ML19257B529

Responds to IE Bulletin 79-15 Re Deep Draft Pump Deficiencies.Util Uses Ten Deep Draft Pumps & Ten in Unit Under Const.Pumps Mfg by Byron Jackson

ML19257B529
Person / Time
Site:	Farley
Issue date:	12/18/1979
From:	Clayton F ALABAMA POWER CO.
To:	NRC OFFICE OF INSPECTION & ENFORCEMENT (IE)
References
IEB-79-15, NUDOCS 8001160589
Download: ML19257B529 (15)

Text

. _ . _ _ _ .

N

• Alabama Power Company ,

600 North 18tn Street Post Office Box 2541 7

. Birmingham, Atabama 35291 Telephone 205 323-5341 m-L';;oi'sc'e' ,Sh AlabamaPower f >. . *2O the southem erectne sprem y

, December 18, 1979

[

l Docket Nos. 50-348 and 50-364 NRC IE Bulletin 79-15 j- /

/

. Office of Inspection and Enforcement U. S. Nuclear Regulatory Commission Washington, D.C. 20555 Attn: Director, Division of Reactor

- Construction Inspection

Dear Sir:

In response to IE Bulletin 79-15, Deep Draf t Pump Deficiencies, Alabama Power Company submitted a letter dated July 18, 1979. Our response stated that we did not have any of the pumps in use at Farley in the listed systems.

. Subsequent to that response, further review has determined that Farley Plant has deep draft pumps similar to those identified by the bulletin in safety related application. Attached is our supplemental response to IE Bulletin 79-15 addressing the items requested for these pumps.

Yours very truly,

~

F. L. Claytonj Jr.

, . FLCJr/JGS:bhj , , _

7 .~

Attachment cc: Mr. R. A. Thomas ,

Mr. G.

Mr. M.

F.

D.

Trowbridge Hunt, Region II (w/ Attachment)[

j ff 6 'Q

 > J.           .-             Office    of   Inspection and Enforcement

}:.}.*:._ $ .. .

                               .Re~ actor Operations Inspection          (w/ Attachment)                        ,

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IE BULLETIN 79-15

1. The number of deep draft pumps similar to those shown in Figures 1 and 2 utilized in safety related applications in each facility.

Response: 10 Unit 1 10 Unit 2 (Under Construction)

2. Manufacturer, model, capacity and plant application.

Response

Unit 1 Unit 2

~~

Manufacturer: Byron Jackson Johnson Model: - 30 KXE, Single Stage 30 X 18 Type A, 2 Stage 27cc Capacity: 9750 GPM @ 175 TDH 9750 GPM @ 175 TDH Plant Application: River Water Makeup River Water Makeup To Th'e To the Cooling Pond Cooling Pond Manufacturer: Byron Jackson Johnson Model: 32 RXL-28 KXL, Two stage 30 X 18 Type A, 2 Stage 27cc Capacity: 9000 GPM @ 210 TDH 9000 GPM @ 210 TDH Plant Application: Plant Service Water Plant Service Water

3. Overall dimensions of Pumps.

Response

Byron Jackson Johnson River Service River Service Total Height: 51'-4 7/8" 45'-2 1/8" 51'-2" 45'-6 1/2" Pump Height: 45'-9 5/8" 40'-2" --- Min. Submergence: 4'-6" 5'-0" 4'-6" 5'-0" Pump length below ~ ' ' -

                     ' floor:         .        41'-7 5/8" 36'-0"     41'-4b"        35'-9"
                  ~Dia. of Suction-                                                         ~

Bell: 2'-10" 2'-10" 2'-6" 2'-6" Dia. of Pump Column: 20" 0.D. 20" 0.D. 20" O.D. 20" 0.D.

