Mlt was descended to an altitude occupied by another aircraft.

Attributes
ACN	111558
Time
Date	198905
Day	Sun
Local Time Of Day	0601 To 1200
Place
Locale Reference	atc facility : hto
State Reference	NY
Altitude	msl bound lower : 31000 msl bound upper : 33000
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Controlling Facilities	artcc : zbw
Operator	other
Make Model Name	Medium Large Transport, Low Wing, 2 Turbojet Eng
Flight Phase	descent other
Route In Use	enroute : on vectors
Flight Plan	IFR
Aircraft 2
Operator	common carrier : air carrier
Make Model Name	Large Transport, Low Wing, 3 Turbojet Eng
Flight Phase	cruise other
Flight Plan	IFR
Person 1
Affiliation	government : faa
Function	controller : radar
Qualification	controller : radar
ASRS Report	111558
Person 2
Affiliation	government : military
Function	flight crew : captain oversight : pic
Qualification	pilot : military
Events
Anomaly	non adherence : published procedure non adherence : required legal separation
Independent Detector	atc equipment other atc equipment : unspecified other controllera
Resolutory Action	other
Consequence	Other
Miss Distance	horizontal : 24000 vertical : 1500
Supplementary
Primary Problem	ATC Human Performance
Air Traffic Incident	Operational Error

Narrative:

A military mlt flight was descended and vectored for intrail spacing. Vertical separation did not exist before the flight path of the mlt crossed the flight path of the air carrier.

Original NASA ASRS Text

Title: MLT WAS DESCENDED TO AN ALT OCCUPIED BY ANOTHER ACFT.

Narrative: A MIL MLT FLT WAS DESCENDED AND VECTORED FOR INTRAIL SPACING. VERTICAL SEPARATION DID NOT EXIST BEFORE THE FLT PATH OF THE MLT CROSSED THE FLT PATH OF THE ACR.

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.