Narrative:

Roanoke departing runway 15 with parte departure. Helicopter X departed roa on parte departure climbing to 5000. At 3 mi from airport, local control (recently qualified on local control) lets air carrier Y, light transport depart on same departure procedure. When local control advised me that the light transport was airborne, I immediately turned the helicopter 60 degree left to a heading of 090, at that time the light transport called on initial contact climbing to 5000. The air carrier jet was turned 50 degree right to a heading of 200 and told to maintain 4000 which in only a few more mi would be below the MEA. When the aircraft were each established on their headings the targets passed within 1 mi of each other at an altitude of 4000 and 4800' respectively. If I had been extremely busy or just occupied momentarily the aircraft both would have merged at the same altitude 4 southeast of roanoke. (Both aircraft initially were given the parte 3 departure with a climb to 5000'.) local control immediately lost separation when the air carrier Y was cleared for takeoff, and evasive action had to be taken on initial contact by departure control. Watch supervisor contacted, no action taken. (Local controller was recently checked out and is assigned a staff position at roa.)

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Original NASA ASRS Text

Title: LESS THAN STANDARD SEPARATION BETWEEN HELICOPTER X AND ACR Y. SYSTEM ERROR.

Narrative: ROANOKE DEPARTING RWY 15 WITH PARTE DEP. HELI X DEPARTED ROA ON PARTE DEP CLIMBING TO 5000. AT 3 MI FROM ARPT, LCL CTL (RECENTLY QUALIFIED ON LC) LETS ACR Y, LTT DEPART ON SAME DEP PROC. WHEN LCL CTL ADVISED ME THAT THE LTT WAS AIRBORNE, I IMMEDIATELY TURNED THE HELI 60 DEG LEFT TO A HDG OF 090, AT THAT TIME THE LTT CALLED ON INITIAL CONTACT CLIMBING TO 5000. THE ACR JET WAS TURNED 50 DEG RIGHT TO A HDG OF 200 AND TOLD TO MAINTAIN 4000 WHICH IN ONLY A FEW MORE MI WOULD BE BELOW THE MEA. WHEN THE ACFT WERE EACH ESTABLISHED ON THEIR HDGS THE TARGETS PASSED WITHIN 1 MI OF EACH OTHER AT AN ALT OF 4000 AND 4800' RESPECTIVELY. IF I HAD BEEN EXTREMELY BUSY OR JUST OCCUPIED MOMENTARILY THE ACFT BOTH WOULD HAVE MERGED AT THE SAME ALT 4 SE OF ROANOKE. (BOTH ACFT INITIALLY WERE GIVEN THE PARTE 3 DEP WITH A CLIMB TO 5000'.) LCL CTL IMMEDIATELY LOST SEPARATION WHEN THE ACR Y WAS CLRED FOR TKOF, AND EVASIVE ACTION HAD TO BE TAKEN ON INITIAL CONTACT BY DEP CTL. WATCH SUPVR CONTACTED, NO ACTION TAKEN. (LCL CTLR WAS RECENTLY CHECKED OUT AND IS ASSIGNED A STAFF POSITION AT ROA.)

Data retrieved from NASA's ASRS site as of August 2007 and automatically converted to unabbreviated mixed upper/lowercase text. This report is for informational purposes with no guarantee of accuracy. See NASA's ASRS site for official report.