l4 l 0 8l9 0 l0l1 maimam. emww.assowmer maawirn On January 11,.1989 at 1905 the Division 1 and Division 2 Diesel Generators [EK] were inoperable. The Division 3 Diesel Generator was also inoperable for approximately 15 minutes while performing prestart checks for a surveillance required by Technical Specifications. At the time of the event, the plant was in Operational Condition 1 (Power Operations). Reactor power was approximately 70 percent of rated and reactor vessel [RPV) pressure was approximately 970 psig. On January 4,1989 a delivery of fuel oil arrived on site. for addition to the Division 2 fuel storage tank. A sample was taken by plant chemistry personnel and analyzed for water and sediment, viscosity, and API gravity. All analyses results passed the acceptance criteria. The fuel was then off-loaded into the Division 2 fuel storage tank. On January 5 at 1305 a composite sample of the Division 2 storage tank was drawn for the immediate, seven day and fourteen day required analyses. The immediate analysis results for the above parameters were satisfactory. Prior to receiving the chemistry results, on January 10 at l 0401 the Division 1 Diesel Generator was taken out of service for a planned maintenance outage. On January 11 at 1905 the results from the January 5 Division 2 storage tank sample were received with unsatisfactory results and the Division 2 Diesel Generator was declared inoperable. The oxidation stability test was considered a failure due to filter blockage caused by a high concentration of insolubles prior to completion of the test. j A representative from Betz Laboratories, Incorporated was contacted to assist in identifying the cause of the fuel oil f ailure and provide recommetidations for corrective actions. Due to the high insolubles content in the fuel oil, formation of particulate occurred during the accelerated aging process for the oxidation stability analysis. This particulate caused filter blockage during a subsequent step of the analysis. It was recommended to add a dispersant agent (Betz Fuel-Solv 22, FS-22) to the Division 2 storage tank to reverse the particulate ' f ormation.: The dispersant was added at 0415 on January 12 and the Division 2 storage tank was placed in recirculation. Samples were drawn at 0915, 1140, 1830 and 2400 and results'were expected approximately twenty four hotirs af ter each sample. < A surveillance run of the Division 3 Diesel Generator was commenced at. 2015 on January 11 as required by the Technical Specifications. The Division 3 Diesel Generator was placed in an inoperable status for approximately 15 minutes while performing the prestart checks as required by the' Systems Operating Instruction. In order to manually rotate the crankshaft, the Diesel Generator Mode Switch is placed in the Maintenance position,.to prevent the diesel from starting on an automatic signal. The Division 3 Diesel Generator test was completed satisfactorily. l l The Division 1 Diesel Generator maintenance was completed on an accelerated I. schedule. The Division 1 Diesel Generator was returned to an operable status L at 0345 on January 12. The r.esults of the first sample after adding FS-22 were received on January 13 with satisfactory values for the insoluables' parameter and the Division 2 Diesel Generator was declare,d operable at 1035. I l
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~ ~ rnC Form 338A U.S. NUCLEAA REGULATORY COMMISSION LICENSEE EVENT REPORT (LER) TEXT CONTINUATION APPROVEO OM8 NO. 3160-0104 EXDRES: 8/31/N F ACILITY NAaAE H) DOCKET NUMGER (2) LER NUMGER (6) PAGE (3) YEAR Nhm UYsYa M 0l1 0l3 OF 0 l4 l Perry Nuclear Power Plant, Unit 1 0 l5 l0 l0 l0 l 4 l 4l 0 8l9 0l0 l1 1 err a==.
