Captain of a B757 descended in response to a TCASII RA during departure climb. The other aircraft, MD80, was sighted also descending off the reporter's right wing.

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Attributes
ACN	431375
Time
Date	199903
Day	Thu
Local Time Of Day	1201 To 1800
Place
Locale Reference	airport : mci.airport
State Reference	MO
Altitude	msl bound lower : 9200 msl bound upper : 10400
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Controlling Facilities	tracon : mci.tracon
Operator	common carrier : air carrier
Make Model Name	B757 Undifferentiated or Other Model
Operating Under FAR Part	Part 121
Navigation In Use	other
Flight Phase	climbout : intermediate altitude
Route In Use	departure sid : wildct 1
Flight Plan	IFR
Aircraft 2
Controlling Facilities	tracon : mci.tracon
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 : intermediate altitude
Flight Plan	IFR
Person 1
Affiliation	company : air carrier
Function	flight crew : captain oversight : pic
Qualification	pilot : atp
Experience	flight time last 90 days : 230 flight time total : 14000 flight time type : 2500
ASRS Report	431375
Person 2
Affiliation	company : air carrier
Function	flight crew : first officer
Qualification	pilot : commercial pilot : instrument pilot : multi engine
Events
Anomaly	altitude deviation : excursion from assigned altitude conflict : airborne less severe
Independent Detector	aircraft equipment : tcas other flight crewa
Resolutory Action	flight crew : took precautionary avoidance action
Miss Distance	unspecified : 9000 vertical : 200
Supplementary
Problem Areas	Flight Crew Human Performance
Primary Problem	Flight Crew Human Performance
Air Traffic Incident	Intra Facility Coordination Failure

Narrative:

Level at 10000 ft. Received climb to 15000 ft. Saw traffic on TCASII descending from 11000 ft. Started climb on VNAV. TCASII advised 'descend.' copilot observed MD80 at 2 O'clock. TCASII indicated altitude of 10400 ft and descending. Our altitude 10200 ft when TCASII advised 'increase descent.' continued down to 9200 ft before 'clear of conflict.' other aircraft also descended. Advised controller. I had only become the PF moments earlier. The copilot had been hand flying and looking directly into the sun. Just 800 ft before leveling at 10000 ft, he abruptly announced 'you've got it.' surprised, I attempted to regain my composure and got the climb stopped at 10180 ft. And all this while under the watchful eye of an FAA air carrier inspector on the jumpseat.

Original NASA ASRS Text

Title: CAPT OF A B757 DSNDED IN RESPONSE TO A TCASII RA DURING DEP CLB. THE OTHER ACFT, MD80, WAS SIGHTED ALSO DSNDING OFF THE RPTR'S R WING.

Narrative: LEVEL AT 10000 FT. RECEIVED CLB TO 15000 FT. SAW TFC ON TCASII DSNDING FROM 11000 FT. STARTED CLB ON VNAV. TCASII ADVISED 'DSND.' COPLT OBSERVED MD80 AT 2 O'CLOCK. TCASII INDICATED ALT OF 10400 FT AND DSNDING. OUR ALT 10200 FT WHEN TCASII ADVISED 'INCREASE DSCNT.' CONTINUED DOWN TO 9200 FT BEFORE 'CLR OF CONFLICT.' OTHER ACFT ALSO DSNDED. ADVISED CTLR. I HAD ONLY BECOME THE PF MOMENTS EARLIER. THE COPLT HAD BEEN HAND FLYING AND LOOKING DIRECTLY INTO THE SUN. JUST 800 FT BEFORE LEVELING AT 10000 FT, HE ABRUPTLY ANNOUNCED 'YOU'VE GOT IT.' SURPRISED, I ATTEMPTED TO REGAIN MY COMPOSURE AND GOT THE CLB STOPPED AT 10180 FT. AND ALL THIS WHILE UNDER THE WATCHFUL EYE OF AN FAA ACR INSPECTOR ON THE JUMPSEAT.

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.