737 Flight Crew Operations Manual
Supplementary Procedures Chapter SP
Anti–Ice, Rain Section 3
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D6-27370-866-EGP SP.3.1
3 Anti–Ice, RainAnti–Ice, RainFile Highlight
Anti–Ice Operation
Requirements for use of anti–ice and operational procedures for engine
and wing anti–ice are contained in Supplementary Procedures, Adverse
Weather Section SP.16.
Cold-Soaked Fuel Frost ( CSFF )
Frost may form on the lower and upper wing surfaces due to cold-soaked
fuel touching the wing surface after long flights with large fuel loads.
Exterior Safety Inspection - Airplanes with Defined
Cold-Soaked Fuel Frost Area
Note: The presence of the painted cold soaked fuel frost area on the
upper wing and the inclusion of these procedures in the FCOM
do not constitute operational approval. Operators may be
allowed to use these procedures by referring to the appropriate
regulatory authority for approval or exemption, as required, to
implement the procedure.
Surfaces.......................................................................................... Check
Visually inspect the lower and upper wing surfaces.
Cold-Soaked Fuel Frost Area
Allowable
UPPER SKIN FUEL CONTACT AREA
September 24, 2015
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