Based on what Air Canada has told me, there are a number of factors. It merged with Canadian, 10 years ago, which means that the percentage of bilingual employees dropped suddenly from 60% to 40%. Then, at the time of the merger, there was a group of employees who were upset, according to Air Canada about the way they were treated during the merger. This created various problems within the organization for reasons unrelated to the provision of service in both official languages.
It also claims to have difficulty, even with individuals who have completed immersion programs, in meeting the bilingualism standards to which the company is subject outside Quebec and the National Capital Region.
The aeronautics industry is also suffering economic problems. We were told that, in a given period, when the company almost went bankrupt, the situation was quite dire. There were other priorities, such as keeping the company alive.
I think that the best people to answer that question in detail would be Air Canada representatives because they are the ones subject to such obligations.