ML20202F945

Proposed Tech Specs,Deleting Table 3.3-11, Fire Detection Instrumentation & Providing NRC Control in Accordance w/10CFR50.59 & 50-71.Justification & Significant Hazards Consideration Encl

ML20202F945
Person / Time
Site:	Sequoyah
Issue date:	04/07/1986
From:	TENNESSEE VALLEY AUTHORITY
To:
Shared Package
ML20202F899	List: ML20202F892 ML20202F945
References
NUDOCS 8604140248
Download: ML20202F945 (33)

Text

__

o .

ENCLOSURE 1 PROPOSED TECHNICAL SPECIFICATION CHANGES SEQUOYAH NUCLEAR PLANT UNITS 1 AND 2 (TVA SON TS 66)

CHANGE NO. I FIRE DETECTION INSTRUMENTATION TABLE 3.3-11 DELETION 8604140248 860407 PDR ADOCK 05000327 P PDR

INSTRUMENTATION FIRE DETECTION INSTRUMENTATION LIMITING CONDITION FOR OPERATION 3.3.3.8 As a minimum, the fire detection instrumentation for each fire detection zone chru- :- 725' ? ? shall be OPERABLE.

des;yeted la appropriate plantserveillence ins +ructie$)

l l APPLICABILITY: Whenever equipment prntected by the fire detection instrument is required to be OPERABLE.#

ACTION:

With the number of OPERABLE fire detection instrument (s) less than the minimum number OPERABLE requirement:cf !;L 2.2

l

a. Within I hour establish a fire watch patrol to inspect the zone (s) with the inoperable instrument (s) at least once per hour, unless the instrument (s) is located inside the containment, then inspect the containment at least once per 8 hours9.259259e-5 days <br />0.00222 hours <br />1.322751e-5 weeks <br />3.044e-6 months <br /> or monitor the containment air temperature at least once per hour at the locations listed in Specification 4.6.1.5.

b. Restore the inoperable instrument (s) to OPERABLE status within 14 days or, in lieu of any other report required by Specifica-tion 6.6.1, prepare and submit a Special Report to the Commission pursuant to Specification 6.9.2 within the next 30 days outlining the action taken, the cause of the inoperability and the plans and schedule for restoring the instrument (s) to OPERABLE status.

c. The provisi . of Specifications 3.0.3 and 3.0.4 are not applico;!e.

SURVEILLANCE REQUIREMENTS 4.3.3.8.1 Each of the above required fire detection instruments which are accessible during operation shall be demonstrated OPERABLE at least once oe,r 6 months by performance of a CHANNEL FUNCTIONAL TEST. Fire detection which is .wa> not accessible during plant operation shall be demonstrated OPERABLE l by the performance of a CHANNEL FUNCTIONAL TEST during each COLD SHUTDOWN exceeding 24 hours2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br /> unless performed in the previous 6 months.

4.3.3.8.2 The NFPA Code 720 supervised circuits supervision associated with the detector alarms of each of the above required fire detection instruments shall be demonstrated OPERABLE at least once per 6 months 4.3.3.8.3 The non-supervised circuits between the local fire protectiun panels and actuated equipment shall be demonstrated OPERABLE at least once per 6 mnnths.

The fire detection instruments located within the containment are not required to be OPERABLE during the performance of Type A Containment Leakage Rate Tests.

SEQUOYAH - UNIT 1 3/4 3-50

t  !

0} fS 3/43 n tirouyh I/9.nslywe bee,, dr/tfe) it4uoW - U.d!T I 3lq 3 59

TABLE 3.3-11

(

_c..-

I FIRE DETECTION INSTRUMENTS

, Minimum Instruments cerable

-Z e Instrument Location Ionization Photoelectric / Thermal, Infrared 235 rl. Rod Dr. Eqpt. Rm. El. 759 4 236 Ct . Rod Dr. Eqpt. Rs. E1. 759 4 237 Mech. qpt. Rm. El. 749 1 l g 238 Mech. E t. Rm. E1. 749 1 241 480-V XFH . IA El. 749 3 242 480-V XFMR 1A E1. 749 3 1 243 480-V XFMR Rm. B E1. 749 3 244 480-V XFMR Rm. 1B 1. 749 3 249 125-V Batt. Rm. I E 749 250 125-V Batt. Rm. I El. 49 1 g

251 125-V Batt. Rm. II El. 7 252 125-V Batt. Rm. II E1. 749 1

1

(

V

', 253 125-V Batt. Rm. III E1. 749 1

.W 254 125-V Batt. Rm. III E1. 749 1 '

255 125-V Batt. Rm. IV E1. 749 1 256 125-V Batt. Rm. IV E1. 74 1 257 480-V Bd. Rm. IB El. 74 I

258 480-V Bd. Rm. 1B El. 9 4 259 480-V Bd. Rm. 1A El 749 4 260 480-V Bd. Rm. 1A . 749 4 .

153 Add. Eqpt. Bldg. E1. 740.5 4 155 Refuel Rm. E1. 734 19

~

~

156 RB Access . E1. 734 2 .

157 RB Access m. E1. 734 2 160 SG B1wd Rm. E1. 734 4

~

427 125V B t. Rm. V El. 749 2 428 125V att. RM. V El. 749 2

~

SEQU YAH - UNIT 1 3/4 3-59

~

. ( . . .

L.

INSTRUMENTATION TABLE 3.3-11 (Continued)

' FIRE DETECTION INSTRUMENTS e

p , Minimum Ins uments Operable Zon Instrument Location Ionization Photodectric Thermal Infrared 161 S B1wdn. Rm. E1. 734 4 162 EGT Rs. E1. 734 3 163 EGTS E1. 734 3 164 EGTS Fit A E1. 734 1 165 EGTS F1tr. E1. 734 1 166 EGTS Fitr. B 1. 734 1 167 EGTS Fitr. B E1. 734 1 172 Mech. Eqpt. Rm. E 734 1 173 Mech. Eqpt. Rm. E1. 34 1 176 480-V Shtdn. Bd. Rm. 1 E1. 4 2 4\ '

