Heading track deviation.

Attributes
ACN	206710
Time
Date	199204
Day	Wed
Local Time Of Day	1201 To 1800
Place
Locale Reference	atc facility : bmg
State Reference	NY
Altitude	msl bound lower : 17000 msl bound upper : 17400
Environment
Flight Conditions	IMC
Light	Daylight
Aircraft 1
Operator	common carrier : air carrier
Make Model Name	Light Transport, High Wing, 2 Turboprop Eng
Flight Phase	cruise other
Route In Use	enroute airway : zny
Flight Plan	IFR
Aircraft 2
Operator	general aviation : corporate
Make Model Name	Small Aircraft, High Wing, 1 Eng, Retractable Gear
Flight Phase	cruise other
Route In Use	enroute : direct
Flight Plan	VFR
Person 1
Affiliation	company : air carrier
Function	flight crew : captain oversight : pic
Qualification	pilot : commercial pilot : instrument pilot : atp
Experience	flight time last 90 days : 150 flight time total : 5500 flight time type : 590
ASRS Report	206710
Person 2
Affiliation	company : air carrier
Function	flight crew : first officer
Qualification	pilot : commercial pilot : instrument
Events
Anomaly	conflict : airborne less severe non adherence : clearance non adherence : required legal separation other anomaly other other spatial deviation
Independent Detector	aircraft equipment other aircraft equipment : unspecified other controllera
Resolutory Action	flight crew : took evasive action
Consequence	Other
Miss Distance	horizontal : 6000 vertical : 400
Supplementary
Primary Problem	Flight Crew Human Performance
Air Traffic Incident	Pilot Deviation

Narrative:

ATC advised us of VFR small aircraft Y traffic at 17500 opposite direction traffic. We were IMC and advised ATC of such. We saw traffic on TCASII approaching at 12 O'clock. When traffic was approximately 1 mi in front of us the TCASII showed traffic at 17400 ft and descending. We turned right as the TCASII displayed a RA to descend. At all times, we were in instrument conditions and at no time did we ever sight the traffic visually, the TCASII showed traffic at 400 ft above us and less than 1 mi. We continued the trip without further incident.

Original NASA ASRS Text

Title: HDG TRACK DEV.

Narrative: ATC ADVISED US OF VFR SMA Y TFC AT 17500 OPPOSITE DIRECTION TFC. WE WERE IMC AND ADVISED ATC OF SUCH. WE SAW TFC ON TCASII APCHING AT 12 O'CLOCK. WHEN TFC WAS APPROX 1 MI IN FRONT OF US THE TCASII SHOWED TFC AT 17400 FT AND DSNDING. WE TURNED R AS THE TCASII DISPLAYED A RA TO DSND. AT ALL TIMES, WE WERE IN INST CONDITIONS AND AT NO TIME DID WE EVER SIGHT THE TFC VISUALLY, THE TCASII SHOWED TFC AT 400 FT ABOVE US AND LESS THAN 1 MI. WE CONTINUED THE TRIP WITHOUT FURTHER INCIDENT.

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.