Mdt at cruise has TCASII RA, responds with climb.

Attributes
ACN	261784
Time
Date	199401
Day	Mon
Local Time Of Day	1201 To 1800
Place
Locale Reference	atc facility : chs
State Reference	SC
Altitude	msl bound lower : 27500 msl bound upper : 28000
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Controlling Facilities	artcc : zjx tower : tus
Operator	common carrier : air carrier
Make Model Name	Medium Transport, High Wing, 2 Turboprop Eng
Flight Phase	cruise other
Route In Use	enroute : direct
Flight Plan	IFR
Aircraft 2
Operator	common carrier : air carrier
Make Model Name	Large Transport, Low Wing, 3 Turbojet Eng
Flight Phase	cruise other
Route In Use	enroute : direct
Flight Plan	IFR
Person 1
Affiliation	company : air carrier
Function	flight crew : captain oversight : pic
Qualification	pilot : atp
Experience	flight time last 90 days : 100 flight time total : 10000
ASRS Report	261784
Person 2
Affiliation	company : air carrier
Function	flight crew : first officer
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
Resolutory Action	flight crew : took evasive action
Consequence	faa : reviewed incident with flight crew
Supplementary
Primary Problem	Flight Crew Human Performance
Air Traffic Incident	Pilot Deviation other

Narrative:

In cruise flight with restr visibility, crew was alerted to oncoming traffic at 12 O'clock and closing at +800 ft. RA commanded change of altitude down and crew disconnected autoplt and descended. Notified ATC and was assigned FL270. When clear of traffic we were advised by ATC that the traffic we descended for also got an RA to descend but did not follow the command because they acquired us visually.

Original NASA ASRS Text

Title: MDT AT CRUISE HAS TCASII RA, RESPONDS WITH CLB.

Narrative: IN CRUISE FLT WITH RESTR VISIBILITY, CREW WAS ALERTED TO ONCOMING TFC AT 12 O'CLOCK AND CLOSING AT +800 FT. RA COMMANDED CHANGE OF ALT DOWN AND CREW DISCONNECTED AUTOPLT AND DSNDED. NOTIFIED ATC AND WAS ASSIGNED FL270. WHEN CLR OF TFC WE WERE ADVISED BY ATC THAT THE TFC WE DSNDED FOR ALSO GOT AN RA TO DSND BUT DID NOT FOLLOW THE COMMAND BECAUSE THEY ACQUIRED US VISUALLY.

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.