Petitioner's station sales representative duties included passenger service, ticket counter, ramp, control, operations and gate agent. Petitioner also had cashier duties. The control and operations agent positions were desk duties. The other positions were not. All full-time station sales representatives must work mandatory overtime as set out in the collective bargaining agreement, depending on Mexicana's needs.
Overtime is needed if flights are delayed or baggage is lost.
Overtime duty is determined by order of reverse seniority. Petitioner was injured in April 1991, when a baggage cart rolled over her right foot. She sought medical attention in November 1992, after noticing a lump on her foot. Surgery on her injured foot followed in January 1994. She was off work until May 2, 1994.