J-1 SN25-045 USNS JOHN LEWIS GAS FREE - SAFE FOR ENTRY CERTIFICATION 19 Sep 2025.pdf
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This Service Order details requirements for gas free and safe for entry certification for the USNS JOHN LEWIS (T-AO 205), a US Navy Fleet Oiler located in Singapore. The service order requires a certified Marine Chemist to inspect and certify 23 tanks (DFM, JP-5, and ballast tanks) during the period of 11-19 OCT 2025, with an estimated four days of visits, including two weekend days. Additionally, the order calls for a Marine Port Authority (MPA) Chemist to conduct a final inspection and issue a "Gas Free Certification for Shipyard Entry", and 10 laborers to assist the ship's crew with tank cleaning over 9 days.
The vessel will be located at PSA Sembawang, Singapore, with an estimated arrival date of 11 OCT 2025. The service order specifies coordination with the Maritime and Port Authority (MPA) of Singapore's Emergency Response & Inspectorate Section, and provides contact information for Richard Garrison (Supervisory Port Engineer) and Jeremy Tunstall (Port Engineer) from the Maintenance Hub Singapore. The vessel's details include a gross tonnage of 49,850 tons, classification as an ABS Fuel Oil Carrier, and its last cargo being diesel fuel, grade 'E' or lower.
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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 three (23) tanks (DFM, JP-5, and ballast tanks) during the period of performance 11 – 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 Provide labor to assist ship’s crew with cleaning of (23) tanks. These tanks should be previously ventilated by the ship’s crew. For estimating purposes assume 10
Labors will be required for 9 days.
7.5 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)
11 OCT 2025
Date & Time of
Inspection
11 – 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
Service Order SN 25-045
Maintenance Hub Singapore
Email: Richard.Garrison26.civ@us.navy.mil
Cell: +65-9722-7051
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 .