3-Year Look Back:
When Alitalia joined the JV we modified PWA 1.P in 2010 via MOU 14, to account for the extra flying Alitalia was bringing to the European side of the JV. We managed to secure a gain from a 47% share to a 50% share of the JV Capacity, but gave the company a 3-year window to comply with a 1.5% up/down tolerance. Failure to meet the 3-year share minimum average starts a 1-year clock to cure the contractual breach.

The first 3-year time frame to measure the 50% was April 1, 2011 to March 31, 2014. Going forward we will measure the 3-years average every April 1st.
Looking back on April 1, 2014 the company failed to reach even the lower limit of 48.5% for our share of flying. This started the one-year cure period. The company had 1 year to meet the goal by March 31, 2015. Again measured on a 3-year look-back.

On April 1, 2015, Delta failed to meet even the lower limit which was the basis for the grievance that netted $30M.

Unfortunately the problem of flying less than the contractual share remains. On March 31, 2016 there will be another 3-year look-back measurement. And because we have flown well under our share for the last 4 years, the company will once again come up short and will be subject to another grievance.
We've accumulated a 4-year flying debt. Delta has made one payment. We have three more years of accumulated underages to go. Delta still isn't showing signs it is interested in reversing the trend.

By switching to a 1-year look back now, we are resetting the clock, discarding accumulated flying debt, opening a new 2-year window and won't have any recourse until April 1, 2017. Why would we do that?

Cheers
George