CRP CTLR EXPERIENCED OPDEV WITH ACFT ENTRY INTO MEXICAN AIRSPACE WITHOUT RELEASE.

Narrative

ACFT X WAS LEAVING AN UNCTLED FIELD (PIL; CAMERON COUNTY; TX) FOR TLC; MEXICO. ACFT X CALLED CLRNC DELIVERY FOR HIS IFR CLRNC. 'FD' READ THE CLRNC AND THEN COORDINATED WITH MAM (MAMAMOROS; MEXICO) TO GET A REVISED ROUTING. REVISED ROUTINGS ARE A NORMAL OCCURRENCE WHEN FLYING TO MEXICO. ACFT X WAS ISSUED THE REVISED ROUTING BY CLRNC DELIVERY. SOME TIME PASSED AND ACFT X CALLED READY FOR IFR DEP FROM PIL. I (THE RADAR CTLR) GAVE HIM HIS DEP CLRNC AND RELEASE. HE CHKED ON AIRBORNE AND WAS VECTORED ON COURSE APPROX 5-7 MI N OF THE BRO VOR; ACFT X WAS LEAVING 8000 FT MSL AND I TERMINATED RADAR SVC (MAM IS NON RADAR APCH) AND SWITCHED HIM TO MAM APCH CTL. NOW; AS ACFT X WAS PASSING OVER MAM VOR; MAM CALLED BACK AND SAID THEY HAD NO INFO ON THIS ACFT. I SAID THAT WE HAD JUST RECEIVED A RERTE FROM THEM. THEY SAID THEY DID HAVE A FLT PLAN BUT NO RELEASE. WE NORMALLY ASK FOR RELEASE AND PASS AN EXPECTED TIME OVER A FIX FOR THEM TO USE NON RADAR TIMING. I THOUGHT 'FD' HAD GOTTEN A TIME WHEN PASSING THE FLT PLAN AND HE DIDN'T KNOW I ALSO WANTED A RELEASE FROM MEXICO. HUMAN FACTORS ARE INVOLVED; IN THAT CONFUSION WAS PRESENT AS A RESULT OF MISCOM AND LCL ORDERS STATE THAT COORDINATORS ARE RESPONSIBLE FOR COORD; BUT USUALLY THOSE POS ARE COMBINED TO RADAR. IF FLT DATA GETS RERTES; IT WOULD SEEM SIMPLER TO HAVE THEM GET RELEASES AT THE SAME TIME INSTEAD OF INCREASING THE RADAR CTLR'S WORKLOAD.