4. Summary of startup, testing, and routine maintenance history.

     . , ,   . . .o .                                                    -
                                                                                                ~
                                                                                                      ,(
                .' Response:         J'
                                                                                ~ ~                 -

Model 30 KXE -- BJ River Water Pumps - 171'66.x5i.,, 2 A. River Water Functional and Flush (Startup Preop)

1. Flush R.W. lines -

2. Test Minimum Flow System

3. Test Operation of R.W. System

4. Test R.W. Pumps ,. ,

a. Pump Control Verification

b. Pump lube and cooling system operation c c. Pump normal operation (1) Running current for each phase (2) Bus voltage (3) Discharge pressure (4) Discharge flow (5) Dead head pressure (6) Pump vibration (7) Bearing temperatures (8) Motor Winding RTD readings

5. . Calibration and loop checks B. FNP-1-STP-25.1 & 2 (Monthly) Inservice

.__                                      FNP-1-STP-25.3 & 4 (Annual) Inservice

1. Monthly

a. Differential pressure measurement

b. Upper and lower motor oil reservoir levels

c. Mounting flange vibrations

2. Annual

a. Differential pressure

b. Upper and lower motor oil reservoir levels

     ,_.                                        c. Mounting flange vibrations

d. Bearing temperatures

3. Test reviews (monthly)

                                               - #4 RWP vib. high 12/11/77, 1/11/78, 6/13/78, 9/13/78, 11/18/78, 6/19/79
                                               - #5 RWP vib. high 6/13/78
                                               - #2 RWP vib. high 12/15/78

__ - #8 RWP vib. high 12/11/77, 12/27/77, 1/13/78, 4/11/78, 4/15/78, 10/2/78, 12/15/78

                                               - #9 RWP vib. high 6/13/78, 7/20/79, 7/22/79
                   ,      f, ,                 - #10 RWP'.vib. high 9/13/78, 10/17/78               .

41 Test Reviews (Annual) ,

                                               - #8 RWP vib.~high 4/15/78 C.      FNP-1-GMP-5.0 Vibration measurements                             766-252           .
                                        .FNP-1-GMP-9.0 General pump inspection                                  ,

s

               ,       , . _ _[,   ,,
                                       . FNP-1-GMP 21.0 Coupling ' Alignment
                            . ; r:n         .                . .,                                                  -
                                                   ~

Maintena'nce History

                           *"D.
                                               #4 RWP - packing adjustments & vibration problems
                                               #5 RWP - packing adjustments
                                               #8 RWP - packing adjustments & vibration problems s-                      .                                                                .

                              #9 RWP - packing adjustments
                              #10 RWP - packing adjustments & vibration problems Model 32 RXL - 28 KXL - BJ Service Water Pumos A. Service Water Preop

1. Verify pump minimum flow bypass

2. Verify design flows for Cold Shutdown conditions

3. Verify design flows for normal operation

4. Verify individual SW pump design and operation

a. Running current for each phase

b. Bus voltage

c. Discharge pressure

d. Pump vibration

 --                           e.       Pump rpm

f. Bearing temperature

g. Dead head pressure

5. Pump lube and cooling system operation B. FNP-1-STP-24.1 & 2 (Monthly) Inservice FNP-1-STP-24.3 & 4 (Annual) Inservice

1. Monthly

a. Total Dynamic Head

      -.                      b.      Upper and lower oil reservoir levels

c. Flow rate

d. Mounting flange vibration

2. Annual

a. Total Dynamic Head

b. . Upper & lower oil reservoir levels

c. Flow rate

 --                          d.. Mounting flange vibration

e. Bearing temperature

f. Discharge pressure ,

  .                              s                          .    -

3. Test reviews (monthly) -

                             - #1D SWP vib. high 11/18/78                                                   .
                             - #E SWP vib. high 11/18/78, 11/28/78                              j f { g. l} } }..

4. Test ~ reviews (annual) '

s - ., - .' - . , Eh . F. .;1,/ - . -(No' discrepancies .>-

                                                                                   -   ,          -               +      -

77 . C. FNP-1-CMP-5.0 Vibration Measurements FNP-1-GMP-9.0 General Pump Inspection ,7 , FNP-1-GMP-21.0 Coupling Alignment . V ' 4

                                                                                          .h.             .
                                                                                         .,.e C,

• a , . n ~ * . s. -

D. Maintenance History

                            #1A SWP - packing adjustments,1/18/79: Major inspection, lift setting
                            #1B SWP - packing adjustments, lif t setting
                            #1C SWP - packing adjustments, lube / cooling flow, lif t setting
                            #1D SWP - packing adjustments, minor vibration problem, lif t setting
                            #1E SWP - packing adjustments, minor vibration problem, lif t setting Model 30 X 1B Type A, 2 stage - Johnson River Water and Service Water Pumps These pumps have been operated some but the preoperation test has not yet been performed.

