Medium large transport has TCASII RA at cruise.

Attributes
ACN	252693
Time
Date	199309
Day	Mon
Local Time Of Day	1801 To 2400
Place
Locale Reference	atc facility : djb
State Reference	OH
Altitude	msl bound lower : 24000 msl bound upper : 24800
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Controlling Facilities	artcc : zob
Operator	common carrier : air carrier
Make Model Name	Medium Large Transport, Low Wing, 2 Turbojet Eng
Flight Phase	cruise other
Route In Use	enroute : direct
Flight Plan	IFR
Aircraft 2
Operator	common carrier : air carrier
Make Model Name	Any Unknown or Unlisted Aircraft Manufacturer
Flight Plan	IFR
Person 1
Affiliation	company : air carrier
Function	flight crew : first officer
Qualification	pilot : flight engineer pilot : atp
Experience	flight time last 90 days : 210 flight time total : 5000 flight time type : 210
ASRS Report	252693
Person 2
Affiliation	company : air carrier
Function	flight crew : captain oversight : pic
Qualification	pilot : flight engineer pilot : cfi pilot : atp
Experience	flight time last 90 days : 210 flight time total : 18000 flight time type : 210
ASRS Report	252522
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 : returned to intended course or assigned course flight crew : took evasive action
Consequence	Other
Supplementary
Primary Problem	Flight Crew Human Performance
Air Traffic Incident	other

Narrative:

Flight from gsp to dtw. Approximately 65 south of djb at FL240 on J85, we received a TCASII RA commanding a climb at a rate between 1500-2000 FPM. We complied and informed ZOB. We climbed to 24800 ft. At that point we were 'clear of conflict' so we returned to FL240. The controller said he was 'sorry our machine went off' and we soon switched frequencys.

Original NASA ASRS Text

Title: MLG HAS TCASII RA AT CRUISE.

Narrative: FLT FROM GSP TO DTW. APPROX 65 S OF DJB AT FL240 ON J85, WE RECEIVED A TCASII RA COMMANDING A CLB AT A RATE BTWN 1500-2000 FPM. WE COMPLIED AND INFORMED ZOB. WE CLBED TO 24800 FT. AT THAT POINT WE WERE 'CLR OF CONFLICT' SO WE RETURNED TO FL240. THE CTLR SAID HE WAS 'SORRY OUR MACHINE WENT OFF' AND WE SOON SWITCHED FREQS.

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.