SOW _ USNS TIPPECANOE X-BAND 3CM RADAR CASREP.doc

USNS TIPPECANOE

( T-AO 199)

1.0 ABSTRACT

The purpose of this work item is to troubleshoot and repair the aft X-band 3cm Radar due to lightning strike.

2.0 REFERENCES/ENCLOSURES

2.1 References

2.1.1 Tech Manual available onboard.

2.2 Enclosures

2.2.1 Minimum Detection Range

2.2.2 Photos of Radar display

3.0 ITEM LOCATION/DESCRIPTION/QUANTITY

3.1 Locations

3.1.1 Bridge, 07-67-0

3.2 Description/Quantity

4.0 GOVERNMENT FURNISHED EQUIPMENT/MATERIAL/SERVICE: None

5.0 NOTES

5.1 The radar antenna emits electromagnetic radio frequency (RF) energy which can be harmful, particularly to your eyes. All personnel are to be trained on the risks and safety procedures.

5.2 The equipment failed due to lightning strike.

6.0 QUALITY ASSURANCE REQUIREMENTS: None additional

7.0 STATEMENT OF WORK REQUIRED

7.1 Provide and operate equipment and supply all services and assistance to accomplish troubleshooting and repair of item identified in paragraph 3.0.

7.2 Coordinate with ship's force to have associated equipment locked and/or tagged out per ship's lock out/tag out policy. When the maintenance is complete, coordinate with ship's force to have associated equipment unlocked and/or tagged in per ship's lock out/tag out policy.

7.2.1 Prevent the potential risk of being struck by the rotating antenna while personnel are aloft. Turn off the radar power switch before servicing the antenna unit. Post a warning sign near the switch indicating men are aloft and it should not be turned on while the antenna is being serviced.

7.3 All work will only be accomplished by experienced and qualified personnel. They are also to be trained in radar and 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.

7.4 Replace the following components:

7.4 Power supply

7.5 Calibrate step data input to X-band radar.

7.6 Test, inspect and verify proper operation of all features, warnings and alarms of the radar systems using Manufacturer and IMO requirements as guidance to include:

7.6.1 Display Mode: True Motion, North Up and Course Up

7.6.2 Independent, Interswitch and Repeater modes

7.6.3 Range Scales and Range Rings

7.6.4 Auto and manual target acquisition

7.6.5 Range and Bearings

7.6.6 Range detection, see Enclosure 2.2.1

7.6.7 Target Tracking

7.6.8 ARPA

7.6.9 AIS

7.6.10 Closest Point of Approach (CPA) and predicted Time to CPA (TCPA)

7.6.11 Target Data: actual range of target, actual bearing of target, predicted target range at the CPA, predicted time to CPA (TCPA), true course of target, true speed of target.

7.6.12 AIS Target Data: ship's identification, navigational status, position, range, bearing, COG, SOG, CPA and TCPA.

7.6.13 Operation with SARTs and RADAR beacons

7.6.14 Watch Zones (infringe limits)

7.6.15 Target Trails

7.6.16 Heading Lines, Electronic Bearing Lines (EBLs) and Parallel Index lines (PI)

7.6.17 Routes and Waypoints

7.6.18 Collision avoidance

7.6.19 Operational Alarms

7.6.20 Display of Charts (if applicable)

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

7.8 Upon completion of repairs, adjustments and tests optimize and tune the systems. Demonstrate satisfactory operation of the ship's radar systems to the OMT REP, Captain and Navigator. Complete all final test and adjustments with radar when vessel is on ships power.

7.9 Reports

7.9.1 When inspection, service and testing reveal any deficiency a condition report is to be submitted to the OMT REP with recommended repairs and parts required. Submit one electronic copy in Portable Document Format (PDF).

7.9.2 Submit a report that includes "as released" condition of the radar. Submit one electronic copy in Portable Document Format (PDF).

7.9.3 All reports and checklists are to be completed and signed by the person who carried out the inspection and maintenance work and countersigned by the Company's representative.

7.10 Manufacturer's Representative

7.10.1 Provide the services of an OEM authorized field service representative to accomplish all work and testing on the radar identified in section 3.0 ensuring compliance with the manufacturer's standards and performance specifications.

7.10.2 Possible Source:

Barney Cagle

NAVTECH Marine Electronics

293 Kalihi Street

Honolulu, HI 96819

Tel# 808-848-7600

Fax# 808-848-7605 barney.cagle@navtechmarine.com

7.10.3 Provide the OMT REP with a signed letter of qualification from the Original Equipment Manufacturer and certificate of training for the field service representative for the equipment listed in section 3.0 prior to the start of any work.

8.0 GENERAL REQUIREMENTS:

8.1 Period of performance: 24 Nov – 7 Dec 2023

8.2 Location: NBG Pier Tango

Enclosure 2.2.1 TABLE 2 of Reference 2.1.2 Minimum Detection Ranges in Clutter-free Conditions

(NM)

S-Band

(NM)

Small vessel of length 10 m with no radar reflector

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