<< >> NASA ASRS Report 855020, October 2009

A cessna 560 responded to an apparently phantom TCAS RA shortly after takeoff.

Attributes
ACN	855020
Time
Date	200910
Local Time Of Day	1201-1800
Place
Locale Reference	ICT.Airport
State Reference	US
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Make Model Name	Citation V/Ultra/Encore (C560)
Operating Under FAR Part	Part 91
Flight Phase	Initial Climb
Component
Aircraft Component	Traffic Collision Avoidance System (TCAS)
Person 1
Function	First Officer Pilot Flying
Qualification	Flight Crew Air Transport Pilot (ATP)
Events
Anomaly	Aircraft Equipment Problem Critical

Narrative:

Shortly after takeoff; as we were climbing through 2000ft MSL; a TCAS RA alerted us to monitor vertical speed with a red indication on the positive climb side of the vsi; immediately followed by a descend RA. At the same time we were given a turn on course and a climb to a higher altitude which we immediately declined and we informed ATC that we were unable because we were responding to an RA. As we were descending back down; the 'don't sink' terrain warning was triggered; and we leveled-off around 2000 ft. We reset the TCAS/transponder by going to standby and back to TA/RA which eliminated all of the advisories and warnings. Once we confirmed visually and with the controller that there was no traffic around us; we then accepted a higher altitude and continued without further complications. After talking to the controller; we were 100% positive that there was no traffic anywhere close to us and that it was simply a glitch in the equipment which was corrected by the recycle of the TCAS.

Related reports:

• A B777 crew responded to a TCAS RA from traffic at 12 o'cloc...
• Private pilot of a beech duke, BE60, responded to departure ...
• An air carrier B777 received and responded to a TCASII RA to...
• While level at FL350 the flight crew of a B737-300 responded...
• Emb-145 flight crew reported they responded to an RA on desc...
• An air carrier DC9 flight crew responded to another's cleara...

	Enter your search terms Submit search form
	Web www.37000feet.com

Original NASA ASRS Text

Title: A Cessna 560 responded to an apparently phantom TCAS RA shortly after takeoff.

Narrative: Shortly after takeoff; as we were climbing through 2000ft MSL; a TCAS RA alerted us to monitor vertical speed with a red indication on the positive climb side of the VSI; immediately followed by a descend RA. At the same time we were given a turn on course and a climb to a higher altitude which we immediately declined and we informed ATC that we were unable because we were responding to an RA. As we were descending back down; the 'don't sink' terrain warning was triggered; and we leveled-off around 2000 ft. We reset the TCAS/Transponder by going to standby and back to TA/RA which eliminated all of the advisories and warnings. Once we confirmed visually and with the controller that there was no traffic around us; we then accepted a higher altitude and continued without further complications. After talking to the controller; we were 100% positive that there was no traffic anywhere close to us and that it was simply a glitch in the equipment which was corrected by the recycle of the TCAS.

Data retrieved from NASA's ASRS site as of April 2012 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.