About a month ago my flight physical came back from NAMI stating that my hearing waiver (mild loss in left ear at 2000Hz only, 40dB) came back as approved for NFO, however, it said nothing about SNA. We sent the flight physical back for clarification. I just got word from my OSO (Marine Corps) that my flight physical came back again with the same approval for NFO but the hearing waiver was denied for SNA. Can anyone make legitimate sense of this considering the fact that the hearing standards are exactly the same for NFO and SNA? Is there someone I can call to dispute this or get it reevaluated by another flight surgeon? Thanks.