188 480-V Shtdn. Bd. Rm. 2A1 1 734 2 17' 480-V Shtdn. Bd. Rm. 1A1 734 2 189 480-V Shtdn. Bd. Rm. 2A E1. 34 2 178 480-V Shtdn. Bd. Rm. 2 El. 7 2 190 480-V Shtdn. Bd. Rm. 2A2 E1. 734 3 179 480-V Shtdn. Bd. . 1A2 E1. 734 2 191 480-V Shtdn. Bd Rs. 2A2 EL. 734 3 180 480-V Shtdn. . Rs. 181 E1. 734 192 480-V Shtdn Bd. Rm. 281 E1. 734 2 181 480-V Sht . Bd. Rs. 181 E1. 734 2 193 480-V S dn. Bd. Rm. 281 E1. 734 .2 182 480-V htdn. Bd. Rm. 182 E1. 734 3 Id4 480 Shtdn. Bd. Rm. 282 El. 734 2 183 4 -V Shtdn. Bd. Rm. 182 El. 734 3 195 80-V Shtdn. Bd. Rm. 282 E1. 734 2 18 6.9-KV Shtdn. Bd. Rm. A E1. 734 6

\

SEQUOYAH - UNIT 1 3/4 3-60

TABLE 3.3-11 (Continued)

FIRE DETECTION INSTRUMENTS Fir Minimum Instru nts Ooerable Zon Instrument Location Ionization Photoeledric Thermal Infrared 185 6. KV Shtdn. Bd. Rm. A E1. 734 6 186 6.9-K Shtdn. Bd. Rm. B El. 734 6 187 6.9-KV tdn. Bd. Rm. 8 E1. 734 6 4 196 125-V Batt. Bd. Rs. I E1. 734 1 197 125-V Batt. . Rm. I E1. 734 1 198 125-V Batt. Bd. . II E1. 734 1 199 125-V Batt. Bd. R II El. 734 200 125-V Batt. Bd. Rm. I El. 734 1 201 125-V Batt. Bd. Rm. II El. 734 1 202 125-V Batt. Bd. Rm. IV E 734 203 125-V Batt. Bd. Rm. IV E1.

1 1

h

( 204 Aux. CR E1. 734 205 Aux. CR El. 734 2

2 206 Aux. CR Inst. Rm. lA El 734 1 207 Aux. CR Inst. Rm. lA . 734 1 208 Aux. CR Inst. Rm. 1 E1. 734 209 Aux. CR Inst. Rm. B E1. 734 1 214 Mech. Eqpt. Rm. 1. 732 5 215 Mech. Eqpt. R . E1. 732 5 216 CR F1tr. A . 732 i 1 217 CR Fitr. E1. 732 1 218 CR Fitr B El. 732 1 219 CR F1 r. B E1. 732 1 SEQUOYAH - UNIT 1 3/4 3-61 1

..--,__c - ,. - - , . , - , _ .

____=

TABLE 3.3-11 (Continued)

FIRE DETECTION INSTRUMENTS -

Fire Minimum Instruments O rable Zone strument Location Ionization Photoelectric Jfermal Infrared 220 Main E1. 732 25 22i Red. St . Vault El. 732 2 222 Red. Stor. Vault El. 732 2 223 PS0 Engr. Sh El. 732 1 224 PS0 Engr. Shop cl. 732 1 225 Relay Bd. Rm. El. 732 13 226 Electric Cont. Bds. El. 732 11 227 Oper. Living Area El. 732 7 228 Oper. Living Area El. 7 8 229 Main Cont. Bds. 9 298 Common Main CR Bds. EL 732 9 (

230 Aux. CR Bds. L-4A, 4C, llA & 1 El. 732 9 {g\Vg 296 Aux. CR Bds. L-48, 40, & 118 1. 2 6 114 Waste Packaging Area E1. 7 3 115 Waste Packaging Area El. 06 116 Cask Loading Area El. 06 2 117 Cask Loading Area E 706 2 118 New Fuel Storage ea E1. 706 2 119 New Fuel Stora Area El. 706 2 120 Aux. Bldg. G Trtmt. Fitr. El. 706 1 121 Aux. Bldg. as Trtat. Fitr. E1. 706 124 Addition Equip. Bldg. Ei. 706 6 132 Ventil ion & Purge Air Ra. El. 714 3 133 Ven ation & Purge Air Rm. El. 714 3 134 A . Bldg. AS-All, Col. U-W, El. 714 7 SEQUOYAH - UNIT 1 3/4 3-62

TABLE 3.3-11 (Continued)

FIRE DETECTION INSTRUMENTS hire Mini num Instruments perable Zone ' Instr ent Location . Ionization Photoelectric / Thermal Infrared 135 Aux. Bldg. AS-All, Col. U-W, El. 714 7 136 Heating & Ve t. Rm. E1. 714 4

~

137 Heating & Vent. Rm. E1. 714 4 140 Hot Instr. Rm. E 714 1 141 Hot Instr. Rm. El. 14 1

142 Aux. Bldg'. Al-A8, Col. Q-U, El. 714 143 Aux. Bldg. Al-A8, Col. -U, E1. 714 12 144 Aux. Bldg. A8-A15, Col. Q , E1.

145 Aux. Bldg. A8-A15, Col. Q-U, . 714 4 9 9

h 146 N2Storage Area, E1. 706 4 387 Turbine Cont. Bldg. Wall E1. 70 18 98 Cntmt Purge Air Fitr. E1. 690 2 99 Cntet Purge Air F1 ., E1. 690 2 102 Pipe Gallery, E . 690 103 Pipe Gallery 1. 690 4 106 Aux. Buil 'ng, E1. 690 8 107 Aux. 8 ding, E1. 690 8 108 Radi Chemical Lab. Area, El. 690 3 109 R io Chemical Lab. Area, El. 690 3 t

l

.(

SEQUOYAH - UNIT 1 3/4 3-63

r t

. .s TABLE 3.3-11 (Continued)_

FIRE DETECTION INSTRUMENTS Fire Minimum Instruments Operable Mone Instrument Location Ionization Photoelectric Thermal Infrared 110 Aux. Bldg. Al-A8, Col. Q-U, El. 690 10 111 A . Bldg. Al-A8, Col. Q-lf, E1. 690 10

( 112 Aux. ldg. A8-A15, Col. Q-U, E1. 690 9 113 Aux. B . A8-A15, Col. Q-U, El. 690 9 123 Volume Co . Tank Rm. lA, E1. 690 1 125 Volume Cont. 'ank Rm. lA, E1. 690 1 I

48 Corridor, Contr Bldg. El. 669 4 49 Corridor, Control dg. El. 669 4 50 Mech. Equip. Rm. Col. 1, E1. 669 2 51 Mech. Equip. Rm. Col. C1, E1. 669 2 ,

