IR 05000282/2021010

From kanterella
Jump to navigation Jump to search
Design Basis Assurance Inspection (Teams) Inspection Report 05000282/2021010 and 05000306/2021010
ML21174A150
Person / Time
Site: Prairie Island  
Issue date: 06/22/2021
From: Karla Stoedter
NRC/RGN-III/DRS/EB2
To: Domingos C
Northern States Power Company, Minnesota
References
IR 2021010
Download: ML21174A150 (16)


Text

June 22, 2021

SUBJECT:

PRAIRIE ISLAND NUCLEAR GENERATING PLANT - DESIGN BASIS ASSURANCE INSPECTION (TEAMS) INSPECTION REPORT 05000282/2021010 AND 05000306/2021010

Dear Mr. Domingos:

On June 3, 2021, the U.S. Nuclear Regulatory Commission (NRC) completed an inspection at Prairie Island Nuclear Generating Plant and discussed the results of this inspection with you and other members of your staff. The results of this inspection are documented in the enclosed report.

No NRC-identified or self-revealing findings were identified during this inspection.

A licensee-identified violation which was determined to be of very low safety significance is documented in this report. We are treating this violation as a non-cited violation (NCV)

consistent with Section 2.3.2 of the Enforcement Policy.

If you contest the violation or the significance or severity of the violation documented in this inspection report, you should provide a response within 30 days of the date of this inspection report, with the basis for your denial, to the U.S. Nuclear Regulatory Commission, ATTN:

Document Control Desk, Washington, DC 20555-0001; with copies to the Regional Administrator, Region III; the Director, Office of Enforcement; and the NRC Resident Inspector at Prairie Island Nuclear Generating Plant. This letter, its enclosure, and your response (if any) will be made available for public inspection and copying at http://www.nrc.gov/reading-rm/adams.html and at the NRC Public Document Room in accordance with Title 10 of the Code of Federal Regulations 2.390, Public Inspections, Exemptions, Requests for Withholding.

Sincerely,

/RA/

Karla K. Stoedter, Chief Engineering Branch 2 Division of Reactor Safety

Docket Nos. 05000282 and 05000306 License Nos. DPR-42 and DPR-60

Enclosure:

As stated

Inspection Report

Docket Numbers:

05000282 and 05000306

License Numbers:

DPR-42 and DPR-60

Report Numbers:

05000282/2021010 and 05000306/2021010

Enterprise Identifier: I-2021-010-0047

Licensee:

Northern States Power Company

Facility:

Prairie Island Nuclear Generating Plant

Location:

Welch, MN

Inspection Dates:

May 10, 2021 to June 03, 2021

Inspectors:

B. Daley, Senior Reactor Inspector

S. Gardner, Electrical Contractor

T. Hartman, Senior Resident Inspector

M. Jones, Reactor Inspector

G. O'Dwyer, Reactor Engineer

E. Sanchez Santiago, Senior Reactor Inspector

Approved By:

Karla K. Stoedter, Chief

Engineering Branch 2

Division of Reactor Safety

SUMMARY

The U.S. Nuclear Regulatory Commission (NRC) continued monitoring the licensees performance by conducting a design basis assurance inspection (teams) inspection at Prairie Island Nuclear Generating Plant, in accordance with the Reactor Oversight Process. The Reactor Oversight Process is the NRCs program for overseeing the safe operation of commercial nuclear power reactors. Refer to https://www.nrc.gov/reactors/operating/oversight.html for more information. A licensee-identified non-cited violation is documented in report section: 71111.21M.

List of Findings and Violations

No findings or violations of more than minor significance were identified.

Additional Tracking Items

Type Issue Number Title Report Section Status URI 05000282,05000306/2021010-01 Unexpected Opening of the Battery Charger Output Breaker 71111.21M Open

INSPECTION SCOPES

Inspections were conducted using the appropriate portions of the inspection procedures (IPs) in effect at the beginning of the inspection unless otherwise noted. Currently approved IPs with their attached revision histories are located on the public website at http://www.nrc.gov/reading-rm/doc-collections/insp-manual/inspection-procedure/index.html. Samples were declared complete when the IP requirements most appropriate to the inspection activity were met consistent with Inspection Manual Chapter (IMC) 2515, Light-Water Reactor Inspection Program - Operations Phase. The inspectors reviewed selected procedures and records, observed activities, and interviewed personnel to assess licensee performance and compliance with Commission rules and regulations, license conditions, site procedures, and standards.