==.ww .annanancr amaun The cause of the fuel oil failure was oxidation of the fuel oil due to normal aging. The fuel oil has' been in the storage tank for approximately four years with only a small percentage being used during Diesel Generator testing. The fuel oil vendor has indicated that the shelf life for number 2 fuel oil is approximately one year. However, the storage time can be extended with the use of additives. The possibility exists that the fuel oil which was added on January 5 chemically reacted with the existing fuel oil, aggravating the oxidation process. Contributing to the event was a programmatic weakness in that the Division 1 Diesel Generator planned maintenance should not have been allowed to start until the Division 2 fuel oil sample results were completed and verified to be satisfactory. The current procedures require verification that the redundant system or component is operable prior to removing a system or component from service for planned maintenance. Performing sample analysis for fuel oil does not cause equipment to be inoperable until failed results are identified. However, the potential for unsatisfactory results exist and as in this event redundant divisions may become inoperable simultaneously if maintenance is started before the results are confirmed. The A.C. power sources and associated distribution systems ensure that sufficient power will be available to supply the safety related equipment required for the safe shutdown of the plant and mitigation and control of accident conditions. Although the Division 2 fuel oil did not pass the stringent chemical analysis specification, according to the vendor, the Diesel Generator would have operated if the fuel could reach the engine. Due to the sample passing the water and sediment tests, it is unlikely that the insolubles in the fuel oil would have been of sufficient quantity to cause clogging of the fuel filter, and since the fuel passes through a duplex strainer which can be changed-out,while the diesel is running it is considered highly probable that the Division 2 Diesel Generator could have performed its intended function should there have been a Loss Of Offsite Power accident.. Offsite A.C. power was available throughout this event. Additionally, the Division 3 Diesel Generator and the High. Pressure Core Spray systems were available except for 'the short period during prestart checks. ~However, since both Division:1 and 2 Diesel Generators were declared Inoperable, this event is' considered t.o be potentially safety significant. No previous similar events have been identified. The immediate corrective actions included adding a dispersant agent (FS-22) to the Division 2 fuel storage tank. The Division 1 Diesel Generator maintenance was completed and Division 1 Diesel Generator was placed in the standby mode. Fuel oil samples and the filters used during the analyses were sent to an offsite laboratory for further analysis. A dispersant agent has subsequently been added to Division 1 fuel storage tank and samples from Division 1 and 3 fuel storage tanks have been analyzed with satisfactory results. The results of the analyses performed by the offsite laboratory did not dispute our own previous conclusions that the presence of
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88RC Paran NSA UK NUCLEAR FEiULATORY cot 8 MISSION LICENSEE EVENT REPORT (LER) TEXT CONTINUATION APPRovio OMS =0. asso-cio4 EXPIRES: t/31/3 PtsuTY IRAASE (H DOCKET NutBSER (23 LER NUMBER (S) PAGE(31 vyan i QN,h* ' $8,y f-Perry Nuclear Power Plant, Unit 1 0 l5 l0 l0 l0 l 4l 4]O 8l9 0l0l1
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m w.newwanc P aSsw nn insolubles caused the failure. The diesel."uel storage tanks for all three divisions are being pumped down and refilled with #2 fuel oil during the ongoing refuel outage. An instruction has been developed to add a biocide, a dispersant and a stabilizer on a per volume basis to extend the shelf life of the fuel oil to ensure high quality fuel throughout the second operating cycle. Use of a higher grade diesel fuel oil which has a longer shelf life and is less susceptible to oxidation during storage has been evaluated to be desirable. The API gravity for the higher grade diesel fuel oil is approximately 37.5 degrees. The Technical Specifications limit for API gravity is 36 degrees, therefore, a Technical Specification change is required prior to using the higher grade diesel fuel oil. Additionally, the higher grade diesel fuel produces less energy per unit volume and will require the Technical Specification change for minimum storage tank level. In order to prevent recurrence, the pit.nned maintenance schedule will be revised as necessary to take into account all outstanding surveillance. The surveillance for fuel storage tank sampling will be revised to require Outage Planning and the Technical Section System Engineer to be informed when the surveillance begins and when the results are obtained. Additionally, the System Operating Instruction for the Division 3 Diesel Generator will be revised to preclude performing prestart checks if both Division 1 and 2 Diesel Generators are Inoperable. A Technical Specification change will be pursued to allow using diesel fuel with a higher API gravity. Energy Industry identification System Codes are identified in the text as [XX]. g N.\\' e 4 e,m m
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THE CLEVELAND ELECTRIC ILLUMINATING COMPANY P.O. BOX 97 E PERRY, OH:0 44081 5 TELEPHONE (216) 259 3737 E ADDRESS 10 CENTER ROAD FROM CLEVELAND: 241 1650 Serving The Best Location in the Nation Al Kaplan PERRY NUCLEAR POWER PLANT VICE PRESIDENT NUCLEAR GROUP March 17, 1989 PY-CEI/NRR-0989 L U.S. Nuclear Regulatory Commission Document Control Desk Washington, D.C. 20555 Perry Nuclear Power Plant Docket No. 50-440 LER 89001 Dear Sir: Enclosed is Licensee Event Report 89001-01 for the Perry Nuclear Power Plant. L i Very truly yours, d Al Kaplan Vice President Nuclear Group AK/sc Enclosure: LER 89001-01 cc: T. Colburn NRC Resident Inspector U.S. Nuclear Regulatory Commission 799 Roosevelt Road Glen Ellyn, Illinois 60137 l-l l i ) \\ i }}