52 Mech. Equip. Rm. Col. 3, E 669 2 q 53 Mech. Equip. Rm. Col. 3, E1. '9 2 54 250-V Batt. Rm.1, El. 669 3 55 250-V Batt. Rm. 1, E1. 669 3 56 250-V Batt. Bd. Rm. 1, E1. 66 '

57 250-V Batt. Bd. Rm. 1, El. 69 2

]!I ,k's 58 250-V Batt. Bd. Rm. 2, . 669 2 /"'

59 250-V Batt. Bd. Rm. , E1. 669 2 60 250-V Batt. Rm. 2 El. 669 3 61 250-V Batt. Rm 2, E1. 669 3 62 24-V & 48-V att. Rm. El. 669 3 63 24-V & 4 V Batt. Rm. El. 669 3 64 24-V 48-V Batt. Bd. Rm. E1. 669 2 65 24 - & 48-V Batt. Bd. Rm. E1. 669 2 66 cmmunications Rm. El. 669 4 s Communications Rm. El. 669 4 68 Mecn. Ecuio. Rm. El. 669 2 s

~

SEQUOYAH - UNIT 1 3/4 3-64

TABLE 3.3-11 (Continued)

FIRE DETECTION INSTRUMENTS e

pg[, MinimumInstrumentsOperable/

Zone Instrument Location Ionization Photoelectric Therm [ Infrared 6 Mech. Equip. Rm. El. 669 2

70 . Bldg. AS-All, Col'. W-X, E1. 669 5 71 Aux. Bldg. AS-All, Col. W-X, E1. 669 5 72 Aux. F Pump Turbine IA-5, El. 669 1 73 Aux. FW P p Turbine 1A-5, E1. 669 1 76 S.J. & Charg g Pump Rms. E1. 669 5 77 S.I. Pump Rm. El. 669 1 78 S.I. Pump Rm. 1B, 1. 669 1 79 Charging Pump Rm. 1C, El. 669 1 80 Charging Pump Rm. 18, E 669 1

( 81 Charging Pump Rm. 1A, E1. 9 1 88 Aux. Bldg. Corridor Al-A8, E 669 8 89 Aux. Bldg. Corridor Al-A8 El. 6 8 90 Aux. Bldg. Corridor A8- 15, E1. 66 8 91 Aux. Bldg. Corridor 8-A15, El. 669 8 92 Aux. Bldg. Corri r Col. U-W, E1. 669 4 93 Aux. B1dg. Cor idor Col. U-W, El. 669 4 94 Valve Gall , El. 669 2 95 Valve G ey, El. 669 2 39 Cont. pray Pump 1A-A, El. 653 2 40 Co . Spray Pump 18-B, E1. 653 2 43 HR Pump 1A-A, El. 653 2 RHR Pump 18-B, E1. 653 2 47 Aux. Bldg. Corridor, E1. 653 10 I.

SEQUOYAH - UNII 1 3/4 3-65

< TABLE 3.3-11 (Continued)

' FIRE DETECTION INSTRUMENTS Fire ne Instrument location '

Minimum Instruments Operable 26 Aux. Instr. Rm. El. 685 Ionization Photoelectric Thermal ~_ Infrare 8

t 268 .

Instr. Rm. El. 685 269* Com ter Rm. El. 685 9 4

270 Comput Rm. E1. 685 276 Intk. Pum g Sta. E1. 690 & 670.5 15 354 Upr. Compt. olers, E1. 778 352 Lwr. Compt. Coo 4

s, E1. 693 4

356 -RCP 2, El. 693 357 RCP 2, El. 693 2*

360 RCP 1, E1. 693 2 361 RCP 1, E1. 693 2*

364 RCP 3, El. 693 2 365 RCP 3, E1. 693 2*

368 RCP 4, E1. 693 2 369 RCP 4, E1. 693 2*

372 Reactor 81dg. Annulus 2 18 373 Reactor Bldg. Annulus 18 1 Diesel Gen. Rm. 28-8, ' . 722 5

2 Diesel Gen. Rm. 28 , El. 722 5

• 3 Diesel Gen. Rm. -8, El. 722 4 Diesel Gen. 5

. 18-8, El. 722 5 Diesel Ge Rm. 2A-A, E1. 722 "$ $(,. 5 6 Diesel en. Rm. 2A-A, E1. 722 k, 5 7 Die Gen. Rm. lA-A, E1. 722 8 5 esel Gen. Rm. lA-A, E1. 722 5

• This change is effective upon completion of

the associated modification.

i SEQUOYAH - UNIT 1 3/4 3-66

I I

i TABLE 3.3-11 (Continued)

FIRE DETECTION INSTRUMENTS

e

~ ~ ~ ~

Minimum Instruments Operable r

Zo Instrument Location Ionization Photoelectric Thermal Infrarfd 3 L e Oil Storage Rm. E1. 722 1 10 Lube il Storage Rm. E1. 722 1 11 Fuel Oi Transfer Rs. E1. 722 12 Fuel Oil T nsfer Rs. E1. 722 1 13 Diesel Gen. C ridor, E1. 722 6 14 Air Intake & Exh st Rm. 2B, E1. 740.5 9 15 Air Intake & Exhaus Rm. 1B, E1. 740.5 9 l

16 Air Intake & Exhaust 2A, El. 740.5 9 l 17 Air Intake & Exhaust Rs. , El. 740.5 9 18 Diesel Gen. 2B-B Relay Bd. . 722 3

'(

19 Diesel Gen. 18-B Relay Bd. E1. 22 3 4\

20 Diesel Gen. 2A-A Relay Bd. E1. 72 3 21 Diesel Gen. 1A-A Relay Bd. E1. 7 3 22 Diesel Gen. Board Rm. 2B-8, E 722 2

~

23 Diesel Gen. Board Rm. 2B-B 1. 722 2 24 Diesel Gen. Board Rm. 1 , Elt 722 25 Diesel Gen. Board Rm 1B-8, E1,. 722 2 26 Diesel Gen. Board . 2A-A, E1. 722 2 l

27 Diesel Gen. Bo d Rm. 2A-A, El. 722 2

( 28 Diesel Gen. card Rm. lA-A, E1. 722 2 29 Diesel G . Board Rm. lA-A, E1. 722 2

