The Federal Home Loan Bank of Chicago is in the midst of crafting an “unusual” plan to supplement the Bank’s current affordable housing and community investment programs with $50 million in additional funds to be used to promote housing and economic development throughout its district.According to a filing the Chicago Bank made with the Securities and Exchange Commission late last month, the three-year initiative will be in addition to the Bank’s current Affordable Housing Program (AHP) grant process and is part of an agreement with the FHLBank regulator, the Federal Housing Finance Agency.“We are in the process of developing the framework for the use of these funds which will be deployed by the end of 2014,” explained the Bank in its Dec. 27 SEC filing. “This program will be in addition to our other community investment programs in 2012, 2013 and 2014.”