5. Operational problems and major repair efforts.

 --                  Response:

Unit 1

                     #10 RWP:      11/78 - Put on spare bowl and sent original bowl assembly to BJ for repair.
                     #9 RWP:       12/78 - Repaired on site.
                     #4 RWP:         2/79 - Put repaired bowl from #10 RWP on and sent suction bell to BJ.
                     #5 RWP:         9/79 - BJ has original bowl assembly, will return in + 2 weeks.

November, 1978 -

                                               #10 pump had high vibration. The pump was removed and disassembled. The suction bearing was seized to the shaf t and had rotated in its housing.       The line bearings were worn out of tolerance. The vanes on the impellor were cracked on the leading edge at the hub.

The bowl was repla:ed, all bearings were replaced and several shafts were replaced. December, 1978 - #9 RW pump was disassembled due to high vibration and

  --                                           experience with #10.

Same general condition was observed. The wear ring

                       .              .      fclearances were satisfactory. Hence the bowl was not replaced. The impellor was replaced.

February, 1979 - f4 RW pump was disassembled due to experience with #9

                     ,                        and #10. Same general condition was observed. Bowl
                                             . assembly was replaced.
                   !August,1979 -         -
                                             '#5 RW pump was disassembled. Same general condition
         ];      ; (,           s

[ #' . was observed. The impellor had experienced sever c

                 , ,                           tation at some thme. The cracking in the vane area um again present. The impellor had been repaired at some time before - it showed signs of brazing, etc.        The bowl assembly was replaced.

April, 1979 - 1A pump was disassembled based on experience with R.W. ,,_ _ .: . Bearings were out of' tolerance at the bottom.5 The lubrication line to lower bearing was clogged 99%. Bearings were replaced. ,.

        ,.                                                  _,_                   1-766~254

Unit 2 Unit still under construction.

6. The longest interval that each pump has been available for operation without corrective maintenance. Identify the number of cycles of operation during this interval, the duration of each cycle and the operating model(s) (recirculation, rated flow, etc.). Identify the longest continuous operation at or near rated flow conditions for each pump and the status of the pump operability at the end of the run.

Response

Unit 1 River Water Pumps QSP25P004-B Longest interval of availability: 12/6/77 to 2/21/79 Cycle Duration Mode 1 1 day, 4 hours Rated Flow 2 2 drys, 16 hours 3 4 days, 16 hours 4 0 Jays, 8 hours 5 ".2 days, 8 hours

        ~-'                                                                              "

6 0 days, 20 hours 7 0 days, 4 hours 8 0 days, 8 hours 9 0 days, 8 hours 10 2 days, 12 hours 11 0 days, 8 hours 12 8 days, 4 hours 13 0 days, 8 hours 14 0 days, 4 hours . 15 0 days, 12 hours cl6 3 days, 4 hours 17 1 day, 12 hours

j. l.l ' .

                                                 .18       4 days, 20 hours e,                                              .19       11 days, 4 hours                                                 .

20 27 days, 4 hours -" - 21 5 days, 20 hours 22 1 day, 4 hours 23 3 days, 20 hours 24 0 days, 16 hours

                                              -*25.        O days, 8 hours
  !O5I-5
                                            ' .'. 2 6 ~    2 days, 20 hours     -
      "' ~,           1 .

27 0 days, 8 hours " -

                                                                                                                ~
                                                                                                                  ~

28 0 days, 16 hours - 29 0 days, 16 hours 30 ,2 days, 4 hours " 4 days, 4 hours 31 32 0 days, 12 hours

                                                 .33:
                            -                              O days, 8 hours                               ,,

e-

                                                   -..                                                                                                                    1766 ~2~55 s                                   .                                                          .
                                               '                                                                              ^
                                          ,           ..                           ' ' 2     .*

Cycle Duration Mode 34 1 day, O hours Rated Flow 35 10 days, 4 hours 36 " 0 days, 8 hours 37 " 5 days, 16 hours 38 4 days, 16 hours 39 0 days, 16 hours " 40 2 days, O hours " 41 " 7 days, 12 hours 42 " 0 days, 8 houra 43 " 2 days, 16 hours 44 41 days, 20 hours " 45 " 0 days, 8 hours 46 2 days, 12 hours 47 0 days, 4 hours " 48 " 3 days, 20 hours 49 17 days, 8 hours 50 3 days, 0 hours " 51 42' days, O hours 52 0 days, 4 hours " 53 21 days, O hours 54 " 25 days, 8 hours 55 3 days, 12 hours " Pump S/D for major maintenance on the bowl assembly. QSP25P005-B Longest interval of availability: 12/8/77 to beyond 8/13/79 Cycle Duration Mode 1 2 days, 3 houts Rated Flow 0 days, 20 hours " L2