Starting on March 20, 2020, in response to the National Emergency declared by the President of the United States on the public health risks of the Coronavirus Disease (COVID-19), regional inspectors were directed to begin telework. During this time regional baseline inspections were evaluated to determine if all or portions of the objectives and requirements stated in the IP could be performed remotely. In some cases, portions of an IP were completed remotely and on-site.

For the inspection documented below it was determined that the objectives and requirements stated in the IP could be completed remotely.

REACTOR SAFETY

===71111.21M - Design Bases Assurance Inspection (Teams)

The inspectors evaluated the following components and listed applicable attributes, permanent modifications, and operating experience:

Design Review - Risk-Significant/Low Design Margin Components (IP Section 02.02)

=

(1)22 Diesel-Driven Cooling Water Pump (DDCLP)

  • Technical Specification (TS) Surveillances
  • Technical Requirements Manual (TRM) Requirements
  • Walkdown
  • Seismic Protection
  • Flow Capacity & Balance
  • Runout and Minimum Flow
  • Required Submergence
  • Water Supply Availability
  • Pump Cooling
  • Jacket Water Cooler
  • Fuel Oil (Available Volume/Consumption)
  • Engine Lubrication
  • Component Health, Corrective Maintenance, and Corrective Action History
  • Consistency Between Station Documentation (e.g., Procedures) and Vendor Specifications
  • Voltage Drop
  • Low Pressure Instrumentation
  • Control Logic (2)21 Cooling Water (CL) Strainer
  • TS Surveillances
  • TRM Requirements
  • Walkdown
  • Operating Procedures
  • Maintenance Effectiveness
  • Modifications
  • System Health
  • Environmental Qualifications
  • Debris Loading Impact to Flow Capacity/Balance
  • Debris Loading Impact to Structural Design
  • Instrument Differential Pressure Setpoints
  • Mesh Size in Comparison to Downstream Component Openings
  • Pneumatic Backwash Compressed Air Capacity

(3)125 Volt Direct Current (DC) Distribution Panel - Panel 21

  • Walkdown
  • Room Heat Up
  • Loading Calculations
  • Short Circuit Calculations
  • Coordination Calculations
  • Temperature Effects and Environmental Qualification
  • Room Temperature Instrumentation
  • Fuse Ratings

(4)4160 Volt Alternating Current (AC) Distribution Bus - Bus 25

  • UFSAR/TS/TRM Licensing Basis Requirements
  • Walkdown
  • Operating/Maintenance Procedures
  • System Health Reports
  • Short Circuit Calculations
  • Coordination Calculations
  • Battery Capability to Supply Control Voltage
  • Degraded Voltage Protection
  • Protective Devices and Trip Set Points

Design Review - Large Early Release Frequency (LERFs) (IP Section 02.02) (1 Sample)

(1)21 Motor-Driven Auxiliary Feedwater (AF) Pump

  • UFSAR/TS/TRM Licensing Basis Requirements
  • TS Surveillances
  • Walkdown
  • Corrective Action Documents
  • Room Heat Up Calculations
  • Submergence/Net Positive Suction Head Calculations
  • Suction Swap Calculations
  • Design Basis Calculations
  • Testing Acceptance Criteria Calculations
  • Temperature Effects and Environmental Qualification
  • Flooding Calculations
  • Pump Motor Degraded Voltage
  • Protective Devices
  • Minimum Voltage
  • Control Logic

Modification Review - Permanent Mods (IP Section 02.03) (4 Samples)

(1)6EQVENG12084 - Replace Cooling Water Strainer Backwash Valve (2)6MOD00026419 - Auxiliary Feedwater Pump Room Unit Cooler Replacement (3)6MOD00025399 - Replacement of 1R Station Reserve Auxiliary Transformer (4)6MOD00025413 - 12 Diesel-Driven Cooling Water Pump Replacement

Review of Operating Experience Issues (IP Section 02.06) (2 Samples)

(1) NRC Information Notice 2017-06 - Battery and Battery Charger Short-Circuit Current Contributions to a Fault on the Direct Current Distribution System
(2) NRC Information Notice 2016-05 - Operating Experience Regarding Complications from a Loss of Instrument Air

INSPECTION RESULTS

Unresolved Item (Open)

Unexpected Opening of the Battery Charger Output Breaker URI 05000282,05000306/2021010-01 71111.21M

Description:

As a result of the evaluation of Information Notice (IN) 2017-06 dated August 13, 2018, the licensee obtained vendor information in regard to the response characteristics of the 21 Battery Charger. This information displayed the expected response of the battery charger to a fault experienced downstream of the charger. Contrary to past licensee assumptions that the charger would interrupt current flow when current levels were greater than or equal to 315 Amps, information from the vendor showed that the battery charger would actually supply up to 6000 Amps during the first 10 milliseconds of the fault event rather than interrupting the current flow when the current was 315 Amps or more.

