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TCAS RA caused flight crew to climb 500' to 8500' to clear traffic. Approach controller later said he was talking to a VFR flight and evasive action was strictly flight crew option.
| Attributes | |
| ACN | 175933 |
| Time | |
| Date | 199104 |
| Day | Wed |
| Local Time Of Day | 0601 To 1200 |
| Place | |
| Locale Reference | atc facility : pie |
| State Reference | FL |
| Altitude | msl bound lower : 8000 msl bound upper : 8500 |
| Environment | |
| Flight Conditions | VMC |
| Aircraft 1 | |
| Controlling Facilities | tracon : tpa |
| Operator | common carrier : air carrier |
| Make Model Name | Medium Transport, High Wing, 2 Turboprop Eng |
| Flight Phase | descent : approach |
| Route In Use | arrival other |
| Flight Plan | IFR |
| Aircraft 2 | |
| Operator | other |
| Make Model Name | Any Unknown or Unlisted Aircraft Manufacturer |
| Flight Plan | VFR |
| Person 1 | |
| Affiliation | company : air carrier |
| Function | flight crew : captain oversight : pic |
| Qualification | pilot : atp pilot : cfi pilot : commercial pilot : instrument |
| Experience | flight time last 90 days : 250 flight time total : 14000 flight time type : 3500 |
| ASRS Report | 175933 |
| Person 2 | |
| Affiliation | company : air carrier |
| Function | flight crew : first officer |
| Qualification | pilot : commercial pilot : instrument |
| Events | |
| Anomaly | altitude deviation : excursion from assigned altitude conflict : nmac non adherence : clearance other anomaly other |
| Independent Detector | other flight crewa |
| Resolutory Action | flight crew : took evasive action |
| Consequence | faa : reviewed incident with flight crew |
| Miss Distance | horizontal : 400 vertical : 400 |
| Supplementary | |
| Primary Problem | Flight Crew Human Performance |
| Air Traffic Incident | Pilot Deviation |
Narrative:
While cruising at 8000' in the area of quite a few cumulus clouds, we had a TCAS advisory of 'traffic.' we noted the traffic on the TCAS display of 12 O'clock and 500' below us. We looked for traffic but no joy. As the opp direction traffic came closer, we got an RA of, 'monitor V/south.' then we got an RA of, 'climb.' we climbed 500' to 8500'. We notified approach of the deviation and that such deviation was due to TCAS RA. He then told us that it had been a VFR aircraft that he was talking to, and that our deviation had been strictly our choice. We again advised him that we had gotten an RA, had no visibility contact with traffic and he had never advised us of traffic. He stated he was going to make a note of our deviation.
Original NASA ASRS Text
Title: TCAS RA CAUSED FLT CREW TO CLIMB 500' TO 8500' TO CLEAR TRAFFIC. APCH CTLR LATER SAID HE WAS TALKING TO A VFR FLT AND EVASIVE ACTION WAS STRICTLY FLT CREW OPTION.
Narrative: WHILE CRUISING AT 8000' IN THE AREA OF QUITE A FEW CUMULUS CLOUDS, WE HAD A TCAS ADVISORY OF 'TFC.' WE NOTED THE TFC ON THE TCAS DISPLAY OF 12 O'CLOCK AND 500' BELOW US. WE LOOKED FOR TFC BUT NO JOY. AS THE OPP DIRECTION TFC CAME CLOSER, WE GOT AN RA OF, 'MONITOR V/S.' THEN WE GOT AN RA OF, 'CLB.' WE CLBED 500' TO 8500'. WE NOTIFIED APCH OF THE DEVIATION AND THAT SUCH DEVIATION WAS DUE TO TCAS RA. HE THEN TOLD US THAT IT HAD BEEN A VFR ACFT THAT HE WAS TALKING TO, AND THAT OUR DEVIATION HAD BEEN STRICTLY OUR CHOICE. WE AGAIN ADVISED HIM THAT WE HAD GOTTEN AN RA, HAD NO VIS CONTACT WITH TFC AND HE HAD NEVER ADVISED US OF TFC. HE STATED HE WAS GOING TO MAKE A NOTE OF OUR DEVIATION.
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.