An air carrier flight crew responded to a TCASII RA in order to avoid a commuter aircraft.

Attributes
ACN	301467
Time
Date	199504
Day	Mon
Local Time Of Day	0601 To 1200
Place
Locale Reference	atc facility : gee
State Reference	NY
Altitude	msl bound lower : 6000 msl bound upper : 6000
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Controlling Facilities	tracon : roc
Operator	common carrier : air carrier
Make Model Name	Any Unknown or Unlisted Aircraft Manufacturer
Operating Under FAR Part	Part 121
Navigation In Use	Other Other
Flight Phase	climbout : intermediate altitude
Flight Plan	IFR
Aircraft 2
Operator	common carrier : air taxi
Make Model Name	Any Unknown or Unlisted Aircraft Manufacturer
Operating Under FAR Part	Part 135
Person 1
Affiliation	company : air carrier
Function	flight crew : captain oversight : pic
Qualification	pilot : atp
Experience	flight time last 90 days : 180 flight time total : 21000 flight time type : 17500
ASRS Report	301467
Person 2
Affiliation	company : air carrier
Function	flight crew : first officer
Qualification	pilot : atp
Events
Anomaly	altitude deviation : excursion from assigned altitude conflict : airborne less severe non adherence : far other anomaly other
Independent Detector	aircraft equipment other aircraft equipment : unspecified other flight crewa
Resolutory Action	flight crew : took evasive action
Consequence	Other
Miss Distance	vertical : 0
Supplementary
Primary Problem	Flight Crew Human Performance
Air Traffic Incident	Pilot Deviation

Narrative:

Air carrier flight en route from roc to pit, climbing to 10000 ft. ATC in contact with commuter flight. Commuter acknowledged, said he had us in sight. I saw target on TCASII, decided to stop climb since he was in close proximity. After leveloff I got an RA to climb. At same time I had visual contact with intruder aircraft. Then I got an RA to 'descend.' I followed TCASII RA and missed aircraft as a result of my maneuver to avoid. Roc departure controller didn't consider this event a safety issue since other intruding aircraft had us in sight, even though I had to maneuver to miss him.

Original NASA ASRS Text

Title: AN ACR FLC RESPONDED TO A TCASII RA IN ORDER TO AVOID A COMMUTER ACFT.

Narrative: ACR FLT ENRTE FROM ROC TO PIT, CLBING TO 10000 FT. ATC IN CONTACT WITH COMMUTER FLT. COMMUTER ACKNOWLEDGED, SAID HE HAD US IN SIGHT. I SAW TARGET ON TCASII, DECIDED TO STOP CLB SINCE HE WAS IN CLOSE PROX. AFTER LEVELOFF I GOT AN RA TO CLB. AT SAME TIME I HAD VISUAL CONTACT WITH INTRUDER ACFT. THEN I GOT AN RA TO 'DSND.' I FOLLOWED TCASII RA AND MISSED ACFT AS A RESULT OF MY MANEUVER TO AVOID. ROC DEP CTLR DIDN'T CONSIDER THIS EVENT A SAFETY ISSUE SINCE OTHER INTRUDING ACFT HAD US IN SIGHT, EVEN THOUGH I HAD TO MANEUVER TO MISS HIM.

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.