ML20207N469
| ML20207N469 | |
| Person / Time | |
|---|---|
| Site: | Fermi  |
| Issue date: | 01/05/1987 |
| From: | Agosti F DETROIT EDISON CO. |
| To: | Adensam E Office of Nuclear Reactor Regulation |
| References | |
| VPNO-87-0002, VPNO-87-2, NUDOCS 8701140237 | |
| Download: ML20207N469 (29) | |
Text
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- 2
- n Nuclear Operatsons Detroit lbe re-Edison BI5Eg==
y g,L, 08 1. 2 January 5, 1987 VPND-87-0002 Ottice ot Nuclear Reactor Regulation Ms. Elinor G. Adensam, Director Project Directorate No. 3 Division of BWR Licensing U. S. Nuclear Regulatory Connission Washington, D. C. 20555
Dear Ms. Adensam:
Reference:
- 1) Fermi 2 NRC Docket No. 50-341 NBC License No. NPF-43
- 2) Detroit Edison to NRC Letter,
" Additional Information on Diesel Generators," NE-85-0460, dated March 6, 1985
- 3) Detroit Edison to NRC Letter, "Claritication ot Diesel Generator Carmitments," 1E-85-0459, dated March 14, 1985
- 4) Detroit Edison to NBC letter, "Bnergency Diesel Generator Lubrication Analysis Program Update," RC-IG-85-0048, dated Septemer 20, 1985
Subject:
Canpletion of the Fermi 2 Emergency Diesel Generator (EDG) Lubrication Analysis 18 Month Trending Program _
Pursuant to the requirements of Condition ot License Item 10, and to cainitments in References 2) and 3),
Detroit Edison has been performing monthly analyses of the EDG lubricating oil and quarterly analyses at oil tilter media. Oil samples were being analyzed for metal concentrations and the tilter media deposits were being spectrographically analyzed. The results of these analyses have been trended for 18 months. A description i
of this surveillance program and a preliminary review ot i
the data was torwarded to the NBC in Reteren
- 4).
I I
8701140237 870105 ADOCK0500g1 DR i I i
Ms. Elinor G. Adensam January 5, 1987 VPfl0-87-0002 Page 2 Attie mnts 1 and 2 prwide the test analysis data and Attact. ent 3 is a report prwiding the evaluation of the required 18 months of data plus proposed modifimtions for a permanent program.
If you have any questions, please contact Mr. John Sherwood at (313) 586-4072 Sincerely,
[g Attachments 1
cc: Mr. W. G. Rogers Mr. J. J. Stefano Mr. G. C. Wright USNRC Document (bntrol Desk Washington, D. C. 20555 1
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Table of Contents:
Page Table 1-1 EDG 11 Lube Oil Sample Analysis Data 2
Table 1-2 EDG 12 Lube Oil Sample Analysis Data 3
Table 1-3 EDG 13 Lube oil Scaple Analysis Data 4
Table 1-4 EDG 14 Lube Oil Sample Analysis Data 5
Table 2-1 EDG 11 Lube Oil Filter Sample Analysis Data 6
Table 2-2 EDG 12 Lube Oil Filter Sample Analysis Data 6
Table 2-3 EDG 13 Lube Oil Filter Sample Analysis Data 7
Table 2-4 EDG 14 Lube Oil Filter Sample Analysis Data 7
B.
