Aircraft overtook another at the same altitude resulting in less than standard separation.

Attributes
ACN	125005
Time
Date	198910
Day	Wed
Local Time Of Day	0601 To 1200
Place
Locale Reference	atc facility : aml airport : iad
State Reference	VA
Altitude	msl bound lower : 9000 msl bound upper : 9000
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Controlling Facilities	tracon : iad
Operator	common carrier : air carrier
Make Model Name	Small Transport
Flight Phase	cruise other
Route In Use	departure other
Flight Plan	IFR
Aircraft 2
Make Model Name	Small Aircraft
Flight Phase	cruise other
Route In Use	departure other
Flight Plan	IFR
Person 1
Affiliation	government : faa
Function	controller : departure
Qualification	controller : radar
Experience	controller military : 3 controller radar : 5
ASRS Report	125005
Person 2
Affiliation	government : faa
Function	controller : departure
Qualification	controller : developmental
Experience	controller military : 6
ASRS Report	124990
Events
Anomaly	non adherence : published procedure non adherence : required legal separation
Independent Detector	other controllera
Resolutory Action	controller : issued new clearance
Consequence	Other
Miss Distance	horizontal : 9000 vertical : 800
Supplementary
Primary Problem	ATC Human Performance
Air Traffic Incident	Operational Error

Narrative:

While providing OJT instruction on north departure/south departure the following occurred: both aircraft on same route climbing to same altitude. Coordination was made with ZDC for small aircraft Y to remain at 9000' and air carrier X to climb to 10000'. We failed to climb air carrier X to 10000', and he was left at 9000'. The 2 aircraft were switched to ZDC by deviation west/O resolving the conflict. I instructed deviation to call ZDC and climb air carrier X.

Original NASA ASRS Text

Title: ACFT OVERTOOK ANOTHER AT THE SAME ALT RESULTING IN LESS THAN STANDARD SEPARATION.

Narrative: WHILE PROVIDING OJT INSTRUCTION ON N DEP/S DEP THE FOLLOWING OCCURRED: BOTH ACFT ON SAME ROUTE CLBING TO SAME ALT. COORD WAS MADE WITH ZDC FOR SMA Y TO REMAIN AT 9000' AND ACR X TO CLB TO 10000'. WE FAILED TO CLB ACR X TO 10000', AND HE WAS LEFT AT 9000'. THE 2 ACFT WERE SWITCHED TO ZDC BY DEV W/O RESOLVING THE CONFLICT. I INSTRUCTED DEV TO CALL ZDC AND CLB ACR X.

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.