Current levels in excess of 315 Amps could potentially cause the breaker downstream of the battery charger to inadvertently open. The licensee did not recognize the potential for the downstream breaker to open until it was identified by the inspectors.

This tripping of the downstream breaker was different than what was provided in Assumption 6.2.1 of Prairie Island calculation ENG-EE-012, 125VDC Coordination Study, which states, It is assumed that the battery charger output breakers will not operate for external faults. Additionally, this calculation was used for the plants fire protection safe shutdown analysis. The assumption that the battery charger output breakers would not operate and the battery chargers would remain available was used in the plant specific fire protection Probabilistic Safety Assessment (PSA) which supports the NFPA 805 performance based analysis for Prairie Island fire areas. If the characteristics of the battery charger design could result in the inadvertent opening of the output breaker for faults in fire areas in the plant, the PSA that is relied upon for those areas would be altered non-conservatively because the battery charger would now no longer be available. Fire areas that use the performance based approach in NFPA 805 rely upon the PSA to determine the acceptability of the safe shutdown analysis for that area. The PSA is also used to determine the acceptability of potential future changes to fire protection elements in the fire area. An incorrect, non-conservative PSA could adversely affect the acceptability of the safe shutdown analysis, and therefore, the ability of the plant to safely shutdown during a fire event.

The licensees fire protection program, which is required by their plant specific license condition, is maintained in accordance with NFPA 805. Should it be determined, through analysis, that the design (vendor) information for the battery charger received for the IN 2017-06 evaluation could result in the inadvertent opening of the battery charge output breaker, the PSA data would no longer be correct. This issue is being dispositioned as an Unresolved Item (URI) pending the licensees evaluation of fire related faulting of downstream cables (and/or panels).

Planned Closure Actions: The inspectors will review/inspect any adverse effects to the licensee's plant specific fire protection program. Based upon this review, the inspectors will determine if any performance deficiencies exist, if the performance deficiencies are more than minor, and whether a violation of NRC requirements occurred.

Licensee Actions: The licensee entered this issue into their corrective action program to consider the potential impacts on downstream coordination of the battery charger. The licensee will further assess the impact on the downstream DC output breaker on the battery charger due to DC faults.

Corrective Action References: CAP 501000051933: DBAI - IN 2017-06 Not Fully Evaluated

Licensee-Identified Non-Cited Violation 71111.21M This violation of very low safety significance was identified by the licensee and has been entered into the licensee corrective action program and is being treated as a non-cited violation, consistent with Section 2.3.2 of the Enforcement Policy.

Violation: Title 10 CFR 50, Appendix B, Criterion XI, "Test Control" requires, in part, that all testing required to demonstrate structures, systems, and components will perform satisfactorily in service is identified and performed in accordance with written test procedures which incorporate the requirements and acceptance limits contained in applicable design documents.

Contrary to the above, since March 28, 2017, the licensee has failed to perform testing demonstrating structures, systems, and components will perform satisfactorily in service in accordance with written test procedures which incorporate the requirements and acceptance limits contained in applicable design documents. Specifically, the licensee's design basis assumes the breakers for the 21 Component Cooling Pump and the Bus 26 Source from 2RY are capable of closing with voltage as low as 67 volts DC but have never been tested at that voltage. The lowest voltage they have been verified to operate was 90 volts DC.

Significance/Severity: Green. The inspectors assessed the significance of the finding using Inspection Manual Chapter (IMC) 0609, Attachment 4, Initial Characterization of Findings, dated December 20, 2019, and IMC 0609, Appendix A, The Significance Determination Process for Findings At-Power, dated December 20, 2019. Using Exhibit 2, Mitigating Systems Screening Questions, the inspectors determined that the finding was of very low safety significance (i.e., Green). Although the finding represented a deficiency affecting the design or qualification of a mitigating system, structure, or component (SSC), (e.g. the 21 Component Cooling Pump), neither the operability nor the probabilistic risk assessment (PRA) functionality of the SSC was lost. The licensee determined the equipment was operable because of testing other similar/representative SSCs at the lower voltages without issue.