- 30 Cable preading Rm. C7-Cll, E1. 706 14 31 Ca e Spreading Rm. C7-C11, E1. 706 14 32 able Spreading Rm. C7-C11, E1. 706 14 Cable Spreading Rm. C7-C11, E1. 706 14 34 Cable Spreading Rm. C3-C7, El. 706 14 35 Cable Spreading Rm. C3-C7, E1. 706 14

/

k SEQUOYAH - UNIT 1 3/4 3-67

~

. .s bi TABLE 3.3-11 (Continued)

FIRE DETECTION INSTRUMENTS

.pg Minimum. Instruments Operable Zone Instrument location Ionization Photoelectric Thermal Infrared 149 Cabl Spreading Rm. C3-C7, E1. 706 15 150 Cable S eading Rm. C3-C7', E1. 706 15 126 Fuel Trans r Valve Rm. E1. 706 , 2 127 Fuel Transfer alve Rm. El. 706 2 147 A8GTS filter E1. 14 1 148 ABGTS filter E1. 71 1 245 480-V xfmr. Rm. 2A El. 49 3 246 480-V xfmr. Rm. 2A El. 74 3 247 480-V xfmr. Rm. 28 El. 749 3 248 480-V xfmr. Rm. 28 El. 749 261 480-V Bd. Rm. 2A El. 749 3

4 yh  :-

( .

262 480-V Bd. Rm. 2A El. 749 4 263 480-V Bd. Rm. 28 E1. 749 264 480-V Bd. Rm. 28 E1. 7 4 122 Add. Eqpt. Bldg. El 706 & 717.5 6 128 Fuel Transfer V ve Room E1. 706 2 FI 129 Fuel Transfer alve Room E1. 706 2 273 Computer . Corridor 3 1

\

SEQUOYAH - UNIT 1 3/4 3-68

INSTRUMENTATION C) FIRE DETECTION INSTRUMENTATION -

LIMITING CONDITION FOR OPERATION s.3.3.8 As a minimum, the fire detection instrumentation for each fire detection zone 2: n '- T:bl: 3.3--11 shall be OPERABLE. l desy=ted in apprep/.4h p lant serveillance insfractie*) .

APPLICABILITY: Whenever equipment protected by the fire detection instrument is required to be OPERABLE.#

ACTION:

f With the number of OPERABLE fire detection instrument (s) less than the minimum number OPERABLE requirement: of T ule 3.3 11-l

a. Within 1 hour1.157407e-5 days <br />2.777778e-4 hours <br />1.653439e-6 weeks <br />3.805e-7 months <br /> establish a fire watch patrol to inspect the zone (s) with the inoperable instrument (s) at least once per hour, unless the instrument (s) is located inside the containment, then inspect the containment at least once per 8 hours9.259259e-5 days <br />0.00222 hours <br />1.322751e-5 weeks <br />3.044e-6 months <br /> or monitor the containment air temperature at least once per hour at the locations listed in Specification 4.6.1.5.

b. Restore the inoperable instrument (s) to OPERABLE status within 14 days or, in lieu of any other report required by Specifica-tion 6.6.1, prepare and submit a Special Report to the Commission pursuant to Specification 6.9.2 within the next 30 days outlining C' the action taken, the cause of the inoperability and the plans and schedule for restoring the instrument (s) to OPERABLE status.

c. The provisions of Specifications 3.0.3 and 3.0.4 are not applicable.

SURVEILLANCE REQUIREMENTS 4.3.3.8.1 Each of the above required fire detection instruments which are accessible during operation shall be demonstrated OPERABLE,at least once per 6 months by performance of a CHANNEL FUNCTIONAL TEST. Fire detection which is ase not accessible during plant operation shall be demonstrated OPERABLE by

[

the performance of a CHANNEL FUNCTIONAL TEST during each COLD SHUTDOWN exceeding 24 hours2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br /> unless performed in the previous 6 months.

4.3.3.8.2 The NFPA Standard 720 supervised circuits supervision associated with the detector alarms of each of the above required fire detection instru-ments shall be demonstrated OPERABLE at least once per 6 months.

4.3.3.8.3 The non-supervised circuits between the local fire protection panels and actuated equipment shall be demonstrated OPERABLE at least once per 6 months.

The fire detection instruments located within the containment are not required to be OPERABLE during the performance of Type A Containment Leakage Rate Tests.

L SEQUOYAH - UNIT 2 3/4 3-59

9 e

g o

• l l

0A} es 3lq 3-60 tktcugh 3/1 3-47 l Int l) ten dtlettk.

I l

se:nne - u.vir2 3/q 3-60

~

[ D. O ~,

u; 1ABl.E 3.3-11 (Continued)

<a .

Ej FIRE DEIECTION INSIRUMENIS FIRE MINIMUM INSTRUMENTS OP BLE E ZONE INSTRUMENT LOCATION Ionization Photoelectric hermal Infrared na 30 Cable Sprea ' g Rs. C7-Cll, El. 706 14 31 Cable spreadin Rm. C7-C11, El. 706 14 32 Cable Spreading C7-Cll, El. 706 14 ,

33 Cable Spreading Rm. -Cll, El. 706 14 34 Cable Spreading Rm. C3- , El. 706 14 35 Cable Spreading Rm. C3-C1, I. 706 14 .

41 Cont. Spray Pump 2A-A El. 65 2 ,

42 Cont. Spray Pump 28-B El. 653 2 h 45 RilR Ptmap 2A-A El. 653 /

46 HilR Pump 28-B El. 653 2 10 47 Aux. Blaig. Corridor, El. 653 10

" 4 48 Corridor, Control Bldg. El. 669 Y' . 49 Corridor, Control Bldg. El. 669 4 .

