Large transport on approach has TCASII RA.

Attributes
ACN	302255
Time
Date	199504
Day	Tue
Local Time Of Day	1801 To 2400
Place
Locale Reference	airport : mco
State Reference	FL
Altitude	msl bound lower : 2900 msl bound upper : 2900
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Controlling Facilities	tower : mco
Operator	common carrier : air carrier
Make Model Name	Commercial Fixed Wing
Operating Under FAR Part	Part 121
Navigation In Use	Other Other
Flight Phase	descent : approach
Route In Use	approach : visual
Flight Plan	IFR
Person 1
Affiliation	company : air carrier
Function	flight crew : captain oversight : pic
Qualification	pilot : atp pilot : instrument pilot : flight engineer pilot : commercial
Experience	flight time total : 25000
ASRS Report	302255
Person 2
Affiliation	company : air carrier
Function	flight crew : first officer
Qualification	pilot : atp pilot : commercial pilot : instrument
Events
Anomaly	other anomaly other
Independent Detector	aircraft equipment other aircraft equipment : unspecified
Resolutory Action	flight crew : returned to intended course or assigned course none taken : anomaly accepted
Consequence	faa : reviewed incident with flight crew
Miss Distance	horizontal : 0 vertical : 500
Supplementary
Primary Problem	Aircraft
Air Traffic Incident	other

Narrative:

After being cleared for a visual approach to runway 17 at mco, passing approximately 2900 ft (still above GS) we pulled up to the green. This amounted to little more than a momentary leveloff. The RA passed under us indicating 500 ft, then disappeared. We did not see another aircraft and mco tower said they did not have any other contact in our area. We continued back down to the GS for a normal landing. I believe this was a false RA warning from an unknown source!

Original NASA ASRS Text

Title: LGT ON APCH HAS TCASII RA.

Narrative: AFTER BEING CLRED FOR A VISUAL APCH TO RWY 17 AT MCO, PASSING APPROX 2900 FT (STILL ABOVE GS) WE PULLED UP TO THE GREEN. THIS AMOUNTED TO LITTLE MORE THAN A MOMENTARY LEVELOFF. THE RA PASSED UNDER US INDICATING 500 FT, THEN DISAPPEARED. WE DID NOT SEE ANOTHER ACFT AND MCO TWR SAID THEY DID NOT HAVE ANY OTHER CONTACT IN OUR AREA. WE CONTINUED BACK DOWN TO THE GS FOR A NORMAL LNDG. I BELIEVE THIS WAS A FALSE RA WARNING FROM AN UNKNOWN SOURCE!

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.