Eclipse 500
Air Traffic Control Fully Certified
Communication Breakdown; Confusion; Situational Awareness
Deviation - Track / Heading All Types; Deviation / Discrepancy - Procedural Published Material / Policy; Deviation / Discrepancy - Procedural Clearance; Inflight Event / Encounter CFTT / CFIT
Air Traffic Control Issued New Clearance
Chart Or Publication; Human Factors; Procedure
Falcon Tower requested a release on an EA50. The aircraft departed on the Mesa One Departure but turned northbound to join his flight plan instead of remaining on the SID and flying southwest bound. The aircraft was level at 3;000 FT and only a mile from a 4;500 FT MVA by the time I established radio communication. I climbed the aircraft to 6;000 FT but it still entered the 4;500 FT MVA while it was at 3;000 FT. I asked the pilot if it could maintain its own terrain clearance. The pilot responded affirmative so I instructed the aircraft to do that then coordinated with the adjacent sectors for a hand off. There seems to be a lot of problems with pilots understanding the Mesa One SID; maybe some education or a better description on the SID itself to help with confusion.
P50 Controller described a below MVA event involving a FFZ departure assigned a MESA1.MESA SID. The Controller claimed that the aircraft turned in the wrong direction; adding that pilots seem to misunderstand the published procedure.