                                          .3 0  days, 8 hours             "

4 1 day, 4 hours " 5 0 days, 16 hours 6 1 day, 4 hours "

                                 ._.         7.          3  days, 16 hours            "

8 _ 0 days, 4 hours 9 0 days, 4 hours " 10 10 days, 8 hours " 11 0 days, 8 hours " 12 0 days, 4 hours " 13 .3. days, 12 hours " _. . ;'. 14 2' days, 16 hours '"_. ,. .  : ,.

                       ;Uf
                               ' " ' "15-2t days,~8 hours            '"

16' .5 days, 20 hours " 17 1 day, 4 hours " 18 1 day, O hours "

                 .                        19             2  days, 12 hours            "

20 0 days, 20 hours 21 ' O days, 20 hours " 22  : 1 day,12 hours -

                                                                                                    '1/66 ,256.-

Cycle Duration Mode 23 1 day, 8 hours Rated Flow 24 1 day, O hours 25 1 day, 20 hours 26 0 days, 20 hours 27 6 days, 20 hours 28 1 day, O hours 29 5 days, 4 hours 30 0 days, 8 hours 31 50 days, 12 hours 32 0 days, 20 hours 33 1 day, 8 hours 34 21 days, 16 hours 35 5 days, 20 hours

  --                                                 36          1 day, 12 hours f                                                     37          0 days, 20 hours 38          1 day, 4 hours 39          0 days, 16 hours 40          1 day, 8 hours 41          1 day, 4 hours                                                              '

42 1 day, 8 hours 43 1 day, 4 hours 44 3 days, 20 hours 45 1 day, 0 hours 46 0 days, 16 hours 47 0 days, 8 hours 48 " 0 days, 8 hours 49 0 days, 4 hours 50 0 days, 12 hours 51 0 days, 12 hours 52 0 days, 12 hours, " 53 1 day, O hours 54 14 days, 12 hours 55 13 days, 20 hours 56 3 days, O hours

    --                                               57          1 day, O hours 58          1 day, o hours 59          1 day, 8 hours
                                                   '60         .5 days, 4 hours
                                                    .61          2. days, 4 hours               "-
                                                   , 62                                         "

3 days, 20 hours 3 63 7 days, 16 hours 64 1 day, 16 hours 65 l' day, 20 hours " 66 0 days, 4 hours 7 .5 days, O hours

     +. 5 . -

v, 4_=gg

                                                -6 268'67-     .
                                                              ;2-! days, 8 hours                "       .

2 days, 16 hours a t,

                       .c4           ,
                                                   ~69                                                                       -

70 1 1 day, 20 hours - 71 7 days, 16 hours 3 72 18 days, 8 hours _ o . r ,

                                                            ' 0 days, 8 hours                   "

_ 73 17166 ' 25 ~/ " s,

• 5- ~ ~

          ' 9_                                                ,,
                                                                                                          ~
                                                                          . , . ,           e.                               . . - - . . . .

Cycle Duration Mode 74 3 days, 4 hours Rated Flow 75 0 days, 12 hours 76 6 days, 20 hours 77 0 days, 16 hours 78 2 days, 12 hours 79 0 days, 8 hours 80 " 0 days, 4 hours 81 " 0 days, 8 hours 82 1 day, 16 hours 83 " 1 day, 16 hours 84 0 days,.16 hours 85 0 days, 4 hours 86 1 day, 12 hours __ 87 0 days, 20 hours 88 " 0 days, 12 hours 89 0 days, 12 hours 90 " 0 days, 12 hours 91 8 days, 0 hours 92 1 day, 8 hours 93 4 days, O hours 94 0 days, 4 hours 95 9 days, 8 hours 96 0 days, 12 hours 97 1 day, 4 hours 98 0 days, 12 hours

      ._,                                     99             3 days, 4 hours 100               3 days, 8 hours                  "

