ML19330B410

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Forwards Followup to Re Auxiliary Feedwater Sys Flow Control Valves.No Quantifiable Failure Mechanism Will Affect Safe Operation of Flow Control Valves.Commitments in Util Are No Longer Necessary
ML19330B410
Person / Time
Site: Farley 
Issue date: 07/29/1980
From: Clayton F
ALABAMA POWER CO.
To: Varga S
Office of Nuclear Reactor Regulation
References
TAC-12391, TAC-12963, NUDOCS 8008040003
Download: ML19330B410 (21)
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$* kkbM" g hhh \\ L I.EoSUc*.Yr$'io.'ni MEN DE s "*5"*'"**'**"*" July 29,1980 Docket No. 50-348 U. S. Nuclear Regulatory Comnission Operating Projects Branch 1 Washington, D. C. 20555 Attention: Mr. Steve A. Varga FARLEY NUCLEAR PLANT - UNIT 1 AUXILIARY FEEDWATER SYSTEM (AFW) FLOW CONTROL VALVES

Dear Mr. Varga:

This letter describes actions taken subsequent to our letter of July 11,1980, on this subject. That letter outlined interim steps to be taken until resolution of the NRC concern of having solenoid valves for all auxiliary feedwater flow control valves powered by the "A" train DC power source. Attachment 1 provides a description of the following: 1. Existing FNP 125V DC system protection devices 2. Qualifications of the existing solenoids 3. Effect of potential battery charger failures on the operation of the AFW flow control valves 4. Testing program performed by Bechtel Power Corporation and Alabama Power Company on AFW flow control valve solenoid valves with coils identical to those installeu at the Farley Nuclear Plant 5. Effect of the failure mechanism of the solenoid valves on the AFW flow control valves It is the opinion of Alabama Power Company that this information substantiates that no quantifiable failure mechanism associated with the AFW flow control valve solenoid valves known at this time could affect the safe operation of the AFW flow control valves at the Farley Nuclear Plant. In order, however, to ensure reliability of these valves, Alabama Power Company will provide power supply train separation for the auxil-f ary feedwater flow control valve solenoid valves by January 1,1981. Additionally, Alabama Power Company will provide the following enhance-

  1. g ments to the reliability of the 125V DC Distribution System as follows:

0 8008040 O O 3

O T0: Mr. Steve A. Varga July 28, 1980 1. Install an additional overvoltage relay in the present DC over-voltage alarm to provide redundancy on the overvoltage alarm by September 1, 1980. 2. Record DC bus voltage once per shift effective immediately and, if during this logging the voltage is 10V DC above normal levels '(maximum level 141V), the AFW flow control valves (3227A, 32278, 3227C, 3228A, 3228B, and 3228C) will be stroked immediately and once per shift until the voltage is restored to the nonnal range (less than 141V). 3. The emergency power board Annunciator Response Procedure will be modified by August 1,1980, to enhance the operator's response with respect to AFW flow control valves operability to an over-voltage condition in the 125V DC distribution system. For a valid alarm the procedure will instruct the operator to stroke the flow control valves once per shift until the alarm condition clears. 4. Reinstitute battery equalization of Auxiliary Building batteries 1A and IB with the provision that the voltage be documented once per hour until completion. If an overvoltage condition similar to item 2 above should occur during equalization the same action described in item 2 will be implemented. Based on the four actions initiated to enhance reliability described above, Alabama Power Company feels that the commitments made in our letter to you dated July 11, 1980, are no longer necessary. It is our plan to discontinue the actions committed to in the July 11, 1980, letter when the four actions described above have been completed. If there are any questions concerning this item, please contact us. Yours very truly, A,Y 'LL F L. Clayton, Jr'., BDM/rt Attachments cc: Mr. R. A. Thomas Mr. G. F. Trowbridge l Mr. E. Reeves l Mr. W. H. Bradford l l l

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~ bc:.Mr. R. P. McD:nald' Mr. W. B. Shipman Mr. H. O. Thrash Mr. D. E. Mansfield Mr. O. D. Kingsley, Jr. Mr. R. L. George Mr. W. G. Hairston, III - Mr. O. Batte Mr. D. N. Morey Mr. A. A. Vizzi o i W d t L 5 i l i j 1 e f if,. i it 1

