B727-200 and an MD80 had a TCASII TA in roc class east airspace.

Attributes
ACN	504635
Time
Date	200103
Day	Thu
Local Time Of Day	1201 To 1800
Place
Locale Reference	airport : roc.airport
State Reference	NY
Altitude	msl bound lower : 10000 msl bound upper : 11000
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Controlling Facilities	tracon : roc.tracon
Operator	common carrier : air carrier
Make Model Name	B727-200
Operating Under FAR Part	Part 121
Flight Phase	cruise : level
Flight Plan	IFR
Aircraft 2
Controlling Facilities	artcc : zny.artcc
Operator	common carrier : air carrier
Make Model Name	MD-80 Series (DC-9-80) Undifferentiated or Other Model
Operating Under FAR Part	Part 121
Flight Phase	descent : vacating altitude
Flight Plan	IFR
Person 1
Affiliation	company : air carrier
Function	flight crew : captain oversight : pic
Qualification	pilot : multi engine pilot : cfi pilot : atp
Experience	flight time last 90 days : 5 flight time total : 10200 flight time type : 310
ASRS Report	504635
Person 2
Affiliation	company : air carrier
Function	flight crew : first officer
Qualification	pilot : multi engine pilot : instrument pilot : commercial
Events
Anomaly	conflict : airborne less severe non adherence : required legal separation other anomaly other
Independent Detector	aircraft equipment : tcas other flight crewa other flight crewb
Resolutory Action	none taken : anomaly accepted
Miss Distance	horizontal : 3000 vertical : 700
Supplementary
Problem Areas	ATC Human Performance Flight Crew Human Performance
Primary Problem	Ambiguous
Air Traffic Incident	Inter Facility Coordination Failure

Narrative:

We were cruising at 10000 ft en route from syr to roc being worked by roc approach control when we received a TCASII TA on an aircraft ahead of and above us, descending. The aircraft leveled above us at 11000 ft momentarily, but then began a gradual descent (he was being worked by the center controller) passing over us at 10700 ft (according to TCASII) and as he passed behind we saw him at 10500 ft as he passed off the scope. We had been given a descent clearance to 6000 ft as we watched the aircraft pass over and were slowing from 300 KIAS to 250 KIAS to begin our descent from 10000 ft.

Original NASA ASRS Text

Title: B727-200 AND AN MD80 HAD A TCASII TA IN ROC CLASS E AIRSPACE.

Narrative: WE WERE CRUISING AT 10000 FT ENRTE FROM SYR TO ROC BEING WORKED BY ROC APCH CTL WHEN WE RECEIVED A TCASII TA ON AN ACFT AHEAD OF AND ABOVE US, DSNDING. THE ACFT LEVELED ABOVE US AT 11000 FT MOMENTARILY, BUT THEN BEGAN A GRADUAL DSCNT (HE WAS BEING WORKED BY THE CTR CTLR) PASSING OVER US AT 10700 FT (ACCORDING TO TCASII) AND AS HE PASSED BEHIND WE SAW HIM AT 10500 FT AS HE PASSED OFF THE SCOPE. WE HAD BEEN GIVEN A DSCNT CLRNC TO 6000 FT AS WE WATCHED THE ACFT PASS OVER AND WERE SLOWING FROM 300 KIAS TO 250 KIAS TO BEGIN OUR DSCNT FROM 10000 FT.

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.