Page 76 - BAA CAFR 2017

BIRMINGHAM AIRPORT AUTHORITY
REQUIRED SUPPLEMENTARY INFORMATION (Unaudited)

Notes to the above schedule (continued):

 The BackDROP utilization assumption was lowered from 100% for all groups to
40% for General Employees, 90% for Firefighters and 70% for Police Officers.
 The turnover assumption for all groups was modified from a five-year select-and
ultimate assumption based on age to an assumption based on years of service. The
rates reflect higher rates during earlier periods of employment. The rates for
General Employees are higher than the rates for Police and Fire. The ultimate rate
was set to zero for Police and Fire employees with twenty or more years of service.
 The disability rates were modified for all groups to better reflect actual experience
and expected future patterns. The on-the-job disability assumption was lowered
from 100% to 80% of all disabilities for Firefighters only.
 The percent married assumption was lowered from 80% to 75%.