Legend to Table 1:
Lab performing the analysis is noted as follows:
(F2) Fermi 2 site chemistry lab
~
(ER) Engineering Research, Detroit Edison, oil lab (CTC) Cleveland Technical Center, Cleveland OH h
Analysis parameter ~s have been abbreviated as follows:
Visc. - Einematic viscosity in centistokes G 40C ll Pent: Insol, Vol 5 - Pentane insolubles in volume $
t k
Pent. Insol, wt 5 - Congulated pentane insolubles in usight 5 Al Insol - Aluminua residue in the coagulated pentane insolubles (above), in parts per million by weight Sn Insol - Tin (like Al Insol above)
Fe Insol - Iron (like Al Insol above)
Wear Part Cono - Concentration of wear particles, by quantitative ferrographic techniques Al Sol - Aluminua concentration in parts per aillion by weight _
Sn Sol - Tin (like Al Sol above)
TBN - Total base number in milligrams E0H per gram of oil l
4 h
4 I
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g-
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Table 1-1: EDG 11 Lube Oil Sample Analysis Data
.I
/
Sample Visc. Pent. Pent. Al Sn Fe Usar Al Sn TBN t
Date oSt Insol Insol Insol Insol. Insol Part Sol Sol ag KOH 40C Voll Vt$
ppa ppa ppa Conc ppa ppa
/g oil (F2)
(F2)
(ER)
(ER)
(ER)
(ER)
(ER) (CTC) (CTC) (CTC)
Proposed 170-
<1
<1
<5
<2
<10
<109. <5
<20
>2 y
Linits 200*
4/10/85 180
<0.1
.02 1.5
<0.5 53 0
2 93 5/17/85 179
<0.1
.01 1.5
<0.5 34 0
2 83 6/3/85 175 0.2
.02 0.8
<0.5 2.4 0
2 8.2 6/28/85 189
<0.1
.03
<0.5
<0.5 11.0 2
5 8.8 7/29/85 184 03
.04 09
<0.5 6.6 0
4 8.8 8/26/85 175
<0.1
.04 07
<0.5 1.2 0
7 8.4 9/23/85 177
<0.1
.02 0.9
<0.5 13 0
2 7.8 10/26/85 179
<0.1
.07 2.0
<0.5 2.2 0
8 7.4 12/23/85 179
<0.1
.09 1.1
<0.5 29 0
8 7.5 2/1/86 188
.03 03
<0.5 1.6 7
2/3/86 190
<0.1
.03 0.4
<0.5 1.6 10 2/6/86 1468
.06 03
<0.5 1.2 16 2/7/86 147
'.05 0.2
<0.5 07 9
2/8/86 147
.03 0.4
<0.5 1.1 11 3/8/86 149
<0.1
.17 07 0.7 31 6
3/10/86 148 *
.18 0.5 0.6 2.7 3
3/11/86 149 0.2
.13 0.5
<0.5 1.4 3
4/9/86 147
<0.1
.07
<0.5
<0.5 1.6 6
0 8
4/25/86 153 0.1
.10
<0.5
<0.5 1.7 1
0 7
1 6/5/86 147
<0.1
.10
<0.5
<0.5 0.9 2
6/20/86 146
<0.1
.09 0.9
<0.5 1.6 6
0 1
11.9 7/18/86 146 0.1
.05 0.8
<0.5 2.4 15 0
1 10 3 8/15/86 144 0.1
.19 2.0
<0.5 0.7 10 0
1 7.0 9/12/86 153
<0.1
.04 1.1
<0.5 2.7 20 0
1 12.1 Notes:
- analysis not performed (During post maintenance test runs, some analyses
/
were deemed unnecessary).
- oil changed from Caprinus 40 to Nob 11 gard 450 (new visa limits 120-154) i
- analysis capability acquired in January 1986 f
5 q
x i
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, Page 3 c.
Table 1-2: EDG 12 Lube 011 Sample Analysis Data Sample Visc. Pent. Pent. Al Sn Fe Wear Al Sn TBN l
Data cst Insol Insol Insol Insol Insol Part Sol Sol og E0H 40C Voll Wt$
ppa ppe ppe Conc ppa ppe
/g oil (F2)
(F2)
(ER)
(ER)
(ER)
(ER)
(ER) (CTC) (CTC) (CTC)
Proposed 170-
<1
<1
<5
<2
<10
<100
<5
<20
>2 Limits 200*
4/22/85 173 0.4
.01 0.4
<0.5 1.7 0
0 8.0 5/21/85 173 0.13
.05 0.8
<0 5 3.4 0
1 8.8 i
6/17/85 178
<0.1
.04
<0.5
<0.5 75 0
5 9.1 f
8/12/85 170
<0.1
.01 0.8
<0.5 1.4 0
1 8.6 9/9/85
.04 0.9
<0.5 8.0 0
4 7.7 10/7/85 171 0.18
.04 0.9
<0.5 0.8 0
7 7.7 l
10/25/85 170 0.12
.07 09
<0.5 36 0
5 7.0 l
12/23/85 159 0.24
.09 0.6
<0.5 1.4 0
6 6.7 h
~
1/26/86 172 0.22
.05 0.6
<0.5 3.4 17 1/27/86 172
<0.1
.03 0.6
<0.5 35 25 1/28/86 169
.08 0.5
<0.5 2.1 11 1/29/86 167
. 09 0.4
<0.5 17 12 1/30/86 167
.10 0.5
<0.5 1.8 8
1/31/86 165
.06 0.4
<0.5 1.6 12 r
2/2/86 165 *
.03 0.4
<0.5 2.0 12
.I 2/3/86 165 f
2/20/86 146e
<0.1 J
2/21/86 145
<0.1 2/23/86 144 s
2/24/86 142 1
2/25/86 140 2/26/86 138 3
2 2/27/86 138
- c.
