Air carrier issud a climb through an occupied altitude resulting in less than standard separation.

Attributes
ACN	157517
Time
Date	199009
Day	Sat
Local Time Of Day	0601 To 1200
Place
Locale Reference	atc facility : rod
State Reference	OH
Altitude	msl bound lower : 35000 msl bound upper : 37000
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Controlling Facilities	artcc : zid
Operator	common carrier : air carrier
Make Model Name	Heavy Transport, Low Wing, 4 Turbojet Eng
Flight Phase	climbout : intermediate altitude
Route In Use	enroute : direct
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	cruise other
Route In Use	enroute : direct
Flight Plan	IFR
Person 1
Affiliation	company : air carrier
Function	flight crew : captain oversight : pic
Qualification	pilot : atp
Experience	flight time last 90 days : 150 flight time total : 9000 flight time type : 2500
ASRS Report	157517
Person 2
Affiliation	company : air carrier
Function	flight crew : first officer
Qualification	pilot : atp
Experience	flight time last 90 days : 100 flight time total : 4200 flight time type : 100
ASRS Report	157252
Events
Anomaly	conflict : airborne less severe non adherence : published procedure non adherence : required legal separation
Independent Detector	other controllera
Resolutory Action	controller : issued new clearance
Consequence	Other
Miss Distance	horizontal : 6000 vertical : 500
Supplementary
Primary Problem	ATC Human Performance
Air Traffic Incident	Operational Error

Narrative:

We were climbing out through FL350 on a scheduled trip from sdf-jfk. WX was clear. We were about 20 NM southwest of rod on a direct route from cvg to rod. Indy center (125.07) told us to make an 'immediate' right turn 20 degree adn in the same transmission told air carrier Y to make an 'immediate' right turn 20 degree. We both complied and in the turn we saw them pass just off our left at the same altitude. At that speed and altitude an immediate turn is dangerous in itself. The increased 'G' forces could cause a high speed mach buffet, loss of altitude, and control. It seems as though the controller forgot about both of us, and we never saw air carrier Y until he passed off our left side.

Original NASA ASRS Text

Title: ACR ISSUD A CLIMB THROUGH AN OCCUPIED ALT RESULTING IN LESS THAN STANDARD SEPARATION.

Narrative: WE WERE CLBING OUT THROUGH FL350 ON A SCHEDULED TRIP FROM SDF-JFK. WX WAS CLR. WE WERE ABOUT 20 NM SW OF ROD ON A DIRECT RTE FROM CVG TO ROD. INDY CTR (125.07) TOLD US TO MAKE AN 'IMMEDIATE' R TURN 20 DEG ADN IN THE SAME XMISSION TOLD ACR Y TO MAKE AN 'IMMEDIATE' R TURN 20 DEG. WE BOTH COMPLIED AND IN THE TURN WE SAW THEM PASS JUST OFF OUR L AT THE SAME ALT. AT THAT SPD AND ALT AN IMMEDIATE TURN IS DANGEROUS IN ITSELF. THE INCREASED 'G' FORCES COULD CAUSE A HIGH SPD MACH BUFFET, LOSS OF ALT, AND CTL. IT SEEMS AS THOUGH THE CTLR FORGOT ABOUT BOTH OF US, AND WE NEVER SAW ACR Y UNTIL HE PASSED OFF OUR L SIDE.

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.