Where is the water glycol located on a B737-800 (BSI)?

The water glycol system is essential for de-icing and anti-icing functions on the Boeing 737-800, particularly in areas where the aircraft is most exposed to ice accumulation during operations. It is located in two critical areas: both the G2 forward face, which is essential for service and access during boarding and de-boarding, and above the R2 jumpseat, ensuring that crew members have immediate accessibility to the de-icing fluid.

Having this system located in both places allows for enhanced operational efficiency and safety. It ensures that both the flight crew and cabin crew can access the water glycol quickly, which is crucial during winter operations or in adverse weather conditions. Accessibility in these locations also accommodates the needs of inflight service while ensuring that de-icing measures are always within reach as necessary.

The other options do not encompass the full range of access points for the water glycol system, as they focus on single locations that may lack the operational versatility required in flight operations. This comprehensive placement is vital for its effectiveness during flights, especially during critical phases of taxiing, take-off, or landing in icy conditions.