2/28/86 138 3/1/86 137 0.2 f'.
3/2/86 138 ti '
3/3/86 138 3/4/86 138
<0.1 3/5/86 137 1
3/8/86 137
.23 0.6 0.7 13 7
4/4/86 137
<0.1 l
4/17/86 136 0.2 0
6 i
5/2/86 137
<0.1
.29
<0.5 0.7 32 13 l
6/5/86 140
<0.1
.25
<0.5 0.6 2.5 9
l 6/27/86 139 0.2
.19 1.0
<0.5 1.8 13 0
1 11 3 7/25/86 138 0.28
.13 0.8
<0.5 2.2 16 0
1 11 3 8/22/86 133 0.1
.15 0.8
<0.5 1.2 73 0
1 11 3 9/19/86 139
<0.1
.07 2.0
<0.5 2.0 66 0
1 11.4 Notes:
- analysis not performed (During post maintenance ' test runs, some analyses L
were deemed unnecessary).
e oil changed from Caprinus to Mobilgard 450 (new visc limits 120-154)
- analysis capability acquired January, 1986 li
't l
w ee-*
, Page 4 Table 1-3: EDG 13 Lube 011 sample Analysis Data
~
~
3 ample Visc. Pent. Pent. Al Sn Fe Wear Al Sn TBN Date cst Insol Insol Insol Insol Insol Part Sol Sol og E0H 40C Vol$
Ut$
ppe ppe ppe Conc ppa ppe
/g oil (F2)
(F2)
(BR)
(ER)
(ER)
(ER)
(ER) (CTC) (CTC) (CTC)
Proposed 170-
<1
<1
<5
<2
<10
<100
'<5
<20
>2 Limits 200*
4/4/85 190
<0.1
.02 1.0
<0.5 09 0
0 8.5 4/27/85 188 0.5
.04 07
<0.5 2.5 0
4 8.1 5/16/85 188
<0.1
.04 1.0
<0.5 17 0
2 7.8 6/10/85 188 0.4
.03 0.8
<0.5 2.2 0
0 8.9 7/10/85 188 0.7
.04
<0.5
<0.5 6.3 0
5 8.7 9/3/85 188
<0.1
.04 2.0
<0.5 1.5
'O 1
8.4 10/1/85 185
<0.1
.03 1.4
<0.5 1.7 0
1 8.0
^
10/28/85 181 0.13
.05 0.7
<0.5 2.0 0
7 72 11/7/85 173
<0.1
.05 0.8
<0.5 0.9 11/13/85 192
<0.1
.04 4.9
<0.5 1.1
=
12/9/85 181
<0.1
.03 1.0
<0.5 3.2 0
10 9.1 12/14/85 185
<0.1
. 05 0.9
<0.5 37 0
11 7.8 12/20/85 181
.24 1.0
<0.5 3.8 12/23/85 186
.18 0.9
<0.5 36 0
6 7.4 12/25/85
.15 0.8
<0.5 1.9 0
9 6.4 12/25/85
.26 1.2
<0.5 32 0
7 7.2 e
12/25/85 188
<0.1
.24 1.8
<0.5 2.6 0
7 7.4 1/28/86 1458
.02 0.5
<0.5 1.9 6
1/29/86 147
.06 0.5
<0.5 2.5 12 1/30/86 146
.04 0.4
<0.5 1.7 10 1/31/86 146
.08 0.6
<0.5 2.0 11
~
2/1/86 147
.08 0.5
<0.5 2.0 13 2/2/86 146
.11 0.4
<0.5 1.5 15 2/3/86 145
.08 0.4
<0.5 1.2 15 g
2/4/86 147
<0.1
.11 03
<0.5 1.4 11 s
2/5/86 146
.12 0.4
<0.5 1.5 8
' ~
2/6/86 146
.12 0.4
<0.5 13 17 3/8/86 148
.41 0.7 1.0 23 4
3/10/86 149
.44 0.7
.06 23 2
J 3/11/86 149
<0.1
.43 0.6 0.6 2.7 4
3/12/86 149 33 07 09 2.1 9
'J 4/11/86 149
.05
<0.5
<0.5 0.9 7
0 10 5/9/86 148
<0.1 34
<0 5 1.0 1.9 4
6/6/86 148 0.12 31
<0.5 0.8 1.9 3
7/6/86 150
<0.1 36 1.0
<0.5 2.0
-4 0
1 8.5 8/1/86 146 03 33 1.1
<0.5 23 4
0 1
9.6 8/30/86 146
<0.1
.46 1.2 0.7 2.6 54 0
1 9.7 9/8/86
.14 13 0.7
<0.5 50 0
1 9.8 9/8/86
.15 13 07
<0.5 54 0
1 10.7 I
9/26/86 148
<0.1
.16 29
<0,5 2.1 49 0
1 10.8 Notes:
I-
- analysis not performed (During post maintenance test runs, some analyses were deemed unnecessary).
