Narrative:

Phl on runway 27L. Jets depart on a 255 degree heading. Air carrier X; a B717; departed runway 27L and climbed to 5000 ft on a 255 degree heading. Next departure was an air carrier Y jet that climbed to 5000 ft on a 255 degree heading. Air carrier X was 6 mi west at 4000 ft and not talking to nd but was on lw's frequency. I was working sd. I was busy working other traffic and didn't get to talk to air carrier Y until 4 mi 2 at approximately 4200 ft. Nd told me to turn air carrier Y and I did immediately to turn away from the B717. The turn increased the separation. Supplemental information from acn 669942: while working the north departure position at phl; I observed an air carrier X B717 depart runway 27L on a 255 degree heading for vectors to his first departure fix in my airspace. As the aircraft climbed through 4000 ft for 5000 ft; I realized the aircraft was not on my frequency after repeated attempts to contact him. It was at this time I observed the BE40 depart phl on the same heading. After contacting the local controller to see where air carrier X was; I discovered he was still on the local controller's frequency. My intent was to get control of air carrier X to turn him on course away from the BE40 that was closing.

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Original NASA ASRS Text

Title: PHL LCL CTLR EXPERIENCED AN OPERROR AS SECOND DEP ACFT OVERTOOK FIRST ACFT AT APPROX 4000 FT.

Narrative: PHL ON RWY 27L. JETS DEPART ON A 255 DEG HDG. ACR X; A B717; DEPARTED RWY 27L AND CLBED TO 5000 FT ON A 255 DEG HDG. NEXT DEP WAS AN ACR Y JET THAT CLBED TO 5000 FT ON A 255 DEG HDG. ACR X WAS 6 MI W AT 4000 FT AND NOT TALKING TO ND BUT WAS ON LW'S FREQ. I WAS WORKING SD. I WAS BUSY WORKING OTHER TFC AND DIDN'T GET TO TALK TO ACR Y UNTIL 4 MI 2 AT APPROX 4200 FT. ND TOLD ME TO TURN ACR Y AND I DID IMMEDIATELY TO TURN AWAY FROM THE B717. THE TURN INCREASED THE SEPARATION. SUPPLEMENTAL INFO FROM ACN 669942: WHILE WORKING THE N DEP POS AT PHL; I OBSERVED AN ACR X B717 DEPART RWY 27L ON A 255 DEG HDG FOR VECTORS TO HIS FIRST DEP FIX IN MY AIRSPACE. AS THE ACFT CLBED THROUGH 4000 FT FOR 5000 FT; I REALIZED THE ACFT WAS NOT ON MY FREQ AFTER REPEATED ATTEMPTS TO CONTACT HIM. IT WAS AT THIS TIME I OBSERVED THE BE40 DEPART PHL ON THE SAME HDG. AFTER CONTACTING THE LCL CTLR TO SEE WHERE ACR X WAS; I DISCOVERED HE WAS STILL ON THE LCL CTLR'S FREQ. MY INTENT WAS TO GET CTL OF ACR X TO TURN HIM ON COURSE AWAY FROM THE BE40 THAT WAS CLOSING.

Data retrieved from NASA's ASRS site as of January 2009 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.