Air carrier receives TCASII RA, responds with climb.

Attributes
ACN	234336
Time
Date	199302
Day	Fri
Local Time Of Day	0601 To 1200
Place
Locale Reference	airport : bna
State Reference	TN
Altitude	msl bound lower : 3000 msl bound upper : 4000
Environment
Flight Conditions	Mixed
Light	Daylight
Aircraft 1
Controlling Facilities	tracon : bna
Operator	common carrier : air carrier
Make Model Name	Medium Large Transport, Low Wing, 2 Turbojet Eng
Flight Phase	descent : approach
Route In Use	enroute : on vectors
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 : 12000 flight time type : 5000
ASRS Report	234336
Person 2
Affiliation	company : air carrier
Function	flight crew : first officer
Qualification	pilot : commercial pilot : private pilot : instrument pilot : flight engineer
Experience	flight time last 90 days : 150 flight time total : 3800 flight time type : 1400
ASRS Report	234163
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	Aircraft
Air Traffic Incident	Pilot Deviation other

Narrative:

At 3000 MSL on approach to bna on top of cloud layer, my aircraft's TCASII warning went off. RA alert to climb 1500 FPM. Climbed from 3000 ft to 4000 ft advised bna approach. They said that there was no observed traffic in our area. Returned to assigned altitude. Suspect false target on TCASII. RA target just popped up on screen with no altitude indication.

Original NASA ASRS Text

Title: ACR RECEIVES TCASII RA, RESPONDS WITH CLB.

Narrative: AT 3000 MSL ON APCH TO BNA ON TOP OF CLOUD LAYER, MY ACFT'S TCASII WARNING WENT OFF. RA ALERT TO CLB 1500 FPM. CLBED FROM 3000 FT TO 4000 FT ADVISED BNA APCH. THEY SAID THAT THERE WAS NO OBSERVED TFC IN OUR AREA. RETURNED TO ASSIGNED ALT. SUSPECT FALSE TARGET ON TCASII. RA TARGET JUST POPPED UP ON SCREEN WITH NO ALT INDICATION.

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.