- oil changed from Caprinus 40 to Mobilgard 450 (new visc. limits 120-154)
- analysis capability acquired in January 1986
_ Attachment 1 Page 5 t
.e Table 1-4: EDG 14 Lube Oil Sample Analysis Data Sample Visc. Pent. Pent. Al Sn Fe Wear Al Sn TBN Date ' cst Insol Insol Insol Insol Insol Part Sol Sol ag KOH 40C Vol$
Ut1 ppa ppe ppe Conc ppe ppa
/g oil (F2)
(F2)
(ER)
(ER)
(ER)
(ER)
(ER)
(CTC) (CTC) (CTC) 4 Pr+ -:::s 170-
<1
<1
<5
<2
<10
<100
<5
<20
>2 l
Limits 200*
4/5/85 174
<0.1
.03 0.4
<0 5 42 0
0 8.6 5/27/85 173
<0.1 14 1.0
<0 5 110 0
1 8.1 6/24/85
.06
<0.5
<0.5 6.7 3
5 8.8 7/22/85
.04 0.8
<0.5 5.4 0
3 83 7/25/85 173
<0.1
.14 2.1
<0 5 19 0
4 8.2 8/19/85 174
<0.1
.06 0.6
<0 5 1.5 0
6 8.5 9/16/85 173
<0.1
.04 1.0
<0.5 2.5 0
4 7.1 10/14/85 173 0.1
.03 0.8
<0.5 1.4 0
2 7.9 11/8/85 174
<0.1
.06 0.9
<0 5 1.9 0
9 7.2 12/9/85 171
<0.1
.03 0.9
<0 5 2.7 0
4 8.4 12/23/85 162
.12 35 07
<0 5 1.5 3
4 6.8 2/7/86 150 0.5
. 16
<0.5
<0 5 1.4 13 3/21/06 149
<0.1
.'12 0.7
<0.5 2.2 14 4/19/86 149
<0.1
.12 07
<0 5 4.0 7
0 9
5/19/86 150 0.4
.11
<0.5
<0 5 1.1 11 7/9/86 139 *
<0.1
.09 0.6
<0.5 1.9 8
0 1
12.4 8/8/86 144 0.1
.25 1.1
<0.5 1.2 5
0 1
10.6 9/5/86 149
<0.1
.06 30
<0 5 2.2 35 0
1 11.5 Notes:
- analysis not performed (During post maintenance test runs, some analyses were deemed unnecessary.
- oil changed from Caprinus 40 to Nob 11 gard 450 (new vise limits 120-154)
- analysis capability acquired in January 1986 e.
?
k 4
ll
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-__.-e---,--
-, - -, - - - - - - - - - - - - - - - - - - - - = - - -
~ ' ' '
' ~ - - -
- ^ ""
Attmahmaat 1 Page 6 Table 2-1: EDG 11 Lube 011 Filter Samplo Analy;is Data Sample Deposited Metals in micrograms (by CTC) i Date Fe Cr Sn Al 3;.
En Notes c
5/8/85 19 0
0 59 to 5
8/14/85 11 3
6 81 8
9 12/18/85 22 6
21 74 16 1
1
(
1/27/86 57 11 67 291 43 7
2 4/5/86 31 7
33 18 20 6
9/11/86 7
0 0
6 4
4 Notes: (1) Some bearing distress observed in late December 1985 i
(2) Metallic particles were observed inside filter vessel.
t 9.