ATTACHMENT 1 To APC0 FNP Unit 1 AFW Letter of July 28, 1980 A. Sumary of f.ne 125V DC Distribution System The motor driven auxiliary feedwater pump discharge valves HV3227A, B and C and the turbine driven auxiliary feedwater pump discharge valves HV3228A, B and C are air operated, each one equipped with 2 solenoid valves in the air lines between the positioner and the valve diaphragm. The power supply for both solenoids of each valve is provided by 125V DC. Train A. The attached sketch (sheet No. 2) shows the power path, including breakers and fuses, between the 125V DC source and the subject solenoids. The 125V DC bus is supplied from the battery charger with the battery floating on the bus. The battery contains 60 lead-calcium cells electrically connected in series to establish a nominal 125V DC power supply. The battery is floated at 2.20V per cell, and the charger is adjusted to give an output voltage of 132V for floating the battery (the float voltage range of the charger is 118.2 - 139.5V). The equalizing charge voltage is adjusted at 138V to give an equalizing charge on a periodic basis. The DC output of the battery charger is monitored by an overvoltage relay set at 141V which provides a remote alarm (visual and audible) on the Emergency Power Board in the Control Room. Therefore, any voltage condition higher than the set value of the overvoltage relay will alert the operator and the necessary actions will be taken. The attached calculation sheet sketch (sheet No. 2) and single line diagrams C-177010, D-177082, D-177590 and D-177591 show the electrical paths to the solenoid valves. B. Sumary of Solenoid Construction and Tests Referring to the Auxiliary Feedwater System Piping and Instrument Diagram b-175007 the discharge flow control valves HV-3227A, B and C and HV-3228A, B and C fail open when the air is vented through the ASCo pilot solenoids on each valve. These solenoid valves are ASCo model HT 8320A108. The HT prefix (reference catalog sheet 16) designates a solenoid coil with a class H insulation. This is an industry standard high temperature designation. Class H insulation is designed for a maximum continuous coil t'emperature of 1800C. The cm.inuous duty coil temperature rise is 80 C. The solenoid 0 valves were specified to the valve manufacturer to be operable from 90 to 140 volts DC. The use of epoxy in the solenoid valves is minimized. By referring to the vendor catalog sheet 16 it can be seen that the coil is separated from the plunger by a fiberglass tube which has a minimum amount of epoxy for stiffness. The coil is interwoven with fiberglass thread and a minimum amount of epoxy is used as a binder. From looking at Figure 1 and Figure 2 of the vendor catalog sheet, there is no mechanism where coil insulation can melt and run into the valve body. Since the subject solenoids provide continuous operation from an actuating voltage of 90 - 140V DC, we do not see any conceivable situation that would prevent these solenoids from performing their function. ATTACHMENT 1 To APC0 FNP Unit 1 AFW Letter of July 28, 1980 Two field tests performed at Farley subjected three solenoid valves with HT coils similar to those of the AFW control valves to voltage spikes of 180V DC for an increasing duration up to five minutes and followed by a 24 hour test on continuous overvoltage of 248.5V DC with the valves beingF and the coilexercised eve 15 minutes. The ambient temperature during the test was 90 0 temperature stabilized at 219 F. There were no valve failures during either of the tests. Figure 1 is the test setup for the first test; Figure 2 is the test setup for the second test. The results are in the attached data tables. C. Summary of Battery Charger Findings Bechtel Power Corporation contacted Exide on June 14, 1980, to discuss possible failure modes of the Exide 3 Phase Battery Charger Model UPC 130-3-600 which is used on the 125V DC safeguards busses at Plant Farley. The conversation was prompted by' the NRC question in regard to this subject. The problem postulated by the NRC was a failure in the control circuitry of the charger which would result in the charger going to maximum DC output voltage. Exide indicated for a control unit failure, the maximum output voltage of the charger would be 144.5V DC. In anticipation of additional qu'estions from the NRC, the following areas of the charger design were explored with Exide. The 600V AC enters the charger through a thermal magnetic breaker which will protect the charger f. rom internal h7 short circuits and overloads. From the breaker the 600V AC enters the primary of the power voltage transformer (PVT). The PVT has a nominal primary voltage of 600V AC and a corresponding secondary voltage of 272V AC. From the secondary of the PVT the 272V AC is applied to silicon controlled rectifiers (SCR's). The SCR's are rated at 600V Peak Inverse Voltage (PIV). The filtered output of the SCR's is nominally 130V DC which cofresponds to 272V AC into the SCR's. A thermal magnetic breaker is utilized on the output of the charger to protect the charger from external short circuits and over-loads. The voltage regulation of the charger is i % for a variation of t 10% on the input voltage. Exide indicated that for input variations of > 110% on the input voltage, the charger will still provide regulation, but will not maintain the t % regulation. . l

