Aircraft entered ARTCC sector Y from sector X without coordination. Operational deviation.

Attributes
ACN	123810
Time
Date	198909
Day	Fri
Local Time Of Day	0601 To 1200
Place
Locale Reference	atc facility : gtf
State Reference	MT
Altitude	msl bound lower : 28000 msl bound upper : 31000
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Controlling Facilities	tower : sfo
Operator	common carrier : air carrier
Make Model Name	Any Unknown or Unlisted Aircraft Manufacturer
Flight Phase	descent other
Route In Use	enroute : direct
Flight Plan	IFR
Person 1
Affiliation	government : faa
Function	controller : radar
Qualification	controller : radar
Experience	controller non radar : 5 controller radar : 4
ASRS Report	123810
Person 2
Affiliation	government : faa
Function	controller : radar
Qualification	controller : radar
Events
Anomaly	non adherence : published procedure other anomaly other
Independent Detector	other controllera
Resolutory Action	other
Consequence	Other
Supplementary
Primary Problem	ATC Human Performance
Air Traffic Incident	Operational Deviation Intra Facility Coordination Failure

Narrative:

I was told to split off sector 20 which is a high altitude sector (FL310 and above). The sector had only been decombined for 15 mins when an aircraft reported chop at FL310 and wanted a descent clearance to FL280. I issued the clearance. A few mins later, after responding to other aircraft in the sector, I realized what I had done and pointed the aircraft out to the sector whose airspace the aircraft was descending into. There were no other aircraft at those altitudes. The sector is rarely decombined on our shift and it is the only sector in our specialty with an altitude split. None of the controllers work this sector often enough to become proficient. The aircraft was handed off and turned over to the next sector to control.

Original NASA ASRS Text

Title: ACFT ENTERED ARTCC SECTOR Y FROM SECTOR X WITHOUT COORD. OPERATIONAL DEVIATION.

Narrative: I WAS TOLD TO SPLIT OFF SECTOR 20 WHICH IS A HIGH ALT SECTOR (FL310 AND ABOVE). THE SECTOR HAD ONLY BEEN DECOMBINED FOR 15 MINS WHEN AN ACFT REPORTED CHOP AT FL310 AND WANTED A DESCENT CLRNC TO FL280. I ISSUED THE CLRNC. A FEW MINS LATER, AFTER RESPONDING TO OTHER ACFT IN THE SECTOR, I REALIZED WHAT I HAD DONE AND POINTED THE ACFT OUT TO THE SECTOR WHOSE AIRSPACE THE ACFT WAS DESCENDING INTO. THERE WERE NO OTHER ACFT AT THOSE ALTS. THE SECTOR IS RARELY DECOMBINED ON OUR SHIFT AND IT IS THE ONLY SECTOR IN OUR SPECIALTY WITH AN ALT SPLIT. NONE OF THE CTLRS WORK THIS SECTOR OFTEN ENOUGH TO BECOME PROFICIENT. THE ACFT WAS HANDED OFF AND TURNED OVER TO THE NEXT SECTOR TO CTL.

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.