Flight crew aborts takeoff due to master caution light.

Attributes
ACN	545974
Time
Date	200205
Day	Tue
Local Time Of Day	0601 To 1200
Place
Locale Reference	airport : lga.airport
State Reference	NY
Altitude	agl single value : 0
Environment
Flight Conditions	IMC
Light	Daylight
Aircraft 1
Controlling Facilities	tower : mry.tower
Operator	common carrier : air carrier
Make Model Name	A320
Operating Under FAR Part	Part 121
Navigation In Use	other
Flight Phase	ground : takeoff roll
Flight Plan	IFR
Person 1
Affiliation	company : air carrier
Function	flight crew : first officer
Qualification	pilot : atp
Experience	flight time last 90 days : 220 flight time total : 12900 flight time type : 960
ASRS Report	545974
Person 2
Affiliation	company : air carrier
Function	flight crew : captain oversight : pic
Events
Anomaly	aircraft equipment problem : less severe
Independent Detector	aircraft equipment other aircraft equipment : ecam warning system other flight crewa other flight crewb
Resolutory Action	flight crew : rejected takeoff other
Consequence	other
Supplementary
Problem Areas	Aircraft Flight Crew Human Performance
Primary Problem	Aircraft

Narrative:

At approximately 95 KTS, we received a 'navigation/GPS position disagreement' on ECAM, as well as single chime on master caution. The captain performed the rejected takeoff procedure. We came to a complete stop on runway 31 at lga. We proceeded to taxi off the runway and went back to the gate to consult with maintenance. After 80 KTS, all warnings and cautions are inhibited on the airbus until 1500 ft or 2 mins -- with certain exceptions. This caution [alert] is not one of the these [exceptions] and shouldn't have come on.

Original NASA ASRS Text

Title: FLC ABORTS TKOF DUE TO MASTER CAUTION LIGHT.

Narrative: AT APPROX 95 KTS, WE RECEIVED A 'NAV/GPS POS DISAGREEMENT' ON ECAM, AS WELL AS SINGLE CHIME ON MASTER CAUTION. THE CAPT PERFORMED THE REJECTED TKOF PROC. WE CAME TO A COMPLETE STOP ON RWY 31 AT LGA. WE PROCEEDED TO TAXI OFF THE RWY AND WENT BACK TO THE GATE TO CONSULT WITH MAINT. AFTER 80 KTS, ALL WARNINGS AND CAUTIONS ARE INHIBITED ON THE AIRBUS UNTIL 1500 FT OR 2 MINS -- WITH CERTAIN EXCEPTIONS. THIS CAUTION [ALERT] IS NOT ONE OF THE THESE [EXCEPTIONS] AND SHOULDN'T HAVE COME ON.

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.