<< >> NASA ASRS Report 141607, April 1990

Air carrier X failed to intercept airway as instructed. Pilot deviation. Air carrier X had less than standard separation from air carrier Y. System error.

Attributes
ACN	141607
Time
Date	199004
Place
Locale Reference	atc facility : vyf
State Reference	OH
Altitude	msl bound lower : 33000 msl bound upper : 35000
Environment
Light	Daylight
Aircraft 1
Controlling Facilities	artcc : zid
Operator	common carrier : air carrier
Make Model Name	Any Unknown or Unlisted Aircraft Manufacturer
Flight Phase	climbout : intermediate altitude cruise other descent other
Route In Use	enroute : on vectors enroute : direct
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 : direct
Flight Plan	IFR
Person 1
Affiliation	government : faa
Function	controller : non radar
Qualification	controller : radar
Experience	controller radar : 20
ASRS Report	141607
Person 2
Affiliation	government : faa
Function	controller : radar
Qualification	controller : radar
Events
Anomaly	conflict : airborne less severe non adherence : required legal separation non adherence : clearance non adherence : published procedure other spatial deviation
Independent Detector	other controllera
Resolutory Action	controller : issued new clearance other
Consequence	faa : investigated
Miss Distance	horizontal : 27000 vertical : 1600
Supplementary
Primary Problem	ATC Human Performance
Air Traffic Incident	Operational Error Pilot Deviation

Narrative:

Air carrier X was vectored at FL350 for traffic at FL350 near the gunne intersection. Additional traffic on J80 at FL350 forced the radar controller to descend air carrier X to FL330 to avoid the traffic. Air carrier X was given a heading to intercept J80, however he went through J80 and came within 4 1/2 mi of air carrier Y heading sebnd at FL330. Air carrier X climb back to FL350 after missing traffic was not fast enough to ensure sep with air carrier Y. I feel that air carrier X's climb could have been faster to help the situation, but that he had been vectored and descended for traffic already and was not helping out the situation to get level at FL350.

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Original NASA ASRS Text

Title: ACR X FAILED TO INTERCEPT AIRWAY AS INSTRUCTED. PLT DEVIATION. ACR X HAD LESS THAN STANDARD SEPARATION FROM ACR Y. SYSTEM ERROR.

Narrative: ACR X WAS VECTORED AT FL350 FOR TFC AT FL350 NEAR THE GUNNE INTXN. ADDITIONAL TFC ON J80 AT FL350 FORCED THE RADAR CTLR TO DSND ACR X TO FL330 TO AVOID THE TFC. ACR X WAS GIVEN A HDG TO INTERCEPT J80, HOWEVER HE WENT THROUGH J80 AND CAME WITHIN 4 1/2 MI OF ACR Y HDG SEBND AT FL330. ACR X CLB BACK TO FL350 AFTER MISSING TFC WAS NOT FAST ENOUGH TO ENSURE SEP WITH ACR Y. I FEEL THAT ACR X'S CLB COULD HAVE BEEN FASTER TO HELP THE SITUATION, BUT THAT HE HAD BEEN VECTORED AND DSNDED FOR TFC ALREADY AND WAS NOT HELPING OUT THE SITUATION TO GET LEVEL AT FL350.

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.