ML18054A860

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LER 89-014-00:on 890620,underground Diesel Fuel Oil Storage Tank T-10 Did Not Contain 23,000 Gallons Required to Ensure 7 Day Fuel Supply.Caused by Lack of Guidance in Surveillance Procedures.Surveillance Procedures revised.W/890720 Ltr
ML18054A860
Person / Time
Site: Palisades Entergy icon.png
Issue date: 07/20/1989
From: Johnson B, Kozup C
CONSUMERS ENERGY CO. (FORMERLY CONSUMERS POWER CO.)
To:
NRC OFFICE OF INFORMATION RESOURCES MANAGEMENT (IRM)
References
LER-89-014, LER-89-14, NUDOCS 8907250134
Download: ML18054A860 (4)
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.@p consumers Power POWERING MICHIGAN'S PROGRESS General Offices: 1945 West f'arnall fload, Jackson, Ml *49201 * (5171788-0550 July 20, 1989 Nuclear Regulatory Commission Document Control Desk Washington, DC 20555 DOCKET 50-255 - LICENSE DPR PALISADES PLANT -

LICENSEE EVENT REPORT 89-014 - (FAILURE TO MAINTAIN NECESSARY DIESEL FUEL OIL CAPACITY)

Licensee Event Report (LER)89-014 (Failure to Maintain Necessary " Diesel Fuel Oil Capacity) is attached. This event is reportable to t~e NRG per 10CFR50.73(a)(2)(ii),

Brian D Johnson Staff Licensing Engineer CC Administrator, Region III, USNRC NRC Resident Inspector - Palisades Attachment 8907250134 ::::90720 PDR ADOCK 0500025~i

F'DC OC0789-0156-NL04 A 0\15 E/\IERGY"COMPA/\IY

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FAILURE TO MAINTAIN NECESSARY DIESEL FUEL OIL CAPACITY IYINT DATI Ill Liii N~fllll 111 llll'OllT DATE 171 DTMlll U1CILITIU .-o\.YID Ill

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IX1'1CTEO :SU*MIS$10N OA TEI 1.1.. -o1HV*trNt9lt1 fJff#tt liftfl*-ll>>C* ryprtwnrft,, linA) l111 h NO IUIMllllON CATI 1161 I I I Abstract While performing Technical Specification (TS) Surveillance Procedure DW0-1 "Operators Daily/Weekly/Bi-Weekly Items" on June 20, 1989, Operations personnel identified that the underground diesel fuel oil storage tank T-10

[DC;TK] did not contain the 23,000 gallons required to ensure a seven day fuel oil supply. When identified, T-10 contained approximately 22,250 gallons. Prior to performance of DW0-1, TS Surveillance Procedure M0-7A-1, "Emergency Diesel Generator 1-1 11 was performed t:wice, resulting in the decrease from the approximately 25,200 gallons contained in T-10 prior to the test. The reactor was critical with the Plant operating at 80 percent of rated power when the condition was identified.

The second performance of M0-7A-1 was completed at approximately 0100.

After completion, Operations personnel performed DW0-1 and at approximately 0120, T-10 volume was determined to be 22,250 gallons. At 0140 an order for fuel oil was expedited and at 1209 the delivery was received, This condition has been attributed to no guidance being provided in the diesel generator surveillance procedures regarding fuel inventory maintenance and insufficient margin between tank capacity and volume to meet consumption demands.

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NRC Form . . . .19-831 LICENSEE EVENT REPORT ILER) TEXT CONTINUATION U.I. NUCLEAll llEGULATOllY COMMIDION APPROVED OMI NO. 31!i0~104 EXPIRES: 8/31185 FACILITY NAME 111 DOCKET NUMHll 121 Liii NUM9111 *191 PAGE IJI PALI$ADES NUCLEAR. ~LANT 0 f5IOIOfOl2f5f 5 8J9 - Oflf4 -010 012 OFO f3 TEXT llf mcn-;.teqWW, - - N l f C Fonn .BM'al 1171

. _Description While performing Technical Specificatfon (TS) Surveillance Procedure DW0-1 "Operators Daily/Weekly/Bi-Weekly Items" on June 20, 1989, Operations personnel identified that the underground diesel fuel oil storage tank T-10 *

[DC;TK] did not contain the 23,000 gallons required to ensure a seven day fuel oil supply. When identified, T-10 contained approximately 22,250 gallons. Prior to performance of DW0-1, TS Surveillance Procedure M0-7A-l, "Emergency Diesel Generator 1-1" was performed twice, resulting in the

  • decrease from the approximately 25,200 gallons contained in T-10 prior* to the test. The reactor was critical with the Plant operating at 80 percent of rated power when the condition was identified.

