Air carrier X had less than standard separation from air carrier Y. System error.

Attributes
ACN	191070
Time
Date	199110
Day	Tue
Local Time Of Day	0601 To 1200
Place
Locale Reference	atc facility : ndb
State Reference	NC
Altitude	msl bound lower : 35000 msl bound upper : 35000
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Controlling Facilities	artcc : zdc tower : tpa
Operator	common carrier : air carrier
Make Model Name	Any Unknown or Unlisted Aircraft Manufacturer
Flight Phase	cruise other
Route In Use	enroute : on vectors
Flight Plan	IFR
Aircraft 2
Operator	common carrier : air carrier
Make Model Name	Any Unknown or Unlisted Aircraft Manufacturer
Flight Phase	cruise other
Route In Use	enroute : on vectors
Flight Plan	IFR
Person 1
Affiliation	government : faa
Function	controller : radar
Qualification	controller : radar
Experience	controller radar : 23
ASRS Report	191070
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	other controllera
Resolutory Action	controller : issued new clearance other
Consequence	faa : investigated
Miss Distance	horizontal : 27000 vertical : 1000
Supplementary
Primary Problem	ATC Human Performance
Air Traffic Incident	Operational Error

Narrative:

Because of WX at mia/fll all aircraft had to be rerted inland. Numerous rertes, vectors and speed control were being given to provide necessary spacing to ZJX. Air carrier X was slowed to fit in slot on J121 that was being created. This resulted in an overtake situation with air carrier Y 15 mi in trail. After other clrncs were given I noticed the situation. I turned air carrier X to the west, turned air carrier Y to the east, climbed air carrier Y, resumed speed on air carrier X. This resulted in approximately 4.5 mi and 1000 ft.

Original NASA ASRS Text

Title: ACR X HAD LTSS FROM ACR Y. SYS ERROR.

Narrative: BECAUSE OF WX AT MIA/FLL ALL ACFT HAD TO BE RERTED INLAND. NUMEROUS RERTES, VECTORS AND SPD CTL WERE BEING GIVEN TO PROVIDE NECESSARY SPACING TO ZJX. ACR X WAS SLOWED TO FIT IN SLOT ON J121 THAT WAS BEING CREATED. THIS RESULTED IN AN OVERTAKE SITUATION WITH ACR Y 15 MI IN TRAIL. AFTER OTHER CLRNCS WERE GIVEN I NOTICED THE SITUATION. I TURNED ACR X TO THE W, TURNED ACR Y TO THE E, CLBED ACR Y, RESUMED SPD ON ACR X. THIS RESULTED IN APPROX 4.5 MI AND 1000 FT.

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.