53 54 250-V Batt. Rm. 1, El. 669 55_ 250-V Batt. Rm. 1 El. 669 3 56 250-V Batt. Bd. Rm. I, El. 669 2 57 250-V llatE. Bd. Rm. 1, El. 6 2 58 250-V Batt. Bd. Rm. 2, El 69 2 59 250-V Batt. Bd. Rs. 2, . 669 2 60 250-V Batt. Re. 2. E 669 3 61 250-V Batt. Rs. 2 1. 669 3 62 24-V & 48-V Bat . Rm. El. 669 3 63 24-V & 48-V t. i m. El. 669 3 64 24-V & 48- Batt. Bd. Rm. El. 669 2 65 24-V & -V Batt. Bd. Re. El. 669 2 66 Commi scations Re. El. 669 4 67 Co unications Re. El. 669 4 68 =ch. Equip. Rm. El. 669 2 69 Hech. Equip. Rm. El. 669 2 70 Aux. Bldg. AS-All, Col.W-X, El. 669 5 Aux. Bldg. AS-All, Col.W-X, El. 669 5

_ TABLE 3.3-11(Coutinued]

flHE DETECIl0N INS 1RilHlNIS s -

MINIMUM INSTRUMENTS OPERABLE e FIRE INSTRUMEN1 l0CA110N lonization Photoelectric Therm infrared ZONE G _

74 Aux. fWPT 2A- El. 669 1 75 Aux. IWPI 2A-5, . 669 1 S1 & Chru Pap Rms. I 669 5 82 83 SI Pump Rm. 2A , E l . 6 I 84 St Pump Hm. 211, El. 669 1 85 Chrg. Pump Rs. 2A, El. 669 1 ,

86 Chrg. Pump Hm. 211, El. 669 1 81 Chrg. Pimip Rm. 2C, El. 669 1 88 Aux.111d 9. Corridor Al- Ali, El. 669 8 -

89 Aux. Bldg. Corridor Al-AB, El. 669  !! M -

90 Aux. lildg. Corridor A8-A15, El. 669 L/

91 Aux. 11 1 :19. Corridor A8-A15 El. 669 8 R 92 Aux. llidg. Corridor Col. U-W, El. 669 4 -

" Aux. Bldg. Corridor Col. V-W, El. 669 4 93 Y 96 Valve Galley, Elev. 669 10 97 Valve Galley, Elev. 669 2 100 Cont. Purge Air Filter, El. 690 2 101 Cont. Purge Air filter, El. 69 2 104 Pipe Galley, El. 690 4 105 Pipe Galley, El. 690 4 106 Aux. Blt19 ., El. 690 8 107 Aux. Bldg., El. 690 8 108 Radio Chemical L . Area, fl. 690 3 -

109 Radio Chemica ab. Area, El. 690 3 110 Aux. Illdg. -A8, Col. Q-U, El. 690 10 111 Aux. lild . Al-A8, Col. Q-ll, El. 690 10 112 Aux. dg. A8-A15, Col. Q-il El. 690 9 113 Au- 111d9 . A8-A15, Col. Q-il, E l . 690 9 ~

114 aste PLg. Area, El. 706 3 115 Waste PLg. Area, El. 706 3 116 Cask loading Area, El. 706 2 1 Cask loading Area, El. 706 2

^

/

\

/

O Q ~,

h IABLE 3.3-11 (Continued) 5 F1RE DETECTION INS 1RIMENTS

lE ,

MINIMIM INSTRUMENTS RABLE 5 FIRE Infrared INST ENT LOCATION Ionization Photoelectric 1hermal Q ZONE 118 New fuel Storage Are E1. 706 2 119 New f uel Storage Area. . 706 2 120 ABGIS filter, El. 714 1 ,

121 ABGIS Filter, El. 714 1 122 Add. Eqpt. Bldg. , El. 706 & 71 6 126 fuel Transfer Valve Re., E1. 106 2 -

fuel Iransfer Valve Rs. . El. 706 2 '

127 128 fuel Iransfer Valve Rm., El. 706 129 fuel Iransfer Valve Rm., El. 706 2 130 Vent. & Purge Air Re., El. 706 3 131 Vent. & Purge Air Rm., El. 706 3 m 134 Aux. Bldg. AS-All, Col. U-W, El. 714 g 135 Aux. Bldg. AS-All, Col. V-W, E1. 714 7 -

138 Ileat. & Vent. Rm. , E l. 714 4

'I 139 Ileat. & Vent. Rs., E1. 714 4 0 140 llot Instr. Hm., El. 114 1 141 llot Instr. Rm., El. 714 1 142 Aux. Bldg Al-A8, Col. , El. 714 12 143 Aux. Bldg. Al-A8, Co Q-U, El. 714 12 144 Aux. Bldg. A8-A15, ol. Q-0, E1. 714 9 145 Aux. Bldg. A8-A , Col. Q-U, Lt. 714 9 146 N2 Storage Ar , El. 706 4 147 ABGIS Filt , El. 714 1 148 ABGIS f' er, El. 714 1 149 Cable preading Rm. C3-C7, El. 706 15 150 Ca e Spreading Rm. C3-C7, El. 706 15 151 i Room 2A, EI. 690 1 152 VC1 Room 2A, El. 690 1 155 Refuel Rs. El. 734 19 15 RB Access Rm. El. 734 2 9 RB Access Rm. El. 734 2

TABLE 3.3-11 (Continued) v, FIRE DETEC110N INSTRDHENIS

(( ,

IE x

MINIMUM INS 1RDMENTS'0PERA __

• flRE lonization Photoelectric Thefmal_ Infrared c- 70NE INSTRllHINI 10CA110N

4 160 SG Blwdn. Hm. El. 734

. 734 4 l 161 SG lilwdn. Rm.

3 162 IGIS Rm. f l. 134 3

163 [Gls Rm. El. 734 1 164 fGIS Iilter A, El. 73 1

165 [GIS I ilter A, El. 734 -

1 166 EGIS filter B, El. 734 1 167 IGIS filter B, El. 734 1/4 Mech. Iqpt. Hm. El. 734 '

175 Mech. Iqpt. Hm. El.734 1 te 480-V SD Bd. Rm. lAl, El. 734 2 6- 176 ta y,.

177 1/8 4U0-V SD Bd. Hm. lAl, El. 734 480-V SD Bd. Hm. lA2, El. 734 480-V SD Bd. Rs. IA2, El. 734 2

2 2

j) -

1/9 480-V SD Bd. Rm. 181 El. 734 2 180 181 480-V SD Bd. Rm. 181 El. 734 3

182 480-V SD Bd. Rm.1112 El. 73 3

183 480-V SD Bd. Rm. 102 El. 4 6.9KV SD Bd. Rm. A El. 24 6 184 6.9KV SD Bd. Hm. A . 734 6 18S 6.9KV SD Bd. Rm. El. 734 6 186 6.9KV SD Bd. R . B El. 734 6 187 480-V SD Bd m. 2A1 El. 734 2 188 480-V SD d. Rm. 2Al E l. 734 2 189 480-V Bd. Rs. 2A2 El. 734 3 190 SD Bd. Rm. 2A2 El. 734 3 191 4 81 192 0-V SI) Ud. Rm. 2111 E l. 734 2 480-V 50 Bd. Hm. 281 El. 734 2 193 480-V SD Bd. Rm. 282 El. 734 2 194 l' 480-V SI) Bd. Rm. 282 El. 734 2

m ,

P g 1ARIL 3.3-11 (Continued)

