ML16271A085
| ML16271A085 | |
| Person / Time | |
|---|---|
| Site: | Turkey Point  |
| Issue date: | 09/27/2016 |
| From: | NRC/RGN-II/DRS/OLB |
| To: | Florida Power & Light Co |
| References | |
| Download: ML16271A085 (3) | |
Text
L-16-1 NRC POST EXAM COMMENTS 1 Simu1atiGoncerfl(s). 1MO254S%L
- 1. j Sim difference list -- fuse box for head vent fuses- mimic like plant or added to difference list I
- LOll GAPs to training TWR# 02154646
- 1. 2 handed OPS- when applicable f only some candidates pushed phase B buttons simultaneously) 0-ADM-200, 4.4.20
- 2. State Notification Form - This is a drill must be checked if not a real emergency
- 3. ANN C8/3 is two alarms in one- a dump armed and a dump actuated alarm For a load drop, the steam dump armed alarms after a 10% ramp, the steam dump actuated alarms after a 9.5°F Tave-ref mismatch.
C8/3 may alarm for just the actuated portion of the alarm. But, Steam Dumps to Condenser may not actually open because they havent armed yet due to the load ramp/drop circuity not being satisfied. This was observed when a HDP tripped from 100% with auto rod motion failed- as is. Crews took manual control of SDC thinking it had failed.
The 10% Arm Circuity was a fraction of a point away from being satisfied.
PROCEDURE NO.:
I CONTROL ROOM RESPONSE PANEL C -
[DOW; 3-AR P-07 .0 R C TURKEY POINT UNIT 3 813 (Page 1 of 1)
CAUSES: 1 bond reedion such as turbine wnback or turbine trip
- 2. MarjaI steam dump control CB/3
- 3. Instrument failure STEAM DUMP ARMEDI ACTUATED DEVICE: SEIPOINT: LOCAT1ON:
- PC-447AX, 4476X a. i0% 30% Fast load drop
- P5-31528, 3629, .31530 2 out of 3 ernereacy znp header 1000 psiç,
- SL-X, SR-X 2 out of 2 turbne stop valve lirrnt sth, turbrne tap
- TC-4OSJIX, 40&12X 554f. 56iF Tonic selpoint comparator
- TC40I3F1X. 468F2X 9 5F, 14 5F ToveTret comparator
- TY4i2E422E,432E 2 out ci 3 at 543F and steam dump OS in BYPASS
- 4. Review ECA-0.0 time basis for getting on $80
- 5. C Condensate / Feedwater pps may autostart on loss of emergency buses, if C 4kv bus remains energized and either ANN D6/1 SGFP A/B MOTOR OVERLOAD TRIP OR D9/2 COND PUMP A/B/C_MOTOR OVRLD TRIP are in ALARM.
- 6. From written exam: 074 reviewed with class during NRC written exam review- cover how P-panel failures criss cross on controllers. Discuss how controller goes to auto-lockup or manual depending on the P-panel that fails (06,07,08 or 09).
L-16-1 NRC POST EXAM COMMENTS
- Procedure Concerns AR#Z154662 314-ONOP-047. 1 Enhancement- Add step 1 NOTE Review Foldout page LOSS OF CHARGING FLOW IN MODES 1 THROUGH 4
- 2. 3/4-OSP-047. 1 E, Enhancement- Tech Specs must be reviewed if OSP fails- add applicable tech spec list (ex:
LETDOWN LINE CV-3-200A fails when stroking)
ISOLATION VALVE TEST
- 3. 3/4-ARP-097.CR.A Enhancement- add a prompt action that allows the operator to take manual control of A912 PZR pressure for slow building failures (ex: PC-3-444] fails low, causing heaters to full on and CONTROL HI/LO PRZ pressure to slowly rise)
PRESS
- 4. 3/4-ARP-097.CR.A Enhancement- have OPERATOR ACTIONS STEP 1 address securing an AUTOMAKEUP A4/6 VCT HI/LO (take makeup control switch to STOP) for LT failures LEVEL
- 5. 3/4-ARP-097.CR.B OPERATOR ACTIONS B711 NIS/RPI 1 ENSURE auto rod withdrawal block has occurred (Auto rod withdrawal capability ROD DROP currently disabled).
ROD STOP Add note or include in step the words On DCS- RPI OVERVIEW screen
- 6. 3/4-ONOP-030 Enhancement- add NOTE additional service water valves may need to be opened in order COMPONENT to obtain flow added prior to step 12 (unit 3) step 10 (unit 4). Reason is U4 has a no name COOLING WATER service water valve downstream of 4-70-118 that needs to be opened that is not specifically MALFUNCTION addressed in procedure Attachment 1-Control of Emergency Cooling Water to Charging Pumps
- 7. 3-ARP-097.CR.C Enhancement- have ARP address the failure and then direct ONOP-049.1 performance or C6/1 SG A LEVEL should ONOP-049.1 have a step once feed is returned to AUTO ensure controllers DEVIATION / returned to AUTO lAW 3-ARP-097.CR.C ANN CNTRL C6/1 TROUBLE vs 3/4W ONOP-049. 1
- 8. 3/4-OP-047 CVCS Enhancement- add additional step after step 7 If RV has lifted, then close CV-3-387.
Charging and Letdown 7.12 Guidance for Placing Excess Letdown in Service
- 9. 3/4-EOP-ECA-0.0 Enhancement- add additional wording into current NOTE (Power needs to be restored to at Att 6 3NB 4KV Bus least one 4KV bus... within 10 minutes...) to include the words KEY LOG may be updated Restoration following bus restoration to satisfy time requirements.
- 10. 3/4-ONOP-028 Enhancement- NOTE prior to step 5.5.5 Control bank D withdrawn past 230 steps-- add Reactor Control second bullet RPI group demand counter range on DCS is 0 to 230 steps System Malfunction
L-16-1 NRC POST EXAM COMMENTS
- Operating Exam Comments Facility Comment #1 JPM A, Respond to Control Bank D Demanded Past ARO Steps, needed modification based on operator comment5 during prep week. The issue was with 3-ONOP-028 steps that were extraneous to the JPM. The JPM was shortened by removing the DCS response. AR# 2154662 was written to track PCR to 3/4-ONOP-028 to address the group step demand range on DCS as 0-230 steps. Comment Addressed Prep Week and incorporated into final submittal.
NRC Resolution:
Facility Comment #2 RO JPM A2, Review an ECO for the 3A Heater Drain Pump, needed modification based on JPM follow up questions. The JPM required a tag out of the 3A Heater Drain Pump. A critical step required the recirculation isolation valve to be closed prior to the suction. After discussing with the Facility Representative and reviewing 3-NOP-081, we have determined that closing 3-30-853, ISOLATION VALVE A HEATER DRAIN PUMP RECIRCULATING LINE, prior to closing the suction should NOT be included in the critical step.
NRC Resolution: