B350 off phl overtakes and out-climbs an A321 resulting in a loss of separation.

Attributes
ACN	634375
Time
Date	200410
Day	Mon
Local Time Of Day	1201 To 1800
Place
Locale Reference	navaid : ptw.vortac
State Reference	PA
Altitude	msl bound lower : 11005 msl bound upper : 12000
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Controlling Facilities	tracon : phl.tracon
Operator	common carrier : air carrier
Make Model Name	A321
Operating Under FAR Part	Part 121
Flight Phase	climbout : intermediate altitude
Flight Plan	IFR
Aircraft 2
Controlling Facilities	tracon : phl.tracon
Operator	general aviation : personal
Make Model Name	Super King Air 350
Operating Under FAR Part	Part 91
Flight Phase	climbout : intermediate altitude
Flight Plan	IFR
Person 1
Affiliation	government : faa
Function	controller : departure
Qualification	controller : radar
Experience	controller radar : 15
ASRS Report	634375
Person 2
Affiliation	company : air carrier
Function	flight crew : captain oversight : pic
Events
Anomaly	non adherence : required legal separation non adherence : published procedure
Independent Detector	atc equipment other atc equipment : radar/mode c aircraft equipment : tcas other controllera other flight crewa other flight crewb
Resolutory Action	controller : issued advisory controller : issued new clearance flight crew : took evasive action none taken : detected after the fact
Supplementary
Problem Areas	ATC Human Performance
Primary Problem	ATC Human Performance
Air Traffic Incident	Operational Error

Narrative:

Vectoring the B350 for ptw VOR while vectoring the A321 for same route. Traffic was given well prior to the event also a vector was given to the A321, once I assumed the A321 would out-climb the B350. Turned him back to the VOR and the B350 well out-climbed the A321.

Original NASA ASRS Text

Title: B350 OFF PHL OVERTAKES AND OUT-CLBS AN A321 RESULTING IN A LOSS OF SEPARATION.

Narrative: VECTORING THE B350 FOR PTW VOR WHILE VECTORING THE A321 FOR SAME RTE. TFC WAS GIVEN WELL PRIOR TO THE EVENT ALSO A VECTOR WAS GIVEN TO THE A321, ONCE I ASSUMED THE A321 WOULD OUT-CLB THE B350. TURNED HIM BACK TO THE VOR AND THE B350 WELL OUT-CLBED THE A321.

Data retrieved from NASA's ASRS site as of July 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.