Air carrier on arrival route had TCASII RA, responds.

Attributes
ACN	260844
Time
Date	199401
Day	Mon
Local Time Of Day	1201 To 1800
Place
Locale Reference	airport : clt
State Reference	NC
Altitude	msl bound lower : 10000 msl bound upper : 10800
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Operator	common carrier : air carrier
Make Model Name	Any Unknown or Unlisted Aircraft Manufacturer
Operating Under FAR Part	Part 121
Flight Phase	descent : approach
Route In Use	arrival other enroute airway : clt
Flight Plan	IFR
Aircraft 2
Make Model Name	Any Unknown or Unlisted Aircraft Manufacturer
Operating Under FAR Part	other : unknown
Flight Phase	cruise other
Flight Plan	VFR
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 : 8000 flight time type : 2500
ASRS Report	260844
Person 2
Affiliation	company : air carrier
Function	flight crew : first officer
Qualification	pilot : atp
Experience	flight time last 90 days : 150 flight time total : 9000 flight time type : 3500
ASRS Report	260649
Events
Anomaly	altitude deviation : excursion from assigned altitude conflict : airborne less severe non adherence : clearance 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	horizontal : 0 vertical : 1000
Supplementary
Primary Problem	Ambiguous
Air Traffic Incident	other

Narrative:

On the majic arrival into clt @ 10000 ft when approach gave me a turn to 190 degrees. I noticed traffic 3-5 mi directly in front of us slightly low. It looked like a twin. I glanced at TCASII and saw a traffic mark consistent with the visual traffic and it showed one hundred feet below us. I monitored the TCASII for a moment and saw the traffic's altitude go to 200 ft below us. Approach had asked us to increase our speed above 250 KTS. They didn't say why, but I assumed it was to pass the traffic. They had not called out the traffic to us. I was interrupted by a knock on the door and the 'a' flight attendant entering the cockpit. As I looked over my shoulder to the flight attendant, we got an RA on the traffic to 'climb'. The marker showed the traffic to be 400 ft below us when the first officer initiated his climb out of 10000. I could no longer visually acquire the traffic and felt obligated to honor the RA. We climb until TCASII gave 'monitor vertical speed', which was at 10800 ft. I reported the RA to approach and descended back to 1000 ft when it was obvious the traffic was behind us. Supplemental information from acn 260649: according to clt approach the traffic was VFR and supposed to be at 9500 ft. The air carrier flight behind us also reported a TCASII alert, I don't know if it was an RA.

Original NASA ASRS Text

Title: ACR ON ARR RTE HAD TCASII RA, RESPONDS.

Narrative: ON THE MAJIC ARR INTO CLT @ 10000 FT WHEN APCH GAVE ME A TURN TO 190 DEGS. I NOTICED TFC 3-5 MI DIRECTLY IN FRONT OF US SLIGHTLY LOW. IT LOOKED LIKE A TWIN. I GLANCED AT TCASII AND SAW A TFC MARK CONSISTENT WITH THE VISUAL TFC AND IT SHOWED ONE HUNDRED FEET BELOW US. I MONITORED THE TCASII FOR A MOMENT AND SAW THE TFC'S ALT GO TO 200 FT BELOW US. APCH HAD ASKED US TO INCREASE OUR SPD ABOVE 250 KTS. THEY DIDN'T SAY WHY, BUT I ASSUMED IT WAS TO PASS THE TFC. THEY HAD NOT CALLED OUT THE TFC TO US. I WAS INTERRUPTED BY A KNOCK ON THE DOOR AND THE 'A' FLT ATTENDANT ENTERING THE COCKPIT. AS I LOOKED OVER MY SHOULDER TO THE FLT ATTENDANT, WE GOT AN RA ON THE TFC TO 'CLB'. THE MARKER SHOWED THE TFC TO BE 400 FT BELOW US WHEN THE FO INITIATED HIS CLB OUT OF 10000. I COULD NO LONGER VISUALLY ACQUIRE THE TFC AND FELT OBLIGATED TO HONOR THE RA. WE CLB UNTIL TCASII GAVE 'MONITOR VERT SPD', WHICH WAS AT 10800 FT. I RPTED THE RA TO APCH AND DSNDED BACK TO 1000 FT WHEN IT WAS OBVIOUS THE TFC WAS BEHIND US. SUPPLEMENTAL INFO FROM ACN 260649: ACCORDING TO CLT APCH THE TFC WAS VFR AND SUPPOSED TO BE AT 9500 FT. THE ACR FLT BEHIND US ALSO RPTED A TCASII ALERT, I DON'T KNOW IF IT WAS AN RA.

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.