I'll take that question.
We first noted the slow progress in addressing our recommendations on the TSB Watchlist two years ago, in 2016. At that time we had 52 recommendations that were more than 10 years old, of which 39 were more than 20 years old.
In the ensuing two years, working with Transport Canada and largely due to research we did and looking at what industry has done, we were able to reduce 52 down to 34. However, there were quite a few recommendations, older recommendations, when Transport Canada had promised to give us updated information, and they did not meet the deadlines they set for themselves. As a result, we weren't able to close more.