101 0 days, 16 hours " 102 0 days, 4 hours " 103 14 days, 8 hours " 104 11 days, 4 hours 105 5 days, 12 hours " 106 2 days, 4 hours " 107/ 1 day, 8 hours 108 0 days, 20 hours " _ 109 35 days, 8 hours. 8/13/79 is the cutoff for this research

            ..          ,          -       ,.         .                            3              . .           -
                                       - QSP25P008-A
                                          ' Longest interval of availability:      12/1/77 to beyond 8/13/79 Cycle                      Duration            Mode
 .                           '~.                _

, f  ;. , .jl; O days, 4 hours Rated Flow

                     , [,.sf ^', - - ' .; ,(2 7              0 days,.8: hours                                    '

[ . ., .. .i - _'; >.  : 3: "I day, 20 hours " -

                                                                                                      ~
                                                                                                                                -~*-
                                          '4  .

23 days,.0 hours '-

                                              .5             0 days, 16 hours
                          ~~

2 days, 0 hours "

                                          . x .,6                .
                                          ~~?77~            1 day, 16 hours
                                            .;                      .

ec .P76~6:258

                                                                                                         ,;                             ' .J                      .                .n
                           . - .                        '..,,                                       .       4

        -                          Cycle                Duration        Mode 8        0 days, 4 hours    Rated Flow 9        0   days, 8 hours 10                                  "

0 days, 20 hours 11 0 days, 12 hours 12 0 days, 16 hours 13 1 day, 4 hours 14 0 days, 4 hours 15 0 days, 4 hours 16 23 days, 4 hours 17 18 days, 4 hours 18 0 days, 8 hours 19 6 days, 12 hours 20 0 days, 4 hours 21 '6 days, O hours 22 " 0 days, 12 hours 23 0 days, 4 hours 24 0 days, 12 hours 25 1 day, O hours 26 1 day, 8 hours 27 5 days, 16 hours 28 0 days, 16 hours 29 1 day, O hours 30 2 days, 8 hours 31 6 days, 16 hours 32 1 day,~4 hours 33 1 day, 8 hours 34 4 days, O hours 35 0 days, 8 hours " 36 0 days, 12 hours " 37 0 days, 16 hours 38 0 days, 8 hours 39 0 days, 8 hours 40 0 days, 4 hours " 41 0 days, 12 hours 42 0 days, 12 hours " 43 2 days, 20 hours " 44 0 days, 12 hours (9 , , 55 4 7 days, 8 hours . . ' ; (, - f46 0 days, 16 hours " '

                                   '47            0 days, 20 hours 48          1 day, 12 hours         "

49 5 days, 16 hours 50- 1 day, 20 hours

                                   ; 51.          O days, 4 hours         "

+;f ' -

                                                 'O days, 16 hours        "
                       ..          .' 52 :

3';' : t O' days, 8 hours ~"

                              .V(*
                                                                                                                   ~

f .vi", 5 y

                                . ;.54'           7 days, 12 hours                     .

2 days, 8 hours "

                                     ~55
                                                                         ~"

56. 8 days, O hours 57- 1 day, 16 hours 0 days, 4 hours "

58 59 0 days, 4 hours _.,-z .

                                                                                . 4766 259'
                            -          s           .

g . _ 9 _. _

Cycle Duration Mode 60 33 days, O hours Rated Flow 61 5 days, O hours " 62 0 days, 12 hours " 63 0 days, 4 hours " 64 0 days, 16 hours " 65 0 days, 20 hours " 66 0 days, 8 hours " 67 0 days, 12 hours " 68 0 days, 4 hours " 69 0 days, 12 hours " 70 0 days, 4 hours " 71 1 day, O hours "

                  .                            72           0 days, 12 hours                  "

73 0 days, 16 hours "

                                             '74            0 days, 4 hours                   "

75 6 days, 12 hours " 76 2 days, 8 hours " 77 1 day, 16 hours " 76 2 days, 20 hours " 79 1 day, 8 hours " 80 0 days, 16 hours " l 81 1 day, 12 hours " 82 0 days, 16 hours " 83 1 day, 4 hours " l

84 0 days, 4 hours "

      --                                        65           1 day, O hours                    "