Corrective Action References: CR 501000035537: Procedures PE0007/0008 Discrepancy

EXIT MEETINGS AND DEBRIEFS

The inspectors verified no proprietary information was retained or documented in this report.

  • On June 3, 2021, the inspectors presented the design basis assurance inspection (teams) inspection results to Christopher P. Domingos, Site Vice President and other members of the licensee staff.

DOCUMENTS REVIEWED

Inspection

Procedure

Type

Designation

Description or Title

Revision or

Date

71111.21M Calculations

178599.51.2012

Prairie Island Diesel Driven Cooling Water Pump Operating

Time

700063077

SP 1106B-22 DD CL PMP (245-392) 1 M Test

05/01/2020

700068001

SP 1106B-22 Diesel Driven Cooling Water (CL) Pmp

(245-392) 1 Month Test

07/31/2020

91-02-21

Battery 22

DC91L310

Control Room Monitoring of DC Systems

2/16/1995

E-415-EA-9

4KV Bus 25&26 DC Feeder and Vert Pnl DC Coordination

ENG-EE-012

25 VDC Coordination Study

ENG-EE-017

4kV Safeguards Pump/Motor Data Package

ENG-EE-162

Unit 2-4KV Safeguards Switchgear Protective Relay

Settings & Coordination

ENG-EE-170

ETAP Electrical Analysis

ENG-EE-171

Degraded Voltage

ENG-EE-177

AC System Fault Analysis

ENG-EE-200

PINGP ETAP 125 VDC Electrical Analysis

ENG-EE-208

AC System Load Flow Analysis

ENG-ME-020

D1/D2 and DDCLP Fuel Oil Storage Capacity

ENG-ME-021

Auxiliary Feedwater Pump Room Heat Loads

ENG-ME-218

Single Failure Analysis for Cooling Water System

ENG-ME-219

Safeguards CL Pump NPSHR Static Head Requirement

ENG-ME-347

Minimum Required Intake Volume

1D

ENG-ME-458

Highest Acceptable Leak Rate in the CL Pump Rooms

ENG-ME-573

Tube Plugging Limit for 12 and 22 DDCLP Jacket Water

Heat Exchanger

1A

ENG-ME-576

AFP Pump Acceptance Criteria

2H

ENG-ME-820

CL Hydraulic Analysis - LOOP, LOCA, and Seismic

Response

ENG-ME-835

Cooling Water Strainer Hydraulic Loading Analysis

ENG-ME-847

HELB Case Specific Inputs & SEA Room Heat Up

0C

ENG-ME-849

Design Basis Accident Room Heat Up Model Case Specific

Inspection

Procedure

Type

Designation

Description or Title

Revision or

Date

Inputs and Results

ENG-ME-850

2/22 DDCLP Engine Lube Oil Inventory

GEN-PI-096

Nuclear Safety Capability Assessment Analysis for

Compliance with NFPA 805

GEN-PI-097

Safe Shutdown Equipment for Compliance with 10 CFR 50,

Appendix R

SPC-CL-034

Loop B Diesel Pump 22 Start Pressure Switch

Corrective Action

Documents

600000212603

Operating Experience Evaluation of IN 2017-06

08/23/2018

01502331

Pending Room Heatup Analyses Impact Planned/in Flight

Project

11/18/2015

01520318

OE: NRC IN 2016-15 Operating Experience Regarding

Complications from a Loss of Instrument Air

08/25/2016

01552882

EC 26419 PMT - Flow Test Did Not Meet Acceptance

Criteria

03/13/2017

01557766

AFW Rm Unit Cooler Standby Setpoint Too High

03/17/2005

2084

Replace CL Strainer Backwash Valves with SS Valves

05/01/2016

1482702

D5 Output Breaker Annunciator Not Func

06/03/2015

500001496344

D5 Output Breaker Annunciator Not Func

10/11/2015

500001514923

Bkr 25-2 Will Not Rack to "Disconnect"