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i \\ CLASS A MOLDED Call CLASS F MOLDED CCIL tos*C, ?NAtPERATURE Ct.A&s 1ss c. TT.MPERATultE C1.ASA f.- Epoxy f - - - Epoxy Encapsulation Encapsulation ..,__Wgnet W!re ,,,,_,,Wgnet Wirs 130*C. Class or better 200*C. Class or better - 3 s L'l Listed UL Listed - g . FuMCus Pecor s g$--600 Volt i s -600 Yon . FuMCus PRoor t . MotsTuRE PROOF Leads e MotsTuRE proof leads Nylon Bobbin . LOWER TEMP. Rise /WATr S----Epoxy Bothia . wioER OPERATING RANCC The following table "lustrates the temperature parameters of ASCO Coils: CLASS H Coll GENERAL TEMPERATURE LIMITATIONS AND THERMAL tso*c. TtwPsRATuRE ci. Ass CHARACTERISTICS OF ASCO SOLENCIDS AND ColLS Class p e., c; ass j insuunes suas ame maximes au.swaau TeTm. Trunnarearc 1 f.poxy. Pewtt seTPWT Wrapping s trnerepated saevs a tus*u r neu a ties u i 1 Al-220 or 6Colllutel Ortu Prsha-nee ,,,,, e,,,,,e 8 Pre. fin - FT Prehs - hi.:. n, -et eis - we. siu _ so HML Magnet (Class f & N for Hegner EM888 "8'I's for W Euess margie for Meer Ents marre for Meer Wire 220'C.J 9 7.".$"y " Nt"Es " '1$C. - NUEs " $c Se"T$' *a"g I ggg .} (BC*C. + 25'CJ = 0*C.@ (SC*C. + 25*CJ = 50*C. + 25*CJ = 75'C. ' q c 3CCM g,,,, g g p.,,la - F 8 Praha - N 8 f.- Rubber trw W.per waree new - twe. ein - tes-Silicone s Co*8f8d Pens,e m.ri a tuas m-Pe tw weer exess marsi.c.rw mew Y h "' E'" A**'sats or amtients or fluis tam-amments or f'see tamoers. frnpregna n C. + 25'C ) 5*5 25*~CJS0*1 600 Volt-Srsue ill Prehs - FF 200,C. (re, Nip, y,,,, n = - tre. e class INTERWOVEN CoNsTRuCTtoM Wests use tempe 3 e FuNCus P#ooF thras - 1FC. - G.PC. + 25'CJ = 0*C4 e RADIATION RESISTANT Srsue IV Prefis - MP Pre Ya a + wtDER cPERATiNC RANCE ess ma e far Wgter n1Y' s lao * + :s*CJ = 0*C@ IIstas: O as messores ty tse " Assistance Wetnas.* Allcoils supplied @ Essisawt rites at sa samat ts aricare of 25 C. ue be emeierve is ann.mer, with 18" long leads. @ ammint temarstwo we e.ruttr w*tm to ca.6 rtie n e temwnten we ut. C0ll CPERATING POWER CONSUMPTION AMPS _. volt. amp " holding" VOLTAGE RANGES Power consumption of solenoid valves (HOLDING) - voltage All coils are designed for inaustrial may be determined from the rating ( operating voltages and can be used in ASCO bulletins. For valves on A C Valves supplied for D4 service have 'i on the following voltage ranges: service, the watt rating, the volt-no "intush" current, as in the case ampere " inrush" and the voit-am* of A.C service. The amp rating can be determined by dividing the voit-pere " holding" are given. age into the D-C watt rating. l sam'T 8'r=d "**d The volt. amp " inrush" is the high AMPS = ** 'e'n"l'E '"E." ! EE '"a@e" momentary surge of current which voltage occurs at the moment an A-C Note: (1) When a valve has been ener. 24 22 24 s it-tw3 solenoid is energized. gized for a long period the solenoid en-120 1t4120 12 10.2 11 s closure becomes hot and cannct be 2e 2=>24o 24 a>2s The volt amp " holding" is the touched by hand except for an instant. uo se.uo no ic2.us centinuous rating after the initial This is a perfectly safe operating tem-t " inrush *" perature. Any excessive heating will be indicated by the smcking and buming All ASCO Valves are tested to operate The current rating for the " inrush" er i the con insulation. l a215. under the nominal, voltage and " holding" may be, determined (2) hn o$r' volt $ges irIob and are capable of operating for by dividing the voltage into the voit-ert o l shcrt periods at 1,0*'. over the nomi-amp rating. A by changing the coH; similarty. D4 nal voltage. For wider voltage ranges valves can be converted f:r etner voit-than shown above, a different coil AMPS _ volt-amp inrush, ages. When converting frem 4C to D-c d or vice versa, consult f actory for g~ or insulation system must be used. (INRUSH) ~ voltage instructions. s mem ASCO Valves 3, A0tamme Suttth Ca 50 54 Heaow heuerh== Perue= 1erm Om2. Tei. cam mm