FIRE DiTEC110N INSTRitt1ENIS E

FIRE 5 ZONE STRUMENT LOCATION Ionization ~Photnelectric MINIMUM INSTRUMENTS Thermal Infrared OPERABLE U

co 196 125-V Batt. B . I, El. 734 1 197 125-V Batt. Bd. I, E1. 734 1 198 125-V Batt. Bd. Rm. , E1. 7,34 1 199 125-V Batt. Bd. Rm. II, 1. 734 1 200 125-V Batt. Bd. Rm. III, . 134 1 201 125-V Batt. Bd. Rm. III, El. 34 1 202 125-V Batt. Bd. Rs. IV, El. 73 1 ,

203 125-V Batt. Bd. Rm. IV, E1. 734 1 204 Aux. CR E1. 734 2 205 Aux. CR El. 734 2 R

210 Aux. CR Inst. Rs. 2A, E1. 734 s 211 Aux. CR Inst. Rm. 2A, E1. 734 1 Y 212 Aux. CR Inst. Rs. 28 El. 734 1 -

$ 213 Aux. CR Inst. Rs. 28 El. 734 1 216 CR Filter A, El. 732 217 CR filter A El. 732 1 218 CR Filter B, El. 732 1 219 CR Filter 8, El. 732 1 220 Main CR, El. 732 25 221 Rcd. Stor. Vault E1. 732 2 222 Rcd. Stor. Vault El. - 2 223 PSO Engr. Shop El 32 1 224 P50 Engr. Shop, . 732 1 225 Relay Bd. Rs 1. 732 13 226 Elec. Con Bds. E1. 732 11 227 Operat Living Area. E1. 732 7 228 Oper or Living Area El. 732 230 A . CR Bds. L-4A, 4C, 11A & 10. El. 732 9 233 RDH Eqpt. Rs. E1. 759 4 234 CRDH Eqpt. Rm. El. 759 4 23 Hech. Eqpt. Rs., El. 749 2 0 Mech. Lqpt. Rm., El. 749 2

_ $R:?$Q'?"' 1 -

~: --

p. O .

. .' F.9. i..6.s 0 * - .

I ABt E 3.3-11 (Cont inued}

! y, '

S FIRE DLIECTION INSTRUMENTS f pg IE MINIMUM INSTRUMENTS OPE !E

• FIRE Photoelectric iermal Infrared INS UMENT LOCATIGN lonization g 70NE 4

480-V XFHR Rs. IA, I. 749 3 241 3

! 242 480-V XIHR Rs. lA, E 749 480-V XiHR Rs. IB, E1. 9 ' 3 243 .

3 244 480-V XFHR Ra. IB, El._74 480-V XFHR Rs. 2A, E1. 749 3 245, 3 246 480-V XIHR Rs. 2A, E1. 749 l 480-V XtHR Rs. 28, EI. 749 3 ,

247 3 248 480-V XtM3 Rm. 2B, E1. 749 249 125-V Batt. Rs. 1. El. 749 1 250 12b-V Batt. Rs. I E1. 749 1 /

251 125-V Batt. Rs. 11. El. 749 )

ad

a. 252 125-V Uatt. Rs. II, E1. 749 1 (

253 125-V Batt. Rs. III, E1. 749 1 /

ya 125-V Batt. Rs. !!!, El. 749

+

os 254 255 125-V Datt. Ra. IV, E1. 749 1

! 256 125-V Batt. Rm. IV, El. 749 1 4

257 480-V Bd. Rm. 18. El. 749 4 258 480-V Bd. Rm. 18. El. 74 4 259 480-V Bd. Rs. IA, E1. 9 l 480-V Bd. Rs. IA, E . 749 4 2 260 4 261 480-V Bd. Ra. 2A 1. 749 4

262 480-V Bd. Rm. . El. 749 4 3

263 480-V Bd. . 28 E1. 749 4 264 480-V Bd . 28. El. 749 4 269 Compu r Rs. El 685 l ter Rm. E1. 685 270 Ci 8

! 271 4x. Inst. Rm. El. 685 9 i

272 Aux. Inst. Rm. El. 685 3 273 Compitter Rs. Corridor, E1. 685 -

Intake Pump Sta. El. 690 & 670.5 15 2~ 21 17 Ll:LW Pump Sta. E1. 704 125-V Batt. Rs. V El.-749 2 427 .

125-V Batt. Rs. V El, 749 2 I 428 l

TABLE 3.3-11 (Continued)

M FIRE DETECTION INSTRUMENTS -

S -

S g FIRE MINIMUM INSTRUMENTS OPER ZCNE Ionization

, INSTRUMENT LOCATION Photoelectric Thetaal Infrared 296 Aux. C ds. L-48, 4D, & 118 El 732 6 297 Main CR 8 E1. 732 9 N 298 Common MCR B El 732 9 387 Turbine Cont. 8 . Wall, E1. 706 18 353 Lwr. Compt. Cooler E1. 693 *.

355 Upr. Compt. Coolers,. . 778 4 374 Reactor Building Annulus 18 375 Reactor Building Annulus - )

18 362 RCP 1 E1. 693 2*

363 RCP 1 E1. 693 2 358 ~RCP 2 E1. 693 2*

359 RCP 2 E1. 693 2 T

• 356 RCP 3 E1. 693 2*

I 367 RCP 3 E1. 693 Y 2 370 RCP 4 E1. 693 O 2*

371 RCP 4 El. 693 2 l

I ogzEq 1, *This chan s effective upon completion of the modifications.

\

-- -r -

..__________.____.._._.________________________._.__m_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ - _ _ _ _ _ _ _ _ _ _ _ _ .

. s o -

ENCLOSURE 1 PROPOSED TECHNICAL SPECIFICATION CHAf1GES SE000YAH NUCLEAR PLANT UNITS 1 AND 2 (TVA SON TS 66)

CHANGE NO. 2 AXIAL FLUX DIFFERENCE MONITOR ALARM DELETION OF REQUIREMENT FOR DATA ACQUISITION 1

)

l t

i

POWER DISTRIBUTION LIMITS

,. ~.

