Air carrier Y had less than standard separation from air carrier X. System error.

Attributes
ACN	192679
Time
Date	199110
Day	Fri
Local Time Of Day	1801 To 2400
Place
Locale Reference	atc facility : pit
State Reference	PA
Altitude	msl bound lower : 2500 msl bound upper : 2500
Environment
Flight Conditions	VMC
Light	Night
Aircraft 1
Controlling Facilities	tracon : pit tower : pit
Operator	common carrier : air carrier
Make Model Name	Light Transport, High Wing, 2 Turboprop Eng
Flight Phase	climbout : initial
Route In Use	enroute : on vectors
Flight Plan	IFR
Aircraft 2
Operator	common carrier : air carrier
Make Model Name	Medium Large Transport, Low Wing, 2 Turbojet Eng
Flight Phase	climbout : initial
Route In Use	enroute : on vectors
Flight Plan	IFR
Person 1
Affiliation	government : faa
Function	controller : local
Qualification	controller : non radar
ASRS Report	192679
Person 2
Affiliation	government : faa
Function	controller : local
Qualification	controller : developmental
Events
Anomaly	conflict : airborne less severe non adherence : published procedure non adherence : required legal separation
Independent Detector	other controllera
Resolutory Action	none taken : anomaly accepted
Consequence	Other
Miss Distance	horizontal : 6000 vertical : 0
Supplementary
Primary Problem	ATC Human Performance
Air Traffic Incident	Operational Error Inter Facility Coordination Failure

Narrative:

Runway 14 ad runway 10C for departures. Air carrier X departed runway 14 on runway heading. When air carrier X was through the 10C intersection and air carrier Y on runway 10C was issued runway heading and cleared for takeoff. Once airborne air carrier X was instructed to turn left to 120 degree and changed to departure control. (Local procedures dictate coordination with departure if aircraft is not turned on course). No coordination with departure was made to keep air carrier X on the 120 degree heading. Air carrier Y (after airborne) was told to turn left leaving 3000 ft (for noise abatement) and told to contact departure. Air carrier X and air carrier Y were parallel with each other about 1 mi apart 1.5 mi east of the airport with air carrier X heading 070 and air carrier Y just starting his left turn to 360 degree. I was training a developmental with no east flow experience at the time. I should have assured the coordination with departure control or stopped air carrier Y at an altitude lower than air carrier X and turned him to 360 degree sooner.

Original NASA ASRS Text

Title: ACR Y HAD LTSS FROM ACR X. SYS ERROR.

Narrative: RWY 14 AD RWY 10C FOR DEPS. ACR X DEPARTED RWY 14 ON RWY HDG. WHEN ACR X WAS THROUGH THE 10C INTXN AND ACR Y ON RWY 10C WAS ISSUED RWY HDG AND CLRED FOR TKOF. ONCE AIRBORNE ACR X WAS INSTRUCTED TO TURN L TO 120 DEG AND CHANGED TO DEP CTL. (LCL PROCS DICTATE COORD WITH DEP IF ACFT IS NOT TURNED ON COURSE). NO COORD WITH DEP WAS MADE TO KEEP ACR X ON THE 120 DEG HDG. ACR Y (AFTER AIRBORNE) WAS TOLD TO TURN L LEAVING 3000 FT (FOR NOISE ABATEMENT) AND TOLD TO CONTACT DEP. ACR X AND ACR Y WERE PARALLEL WITH EACH OTHER ABOUT 1 MI APART 1.5 MI E OF THE ARPT WITH ACR X HDG 070 AND ACR Y JUST STARTING HIS L TURN TO 360 DEG. I WAS TRAINING A DEVELOPMENTAL WITH NO E FLOW EXPERIENCE AT THE TIME. I SHOULD HAVE ASSURED THE COORD WITH DEP CTL OR STOPPED ACR Y AT AN ALT LOWER THAN ACR X AND TURNED HIM TO 360 DEG SOONER.

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.