86 1 day, 16 hours " 87 0 days, 8 hours " 88 6 days, O hours " 89 0 days, 6 hours " 90 0 days, 8 hours " ' 91 3 days, 8 hours " 2 days, 4 hours 92 " 93 1 day, 4 hours "

94 1 day, O hours "

!' 95. 8 days, 16 hours " J 96 2 days, 0 hours " 97 'l day, 8 hours . 3; 98- 2 days, O hours d '~ 8 days, O hours F . . 99 ~ " Y 100 1 day, 12 hours " 101 , 9 days, 12 hours I - 8/13/79 is the cutoff for this research. c ' G . g~ ,'_ 'OSP25P009-A a 'i M ' lb:h ' 4 ~. longest int'erval of avail. ability: 12/1/77 to'12/7/78.u  :  :. :

                                          . ';                  . ,'              .                      ..

Q _ Mode Cycle Duration y '

                                                         ~; F'                                                '

fj 1 . 10 days, 4 hours Rated Flow ,B " - 0 days, 8 hours 2 G _ 3 0 days, 20 hours p y

                                                                                         ;         -

ysg: yso :

.s e tG                                                                                                    "

Of r ' ->; a . . L0i 4 .. .~. ~- 4 wW hh "y"&

Cycle Duration Mode 4 1 day, 12 hours Rated Flow 5 0 days, 4 hours 6 0 days, 12 hours 7 9 days, 12 hours 8 0 days, 4 hours 9 0 days, 16 hours 10 16 days, 4 hours 11 34 days, 16 hours 12 0 days, 8 hours 13 2 days, 12 hours 14 0 days, 16 hours 15 0 days, 8 hours 16 1 day, 12 hours J' 0 days, 12 hours 18 0 days, 4 hours 19 0 days, 8 hours 20 1 day, O hours

                                       '21          1 day, 0 hours 22          0 days, 8 hours 23                                       "

0 days, 8 hours

                                       ~24          5 days, 16 hours 25          1 day, 12 hours 26          21 days, 20 hours 27          2 days, 16 hours             "

28 18 days, 20 hours " __., 29 3 days, 8 hours 30 0 days,16 hours 31 0 days, 8 hours " 32 0 days, 8 hours 33 0 days, 4 hours " 34 " 0 days, 12 hours 35 0 days, 12 hours 36 0 days, 4 hours " 37 1 day, O hours " 38 0 days, 12 hours 39 2 days, 12 hours 40 0 days, 8 hours , _41 7 days, 8 hours

                    . n;        ., ., ;4 2          0 days, 12 hours             "
                                      '43:          0 days, 12 hours 44          0 days, 16 hours 45          0 days, 20 hours 46          0 days, 4 hours 47          3 days, 12 hours
                  , _ .              _ 48       ., _,1, day, 20 hours
           ~
                             . . i 4 9         11 day, O hours                                 -
 -5 '
                                   -50,-      -

1 day, O hours'- " ., . 7 b 62b.}.

                                      $51           1 day, 4 hours               "           !

16 days, O hours " 52

                                   ^                                                                               '

53 14 days, 12 hours "

                                      .54          J3 days, 12 hours Pump S/D for major maintenance on the bowl assembly (repaired on site).
                                                                  '    ~
                                                                    ;.   ,

f, .' . .

QSP25P010-A Longest interval of availability: 12/1/77 to 11/25/78 Cycle Duration Mode 1 0 days, 4 hours Rated Flow 2 4 days,16 hours 3 0 days, 8 hours 4 1 day, 8 hours 5 0 days, 20 hours 6 0 days, 12 hours 7 0 days, 8 hours 8 21 days, 20 hours 9 0 days, 12 hours 10 0 days, 16 hours

                                               ' 11                     1 day, 16 hours 12                   0     days,       16 hours 13                   0     days,       8 hours 14                  2      days,       8 hours 15                   0     days,       8 hours 16                   2     days,       12 hours 17                   0 days, 4 hours                         -

18 0 days, 4 hours 19 0 days, 20 hours 20 0 days, 12 hours 21 1 day, O hours 22 1 day, 4 hours

     ~~                                                                                                     "

23 1 day, 16 hours 24 6 days, O hours 25 0 days, 4 hours 43 days, 20 hours "

                                                  '26 27                   2 days, 8 hours 28                   1 day, 20 hours 29                   8 days, 20 hours 30 0 days, 4 hours 31                   2 days, 20 hours
                                                  .32                    0 days, 16 hours                                     ,

