<< >> NASA ASRS Report 260904, January 1994

Flight crew of an large transport air carrier aircraft received what appeared to be a false TCASII warning during short final on a visual approach.

Attributes
ACN	260904
Time
Date	199401
Day	Fri
Local Time Of Day	1201 To 1800
Place
Locale Reference	airport : phx
State Reference	AZ
Altitude	msl bound lower : 1000 msl bound upper : 2800
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Controlling Facilities	tower : phx tower : dca
Operator	common carrier : air carrier
Make Model Name	B757 Undifferentiated or Other Model
Operating Under FAR Part	Part 121
Navigation In Use	Other Other
Flight Phase	descent : approach
Flight Plan	IFR
Aircraft 2
Make Model Name	Any Unknown or Unlisted Aircraft Manufacturer
Operating Under FAR Part	other : unknown
Person 1
Affiliation	company : air carrier
Function	flight crew : captain oversight : pic
Qualification	pilot : private pilot : instrument pilot : flight engineer pilot : commercial pilot : atp
Experience	flight time last 90 days : 50 flight time total : 15200 flight time type : 1200
ASRS Report	260904
Person 2
Affiliation	company : air carrier
Function	flight crew : first officer
Qualification	pilot : commercial pilot : instrument
Events
Anomaly	aircraft equipment problem : less severe other anomaly other
Independent Detector	aircraft equipment other aircraft equipment : unspecified other flight crewa
Resolutory Action	none taken : anomaly accepted
Consequence	faa : reviewed incident with flight crew
Supplementary
Primary Problem	Aircraft
Air Traffic Incident	other

Narrative:

TCASII RA occurred twice on short final. No traffic observed by flight crew or tower.

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Original NASA ASRS Text

Title: FLT CREW OF AN LGT ACR ACFT RECEIVED WHAT APPEARED TO BE A FALSE TCASII WARNING DURING SHORT FINAL ON A VISUAL APCH.

Narrative: TCASII RA OCCURRED TWICE ON SHORT FINAL. NO TFC OBSERVED BY FLC OR TWR.

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.