Air Traffic Control Fully Certified
Air Traffic Control Time Certified In Pos 1 (yrs) 7.5
Confusion; Situational Awareness; Troubleshooting; Training / Qualification
ATC Issue All Types; Conflict Airborne Conflict; Deviation - Altitude Crossing Restriction Not Met; Deviation - Altitude Overshoot; Deviation / Discrepancy - Procedural Clearance
Air Traffic Control Issued New Clearance; Flight Crew Returned To Clearance
Human Factors; Procedure
MCO was north and Aircraft X was climbing via the EPCOT SID except maintaining 16 thousand; Aircraft X failed to comply with the BLOSM crossing at or below 7;000 and continued a climb up to approximately 085 feet prior to reaching BLOSM. Aircraft X was turned left to 240 heading to avoid conflict with Aircraft Y.  Had Aircraft Y been further along the STAR lateral track only TCAS would have prevented a NMAC.We have had several of these events since we started using Climb Via procedures while on a North operation.  I believe this has something to do with the top altitude published on the SID's; 'as assigned by ATC.'  The tower sends clearances with a top altitude of 7 thousand via PDC.  Then when the aircraft departs; approach uses either 'except maintain 16 thousand' to comply with crossing restrictions or 'climb and maintain 16 thousand' if no restrictions are needed while climbing on the SID.It is my belief that when pilots are climbing via the SID; they have a higher probability of making an error by erroneously deleting the BLOSM crossing of 7 thousand when they hear; 'except maintain 16 thousand.'As a result; I suggest several things to continue climb via with safety in mind: First; we need to publish SID's on a North Operation with a Top Altitude of 16 thousand.  Second; while we are waiting for the SID's to be re-published; MCO ATCT will need to begin communicating 16 thousand as the top altitude when departing north.  The tower can accomplish this via PDC or while the aircraft is taxiing to the runway with Ground Control.  We want the pilots to input this information when they're in a position of less task saturation.If we're unable to do the above steps or a variation of; then we need to discontinue climb via procedures for safety of the NAS.
F11 TRACON Controller reported a problem with a departure from MCO and an arrival aircraft that led to an airborne conflict.