SSU21-029 BWK Gyro Compass Repair.docx

SERVICE ORDER REQUEST - MSC SSU GUAM

GYRO COMPASS SPERRY MARINE

2.0 REFERENCES:

2.1 Sperry Marine Tech Manual SE170-CK-MMC-010, Navigat X MK1 Gyro Operation and Maintenance manual

2.2 NAVSEA Drawing No. 802-8444213, Ship Control, Integrated Bridge and Navigation System Block Wiring Diagram and List of Connections

3.2.1 One (1 EA) Gyro Compass; Mfr: Northrup Grumman Sperry Marine; Model NAVIGAT X MK1, HSC 74811; Serial 8718

6.0 QUALITY ASSURANCE REQUIREMENTS:

6.1 The requirements of this Work Item shall be in accordance with References 2.1 and 2.2 and current Regulatory Body rules and regulations.

7.0 STATEMENT OF WORK REQUIRED:

7.1 Provide all labor, tools and materials to troubleshoot and repair the Gyro Compass Nr2 using References 2.1 and 2.2 for guidance; SOLAS V12 and 19.

7.2 Provide the services of an authorized/qualified OEM technical representative (Sperry-NG) to perform all tasks outlined in this work item.

7.3 Coordinate with the Chief Engineer for the isolation and lock-out / tag-out of any equipment or systems.

7.4 All work shall only be accomplished by trained, experienced and authorized service personnel for the specific system. They are also to be trained in electrical safety to avoid personnel injury. As such the worker must be fully aware of the risks associated with his surroundings and be fully knowledgeable of health and safety standards. The equipment does contain Electrostatic Sensitive Devices (ESSDs). Take care not to damage these devices by discharge of electrostatic voltages.

7.5 Temporarily remove access panels for cleaning and inspection. Retain and mark all fasteners for reinstallation.

7.6 Record the Manufacturer name, Model and Serial number of the systems.

7.7 Visually inspect the physical condition of the equipment/systems listed in Paragraph 3.0 and associated wiring for any damage, corrosion, contamination, deterioration or signs of overheating.

7.8 Check gyrocompass system for loose connections and contacts and plugs for proper seating. Verify all ground straps and cable shielding are secure and in good condition. Verify with the ships Chief Engineer that there are no known issues with gyro signal data being received by Repeaters, RADARs, Autopilot, Course Recorder, ODM, AIS, SVDR, NGW, TACAN, INMARSAT, and TVDTS.

7.9 Check all foundations, bracing, gimbals, fittings, wireways, bolts and clamps for condition and tightness.

7.10 Check all stuffing tubes and cable transits verifying all penetrations are watertight.

7.11 Clean the compass housing and repeaters of all dirt, salt and debris using a soft cloth, fresh water and mild soap detergent. Do not use acetone, solvents or chemical-based cleaners.

7.12 Check the last change out date of UPS batteries, if more than 5 years or OEM recommended time period, submit a condition report to replace UPS batteries.

7.13 Check and adjust alignment of ships Gyrocompass systems. The compass is to display the ships true heading to an accuracy of at least 0.5°.

7.14 Test, inspect and verify proper operation of all features, warnings and alarms of the Gyrocompass systems using Manufacturer and IMO requirements as guidance. To include:

7.15 Gyro Failure

7.16 Loss of Magnetic Compass data

7.17 Variation of Magnetic Compass

7.18 Loss of Speed data

7.19 Variation of Speed data

7.20 Loss of Position data

7.21 Heading differential

7.22 Failure of Main Power

7.23 Failure of Backup Power

7.24 Operational Alarms

7.25 Emergency source of electrical power

7.26 Provide a condition report to the OMT REP by individual Gyro summarizing all as found conditions to include revision of software and any recommended parts and repairs.

7.27 Upon approval, reinstall all access panels and covers using existing fasteners leaving the Gyrocompass systems in a ready for service condition.

7.28 Upon completion of repairs, adjustments and tests optimize and tune the systems. Demonstrate satisfactory operation of the ship’s Gyrocompass systems to the OMT REP, Captain and Navigator.

7.29 The equipment addressed in this Statement of Work (SOW) is categorized as critical equipment in accordance with MSC policy on the classification of critical shipboard systems and equipment. Only Original Equipment Manufacturer (OEM) authorized technical field service representatives and OEM parts shall be used to accomplish the requirements of this SOW for this critical equipment including oversight and guidance on all aspects of equipment as-found condition inspection, removal, disassembly, reassembly, repairs, modifications, reinstallation and testing as applicable

7.30 An OEM authorized technical field service representative is defined as either a direct employee of the OEM, or an employee of a company which has a current written agreement with the OEM to provide service and repair for that equipment. The OEM authorized technical field service representative shall have full access to the OEM drawings, technical service bulletins, special tools and OEM replacement parts. The OEM authorized technical field service representative shall provide documentation from the OEM authorizing the company to perform maintenance and repair on their behalf.

8.0 GENERAL REQUIREMENTS:

8.3 COVID-19 Precautions

8.4 Arrange for COVID-19 testing of all personnel planning to attend the vessel and have the results available for review prior to boarding.

8.5 Tests shall be antigen-directed, reverse transcriptase-polymerase chain reaction type (RT-PCR) (not antibody testing).

8.6 Certify to both the Contracting Officer and MSC Rep that NEGATIVE test results have been obtained for all personnel working or supporting this project.

8.7 Notify the MSC Rep of any POSITIVE test result.

8.8 Coordinate with the MSCREP to develop a transit path which will be followed. Contractor will stay on the exterior of the ship to the maximum extent possible and transit directly to and from the bridge. While transiting to the bridge, minimize contact with the ship including bulkheads and handrails as much as possible.

8.9 Minimize the number of personnel required to be onboard the ship to the maximum extent possible. Personnel onboard the ship will observe social distancing precautions. Contractor personnel shall not eat or smoke while onboard the ship.

8.10 Provide and wear proper COVID-19 Personal Protective Equipment to include face masks, eye protection, and gloves.

8.11 Known Source: Authorized Sperry Technician

SSU21-028-4