Coil REPLACEENT

4. For A.C (alternating current) construction, renove dip washer and sliy Tore off eisetatent power supply. Fee A.C (Alesenseles Cerroso Cee.

yoks containing sprs;g washer coil and insulatang washers (2) off the structles. refer le Figere 2. Fee D C (D6reet Cerroso Coasaracties, refer to solenoid base sub-assembly. For D-C (direct current) construction. dip Figure 1. coil washers (2), insulating washers (2) and coil off the solenoid base sub-assembly. NOTE: lasulating washers (2) are omitted when a

1. Loosen cover screws (3) and remove cover with screws and nameplate molded coil is 6 sed.

ratached. Remove cover gasket. S. Unscrew solenad base sub-assembly with special wrench adapter sup-g

2. Remove retaining. clip. CAUTION: When metal retauung clip dis-plied in Spare Parts Kit (Wrench Adapter Order No. 206400). Remove )

engages, it will spring upward. housing. retainer gasket. retainer, body spacer, core anembly with core

3. For 4.C (Alternating Current) Construction. remove clip washer and spring and core guide (A.C construction only). Remove body gasket slip yoke contaaning spnns washer, insulating washers (2) and coil off from valve body.

the solenoid base sub-assembfy. For D-C(Direct Current) Construction.

6. Remove end cap or manual operator assembly (optional feature) body slip coil washers (2). insulating washers (2) and coil off the solenoid gasket disc spring, disc, disc hoider and disc holder pins (2).

b:se sub assembly. NOTE: Ipulating washers (2) are omitted when a

7. All parts are now accessable for cleaning or replacement. Clean aII in-molded coil is used.

ternal passageways thoroughly before valve reassemblysReplace *crn

d. Reassemble in reverw order of disassembly paying careful attention to or damaged parts with a complete Spare Parts Kit fdy best results.

Exploded views provided for identification and placement of parts. When installing a cornpiere Spare Parts Kit, it is recominended that the

5. Torque cover screws evenly in a ensacross manner to 10 inch. pounds coil and manual operator assembly (if present) also be re6 faced.

11.1 newton meters).

8. Reassemble in reverse order of &mwmbly paying careful attemion to CAUTION: Seleoeid mest be remy reassessbled as the beening sad laternal exploded views provided for identification and placement of parts.

parts are port of and complete the usagnetic circuit. Ptact sa laselating

9. Lubricate all gaskets (except cover gasket) with a light coat of Dow washer at each eed of cool,if required.

Corning's Type 200 Flusd. VALVE DISASSEMBLY AND REASSEMBLY

10. Install disc holder, disc disc spring, body gasket and end cap oc manul operator assembly (optional feature). If instalhng manual operator Depresserize volve and turn off electisest power supply Detervilae the co*

assembly, be sure stem is turned fully counterclockwise. Torque end struction Ibrass oc stainless siest body) of the valve being rebuilt sed follow cap or manual operator assembly to 90 2 10 inch-pounds [10.2 1.1 the instrections below. newton meters). BR ASS CONSTRUCTION (Refer to Fgure 2) II. Install disc holder pins (2)in the two small holes from the top of the

1. Disassemble valve in an orderly fashion paying careful attention to es.

g y, 'R by gasket and position core assembly with core spring and lac ploded views provided for identification of parts.

2. Loosen cover screws (3) and remove cover with screws and nameplate core guide (A-C construction only)into solesoid base sub assembly.

l

13. Posit:en solenoid base sub-assembly in housing and install retainer 3.

mov ret ning ti A TION: When metal retaining clip dis-gasket, retainer and body spacer at base of solenoid base sub assembly.

