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A319 captain reported receiving an erroneous TCAS RA while in cruise at FL360 with no traffic seen or reported by ATC.
| Attributes | |
| ACN | 1509900 |
| Time | |
| Date | 201801 |
| Local Time Of Day | 0601-1200 |
| Place | |
| Locale Reference | ZZZ.Airport |
| State Reference | US |
| Aircraft 1 | |
| Make Model Name | A319 |
| Operating Under FAR Part | Part 121 |
| Flight Phase | Cruise |
| Flight Plan | IFR |
| Component | |
| Aircraft Component | Traffic Collision Avoidance System (TCAS) |
| Person 1 | |
| Function | Captain Pilot Flying |
| Qualification | Flight Crew Air Transport Pilot (ATP) |
| Events | |
| Anomaly | Aircraft Equipment Problem Less Severe Deviation - Procedural Clearance |
Narrative:
Stable at FL360; suddenly TCAS RA announced 'climb; climb.' no TA prewarning. Performed SOP (disconnect autopilot; called flight directors off; and smoothly but positively initiated climb). First officer notified ATC who then replied they didn't have traffic near us. Requested and stabilized at FL370. RA red square displayed under our position showing -10 and following us laterally. After a few minutes; reset TCAS stby then TA/RA. Red RA disappeared. Confirmed again with ATC of no traffic and got cleared back to FL360. Communicated to dispatch and maintenance control and wrote discrepancy in aircraft maintenance logbook. Possible malfunction of TCAS; erroneous indication.
Original NASA ASRS Text
Title: A319 Captain reported receiving an erroneous TCAS RA while in cruise at FL360 with no traffic seen or reported by ATC.
Narrative: Stable at FL360; suddenly TCAS RA announced 'Climb; Climb.' No TA prewarning. Performed SOP (disconnect autopilot; called Flight Directors OFF; and smoothly but positively initiated climb). FO notified ATC who then replied they didn't have traffic near us. Requested and stabilized at FL370. RA red square displayed under our position showing -10 and following us laterally. After a few minutes; reset TCAS STBY then TA/RA. Red RA disappeared. Confirmed again with ATC of no traffic and got cleared back to FL360. Communicated to Dispatch and Maintenance Control and wrote discrepancy in Aircraft Maintenance Logbook. Possible malfunction of TCAS; erroneous indication.
Data retrieved from NASA's ASRS site 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.