Less than standard separation between a departing aircraft and an arriving aircraft.

Attributes
ACN	169208
Time
Date	199101
Day	Wed
Local Time Of Day	1201 To 1800
Place
Locale Reference	atc facility : dca
State Reference	DC
Altitude	msl bound lower : 9000 msl bound upper : 9000
Environment
Flight Conditions	Marginal
Light	Daylight
Aircraft 1
Controlling Facilities	tracon : dca
Operator	other
Make Model Name	Light Transport, Low Wing, 2 Turbojet Eng
Flight Phase	cruise other
Route In Use	departure other enroute : on vectors
Flight Plan	IFR
Aircraft 2
Operator	common carrier : air carrier
Make Model Name	Medium Large Transport, Low Wing, 2 Turbojet Eng
Navigation In Use	Other
Flight Phase	descent other
Route In Use	arrival other enroute : on vectors
Flight Plan	IFR
Person 1
Affiliation	government : faa
Function	controller : departure
Experience	controller military : 4 controller radar : 11
ASRS Report	169208
Person 2
Affiliation	government : faa
Function	controller : departure
Qualification	controller : developmental
Events
Anomaly	conflict : airborne less severe non adherence : published procedure non adherence : required legal separation
Independent Detector	other flight crewa
Resolutory Action	controller : issued new clearance none taken : insufficient time
Consequence	Other
Miss Distance	horizontal : 6000 vertical : 0
Supplementary
Primary Problem	ATC Human Performance
Air Traffic Incident	Operational Error Intra Facility Coordination Failure

Narrative:

Light transport X departed andrews AFB on vectors to J227. Medium large transport Y was inbound to dca. Departure control trnee coordination climb to 9000' with arrival controller. Arrival apparently forgot and descended medium large transport Y out of 10000'. Then dca arrival turned medium large transport Y to the northeast to avoid light transport X.

Original NASA ASRS Text

Title: LESS THAN STANDARD SEPARATION BETWEEN A DEPARTING ACFT AND AN ARRIVING ACFT.

Narrative: LTT X DEPARTED ANDREWS AFB ON VECTORS TO J227. MLG Y WAS INBND TO DCA. DEP CTL TRNEE COORD CLB TO 9000' WITH ARR CTLR. ARR APPARENTLY FORGOT AND DSNDED MLG Y OUT OF 10000'. THEN DCA ARR TURNED MLG Y TO THE NE TO AVOID LTT X.

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.