Pump S/D for major maintenance on s-

                                                           -bow 1; assembly.                                                                        . _ , -
                                                                          .:                                               1766'262
                                                                          . Service Water Pumps Q1P16P001-A ~                 ,
                                            ', Longest interval of availability:                        4/3/78 to 2/20/79
                -        * ^
          .                           < i. ^ .                       .. '..-
  . , _ w :'      N . ';]' :   ,

9 5' Cycle, #

                                                                        ,' -      Duration'
                                                                                                      ~

Mode  :' -

. c y ,.  ;.-

                                                   1 8 days, 8 hours               Rated Flow
                                                      '2'           " 195 days, 4 hours
                                                     '3             . 32 days, O hours 63 days, 12 hours                  "

4 S/D to replace packing

                                                                                                                                          ~
                    ..;-                  -

s

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                                                    -                    .                     e                                       ,M
                           '                                               ~

s ,  ;;;p... - .~ -

 .-.               . , s4..      %.-    . . c4         4 . .             :. ~ , . . , , . .    .a..,,     ,       ,   '*,,,.,e
                                                                                                                                     ,y..            g, g , , , _

Q1P16P001-B Longest interval of availability: 4/4/78 to 8/2/79 Cycle Duration Mode 1 9 days, 12 hours Rated Flow 2 " 0 days, 16 hours 139 days, O hours " 3 4 " 9 days, 8 hours 5 114 days, 16 noars 6 44 days, 16 hours 7 48 days, 8 hours 8 37 days, 16 hours __ S/D to check and adjust impeller list setting. QlP16P001-C Longest interval of availability: 12/1/77 to 5/5/79 Cycle Duration Mode 1 86 days, 20 hours Rated Flow 2 "

                                                          .        O days, 20 hours 3                                           "

0 days, 4 hours 4 " __. 0 days, 12 hours 5 0 days, 4 hours 6 " 0 days, 8 hours 7 1 day, 8 hours " 8 34 days, O hours " 9 0 days, 8 hours 10 0 days, 8 hours " 11 1 day, 4 hours 12 15 days, 16 hours __ 13 0 days, 8 hours 14- 1 day, 4 hours " 15 29 days, O hours 16 32 days, 12 hours

                                               .17                 0 days, 12 hours 18                 0 days, 12 hours                                       -

19 20 0 days, 12 hours 9 days, 8 hours

                                                                                              "                    g- }g} .

21 0 days, 20 hours

         -                                      22-                5 days, O hours                                    ,
                                              ;23s                 28 days, 20 hours          "        -
                             'f,,1,f 't                            0: days,.4 h'ours 2 4 , . , ',                           _                 ,.
                               '^A '                                                          "

251 6~ days, 4 hours u-

26 O days, 4 hours

                                             ; 27. :               0' days, 4 hours
                                              ~28'                 0 days, 12 hours 1 da , 4 hours             "

29 30 0 days, 8 hours _ > 31 67 days, 12 hours

                                            ' 32 ,                 8 days, 4 hours               -        "

S/D to rep. ace packing

                                                                          .                          -o          ,

l' '

                                                                                                       ,x        .

QlP16P001-D Longest interval of availability: 4/5/78 to 6/25/79 Cycle Duration Mode 1 16 days,16 hours Rated Flow 2 149 days, 20 hours 3 51 days, 20 hours 4 " 0 days, 4 hours 5 120 days, 12 hours 6 15 days, 16 hours 7 59 days, 4 hours 8 - 20 days, 8 hours S/D to replace packing

                                     .QlP16P001-E Longest interval of availability: 4/6/78 to 8/2/79 Cycle                Duration                            Mode 1            77 days, 8 hours                    Rated Flow 2            279 days, O hours                          "

3 , 10 days, O hours 4 " 61 days, 4 hours 5 24 days, 8 hours " 6 4 days, O hours " 7 10 days, 4 hours 8 " 8 days, 16 hours S/D to check and adjust impeller lift setting. Unit 2 Unit still under construction. Files have been established to collect the identified items listed in the

                    ' bulletin. An evaluation will be conducted within 60 days of this letter to identify any actions needed to improve performance and/or reliability .                                .

of these pumps.

                                                                                                                                         ~
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