Originally Posted by alliance
It seems clear that you would not earn EQM/EQS on an inter-island M fare, but M class is not listed under "miles not earned in the following classes" for inter-island flights on the airline partner page of nwa.com
http://www.nwa.com/worldperks/earn/airfl.shtml#hawaiian ... ?
Yeah, I ended up calling WorldPerks to confirm. The word I got from the elite line (though the agent could have been misinformed) was that the M class would not earn miles nor EQMs.