Pct controller experienced operational error with climbing C17 and MD88 at 8000 ft.

Attributes
ACN	619484
Time
Date	200406
Day	Thu
Local Time Of Day	1201 To 1800
Place
Locale Reference	airport : dca.airport
State Reference	DC
Altitude	msl single value : 17000
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Controlling Facilities	tracon : pct.tracon
Operator	other
Make Model Name	C17
Operating Under FAR Part	Part 91
Flight Phase	climbout : intermediate altitude
Route In Use	enroute : on vectors
Flight Plan	IFR
Aircraft 2
Controlling Facilities	tracon : pct.tracon
Operator	common carrier : air carrier
Make Model Name	MD-88
Operating Under FAR Part	Part 121
Flight Phase	climbout : intermediate altitude
Route In Use	enroute : on vectors
Flight Plan	IFR
Person 1
Affiliation	government : faa
Function	controller : departure
Qualification	controller : radar
Experience	controller radar : 18 controller time certified in position1 : 10
ASRS Report	619484
Person 2
Affiliation	government : military
Function	flight crew : captain oversight : pic
Events
Anomaly	conflict : airborne less severe non adherence : required legal separation
Independent Detector	other controllera
Resolutory Action	controller : issued new clearance controller : issued alert
Consequence	faa : investigated
Miss Distance	horizontal : 7800 vertical : 600
Supplementary
Problem Areas	ATC Human Performance
Primary Problem	ATC Human Performance
Air Traffic Incident	Operational Error

Narrative:

Military C17 was climbed to 17000 ft. I climbed MD88 underneath. I should have used my normal procedure and stopped the MD88 1000 ft below the traffic. I climbed and turned when I could have waited.

Original NASA ASRS Text

Title: PCT CTLR EXPERIENCED OPERROR WITH CLBING C17 AND MD88 AT 8000 FT.

Narrative: MIL C17 WAS CLBED TO 17000 FT. I CLBED MD88 UNDERNEATH. I SHOULD HAVE USED MY NORMAL PROC AND STOPPED THE MD88 1000 FT BELOW THE TFC. I CLBED AND TURNED WHEN I COULD HAVE WAITED.

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.