14. Install solenoid base sub-assembly using special wrench adapter pro-
4. or C (al a a ne t construction, remove clip washer and slip vided in Spare Parts Kit (Wrench Adapter Order No. 206400). Torque yoke containing spring washer, coil and insulating washers (2) off the solenoid base sub-assembly to 175 2 25 inch. pounds (19.8 2 2.3

$C a solenoid base sub-assembly. For D-C (direct current) constructior, slip ating current) construction, replace insulating washers ( c:il washers (2), insulating washers (2) and coil off the soleno:d be.se sub-assembly. NOTE: Insulating washers (2) are omitted, hen a (one at each end of coil). coil and spring wuher in yoke. Slip yoke oser solenoid base subassembly. Replace clip washer and retaining clip. For

5. bn ten ase sub assembly with special wrench adapter sup-D-C (direct current) construction, replace insulating washer, coil, in.

plied in Spare Parts Kit (Wrench Adapter Order No. 206400). sulating washer, coil washers (2) and retaining chp.

6. Remove housing. retainer gasket. retainer. core assembly with core
16. Replace cover gasket and housing cover. Torque screws evenly,ma spring and core guide (A-C construction only). Remove body gasket crisscross manner to 10 inch. pounds (1.1 newton meters].

e(" from valve body.

17. After maintenance, operate the valve a fu times to be sure of proper
7. Remove end cap or manual operator assembly (optional feature) body operation.

gasket. disc holder spring and disc holder sub-assembly.

8. All parts are now accessible for cleaning or replacement. C!can all in-ternal passageways thoroughly before valve reassembly. Replace worn er damaged parts with a complete Spare Parts Kit for best results.
n. x..

,3 When installing a complete Spare Parts Kit, it is recommended that the =an a"aa am coil and manual operator assembly (if present) also be replaced.

9. Reassemble in reverse order of disassembly paying careful attention to

=. exploded views provided for identification and placement of parts. s,....w3 w

  • l
10. Lubricate all gaskets (except cover gasket) with a light coat of Dow Corning's Type 200 Fluid.

II. Install disc holder subassembly, disc holder spring, body gasket and 'caaos cove.wwm 'a==* cw* end cap or manual operator assembly (optional feature). If installing a 7,',',0*C.7 S \\'h' manual operator assembly. be sure the stem is turned fully counter. clockwise. Torque end cap or manual operator assembly to 175 2 25 inch pounds (19.8 2 2.8 newton meters), s m=aa e*

12. Replace body gasket and position core assembly with core spring and

"* h*o"1"."T ** core guide (A.C construction only)into solenoid base sub assembly. Saa ^= =" e ung.u.

13. Position solenoid base sub-assembly in housing and install retainer
  • g" g= 88 gasket and retainer at base of solenoid base sub-assembly.

O em

14. Install solenoid base sub-assembly using special wrench adapter pro-vided in Spare Parts Xi (Wrench Adapter Order No. 206100). Tor, que solenoid base sub assembly to 175 2 25 inch. pounds. (19.8 2 2.8

,o.,W,","* coes,;7'b nswton meters). c';l !$. For A-C (alternating current) construction, replace insulating washers sv. uwe (one at each end of coil), coil and sprir 3 washer in yoke. Slip yoke over Q solenoid base sub-assembly. Replace clip washer and retaining clip. For 4O'gl,';58 I I ca.ou. 3., m. D-C (direct current) construction, replace insulating washer, cott in-

  1. N

.'ca ict'e= ms ni e..ou as sulating =asher. coil washers (2) and retaining clip. D'*88**'"*"'"*

16. Replace cover gasket and hous.ng cover. Torque screws evenly in a g*

4 crisscross manner to 10 inch-pounds [1.1 newton meters]. ame=e

17. After maintenance, operate the valve a few times to be sure of proper Eg s

p ecperation. C

v STAINLESS STEEL CONST81UCT10N (Aeser to Figure 31 1

x a..,, I. D:sassemble valve in an orderly fashion paying careful attention to ex-

  • d x ;s w*

ploded views provided for identification of parts.