On June 19, 1989, TS Surveillance Procedure M0-7A-l was* performed, however, due to diesel exhaust temperatures being within the required action range, the test was reperformed starting at approximately 1635 .on June 19, 1989; At approximately 0100 on June 20, 1989 this second M0-7A-l was completed and diesel generator 1-1 secured. Subsequently, DW0-1 was performed at 0120 and T-10 volume determined to be approximately 22,250 gallons. At 0140 an order

  • for 5,000 gallons of diesel fuel was expedited and at 1209 the delivery was received.

As presented in Licensee Event Report 89-005 the basis for TS -3. 7 states that "the 16,000 gallons in the storage tank in addition to the day tank will provide*a diesel operation under required loading conditions for a*

minimum period of seven days". The day tank [EK;TK] capacity of each diesel generator [EK;DG] is 2,700 gallons. In addition to fuel oil storage capacity provided by the underground storage tank T-10 [DC;TK] and the day tanks, a connection is available to pump fuel oil directly into the day tanks from a tanker truck.

The' Palisades Final Safety Analysis Report states that Palisades is committed to IEEE 308-1978which requires maintenance of a seven day fuel oil supply. As the 1968 calculation which determined the 16,000 gallon TS fuel oil capacity contains equipment loading and operating times which differ from- current requirements, a preliminary calculation was performed to determine the adequacy of the required reserve capacity. These preliminary calculations revealed that 23,000 gallons of fuel oil would be required to meet current equipment loading and operating times.

Cause Of The Event This condition has been attributed to no guidance being provided in the diesel generator surveillance procedures regarding fuel inventory maintenance and to insufficient margin between tank capacity and the required volume to meet current fuel oil consumption demands.

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NAC form

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!9-831 . -

LICENSEE EVENT REPORT ILER> TEXT CONTINUATION

  • U.S. NUCLEAll.;llEGULATOllV COMMllllON APPROVED OMS NO. 3150~1a.

EXPIRES: 81311115 FACILITY NAME 111 DOCKET NUMHA IZI LEll NU.Ill Ill PAGE 131 PALISADES :NUCLEAR PLANT 0 1s I 0 I 0 I 0 12 I 51 5 8 19 - 0 I ll 4 - 0I0 0 I3 OF 0 I 3 T£XT flf--*--* - - N / f C FOnn .-.*11.1171 Corrective Action The capability of the underground fuel oil storage tank is being evaluated as part of the fuel oil system upgrade item within the Palisades Five Year Plan. Diesel g~nerator surveillance procedures are being revised to include information on fuel oil consumption at no load, 50 percent load and full .

load conditions. Additionally, the revisions will include the verification that sufficient fuel oil is available prior to starting the surveillance

  • tests.

Analysis Of The Event Although current TS specify a 16,000 gallon fuel oil capacity be maintained, an administrative limit of 23,000 gallons existed with direction to operators to reorder fuel oil to preclude going below the 23,000 gallon limit. Further, as recognized in the basis for TS 3.7, "it is considered incredible not to be able to secure fuel oil from one of several sources within a radius of 70 miles* in less than three days under the worst of weather conditions". Therefore, even though fuel oil onsite dropped below the required seven day fuel oil supply, no threat to the.public health and safety existed.

This event is being reported per 10CFR50.73(a)(2)(ii)(B) as a condition that was outside the design basis of the Plant.

Additional Information For additional information regarding diesel generator fuel oil capacity, reference Licensee Event Reports89-005, 87-040 and 86-012.

flil"C FO"M 3a8A 19-831

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