Air carrier X aircraft equipment problem TCASII had erroneous TCASII RA over balance.

Attributes
ACN	228409
Time
Date	199212
Day	Mon
Local Time Of Day	1201 To 1800
Place
Locale Reference	atc facility : bal
State Reference	MD
Altitude	msl bound lower : 10000 msl bound upper : 10000
Environment
Flight Conditions	IMC
Light	Daylight
Aircraft 1
Controlling Facilities	tracon : dca
Operator	common carrier : air carrier
Make Model Name	Medium Large Transport, Low Wing, 2 Turbojet Eng
Flight Phase	descent : approach descent other
Route In Use	enroute : direct
Flight Plan	IFR
Person 1
Affiliation	government : faa
Function	controller : approach
Qualification	controller : radar
Experience	controller military : 4 controller radar : 8
ASRS Report	228409
Person 2
Affiliation	company : air carrier
Function	flight crew : captain oversight : pic
Qualification	pilot : atp
Events
Anomaly	other anomaly other
Independent Detector	aircraft equipment other aircraft equipment : unspecified other controllera
Resolutory Action	none taken : anomaly accepted
Consequence	Other
Supplementary
Primary Problem	Aircraft
Air Traffic Incident	other

Narrative:

Air carrier X inbound to dca over balance VOR reported a TCASII resolution to ATC. No traffic in air carrier X's vicinity. Erroneous TCASII report.

Original NASA ASRS Text

Title: ACR X ACFT EQUIP PROB TCASII HAD ERRONEOUS TCASII RA OVER BAL.

Narrative: ACR X INBOUND TO DCA OVER BAL VOR RPTED A TCASII RESOLUTION TO ATC. NO TFC IN ACR X'S VICINITY. ERRONEOUS TCASII RPT.

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.