Aircraft climbed through an occupied altitude, resulting in less than standard separation.

Attributes
ACN	128208
Time
Date	198911
Day	Wed
Local Time Of Day	1201 To 1800
Place
Locale Reference	airport : laf
State Reference	IN
Altitude	msl bound lower : 3000 msl bound upper : 4000
Environment
Flight Conditions	Marginal
Light	Dusk
Aircraft 1
Controlling Facilities	tracon : laf
Operator	common carrier : air taxi
Make Model Name	Small Transport
Flight Phase	climbout : initial
Route In Use	departure other
Flight Plan	IFR
Aircraft 2
Operator	common carrier : air carrier
Make Model Name	Small Transport
Flight Phase	cruise other
Flight Plan	IFR
Person 1
Affiliation	government : faa
Function	controller : approach
Qualification	controller : non radar
Experience	controller non radar : 8
ASRS Report	128208
Person 2
Affiliation	company : air taxi
Function	flight crew : single pilot
Qualification	pilot : commercial pilot : instrument
Events
Anomaly	non adherence : published procedure non adherence : required legal separation other anomaly other
Independent Detector	other controllera
Resolutory Action	none taken : anomaly accepted
Consequence	Other
Miss Distance	horizontal : 15000 vertical : 0
Supplementary
Primary Problem	ATC Human Performance
Air Traffic Incident	Operational Error

Narrative:

Atx X departed runway 28 at XA48 on a 270 degree heading, climbing to 6000'. Air carrier Y was estimating the bossy intersection at XA53Z, level at 3000'. Air carrier Y had a clearance limit of vages, which is 12 mi southeast of bossy. Vages is approximately 14 mi west of lafayette airport. Situation given didn't appear to allow for vertical sep in accordance with 7110.65.

Original NASA ASRS Text

Title: ACFT CLIMBED THROUGH AN OCCUPIED ALT, RESULTING IN LESS THAN STANDARD SEPARATION.

Narrative: ATX X DEPARTED RWY 28 AT XA48 ON A 270 DEG HDG, CLBING TO 6000'. ACR Y WAS ESTIMATING THE BOSSY INTXN AT XA53Z, LEVEL AT 3000'. ACR Y HAD A CLRNC LIMIT OF VAGES, WHICH IS 12 MI SE OF BOSSY. VAGES IS APPROX 14 MI W OF LAFAYETTE ARPT. SITUATION GIVEN DIDN'T APPEAR TO ALLOW FOR VERT SEP IN ACCORDANCE WITH 7110.65.

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.