<< >> NASA ASRS Report 116545, July 1989

Aircraft was climbed through an altitude occupied by another aircraft resulting in less than standard separation.

Attributes
ACN	116545
Time
Date	198907
Day	Wed
Local Time Of Day	1801 To 2400
Place
Locale Reference	atc facility : jvc
State Reference	FL
Altitude	msl bound lower : 28000 msl bound upper : 28500
Environment
Light	Night
Aircraft 1
Controlling Facilities	artcc : zjx tower : ric
Operator	common carrier : air carrier
Make Model Name	Medium Large Transport, Low Wing, 2 Turbojet Eng
Flight Phase	climbout : intermediate altitude
Flight Plan	IFR
Aircraft 2
Operator	general aviation : corporate
Make Model Name	Small Transport, Low Wing, 2 Turbojet Eng
Flight Phase	cruise other
Flight Plan	IFR
Person 1
Affiliation	government : faa
Function	controller : radar
Qualification	controller : radar
Experience	controller radar : 1
ASRS Report	116545
Person 2
Affiliation	company : air carrier
Function	flight crew : captain oversight : pic
Qualification	pilot : atp
Events
Anomaly	non adherence : published procedure non adherence : required legal separation other spatial deviation
Independent Detector	atc equipment other atc equipment : unspecified other controllera
Resolutory Action	controller : issued new clearance
Consequence	Other
Miss Distance	horizontal : 18000 vertical : 500
Supplementary
Primary Problem	ATC Human Performance
Air Traffic Incident	Operational Error

Narrative:

Small transport Y was southbound at FL280. Air carrier X was northbound at FL270. The majority of the airplanes in my sector were deviating, especially all of the moc departures northbound, due to a line of WX over J53 north of orl VOR. There were multiple situations occurring at the time that required a lot of my attention. I cleared air carrier X to FL290 without realizing that small transport Y was a factor. After I noticed the conflict I took corrective action, but standard separation was lot.

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Original NASA ASRS Text

Title: ACFT WAS CLIMBED THROUGH AN ALT OCCUPIED BY ANOTHER ACFT RESULTING IN LESS THAN STANDARD SEPARATION.

Narrative: SMT Y WAS SBND AT FL280. ACR X WAS NBOUND AT FL270. THE MAJORITY OF THE AIRPLANES IN MY SECTOR WERE DEVIATING, ESPECIALLY ALL OF THE MOC DEPS NBND, DUE TO A LINE OF WX OVER J53 N OF ORL VOR. THERE WERE MULTIPLE SITUATIONS OCCURRING AT THE TIME THAT REQUIRED A LOT OF MY ATTN. I CLRED ACR X TO FL290 WITHOUT REALIZING THAT SMT Y WAS A FACTOR. AFTER I NOTICED THE CONFLICT I TOOK CORRECTIVE ACTION, BUT STANDARD SEPARATION WAS LOT.

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.