2. Loosen cover screws (3) and remove cover with screws and nameplate c

a p I titached. Remove cover gasket. "'8 "oo - 4

3. Remove retaining clip. CAUTION: When metal retaining clip dis-engages. it will spring upward.

A S C O Valyes """"'2*"*"'" gg Finere 1. Showine D C (Dirvet Curreet) Ceestructions dUi0lTIGijC bWIICh CO. no . w snen % nom NW h. M o Amamm!t Sutch Ca m

[s.] [8 %d den a ecuNTussMattS Ea8 k. MOUNTING BRACKET gq g Wincass--e (OPTIONAL FEATURE) f O BRACKET MAY BE ROTATED 00 B9 {k - 3' $h TO ANY OF FOUR (4) POSITIONS, AT 90 INCREMENTS. 0 s I p 'I [u.C _ q -- TwottI umamme ask.ES em &0orEP m ao* D N """ "" OVER WITH SCREWS {3) AND g\\ x N / NAMEPLATE ATTACHED. f LJ SPECIAL WRENCH ADAPTER $ OVER GASKET $ FOR SOLENOID BASE IU TORQUE COVER SCREWS (31 WRDE EVENLY TO 10 :NCH.POUN05 W, "ETAINING CLIP $ [1.1 NEWTON METERS) CLIP W ASr4E R CD PARTS INCLUDED IN [/ N $ PARE PARTS KITS-X-YOKE N SnRINC W ASHE R SOLENOID BASE d \\ SUS. ASSEMBLY'E-N INSULATING W ASME R (OMITTED WHEN MOLDED TOROUE SOLENOID BASE g qd SUS. ASSEMBLY TO l O; 175 + 25 INCH POUNDS y; C0t t [19.8 2 2.8 NEWTON METERS] () 'NSULATING WASHE R N N / O N HOUSING (OMITTED MEN MOLDEO ,N COIL 15 USED) l RETAINER GASKET { ( NETAINER 1/2 NPS OR 3/4 NPT CONOuiT CONNECTION CORE GulOE$ CORE ASSEMBLY WITH J CORE GulOE ANO { l-CORE ASSEM8LY$ CORE SPRING $ ) COR(SPRING $ 800Y GASKET $ ] r-p.Q 8 N1 VALVE BODY j g (ADAPTOR PRESENT IN CONNECTION "1" ONLY FOR UNIVE RSAL OPER ATION) w C BODY GASKET $ TORQUE END CAP OR [ OISC HOLDER SUS. ASSEMSLYh MANUAL OPERATOR ASSEMSLY \\y TO 175 + 25 tNCH. POUNDS g (19 8 + 2.8 NEWTON METERS) OlSC HOLDE R SPRING $ g t' END CAP y = MANUAL OPERATOR ASSEMBLY (OPTION AL F E ATUR El Nulletie 8320 - Brass Bod) 9 1/4 NPT - A.C ( Alternating Current) Construction 4 % siertight Solenoid E.nclosure Shown. Feaure 2. For Emplosion. Proof / watertight Solenoid Enclosure. See Forrn No. V.5340. e Atnamcut Sm:th Ca...-..... C d1l at.%M f$ '.~._

e -A h O Q F TEST seTvF t FIGuRG 1 ?- L I T 125 Vdc ^ ~ LHq %k T.yyel scea J k..t ^ n3 We y u

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i.g-gs: 9 " . t; f.a'7 ._. [ __- _.... ,... ~ cow. 94 g.3.g:.wwgsA a 7Esr sETU P FIGURE 2 las Vd-ws v4 8,U<>$ 84 2.}!c>3 kk % T.yJ second hk f, 3,ve n ye. 1 vie e.:

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.,.. x ,-_...;;5 My W: Ley nk ;Z[ f-- j~_ ^ ** R ' f _..,-l.. n. - x- ~ ~ - FNP-1-ETP-180 DATA SEET 2 (Continued) [' TIl2 SV 1 SV 2 SV 3 INITIALS RDi/LRKS I h $~. o O 08. cit. Oft

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~ [ _._. w --,y, -l..;-S k d, Q M,4 Q NE FNP-1-ETP-180 DATA S)EET 2 l (continued) tit 2 SV 1 SV 2 SV 3 INITIAI.S REffARES //.00 OK nk - ok lo Rn

W DR ok Ok LORN
lo O/C ok OK wt?n
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FNP'l-ETP 180- ^ ' ~ ~ DATA SHEET 2 (Continued) i I i 51E SV 1 SV 2 SV 3 INITIALS RENARKS s I L 8 r ~ //. e

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