Y

\

SURVEILLANCE REOUIREMENTS

• 4.2.1.1 The indicated AXIAL FLUX DIFFERENCE shall be determined to be within its. limits during POWER OPERATION above 50% of RATED THERMAL POWER by:

a. Monitoring the indicatied AFD for each OPERABLE excore channel Qi

^

, . leastonceper7dayswhentheAFDMonitorAlarmisOPERABLEg.

2. At 1;;;t ;.,;; ;r h;;r f;r th; "r;t 21 h: r; cit:r 7;;t:r'7; Um Ai; " ..-:te. A ;r- t: O P E P ^2 '_ E : + + " r

b. Monitoring and logging the indicated AXIAL FLUX DIFFERENCE for each OPERABLE excore channel at least once per hour for the first 24 hours2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br /> and at least once per 30 minutes thereafter, when the AXIAL FLUX DIFFERENCE Monitor Alarm is inoperable. The logged values of the indicated AXIAL FLUX DIFFERENCE shall be assumed to exist during the interval preceding each logging.

4.2.1.2 The indicated AFD shall be considered outside of its limits when at least 2 OPERABLE excore channels are indicating the AFD to be outside the limits.

l w

k SEQUOYAH - UNIT 1 3/4 2-2

POWER DISTRIBUTION LIMITS

(

SURVEILLANCE REOUIREMENTS

4. 2.1.1 The indicated AXIAL FLUX DIFFERENCE shall be determined to be within its limits during POWER OPERATION above 50% of RATED THERMAL POWER by:

a.

Monitoring the indicated AFD for each OPERABLE excare channelg gt

1. .

^}. least once per 7 days when the AFD Monitor Alarm is OPERA 8 ley 2.

f,t lu.t su p;r h;;r f;r th; fir;t;t:te:.

G. AT" L iitor A1;rr t: 0."C"?"L 2i h;;r; cit;r r;;terir.;

b. Monitoring and logging the indicated AXIAL FLUX DIFFERENCE for each OPERABLE excore channel at least once per hour for the first 24 hours2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br /> and at least once per 30 minutes thereafter, when the AXIAL FLUX DIFFERENCE Monitor Alarm is inoperable. The logged values of the indicated AXIAL FLUX OIFFERENCE shall be assumed to exist during the interval preceding each logging.

4.2.1.2 The indicated AFD shall be considered outside of its limits when at least 2 OPERABLE excore channels are indicating the AFD to be outside the limits.

SEQUOYAH - UNIT 2 3/4 2-2 - ..

ENCLOSURE 2 JUSTIFICATION FOR PROPOSED CHANGE IN TECHNICAL SPECIFICATIONS FOR UNITS 1 AND 2 SEQUOYAH NUCLEAR PLANT (TVA SON TS 66)

CHANGE NO. 1 FIRE DETECTION INSTRUMENTATION TABLE 3.3-11 DELETION Description of C1ange Limiting Condition for Oceration (LCO) 3.3.3.8 defines the fire detection instrumentation f or each fire detection zone needed to be OPERABLE to provide early notification of a fire. This proposed change would not remove any detectors or chanqe the type of any existing detectors in the plant, but it is intended to move the table (table 3.3-11) containing a stalled list of detectors and thei description to plant-controlled procedures and the Final Safety Analysis Report.

Reason for Change Within the past year, Sequoyah has received an approved change to SQN technical specifications adding and/or changing types of detectors (Amendment No. 37 to unit 1 (License No. DPR-77) and Amendment No. 29 to unit 2 (License No. DPR-79) issued on January 24, 1985). Recently the olant fire detection system was changea to add fire detection equipment over the Essential Raw Cooling Water (ERCW) pumps to satisfy concerns of an NRC OIE Region II Inspector. These detectors should be acded to the fire detection taole (table 3.3-11), which lists and describes plant fire detectors. This would requise another amendment. He believe that, with the current emahasis on fire protection in the industry, more changes could be forthcoming. Considering the industry-wide, NRC-initiated effort to simplify technical specifications, coupled with the administrative burden that repeated cnanges to technical specifications cause (both to TVA and NRC), adaquate reason for change is consti:uted.

Justification for Change Title 10, Part 50, Chapter 59, section (a)(l) of the Code Federal Regulations (10 CFR 50.59) describes the types of activities that the licensee may undertake without prior Commission approval. Item (1) states the licensee may make changes in the facility as described in the safety analysis report unless the proposed change involves a change in the technical 50ecifications incorporated in the license or an unreviewed safety question.

The fire detection system is. described in chapter 9, section 5.1 of the SON FSAR. This section requires the system in 9.5.1.1 9 to, " Provide an early warning fire detection system to notify personnel of a fire, actuate automatic suppression systems, and control auxiliary equipment."

We believe that the removal of the fire detection table from the technical specifications will reduce the burden on TVA and NRC of processing changes to the technical specifications while still fully ccmplying with the intent of the Code of Federal Regulations. This is true because a change to the plant procecures as described in the FSAR (sucn as surveillance instructions implementing the surveillance requirements) must be evaluated subject to the criteria of 10 CFR 50.59. Iri this determination, the facility / procedure change is subjected to the criteria of 10 CFR 50.59(a)(2). If the facility / procedure cnange fails to meet the criteria imoosed by the CFR, the Commission would receive a license amendment recuest similar to that required for a technical 50ecification change and the orcposed change would not be implemented without

~

_3 NRC approval. If the procedure / facility change satisfactorily meets the criteria of the CFR, the Ccmmission must be provided, by the-requirements of 10 CFR 50.59(b), notice of the change and, a ". . written safety evaluation which provides the bases for determinations that the change . does not involve an unreviewed safety question." This rule requires that the licensee furnish a report describing these changes and a written safety evaluation of each to the NRC Regional office on an annual bases.

Additionally, by the requirements of 10 CFR 50.71, TVA is required to update the FSAR to current plant design and make written notification to the Commission as to the changes made, on at least an annual basis. The annual FSAR update will continue to be submitted per the requirements of 10 CFR 50.71.