03/09/2016

500001524719

Annunciator 47524-0601 Reflashed

06/09/2016

500001548783

Preliminary Battery Calculation Results

01/27/2017

500001553539

Results Obtained for New DC Battery Calc

03/30/2017

501000007726

During TP 1789B Minimum Cooling Water Flow Not

Achieved for 12 AFW RM PMP CLR

01/26/2018

501000016553

AFWP Has Low Seal Water Flow

07/05/2018

501000019265

AFW PMP RM CLR Leaking Condensate

10/27/2018

501000019274

AFW PMP RM CLR Leaking Condensation

10/27/2018

501000022683

AFW PMP Bypass Piping Flange Weld

10/13/2019

501000023635

AFW Room Cooler Testing

2/27/2019

501000023925

2019 NRC UHS: AF RM UC DP Testing

03/06/2019

501000026949

Unit Coolers' Fan Blades in AFWP Room Need Cleaning

05/07/2019

501000033246

Possible Oil Leak on 21 MD AFWP

10/13/2019

501000033820

4KV Charging Motor Unsat

10/23/2019

Inspection

Procedure

Type

Designation

Description or Title

Revision or

Date

501000035537

Procedures PE0007/0008 Discrepancy

2/11/2019

501000037775

MDAFW PMP Oil Fill

2/17/2020

501000040177

Leaking Hose on 22 DDCLP

05/01/2020

501000047556

D5 Output Bkr Remote Racking Capability

01/06/2011

501000049198

TP1789B As Found Flow Out of Band

03/03/2021

501000049319

MD AFWP OB Bearing Seal Buildup

03/08/2021

501000049607

TP 1789A Step 7.4.5 Not Met

03/16/2021

501000049608

TP 1789A Step 7.4.2 Recorded 40 Vice 46

03/16/2021

501000051933

DBAI - IN 2017-06 Not Fully Evaluated

05/12/2021

6100000000812

NRC IN 2019-08

10/16/2019

6DOC00028471

Downgrade Safety Related Backup Air Supply for Cooling

Water Strainer

04/12/2017

Corrective Action

Documents

Resulting from

Inspection

501000051691

21 DBAI Update to RFI II-4 Required

05/07/2021

501000052033

21 DBAI Minor Calc Errors

05/14/2021

501000052262

NRC 2021 DBAIT IDENTIFIED: ENG-ME-021 Rev 4C

Stated AFP Room Max Temp 122F But Data Supports 131F

05/19/2021

501000052363

NRC 2021 DBAIT IDENTIFIED Internal Flooding Signs Cite

Superseded Procedure

05/20/2021

Drawings

NE-116785 Sh.13

D5 Emergency Generator Bus 25 Cubicle 2

NE-40009-71-1

Diesel Cooling Water Pump

NE-40009-71-2

Diesel Cooling Water Pump

NF-116497

Interlock Logic Diagram - Unit 2 Bus 25 Load Rejection-

Restoring

C

NF-39216

Flow Diagram Cooling Water - Screenhouse

100

NF-39774

Instrument Air Supply and Control Piping - Turbine Building -

Unit 2 and Screenhouse Units 1 and 2

NF-40022-2

Circuit Diagram 4KV and 480V Safeguard Busses Unit 2

NF-40547-1

Wiring Diagram DC Distribution Panels "A" Train

Engineering

Changes

6MOD00025399

Replacement of 1R Station Reserve Auxiliary Transformer

01/17/2020

6MOD00026419

Upgrade Unit 1 and 2 Auxiliary Feedwater (AFW) Pump

Room Coolers from Non-Safety Related to Safety Related

05/23/2019

EC 25413

Replacement of 12 Diesel Driven Cooling Water Pump

04/07/2017

Miscellaneous

Response to Generic Letter 91-06: Resolution of Generic

10/28/1991

Inspection

Procedure

Type

Designation

Description or Title

Revision or

Date

Issue A-30, "Adequacy of Safety-Related DC Power

Supplies"

