Operational error between air carrier X and air carrier Y.

Attributes
ACN	292267
Time
Date	199412
Day	Thu
Local Time Of Day	0601 To 1200
Place
Locale Reference	atc facility : clt
State Reference	NC
Altitude	msl bound lower : 7800 msl bound upper : 7800
Environment
Flight Conditions	VMC
Light	Night
Aircraft 1
Controlling Facilities	tracon : clt tower : buf
Operator	common carrier : air carrier
Make Model Name	Fokker 100
Operating Under FAR Part	Part 121
Flight Phase	climbout : initial climbout : intermediate altitude
Route In Use	departure other enroute : on vectors
Flight Plan	IFR
Aircraft 2
Operator	common carrier : air carrier
Make Model Name	B757 Undifferentiated or Other Model
Operating Under FAR Part	Part 121
Navigation In Use	Other Other
Flight Phase	climbout : initial climbout : intermediate altitude
Route In Use	departure other enroute : on vectors
Flight Plan	IFR
Person 1
Affiliation	government : faa
Function	controller : departure
Qualification	controller : radar
Experience	controller radar : 1
ASRS Report	292267
Person 2
Affiliation	company : air carrier
Function	flight crew : captain oversight : pic
Qualification	pilot : atp
Events
Anomaly	conflict : airborne less severe non adherence : required legal separation non adherence : published procedure other anomaly other
Independent Detector	aircraft equipment other aircraft equipment : unspecified other controllera
Resolutory Action	flight crew : took evasive action other
Consequence	Other
Miss Distance	horizontal : 4500 vertical : 300
Supplementary
Primary Problem	ATC Human Performance
Air Traffic Incident	Operational Error

Narrative:

Aircraft #1 departed clt climbing to 8000 ft, radar idented, and climbed to 12000 ft. Aircraft #2 departed clt after aircraft #1 and climbing to 8000 ft, radar idented and then turned to 070 degree heading inside of aircraft #1. Aircraft #1 was turned to 140 degree heading to intercept the transition. Based on the performance of previous aircraft during this push I estimated and anticipated that aircraft #1 would tip the other aircraft. I continued with other duties and after re-evaluating the situation with the 2 aircraft in question I determined that some other action needed to be taken. I instructed aircraft #2 to maintain 7000 ft (but called the aircraft the wrong call sign) twice and also instructed aircraft #1 to expedite climb and it never responded. At this time aircraft #1 was responding to an RA to descend even though it was on top and the aircraft #2 responded with a climb both were opposite from what I had done and separation was compromised.

Original NASA ASRS Text

Title: OPERROR BTWN ACR X AND ACR Y.

Narrative: ACFT #1 DEPARTED CLT CLBING TO 8000 FT, RADAR IDENTED, AND CLBED TO 12000 FT. ACFT #2 DEPARTED CLT AFTER ACFT #1 AND CLBING TO 8000 FT, RADAR IDENTED AND THEN TURNED TO 070 DEG HDG INSIDE OF ACFT #1. ACFT #1 WAS TURNED TO 140 DEG HDG TO INTERCEPT THE TRANSITION. BASED ON THE PERFORMANCE OF PREVIOUS ACFT DURING THIS PUSH I ESTIMATED AND ANTICIPATED THAT ACFT #1 WOULD TIP THE OTHER ACFT. I CONTINUED WITH OTHER DUTIES AND AFTER RE-EVALUATING THE SIT WITH THE 2 ACFT IN QUESTION I DETERMINED THAT SOME OTHER ACTION NEEDED TO BE TAKEN. I INSTRUCTED ACFT #2 TO MAINTAIN 7000 FT (BUT CALLED THE ACFT THE WRONG CALL SIGN) TWICE AND ALSO INSTRUCTED ACFT #1 TO EXPEDITE CLB AND IT NEVER RESPONDED. AT THIS TIME ACFT #1 WAS RESPONDING TO AN RA TO DSND EVEN THOUGH IT WAS ON TOP AND THE ACFT #2 RESPONDED WITH A CLB BOTH WERE OPPOSITE FROM WHAT I HAD DONE AND SEPARATION WAS COMPROMISED.

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.