<< >> NASA ASRS Report 627300, August 2004

An A319 on a northbound near ape encounters a DC9 that had been on an eastbound course, but suddenly turned onto an airway toward the A319.

Attributes
ACN	627300
Time
Date	200408
Day	Wed
Local Time Of Day	0601 To 1200
Place
Locale Reference	navaid : ape.vortac
State Reference	OH
Altitude	msl single value : 29000
Environment
Flight Conditions	VMC
Weather Elements	Turbulence
Light	Daylight
Aircraft 1
Controlling Facilities	artcc : zid.artcc
Operator	common carrier : air carrier
Make Model Name	A319
Operating Under FAR Part	Part 121
Flight Phase	cruise : level
Route In Use	enroute : on vectors
Flight Plan	IFR
Aircraft 2
Controlling Facilities	artcc : zid.artcc
Operator	common carrier : air carrier
Make Model Name	DC-9 Undifferentiated or Other Model
Operating Under FAR Part	Part 121
Flight Phase	cruise : level
Route In Use	enroute : on vectors
Flight Plan	IFR
Person 1
Affiliation	government : faa
Function	controller : radar instruction : instructor
Qualification	controller : radar
Experience	controller radar : 20
ASRS Report	627300
Person 2
Affiliation	government : faa
Function	instruction : trainee
Qualification	controller : developmental controller : military
Experience	controller limited radar : 2 controller military : 6
ASRS Report	627301
Events
Anomaly	conflict : airborne critical inflight encounter : turbulence non adherence : published procedure non adherence : required legal separation
Independent Detector	atc equipment : conflict alert atc equipment other atc equipment : radar/mode c other controllera other controllerb other flight crewa other flight crewb
Resolutory Action	controller : issued new clearance
Miss Distance	horizontal : 0 vertical : 400
Supplementary
Problem Areas	ATC Human Performance
Primary Problem	ATC Human Performance
Air Traffic Incident	Operational Error

Narrative:

While conducting ojti (on the job training instructor), sector was becoming busy with aircraft because of chop above our sector. Traffic was increasing and had a northbound aircraft X at FL290 and an eastbound aircraft Y. Aircraft Y turned down the airway at the edge of the sector and issued turns on northbound aircraft X to avoid aircraft Y. Supplemental information from an 627301: while training on my first session at the sector, the sector became busy and I was overwhelmed with calls and increasing traffic. Aircraft Y turned down the airway at the sector boundary, the trainer observed the turn and issued turns to aircraft Y and aircraft X.

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Original NASA ASRS Text

Title: AN A319 ON A NBOUND NEAR APE ENCOUNTERS A DC9 THAT HAD BEEN ON AN EBOUND COURSE, BUT SUDDENLY TURNED ONTO AN AIRWAY TOWARD THE A319.

Narrative: WHILE CONDUCTING OJTI (ON THE JOB TRAINING INSTRUCTOR), SECTOR WAS BECOMING BUSY WITH ACFT BECAUSE OF CHOP ABOVE OUR SECTOR. TFC WAS INCREASING AND HAD A NBOUND ACFT X AT FL290 AND AN EBOUND ACFT Y. ACFT Y TURNED DOWN THE AIRWAY AT THE EDGE OF THE SECTOR AND ISSUED TURNS ON NBOUND ACFT X TO AVOID ACFT Y. SUPPLEMENTAL INFO FROM AN 627301: WHILE TRAINING ON MY FIRST SESSION AT THE SECTOR, THE SECTOR BECAME BUSY AND I WAS OVERWHELMED WITH CALLS AND INCREASING TFC. ACFT Y TURNED DOWN THE AIRWAY AT THE SECTOR BOUNDARY, THE TRAINER OBSERVED THE TURN AND ISSUED TURNS TO ACFT Y AND ACFT X.

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.