TRACON gave traffic advisory, but TCAS RA advised climb. Flight crew advised TRACON and climbed.

Attributes
ACN	182545
Time
Date	199107
Day	Mon
Local Time Of Day	1801 To 2400
Place
Locale Reference	atc facility : sie
State Reference	NJ
Altitude	msl bound lower : 11000 msl bound upper : 11500
Environment
Flight Conditions	VMC
Light	Dusk
Aircraft 1
Controlling Facilities	tracon : bwi
Operator	common carrier : air carrier
Make Model Name	Medium Transport, Low Wing, 2 Turbojet Eng
Flight Phase	climbout : intermediate altitude cruise other descent other
Route In Use	arrival other
Flight Plan	IFR
Person 1
Affiliation	company : air carrier
Function	flight crew : first officer
Qualification	pilot : atp pilot : cfi pilot : instrument pilot : commercial
Experience	flight time last 90 days : 215 flight time total : 4344 flight time type : 215
ASRS Report	182545
Person 2
Affiliation	company : air carrier
Function	flight crew : captain oversight : pic
Qualification	pilot : instrument pilot : atp pilot : commercial
Events
Anomaly	altitude deviation : excursion from assigned altitude non adherence : clearance other anomaly other
Independent Detector	aircraft equipment other aircraft equipment : unspecified other controllera
Resolutory Action	flight crew : took evasive action
Consequence	Other
Miss Distance	vertical : 1500
Supplementary
Primary Problem	Flight Crew Human Performance
Air Traffic Incident	Pilot Deviation

Narrative:

In level flight at an intermediate cruise altitude of 11000' MSL, 74 mi west of sie VORTAC just off V44 on an assigned heading of 090 degrees for spacing. Bwi departure control called out jet traffic at or 10 O'clock position climbing to level at 10000' MSL. We acknowledged positive contact on the traffic. We were converging with the jet, but at different altitudes. The traffic first displayed as proximate traffic on our TCAS, then a TA and immediately thereafter an RA instructed us to 'climb, climb now,' directing a 1500 FPM climb rate. At this point we initiated a climb and advised ATC of our actions. TCAS informed us we were 'clear of conflict' at 11500' MSL. We resumed our normal cruise altitude of 11000' MSL and concluded the flight west/O incident. I don't think there was anything unusual about this RA. Our traffic was in a climb to level at 10000' MSL, but TCAS didn't know that. I think it saw a closure rate it didn't like and told us to climb. I don't know if there's a reasonable solution to this type problem (RA encounter).

Original NASA ASRS Text

Title: TRACON GAVE TRAFFIC ADVISORY, BUT TCAS RA ADVISED CLIMB. FLT CREW ADVISED TRACON AND CLIMBED.

Narrative: IN LEVEL FLT AT AN INTERMEDIATE CRUISE ALT OF 11000' MSL, 74 MI W OF SIE VORTAC JUST OFF V44 ON AN ASSIGNED HDG OF 090 DEGS FOR SPACING. BWI DEP CTL CALLED OUT JET TFC AT OR 10 O'CLOCK POS CLBING TO LEVEL AT 10000' MSL. WE ACKNOWLEDGED POSITIVE CONTACT ON THE TFC. WE WERE CONVERGING WITH THE JET, BUT AT DIFFERENT ALTS. THE TFC FIRST DISPLAYED AS PROXIMATE TFC ON OUR TCAS, THEN A TA AND IMMEDIATELY THEREAFTER AN RA INSTRUCTED US TO 'CLB, CLB NOW,' DIRECTING A 1500 FPM CLB RATE. AT THIS POINT WE INITIATED A CLB AND ADVISED ATC OF OUR ACTIONS. TCAS INFORMED US WE WERE 'CLR OF CONFLICT' AT 11500' MSL. WE RESUMED OUR NORMAL CRUISE ALT OF 11000' MSL AND CONCLUDED THE FLT W/O INCIDENT. I DON'T THINK THERE WAS ANYTHING UNUSUAL ABOUT THIS RA. OUR TFC WAS IN A CLB TO LEVEL AT 10000' MSL, BUT TCAS DIDN'T KNOW THAT. I THINK IT SAW A CLOSURE RATE IT DIDN'T LIKE AND TOLD US TO CLB. I DON'T KNOW IF THERE'S A REASONABLE SOLUTION TO THIS TYPE PROB (RA ENCOUNTER).

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.