Altitude heading track deviation by an A320 PIC when opposite direction traffic descends above and ahead of his flight with a high rate of descent 30 mi southeast of djb, oh.

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Attributes
ACN	541137
Time
Date	200203
Day	Fri
Local Time Of Day	1201 To 1800
Place
Locale Reference	navaid : djb.vortac
State Reference	OH
Altitude	msl bound lower : 23200 msl bound upper : 24000
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Controlling Facilities	artcc : zob.artcc
Operator	common carrier : air carrier
Make Model Name	A320
Operating Under FAR Part	Part 121
Flight Phase	descent : intermediate altitude
Flight Plan	IFR
Aircraft 2
Controlling Facilities	artcc : zob.artcc
Operator	common carrier : air carrier
Make Model Name	Commercial Fixed Wing
Operating Under FAR Part	Part 121
Flight Phase	descent : intermediate altitude
Flight Plan	IFR
Person 1
Affiliation	company : air carrier
Function	flight crew : captain oversight : pic
Qualification	pilot : atp pilot : cfi pilot : flight engineer
Experience	flight time last 90 days : 180 flight time total : 14000 flight time type : 1400
ASRS Report	541137
Person 2
Affiliation	company : air carrier
Function	flight crew : first officer
Events
Anomaly	altitude deviation : excursion from assigned altitude non adherence : clearance other anomaly other other spatial deviation
Independent Detector	aircraft equipment : tcas other flight crewa
Resolutory Action	controller : issued new clearance flight crew : took evasive action other
Consequence	faa : reviewed incident with flight crew
Miss Distance	horizontal : 1500 vertical : 1500
Supplementary
Problem Areas	Flight Crew Human Performance ATC Human Performance Aircraft
Primary Problem	Aircraft

Narrative:

Other aircraft appeared on TCASII at 6-7 mi at 12 O'clock position, showing 1300 ft above us and descending. TCASII told us to descend. I did, and turned slightly to the right. We had been level at FL240. I went to about FL232 before we could talk to center. They told us to continue descent to FL220. This was not an near midair collision. I believe it happened due to high rate of descent of the target aircraft as he went to FL250.

Original NASA ASRS Text

Title: ALT HDG TRACK DEV BY AN A320 PIC WHEN OPPOSITE DIRECTION TFC DSNDS ABOVE AND AHEAD OF HIS FLT WITH A HIGH RATE OF DSCNT 30 MI SE OF DJB, OH.

Narrative: OTHER ACFT APPEARED ON TCASII AT 6-7 MI AT 12 O'CLOCK POS, SHOWING 1300 FT ABOVE US AND DSNDING. TCASII TOLD US TO DSND. I DID, AND TURNED SLIGHTLY TO THE R. WE HAD BEEN LEVEL AT FL240. I WENT TO ABOUT FL232 BEFORE WE COULD TALK TO CTR. THEY TOLD US TO CONTINUE DSCNT TO FL220. THIS WAS NOT AN NMAC. I BELIEVE IT HAPPENED DUE TO HIGH RATE OF DSCNT OF THE TARGET ACFT AS HE WENT TO FL250.

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.