ALPA has updated the reference material for FAR 117.
Air Line Pilots Association International
Update concerning Cumulative Limitations and the Implemention date of FAR 117.
The following letter to ALPA and A4A, clarifies the FAA’s position, but more information is pending.
Wykoff and Mullen – (2013) Legal Interpretation
The link to the previous post concerning this topic is here:
Understanding FAR 117 