Original Message

135.267 allows for an extension of flight times within a 14 hour maximum 14-hour duty period. It does NOT permit the extension of the duty period. (Moody - Lorelei Peter ACCR) August 22, 2017

Enroute delays can be an exception such as ATC, weather or maintenance(enroute).

The FAA has specified in the above cited letter, that the exception for delays only apply to the last enroute leg.

Excerpts from Tripony Lorelei Peter letter July 10 2018