1 Table 2-2: EDG 12 Lube Oil Filter Sample Analysis Data f
Sample Deposited Metals in microg;ans (by CTC)
Date Fe Cr Sn Al Si Zn 5/8/85 18 2
4 71 12 0
8/14/85 15 1
1 123 13 0
12/13/85 24 2
6 80 26 3
9/18/86 4
1 0
5 2
2 h
h 1
}
... = =.
9 --
=--..: = =-.
= = = =: = :
=.
I
- Page 7 f.'*
Table 2-3: EDG 13 Lube Oil Filter Sample Analysis Data
.l Sample Deposited Metals in micrograms (b:r CTC)
Date Fe Cr an Al S;.
En Notes 6/7/85 17 4
1 109 20 1
11/5/85 16 2
3 13 44 8
1 1/22/86 33 4
72 248 18 9/25/86 94 33 146 25 126.
9 2
60 Notes:
(1) Upper connecting rod bearing (#3) fracture November 13, 1985 (2) Metallic particles were observed inside filter vessel.
)
l Table 2-4: EDG 14 Lube Oil Filter Sample Analysis Data g
Sample Deposited Metals in alcrograms (b:r CTC)
Date Fe Cr Sn Al 3;.
En 7/28/85 29 7
7 18 90 54
.11/7/85 28 8
8 14 100 35 r
4/17/86 139 56 28 47 63 1
l,,
9/4/86 150 22 54 73 72 8
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j, Attamhment 2 Pagg j W;,
.f Table of Contents
- h. 4 Figure Title (paraphrased)
Purpose h-1 Aluminum concentration (IR)
Demonstrates sensitivity in EDG 13 oil from 4/85 to 10/86 to 11/85 bearing failure after the event 2
Tin concentration (ER) in Demonstrates lack of EDG 13 oil from 4/85 to 10/86 sensitivity to 11/85 bearing failure 3
Einematic viscosity (F2) of ceneral trending EDG 12 lube oil from 4/85 to 10/86 4
Einematie viscosity (F2) of EDG 12 Demonstrates response to lube oil from 1/20/86 to 2/28/86 fuel inlaskage & corrective maintenance 5-12 Pentane insolubles concentration General trending (F2) and (ER) for EDG's 11-14 13
bearing stress a
14-15 Iron and pentane insolubles Demonstrates' lack of concentrations (ER) in EDG 13 sensitivity of analysis to oil after three successive bearing stress fast starts on 12/25/85 e.
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The EDG tailures In January,1985, triggered a couplete reevaluaticri of the EDG lubricating oil analysis program, since the original program provided no indication ot incipient tailure. Inproved sanpling consistency and expanded analysis techniques have been merged into a monitoring program that meets or exceede industry standards, and one which should provide useable intormation regarding the condition ot engine cmponents.
In Reterence 1, Detroit Edison conmitted to upgrading the EDG lube oil analysis program, with several specified requirements:
A.
Monthly oil samples will be drawn from the sump (dipstick tube) while the engine is operating and will be analyzed to determine metal concentrations. The results of these analyses will be trended for 18 months. At that time, it the evidence confirms that trending metal concentrations will predict or detect bearing failures, a permanent program will be established.
B.
Detroit Edison will perform a spectrographic analysis of lube oil filter media and any deposits that are found during the gaarterly replacement. ne results will be evaluated as a method of predicting bearing failures. If this evaluation indicates that a spectrographic analysis program is justified, a program wi11 be established.
This report is prepared at a time 18 months after the ce mitments took effect, and includes the requirei, evaluation of previous data, resulting in a proposed permanent prograc. Therefore, the above cmmitments have been satisfied. It is useful to review the actions that have been taken during the past 18 months to insure ccupliance with the stated requirenents.
A.
As stated in Reference 2, lube oil samples are taken from the shaft-driven punp discharge (i.e.
filter inlet), after steady state conditions are met, during monthly surveillance test runs. The sanples are split, and analyzed for natals at two different laboratories using different methods.