Conclusion The change to technical specifications (transfer of table 3.3-11 to plant-controlled documents, will not decrease safety of the plant since it does not change the facility or any reauirements of the tecnnical specifications. The purpose for changing the specification is simolication of the technical specifications and additional flexibility in plant design, nhile removing the administrative burden of license amendments for each design change. Any design change would be subjected to the criteria of 10 CFR 50.59, and a design change that would introduce the possibility of a new accident or malfunction (not analyzed by the safety analysis report), increase the probability of occurrence of a previously evaluated event, or reduce the margin of safety defined in the basis of any technical specification, would be determined an unreviewed safety

e

• _a-question. Prior NRC review and approval would then be reautred before implementation. Changes whicn do not divert from the intent of the specificaticn or unsatisfactorily alter the results of the final safety analysis would not be determined an unreviewed safety cuestion. This determination would be documented by written evaluation and reported to the NRC Regional Office in a routine annual report, which is consistent with the balance of the specifications.

He believe this change agrees with the philosoohy of the current industry and NRC effort to simplify technical specifications. This philosophy seeks to reduce the clutter and confusion of current technical specifications. We also believe this change agrees with the onilosoony and intent of Generic Letter 83-13. which allowed deletion of snubber tables from technical specifications

' Amendment No. 39 to unit I and Amendment No. 31 to unit 2).

o -

ENCLOSURE 2 JUSTIFICATION FOR PROPOSED CHANGE IN TECHNICAL SPECIFICATIONS FOR UNITS 1 AND 2 SEQUOYAH NUCLEAR PLANT (TVA SQN TS 66)

CHANGE N0. 2 AXIAL FLUX OIFFERENCE MONITOR ALARM - DELETION OF REQUIREMENTS FOR DAT,\ ACQUISITION Des _cription of Change This proposed change would delete surveillance requirement 4.2.1.1.a.2 concerning acquisition of axial flux difference (AFO) data for 24 hours2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br /> after restoring the AFD monitor alarm to OPERABLE status.

Reason for Change Surveillance requirement 4.2.1.1.a.2 is associated with the penalty area outside the target band when using the constant axial offset control (CAOC) method of operation. Soth SON units were changed to relaxed axial offset control (RAOC) by Amendment Nos. 19 and 21 for units 1 and 2, respectively.

This surveillance requirement should have been deleted as part of the change from CAOC to RAOC.

Justification for Change During operations in the first fuel cycl? for SON's units 1 and 2. 3xial flux difference was maintained in a controlled target band. This constant axial offset control (CAOC) was part of the surveillance required to maintain incore hot channel factors eithin limits and ensure adequate margin to departure from nucleate boiling (DNB) during all phases of ooerations ana applicable analyzed safety analysis accidents. As part of CAOC, axial flux difference was monitored for each 24-hour period, and " penalty minutes" were assessed for all

operation time outside the target band. If the technical specification limit for penalty minutes was reached, operation was restricted to lower power levels until the accrued number of penalty minutes was reduced to below the allowable limit. Monitoring of AFD penalty minutes was performed by the plant process computer which drives the AFD monitor alarm. For an outage of the AFD monitor alarm, the record of these penalty minutes became invalid and upon restoration of the comouter 24 hours2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br /> of operation was reauired to allow the computer to restore correct up-to-date penalty minutes monitoring.

Upon restart from the first refueling outage for eacn unit, rela.ved axial offset control (RACC) was imolemented. This scheme of operation allows greater flexib!'ity for plant transients, startuos, and shutdowns, while maintaining adequate control of axial flux difference to ensure margin to DNB for applicable analyzed conditions.

RAOC introduces changes to tne method of calculating hot channel factors to introduce tighter controls for transient conditions in order to allow greater flexibility for normal operations. Due to the Ihift to RAOC, penalty minutes are no longer utilized as part of AFD control. Therefore, the need for 24-hour monitoring after restoration of the AFD monitor alarm is unnecessary and constitutes an undue requirement of coerator time and attention.

l

~

F .

ENCLOSURE 3 CHANGE NO. I SIGNIFICANT HAZARDS CONSIDERATION DETERMINATION FOR DELETICN OF TABLE 3.3-11, FIRE DETECTION INSTRUMENTATION This proposed change to the technical specifications does not reflect a change in plant design, configuration, or testing requirements. It deals with the administrative process of making a change to plant design. By removing the table of fire detectors from technical specifications and olacing them in the plant-controlled procedures and the FSAR, changes to plant design can be evaluated and documented using the Unreviewed Safety Question Determination criteria of 10 CFR 50.59. This change does not affect the orobability or consequences of any accident previously evaluated since changes to the system and procedures would require satisfactory compliance with 10 CFR 50.59.

Failure to meet these critcria would constitute an Unreviewed Safety Question which reqeires Commission review and approval before implementation.

This proposed change will not create the possibility of a new or different type accident other than those evaluated previously in the safety analysis report. No pnysical configuration or testing changes are prooosed. The transfer of the fire detection instrumentation table to the FSAR and plant procedures is an administrative change. Changes in the table will require satisfactory compliance with 10 CFR 50.59 or prior NRC approval of any Unreviewed Safety Questions.

The margin of safety of the plant is not reduced by this administrative change since any changes to plant design must comply with the criteria of 10 CFR 50.59 (USQD) before their implementation.

{ .

ENCLOSURE 3 CHANGE NO. 2 SIGNIFICANT HAZARDS CONSIDERATION DETERMINATION FOR DELETION OF 24-HOUR DATA ACQUISITION WITH AFD MONITOR ALARM RESTORED The control of axial flux difference associated with the program of constant axial offset control affects the consequences of design basis accidents by limiting the approach to departure from nucleate boiling (DNB) in localized '

" hot spots." By maintaining a controlled axial flux distributi naand normal surveillance on hot channel factors, a high level of assurance is provided, for most events analyzed in the SQN safety analysis, tnat DNB will not occur.

Relaxed axial offset control (RAOC) also provides this assurance while providing additional operational flexibility. RAOC does away with the need for the " penalty minute" philosophy of AFD control, thereby doing away with the necessity of the surveillance requirement in question, SR 4.2.1.1.a.2.

The FSAR assumpticns are met using the RAOC operational philosophy, therefore, the probability of occurrence or the consequences of accidents evaluated in the final safety analysis are not significantly increased.

Since the surveillance requirement involves only the monitoring and recording of data wnich is no longer necessary and does not effect the operation of any equipment involved in the mitigation of any accidents, the possibility of a new accident being caused by this change is not created.

The change from CAOC to RAOC (Amendment No. 19 - unit I and Amendment No. 21 -

unit 2) deleted the control band and associated penalty minute philosophy.

This surveillance requirement should have been deleted as part of those amendments. Since the data is not applicable under the RAOC method of operation, the margin of safety is not reduced.

..