Air Traffic Control Fully Certified
Air Traffic Control Time Certified In Pos 1 (yrs) 10.0
Communication Breakdown; Situational Awareness
ATC Issue All Types; Airspace Violation All Types; Deviation / Discrepancy - Procedural FAR; Deviation / Discrepancy - Procedural Clearance; Deviation / Discrepancy - Procedural Published Material / Policy
Air Traffic Control Issued New Clearance
ATC Equipment / Nav Facility / Buildings; Airspace Structure; Human Factors; Procedure
We were in CENRAP (Center Radar ARTS Presentation) status during event. Local Control had issued Aircraft X to proceed on course and climb and maintain 12;000 feet. Then Aircraft X was transferred to Departure Control (the position I was currently working). Aircraft X came over to me; stating the following: 'Aircraft X WITH YOU ON COURSE AND CLIMBING.' I responded:'Aircraft X; DEPARTURE; CONTINUE YOUR CLIMB.'I erroneously did not verify the Aircraft X's altitude when he initially came to me; so that was first mistake. Then I told him to continue his climb; which was my second mistake. I told him to continue his climb reference the facility being in CENRAP and was awaiting the radar scope to receive a primary target hit so that I would have a method to radar contact him. I did not anticipate the pilot to climb outside of his assigned altitude which was given to him during his takeoff clearance from Local Control. The pilot was radar identified and continued on his flight.I was shortly thereafter relieved from position and gave the new controller the briefing. Then the Aircraft X climbed outside of our airspace and entered into Center's airspace and was shortly NORDO while at 14;000 feet in Center's airspace.I recommend that I shall continue to work as I have when the facility is not in CENRAP and have the pilot verify their altitude if it is not initially given on first contact. I will also never use the term 'CONTINUE YOUR CLIMB'; as it is not proper phraseology and it does not include an altitude limit to the climb.
MLU TRACON Controller used nonstandard phraseology and did not confirm that an aircraft they received was climbing to the correct altitude.