W e resulting metal concentrations have been trended for 18 months. A discussion of the two analyses methods and the trending evaluation follows, upon which is based a recmmendation to continue for another 18 month interval a sampling, analysis, and trending program, as a
Page 2 significant indicator of engine performance and reliability.
B.
As required, the lube oil filter media'have been sampled after filter changes. Each sample was examined for evidence of bearing distress, by visual inspection and spectrogra@ic' analysis for deposited metals. A discussion of the examination results 'follows upon which is based a' recommendation to discontinue the filter sampling and analysis portion of the inspections.
n e interim analysis program was provided in detail in Reference 2, as well as a preliminary review of the data.
At this point, 18 months of data are available for evaluatica and are presented in Attachment 1.
Significant observations, highlighted by trend plots provided in Attachment 2, include the following:
o No oil monitoring program will consistently predict the type of sudden breakdown experienced by EDG-13 in November 1985. To support this statement, it est be noted that an oil sanple and an oil filter sample were obtained and analyzed during the week prior to the-November 13. 1985 destruction of the #3 upper connecting rod bearing. No indication of incipient failure or distress was evident, even in retrospect. See Table 2-3 in Attachment 1 and i
Figures 1 and 2 in Attache:nt 2.
o Trending of viscosity results can provide useful information regarding fuel inleakage to the lube oil system. his was evident during December 1985 and January 1986 dien EDG 12 experienced significant inleakage. Se viscosity decrease per unit time during engine operation was relatively constant until the fuel leak was corrected. See Figures 3 and 4 in Attachment 2.
The analysis for pentane insoluble will be of o
negligible value when performed alone. Se analysis of the carposition of the insoluble material by anission spectroscopy, however, provides a useful measure of bearing stress.
During successive fast starts on EDG 13, the insoluble altaninum increased consistently, whereas insoluble iron and total insolubles did not change appreciably. Significantly, the analysis for soluble alumintan (Table 1-3) did not detect any altaninum, as perfonned by Cleveland
. Page 3 Technical Center, even during these conditions of maxinaan normal bearing stress.
[These points are demonstrated in Figures 5 through 15 in.]
o S e engine operating conditions and frequency
(<100 hrs / year) pose negligible stress on the oil quality. His is evident fran Tables 1-1 through 1-4 in Attachment 1, where total base number
('mN) results are presented. 'mN measures the oil's alkaline reserve, i.e. its ability to resist the effects from acidic combustion product input. After almost a year of service, with more han normal engine operating hours, the TBN is essentially at its original equilibrium value of 8.5 mg KOH/g oil.
o The deposited metals analysis of the lube oil filters was proposed in Reference 1 as a possible indicator of bearing wear / fatigue. -In both instances where a noticeable increase in metals deposited is evident from the data, the filters were removed from service after a bearing failure. However, in both instances, numerous metallic fragments were. observed prior to removing the filters from their vessel. On this basis, visual inspection of the filters is expected to be an equally valid indicator of bearing fatigue. % e spectrographic conpositional analysis will be discontinued on a regular basis, but reserved for the case where inspection indicates a possible bearing condition.
o Wear particle concentrations are measured by ferrographic techniques. This analysis appears to be sensitive to engine conditions, but more data are required before strict correlations can be responsibly drawn.
Based on them observations, adjustments to the trial lube oil / filter analysis program conducted over the past 18 months are justified. These modifications are:
o Deletion of on-site analysis for pentane insoluble concentration and viscosity, since these analyses are repeated at Engineering Research and Cleveland Technical Center.
o Deletion of soluble metals analysis by Cleveland Technical Center, since the insoluble netals analysis performed at Engineering Research is a better indicator of abnormal wear.
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Page 4 o
Addition of ferrographic analysis techniques, performed at Engineering Remarch, as a useful indicator of engine wear, both type and degree.
o Deletion of deposited metals analysis fran the lube oil filter sanples, to be replaced by visual inspection as an indicator of bearing distress.
Them changes are designed to concentrate available resources to produce and review valuable infornation regarding bearing and engine conditions. As a result of the adjustments, the lube oil analysis progran will consist of monthly oil samples drawn during the start-and-load surveillance test, analyzed at:
o Engineering Research for ferrography, pentane insolubles, and insoluble metals.
o Cleveland Technical Center for water, sediment, TBN, viscosity'and flash point.
The data resulting from these analyses will continue to be reported to Fermi 2 Chenistry for trend evaluation by cognizant personnel.