J-1 SN25-045 USNS JOHN LEWIS GAS FREE - SAFE FOR ENTRY CERTIFICATION (002).pdf
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This document is a Service Order for Gas Free - Safe for Entry Certification for the USNS JOHN LEWIS (T-AO 205), issued on 15 September 2025. The service order requires a Certified Commercial Marine Chemist to inspect and certify 26 tanks (DFM, JP-5, and ballast tanks) during the period of 10-19 October 2025, with an estimated four days of visits (two on a weekend). The marine chemist will issue a "Safe for Entry Certificate" to permit ship personnel and contractors to enter cargo tanks for cleaning, and a Marine Port Authority (MPA) Chemist will conduct a final inspection to issue a "Gas Free Certificate for Shipyard Entry" at PSA Sembawang, Singapore. The vessel is a US Navy Fleet Oiler with a gross tonnage of 49,850 tons, and the point of contact for this service order is Richard Garrison, Supervisory Port Engineer at the Maintenance Hub Singapore.
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USNS JOHN LEWIS
(T-AO 205)
Service Order SN 25-045
15 SEPT 2025
Category A MSC/MHSG /N7/WPR
GAS FREE – SAFE FOR ENTRY CERTIFICATION
1.0 ABSTRACT:
1.1 Provide a Certified Commercial Marine Chemist, to issue a “Safe for Entry
Certificate” which will permit the ship’s personnel and/or contractors to enter the cargo tanks for cleaning and provide a Marine Port Authority (MPA) Chemist to conduct final inspection and issue a “Gas Free Certificate for Shipyard Entry” to the ship.
2.0 REFERENCES:
2.1 Booklet of general drawings: Available on board the vessel
3.0 VESSEL DESCRIPTION:
3.1 Vessel Name: USNS JOHN LEWIS
3.2 Class: ABS (Maltese cross) A1, Fuel Oil Carrier, Ice Class C, (E), AMS, ACCU
3.3 Displacement 32,547 LT
3.4 Gross Tonnage: 49850 tons
3.5 US Navy Fleet Oiler
4.0 GOVERNMENT FURNISHED EQUIPMENT/MATERIALS/SERVICES: None
5.0 NOTES: NONE
6.0 QUALITY ASSURANCE REQUIREMENTS: None.
7.0 STATEMENT OF WORK REQUIRED:
7.1 Provide the services of a certified “Marine Chemist” to inspect/certify and issue a
“Safe for Entry Certificate” for twenty six (19) tanks (DFM, JP-5, and ballast tanks) during the period of performance 10 – 19 OCT 2025. These tanks should be previously cleaned and ventilated by the ship’s crew.
7.2 The Marine Chemist’s schedule of inspection/certification for “Safe Entry” will be determined or coordinated by ship’s force to coincide with the Tank Cleaning
Schedule. For pricing purposes estimate four (4) separate days of visit for the
Marine Chemist. Assume 2 of the 4 days will occur on a weekend.
Service Order SN 25-045
7.3 Provide a Marine Port Authority (MPA) Chemist for final inspection of the gas-free status of the ship and upon completion of inspection’ issue a “Gas Free
Certification for Shipyard Entry” to the ship.
7.4 The following are the ship’s International Tonnage Certificate for reference:
Name of Vessel USNS JOHN LEWIS (T-AO 205)
Type of Vessel / Last
Cargo Tanker / Diesel Fuel, Grade 'E' or lower
Call Sign / Flag NJLS / USA
Gross Tonnage (GT) 49850 tons
Date of Arrival
(ETA)
10 OCT 2025
Date & Time of
Inspection
10 – 19 OCT 2025
Location of Vessel PSA Sembawang, Singapore
Purpose of Inspection Commercial Gas Free Inspection – Safe for Entry
Certification
8.0 GENERAL REQUIREMENTS:
8.1 Sources: Maritime and Port Authority (MPA) of Singapore
Emergency Response & Inspectorate Section
(Fax: 6375-2429) (Tel: 6375-2422)
8.2 Complete and submit the below embedded spreadsheet to POC Richard Garrison
(Supervisory Port Engineer) for processing access request and approval to enter the Port and go onboard the vessel.
MAN PSA Access Jan
13 2025.xlsx
8.3 Personnel that will require to go onboard must complete and return the embedded spreadsheet below.
8.4 POC: Richard Garrison
Supervisory Port Engineer
Maintenance Hub Singapore
Email: Richard.Garrison26.civ@us.navy.mil
Cell: +65-9722-7051
Service Order SN 25-045
Jeremy Tunstall
Port Engineer
Maintenance Hub Singapore
Email: Jeremy.s.tunstall.civ@us.navy.mil
Cell: +1 (843) 414- 2798
Office: +65-6750-2731 mailto:Jeremy.s.tunstall.civ@us.navy.mil
File details come from the government source that posted it. Updated .