<< >> NASA ASRS Report 565816, November 2002

Loss of separation between an MD90 and a CRJ2 occurred when S56 controller working arrs from the north may not have made a timely pointout.

Attributes
ACN	565816
Time
Date	200211
Day	Mon
Local Time Of Day	1801 To 2400
Place
Locale Reference	navaid : tch.vortac
State Reference	US
Altitude	msl single value : 12000
Environment
Flight Conditions	VMC
Light	Night
Aircraft 1
Controlling Facilities	tracon : s56.tracon
Operator	common carrier : air carrier
Make Model Name	MD-90 Series (DC-9-90) Undifferentiated or Other Model
Operating Under FAR Part	Part 121
Navigation In Use	other vortac
Flight Phase	descent : approach
Route In Use	arrival : on vectors
Flight Plan	IFR
Aircraft 2
Controlling Facilities	tracon : s56.tracon
Operator	common carrier : air carrier
Make Model Name	Regional Jet 200 ER&LR
Operating Under FAR Part	Part 121
Flight Phase	descent : approach
Route In Use	arrival star : n/s
Flight Plan	IFR
Person 1
Affiliation	government : faa
Function	controller : approach
Qualification	controller : radar
Experience	controller time certified in position1 : 14
ASRS Report	565816
Person 2
Affiliation	government : faa
Function	controller : approach
Events
Anomaly	conflict : airborne less severe non adherence : published procedure non adherence : required legal separation
Independent Detector	atc equipment other atc equipment : radar other controllera other controllerb
Resolutory Action	controller : issued new clearance
Consequence	faa : investigated
Miss Distance	horizontal : 12000 vertical : 200
Supplementary
Problem Areas	ATC Human Performance
Primary Problem	ATC Human Performance
Air Traffic Incident	Operational Error Intra Facility Coordination Failure

Narrative:

Aircraft #1 was being vectored for sequence from the west of slc with north arrs. Aircraft #1 was vectored to avoid another aircraft entering my airspace at 12000 ft, descending to 11000 ft. After aircraft #1 was turned into the downwind, aircraft #2 (also high) overtook aircraft #1 closest proximity 2 mi in-trail, 200 ft vertical. Procedures, practices, and beliefs have been utilized during this arrival bank involving a wide variety of aircraft. The practices being utilized are and were not specific. Coordination of responsibilities was not accomplished. Pointouts for aircraft entering my airspace were not accomplished. The other sector had given normal speed to the aircraft #2. Neither the controller, coordinator, nor traffic management coordinator watching/working this sector took action or were aware of the situation until coordinated with. My fault was non specific coordination on the first call. Receiving controller couldn't get anything useful from the coordination even though it addressed their aircraft being high and fast!

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Original NASA ASRS Text

Title: LOSS OF SEPARATION BTWN AN MD90 AND A CRJ2 OCCURRED WHEN S56 CTLR WORKING ARRS FROM THE N MAY NOT HAVE MADE A TIMELY POINTOUT.

Narrative: ACFT #1 WAS BEING VECTORED FOR SEQUENCE FROM THE W OF SLC WITH N ARRS. ACFT #1 WAS VECTORED TO AVOID ANOTHER ACFT ENTERING MY AIRSPACE AT 12000 FT, DSNDING TO 11000 FT. AFTER ACFT #1 WAS TURNED INTO THE DOWNWIND, ACFT #2 (ALSO HIGH) OVERTOOK ACFT #1 CLOSEST PROX 2 MI IN-TRAIL, 200 FT VERT. PROCS, PRACTICES, AND BELIEFS HAVE BEEN UTILIZED DURING THIS ARR BANK INVOLVING A WIDE VARIETY OF ACFT. THE PRACTICES BEING UTILIZED ARE AND WERE NOT SPECIFIC. COORD OF RESPONSIBILITIES WAS NOT ACCOMPLISHED. POINTOUTS FOR ACFT ENTERING MY AIRSPACE WERE NOT ACCOMPLISHED. THE OTHER SECTOR HAD GIVEN NORMAL SPD TO THE ACFT #2. NEITHER THE CTLR, COORDINATOR, NOR TFC MGMNT COORDINATOR WATCHING/WORKING THIS SECTOR TOOK ACTION OR WERE AWARE OF THE SIT UNTIL COORDINATED WITH. MY FAULT WAS NON SPECIFIC COORD ON THE FIRST CALL. RECEIVING CTLR COULDN'T GET ANYTHING USEFUL FROM THE COORD EVEN THOUGH IT ADDRESSED THEIR ACFT BEING HIGH AND FAST!

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.