What does PHAA stand for?

Airman Apprentice, Photographer's Mate, Striker - Navy rating

P&H - NCIC trailer make code

Percheron Horse Association of America (EA)

Photographer's Airman Apprentice - Navy

Positive High-Angle of Attack

Pritikin Health Association of Australia (SAUS)

Professional Horsemen's Association of America - Later, PHA (EA)