Air carrier was climbed through the altitude of another aircraft resulting in less than standard sep...

Attributes
ACN	128173
Time
Date	198911
Day	Thu
Local Time Of Day	0601 To 1200
Place
Locale Reference	atc facility : vhp airport : zid
State Reference	IN
Altitude	msl bound lower : 10300 msl bound upper : 11000
Environment
Light	Daylight
Aircraft 1
Operator	general aviation : personal
Make Model Name	Small Transport, Low Wing, 2 Recip Eng
Flight Phase	cruise other
Route In Use	enroute airway : zid
Flight Plan	IFR
Aircraft 2
Operator	common carrier : air carrier
Make Model Name	Medium Large Transport, Low Wing, 2 Turbojet Eng
Flight Phase	climbout : intermediate altitude
Route In Use	departure other
Flight Plan	IFR
Person 1
Affiliation	government : faa
Function	controller : radar
Qualification	controller : radar
Experience	controller non radar : 3 controller radar : 4
ASRS Report	128173
Person 2
Affiliation	Other
Function	flight crew : single pilot
Qualification	pilot : instrument
Events
Anomaly	conflict : airborne less severe non adherence : published procedure non adherence : required legal separation
Independent Detector	atc equipment other atc equipment : unspecified other controllera
Resolutory Action	controller : issued new clearance
Consequence	Other
Miss Distance	horizontal : 3000 vertical : 700
Supplementary
Primary Problem	ATC Human Performance
Air Traffic Incident	Operational Error

Narrative:

Small transport X was level at 11,000' working the next controller. The data block was dropped. Air carrier Y off ind was climbed to FL230 through small transport X's altitude. The mistake was noticed and air carrier Y was told to maintain 10,000'. However, the clearance was issued too late to maintain separation.

Original NASA ASRS Text

Title: ACR WAS CLIMBED THROUGH THE ALT OF ANOTHER ACFT RESULTING IN LESS THAN STANDARD SEPARATION.

Narrative: SMT X WAS LEVEL AT 11,000' WORKING THE NEXT CTLR. THE DATA BLOCK WAS DROPPED. ACR Y OFF IND WAS CLIMBED TO FL230 THROUGH SMT X'S ALT. THE MISTAKE WAS NOTICED AND ACR Y WAS TOLD TO MAINTAIN 10,000'. HOWEVER, THE CLRNC WAS ISSUED TOO LATE TO MAINTAIN SEPARATION.

Data retrieved from NASA's ASRS site as of August 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 was climbed through the altitude of another aircraft resulting in less than standard separation.