24R1308_AMD06.pdf

RFP No. N6274224R1308 Amendment No. 0006

SECTION SF 30 BLOCK 14 CONTINUATION PAGE

The following items are applicable to this modification:

AMENDMENT 0005 – SF30 BLOCK 14 CONTINUATION PAGE

Delete After DOCUMENT 00 73 00 SPECIAL CONTRACT REQUIREMENTS insert the attached JUSTIFICATION AND APPROVAL FOR USE OF OTHER THAN FULL AND OPEN COMPETITION (J&A No. 24-003 and J&A No. 24-008).

DOCUMENT 00 21 16, INSTRUCTIONS TO PROPOSERS

PARA 1.1 NUMBER OF COPIES/TIME OF RECEIPT

Subpara a. Line 2. Delete “30 May 2024” and insert “6 June 2024” Subpara b. Line 2. Delete “30 May 2024” and insert “6 June 2024”

FY25 MCON P-949 AIRCRAFT MAINTENANCE HANGAR

SPECIFICATIONS

SECTION 13 50 00 – IGNITABLE LIQUID DRAINAGE FLOOR ASSEMBLY

Delete Replace with Page 3 Page 3 Amendment No. 0006

FY25 MCON P949 PDI: AIRCRAFT MAINTENANCE HANGAR WON 1737356

RAAF Base Darwin, Australia Final Submittal

UNDERWRITERS LABORATORIES (UL)

UL Fire Prot Dir (2012) Fire Protection Equipment Directory

1.2 SUMMARY

Design and provide a new Ignitable Liquid Drainage Floor Assembly (ILDFA) | by Safespill (manufacturer), including liquid detection sensors, drainage trenches, flushing manifolds, flushing manifold control valves, flushing water booster pump, and control system, as indicated on the drawings and in accordance with applicable codes and standards.

The ILDFA control system, which provides electronic detection, control, and activation must include wiring, raceways and other accessories and miscellaneous items required for a complete operating system even though each item is not specifically mentioned or described.

The design, equipment, materials, installation, and workmanship must comply with FM 6090 , NFPA 70 , and NFPA 409 except as modified herein.

Each system must include all materials, accessories and equipment necessary so that it is complete and ready for use. Design and install each system to give full consideration to piping, electrical equipment, trenches, and all other construction and equipment to provide complete coverage indicated on drawings.

At this time, FM 6090 is the only valid listing that must apply to an

ILDFA.

Provide installation, testing, and acceptance testing of the ILDFA as required by this specification section and the plans.

1.3 GENERAL DESIGN REQUIREMENTS

1.3.1 Hangar Floor Coverage

ILDFA must be installed flush with the top of the hangar concrete floor.

The ILDFA must be sloped to match the slope of the aircraft maintenance bay floor slab (typically between 0.5 % and 1.5 %).

Utilize contract drawings for the actual ILDFA floor coverage area.

1.3.2 Basis of Design and Drainage Trenches

Worst case fuel spill capacity is 14,000 liters with a spill rate of 757 lpm. Total spill duration is 21 minutes.

Worst case flushing manifold activation is 189 lpm multiplied by four zones or 756 lpm.

ILDFA must provide for drainage trenches within the hangar and account for a worst-case flow of 1,514 lpm.

1.3.3 Activation

System activation must be controlled by a control panel that is UL listed or FM Approved for use with ILDFA. Control panel must be provided in a year-round conditioned space as located on the drawings. One control panel must be provided for each hangar bay.

SECTION 13 50 00 Page 3 GSKJV Amendment 0006 SI v5.3