Medium large transport flight crew has TCASII RA. Responds.

Attributes
ACN	247295
Time
Date	199307
Day	Wed
Local Time Of Day	1801 To 2400
Place
Locale Reference	airport : den
State Reference	CO
Altitude	msl bound lower : 11000 msl bound upper : 11300
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Controlling Facilities	tracon : den tower : bwi
Operator	common carrier : air carrier
Make Model Name	Medium Large Transport, Low Wing, 2 Turbojet Eng
Navigation In Use	Other Other
Flight Phase	cruise other
Route In Use	enroute : direct enroute : on vectors
Flight Plan	IFR
Aircraft 2
Operator	common carrier : air carrier
Make Model Name	Any Unknown or Unlisted Aircraft Manufacturer
Flight Phase	climbout : intermediate altitude
Flight Plan	IFR
Person 1
Affiliation	company : air carrier
Function	flight crew : first officer
Qualification	pilot : commercial pilot : flight engineer pilot : instrument
Experience	flight time last 90 days : 200 flight time total : 3500 flight time type : 800
ASRS Report	247295
Person 2
Affiliation	company : air carrier
Function	flight crew : captain oversight : pic
Qualification	pilot : instrument pilot : flight engineer pilot : commercial pilot : atp
Experience	flight time last 90 days : 200 flight time total : 10000 flight time type : 5000
ASRS Report	246565
Events
Anomaly	altitude deviation : excursion from assigned altitude conflict : airborne less severe non adherence : clearance non adherence : required legal separation other anomaly other
Independent Detector	aircraft equipment other aircraft equipment : unspecified
Resolutory Action	flight crew : took evasive action
Consequence	faa : reviewed incident with flight crew
Miss Distance	horizontal : 2500
Supplementary
Primary Problem	ATC Human Performance
Air Traffic Incident	Intra Facility Coordination Failure other

Narrative:

Proceeding direct den VOR at 11000 ft MSL. Approach advised us of departure traffic (numerous) at 10000 ft MSL. TCASII TA alerted us to traffic at our 1-2 O'clock 3 mi climbing through 10000 ft MSL. Traffic was sighted. TCASII then commanded an RA of climb and directed a 2000 FPM vertical speed. Traffic remained in sight and did appear to be a conflict. As we climbed out of 11000 ft MSL, captain advised approach of deviation. Traffic passed off the right at less than 1/2 mi. Once clear of traffic, we descended back to 11000 ft. Approach told us that unknown to him, the conflict traffic had received a departure clearance to climb through our altitude using visual separation.

Original NASA ASRS Text

Title: MLG FLC HAS TCASII RA. RESPONDS.

Narrative: PROCEEDING DIRECT DEN VOR AT 11000 FT MSL. APCH ADVISED US OF DEP TFC (NUMEROUS) AT 10000 FT MSL. TCASII TA ALERTED US TO TFC AT OUR 1-2 O'CLOCK 3 MI CLBING THROUGH 10000 FT MSL. TFC WAS SIGHTED. TCASII THEN COMMANDED AN RA OF CLB AND DIRECTED A 2000 FPM VERT SPD. TFC REMAINED IN SIGHT AND DID APPEAR TO BE A CONFLICT. AS WE CLBED OUT OF 11000 FT MSL, CAPT ADVISED APCH OF DEV. TFC PASSED OFF THE R AT LESS THAN 1/2 MI. ONCE CLR OF TFC, WE DSNDED BACK TO 11000 FT. APCH TOLD US THAT UNKNOWN TO HIM, THE CONFLICT TFC HAD RECEIVED A DEP CLRNC TO CLB THROUGH OUR ALT USING VISUAL SEPARATION.

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.