What is the maximum dry ice load allowed in the cargo compartment of an E170?

The maximum dry ice load allowed in the cargo compartment of an E170 is indeed 300 lbs. This limitation is in place due to safety considerations related to the transport of dry ice, which is solid carbon dioxide and sublimates to carbon dioxide gas. Excessive amounts of dry ice can cause an increase in cabin pressure due to the accumulation of CO2 gas, potentially leading to hazardous conditions.

Regulatory authorities, including the FAA, have established limits for the transport of dry ice to ensure that the aircraft's cargo compartment can adequately ventilate and prevent the buildup of carbon dioxide levels that could pose a risk to the crew and passengers. The 300 lbs limit is designed to mitigate these risks while still allowing for the transport of materials that require dry ice for refrigeration or preservation.

Understanding this limitation is crucial for maintaining safety and compliance during operations with the aircraft.