B20.5

4.16KV Station Auxiliary System

CGD PI-0077

Commercial Grade Evaluation Class RK1 UL Listed 140

VDC Fuses

2/01/2001

DBD SYS 20.09

Design Basis Document for the DC Auxiliaries System

DBD SYS-35

Design Basis Document for the Cooling Water System

EM 2.3.7

Electrical Separation/Isolation

LER 1-92-005

Design Basis Reconstitution Effort Identified a Condition

Outside 10 CFR Part 50 Appendix R Requirements

04/27/1992

NMSIP-ELEC-

0008

4KV Breaker Closing and Trip Voltage Pickup Times

10/15/2014

NX-20622-1

Mercoid Pressure Controls

NX-236975

Safety Related Battery Charger

PR2 25-10A

Relay Setting 21 MD AFW Pmp Breaker

11/01/1992

Screening 1620

TRM Change - Delete 3.3.D

STRIDE PI-2018-

ED-03

STRIDE to Extend Emergency Diesel Generator (EDG) Trip

Bypass Testing and Integrated SI Test with a Simulated

Loss of Offsite Power (LOOP) Test Frequencies

09/13/2019

U2-4.160KV

System Health Report

XH-2701-3

5HK 350 Switchgear and Relaying

Z9IL266011

Test Report Performance of Bussmann LPN-RK Fuses at

140 VDC Per UL 198L

Procedures

1C20.5 AP7

Response to Degrading Bus 25 or 26 Voltage

2C20.5

Unit 2-4.16KV System

2C20.5AOP1

Re-energizing 4.16KV Bus 25

515440

Bkr 25-2 Install New Breaker and Perform 52S Checks

01/08/2015

AB-3

Earthquakes

C35

Cooling Water

C47041

Alarm Response Procedure AR 42 11/21 or 12/22 AFWP

Room HI TEMP

C47510

Alarm Response Procedure

FP-IP-SFCP-01

Surveillance Frequency Control Program

Inspection

Procedure

Type

Designation

Description or Title

Revision or

Date

FP-OP-SFCP-01

Surveillance Frequency Control Program

FP-SC-PE-02

Item Equivalency Evaluation

ICPM 2-025A

Unit 2 DC Monitoring Panel Instruments Calibration - Train A 2

IP-ENG-001

Standard Design Process

PCR

2000020185

PCR 602000020185 - TP 1789A PCR in Progress and

Started 3-23-2021

03/23/2021

PCR

2000020185

Markup

Markup - TP 1789A

PCR

2000020186

TP 1789B-PCR in Progress and Started 3-23-2021

PCR

2000020186

Markup

Markup - TP 1789B R11

PE-0007

5HK250/350 Breaker Testing Maintenance & Repair - Minor

PE-0008

5HK250/350 Breaker Testing Maintenance & Repair - Major

PE-0009

4KV Switchgear Preventive Maintenance

TP 1789A

AFW Pump Room Cooler Flushing, Flow Balancing, Dp

Monitoring, & Air Side Inspection, Train A

TP 1789B

AFW Pump Room Cooler Flushing, Flow Balancing, Dp

Monitoring, & Air Side Inspection, Train B

Work Orders

00547527

Install New 21 Air Compressor Motor Cooler per EC 26419

06/20/2017

375229

4KV Breaker Testing

10/10/2013

468822

Bus 25 Switchgear Preventive Maintenance

2/11/2013

2067

2S Contacts

05/08/2017

700000603

CV-31653, Replace Valve and Actuator

06/16/2020

700043770

Performance of SP 2103A AFW Comprehensive IST Pump

and Valve Test (Refueling)

11/18/2019

700045586-0010

SP 1083B

Unit 1 Integrated SI Test with Simulated Loss of Offsite

Power Train B

03/05/2019

700046740

Performance of TP 1398 Internal Flooding Walkdown

05/03/2019

700054423

SP 2193A Cycling AFWP AND CL Water MV's

10/18/2019

700058720

Perform ICPM 2-025A Unit 2 DC Monitoring Panel

Instruments Calibration Train A

03/05/2020

Inspection

Procedure

Type

Designation

Description or Title

Revision or

Date

700060230

Performance of TP 1398 Internal Flooding Walkdown

07/24/2020

700071523

SP 1106B - 22 DD CL PMP (245 - 392) 1 M Test

10/30/2020

700071646-0010

Work Order Task Plan to Replace Valve ZE-5-15 and

Associated ZE Piping

04/14/2021

700075594-SP-

1106B

Diesel Cooling Water Pump Monthly Test

2/22/2021

700077021

SP 1106B - 22 DD CL PMP (245-392) 1 Month Test

03/05/2021

700077662

SP1106A - 12 DD CLP (145 - 392) MNTH Test

03/19/2021

700079090

SP 1106A 12 Diesel CL Pump Monthly

04/19/2021