<< >> NASA ASRS Report 210420, May 1992

Aircraft X uncoord penetration of adjacent facility airspace had less than standard separation from aircraft Y. System error.

Attributes
ACN	210420
Time
Date	199205
Day	Fri
Local Time Of Day	1201 To 1800
Place
Locale Reference	atc facility : pdz
State Reference	CA
Altitude	msl bound lower : 5000 msl bound upper : 5000
Environment
Flight Conditions	Marginal
Light	Daylight
Aircraft 1
Controlling Facilities	tracon : sna tracon : ont
Operator	general aviation : personal
Make Model Name	Any Unknown or Unlisted Aircraft Manufacturer
Flight Phase	cruise other
Route In Use	enroute : on vectors
Flight Plan	IFR
Aircraft 2
Make Model Name	Any Unknown or Unlisted Aircraft Manufacturer
Flight Phase	cruise other
Route In Use	enroute : direct
Flight Plan	IFR
Person 1
Affiliation	government : faa
Function	controller : approach
Qualification	controller : developmental controller : radar
Experience	controller non radar : 2 controller radar : 2
ASRS Report	210420
Person 2
Affiliation	government : faa
Function	controller : approach
Qualification	controller : radar
Events
Anomaly	conflict : airborne less severe non adherence : required legal separation non adherence : published procedure other anomaly other
Independent Detector	other controllera
Resolutory Action	none taken : detected after the fact
Consequence	faa : investigated
Miss Distance	horizontal : 6000 vertical : 0
Supplementary
Primary Problem	ATC Human Performance
Air Traffic Incident	Operational Error Intra Facility Coordination Failure

Narrative:

Turned an aircraft X nebound due to confusion with meaning of an LOA and complexity of LOA this caused aircraft X to lose IFR separation with an aircraft Y being worked by an adjacent facility. Situation was also exasperated by lack of proficiency on radar sector due to accelerated training on other sectors.

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Original NASA ASRS Text

Title: ACFT X UNCOORD PENETRATION OF ADJACENT FACILITY AIRSPACE HAD LTSS FROM ACFT Y. SYS ERROR.

Narrative: TURNED AN ACFT X NEBOUND DUE TO CONFUSION WITH MEANING OF AN LOA AND COMPLEXITY OF LOA THIS CAUSED ACFT X TO LOSE IFR SEPARATION WITH AN ACFT Y BEING WORKED BY AN ADJACENT FACILITY. SITUATION WAS ALSO EXASPERATED BY LACK OF PROFICIENCY ON RADAR SECTOR DUE TO ACCELERATED TRAINING ON OTHER SECTORS.

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.