Air carrier X climb through occupied altitude had less than standard separation from aircraft Y. Sys...

Attributes
ACN	268433
Time
Date	199404
Day	Fri
Local Time Of Day	1201 To 1800
Place
Locale Reference	atc facility : ctw
State Reference	OH
Altitude	msl bound lower : 19000 msl bound upper : 19000
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Controlling Facilities	artcc : zob tower : syr
Operator	common carrier : air carrier
Make Model Name	Commercial Fixed Wing
Operating Under FAR Part	Part 121
Flight Phase	climbout : intermediate altitude
Route In Use	enroute : direct
Flight Plan	IFR
Aircraft 2
Operator	common carrier : air carrier
Make Model Name	Commercial Fixed Wing
Operating Under FAR Part	Part 121
Flight Phase	cruise other
Route In Use	enroute : direct
Flight Plan	IFR
Person 1
Affiliation	government : faa
Function	controller : radar
Qualification	controller : radar
Experience	controller radar : 5
ASRS Report	268433
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
Independent Detector	other controllera
Resolutory Action	controller : issued new clearance other
Consequence	faa : investigated
Miss Distance	horizontal : 24000 vertical : 200
Supplementary
Primary Problem	ATC Human Performance
Air Traffic Incident	Operational Error

Narrative:

Prior to the error the person stuffing strips for me took a pointout on an aircraft climbing through my sector. The high altitude sector called and requested a right turn on the aircraft in which I approved leaving FL210. After this the person who took the pointout on that aircraft told me the high altitude sector was expediting that aircraft's climb and to watch him with a slow clber (aircraft X) I had stopped at FL200 to clear my pit inbound traffic and FL210. In the meantime another aircraft checked on frequency who should have been on another frequency. After finding the correct frequency for that aircraft, it took me 2 calls to contact him since another aircraft cut his response out. As I continued on I noticed the slow climbing aircraft X. I stopped earlier at FL200 was only leaving FL192 and an arrival (aircraft Y) into pit made a right turn onto the arrival route was at FL190 doing 500 KTS across the ground. At this time I turned pit arrival (Y) left and descended him. I turned X left. At this time separation was lost.

Original NASA ASRS Text

Title: ACR X CLB THROUGH OCCUPIED ALT HAD LTSS FROM ACFT Y. SYS ERROR.

Narrative: PRIOR TO THE ERROR THE PERSON STUFFING STRIPS FOR ME TOOK A POINTOUT ON AN ACFT CLBING THROUGH MY SECTOR. THE HIGH ALT SECTOR CALLED AND REQUESTED A R TURN ON THE ACFT IN WHICH I APPROVED LEAVING FL210. AFTER THIS THE PERSON WHO TOOK THE POINTOUT ON THAT ACFT TOLD ME THE HIGH ALT SECTOR WAS EXPEDITING THAT ACFT'S CLB AND TO WATCH HIM WITH A SLOW CLBER (ACFT X) I HAD STOPPED AT FL200 TO CLR MY PIT INBOUND TFC AND FL210. IN THE MEANTIME ANOTHER ACFT CHKED ON FREQ WHO SHOULD HAVE BEEN ON ANOTHER FREQ. AFTER FINDING THE CORRECT FREQ FOR THAT ACFT, IT TOOK ME 2 CALLS TO CONTACT HIM SINCE ANOTHER ACFT CUT HIS RESPONSE OUT. AS I CONTINUED ON I NOTICED THE SLOW CLBING ACFT X. I STOPPED EARLIER AT FL200 WAS ONLY LEAVING FL192 AND AN ARR (ACFT Y) INTO PIT MADE A R TURN ONTO THE ARR RTE WAS AT FL190 DOING 500 KTS ACROSS THE GND. AT THIS TIME I TURNED PIT ARR (Y) L AND DSNDED HIM. I TURNED X L. AT THIS TIME SEPARATION WAS LOST.

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.

Air carrier X climb through occupied altitude had less than standard separation from aircraft Y. System error.