MlL-STD-1548G
4.1.1.1 Defueled JP8+100 product. Aircraft containing JP-8+100 shall not be defueled unless an imminent emergency exists. The aircraft home station, applicable military Service Control Point (SCP), or Major Command shall be contacted regarding disposition instructions. JP-8+100 product can only be returned to the aircraft from which it was defueled.
4.1.2 Safety. Safety requirements as specified in NFPA 407 shall apply to Type l.
5 DETAlLED REQUlREMENTS
5.1 Type l. Type l refueling at commercial airports shall be performed as specified in ATA Specification 103, except as noted herein.
5.1.1 Jet fuel specification and purity standards. The requirements of ATA Specification 103 shall apply except for the following.
5.1.1.1 Additive injection. There may be a requirement to add additives to the fuel. The additives are Fuel System lcing lnhibitor (FSll) or Static Dissipator Additive (SDA). The only authorized FSll for Department of Defense aircraft is diethylene glycol monomethyl ether. The following additive blending guidance is provided in order to assure proportional injection of the additives. The two basic methods for adding additives into fuel are manual blending and use of an injector.
a. The preferred method is proportional injection using a fuel driven design injector. This type injects additives proportionately at various flow rates.
b. Manually blending additives at various points in the system can be accomplished by several techniques, some of which are described below. When manual blending is performed, additive should first be diluted with the fuel. The greater the dilution, the easier it is for the additive to mix properly.
Fuel additives should not be mixed together in neat form as a cocktail blend for injecting into fuel.
1. Blending additives into bulk airfield tanks can be done by pouring the required quantity of additive into the tank heel followed by a receipt. Care should be taken when manually introducing additive to tank heels to avoid over/under additizing resulting from variations in anticipated vs. actual quantities received. The required quantity of additive may also be added to the delivery tank trucks just prior to offloading into bulk tanks.
2. Blending into refueling units can be performed by introducing the required amount through the top hatch using a funnel and a length of hose with one end submerged below the surface of the fuel. This can best be accomplished by pouring the additive into the refueler, filled to not more than one-third of its capacity and then filling the unit with fuel. Wait approximately 10 minutes and then circulate fuel for at least three minutes before servicing to aircraft. lf additives are put into a full
refueler, circulate at least 150 percent of the refueler capacity prior to issue.
c. When required, fuel system icing inhibitor (FSll) may be added using the 590 mL (20 ounce) aerosol can during over-wing refueling. Determine the fuel load and calculate the amount of additive required. lt should be added gradually during filling to permit proper blending in the fuel. One can of aerosol additive will inhibit 680 liters (180 gallons) of fuel to 0.087% by volume.
d. When FSll and/or static dissipator additive (SDA) is injected into fuel the following concentration levels apply: Fuel injected with FSll shall contain 0.07 - 0.20 vol. % FSll content; if the fuel is injected with SDA, the SDA content shall be between 50 and 700 conductivity units (CU).
5.1.2 Hydrant system checks. The requirements of ATA Specification 103 shall apply, except that for any modifications, changes, or construction work to hydrant systems, the contractor shall also notify the contracting officer.
5.1.3 Aircraft fueling equipment requirements. The requirements of ATA Specification 103 shall apply, except for electrostatic bonding, the following specific equipment shall be required.
5.1.3.1 Electrostatic Bonding.
5.1.3.1.1 Grounding plug. When the aircraft being serviced is equipped with grounding receptacles, a grounding plug conforming to or equivalent in design to MlL-DTL-83413/4 shall be used.
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