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A CL65 flight crew receive a TCASII RA after departing atl and leveled off at 15500 ft. A question of similar call sign response.
| Attributes | |
| ACN | 620305 |
| Time | |
| Date | 200406 |
| Day | Sat |
| Local Time Of Day | 1201 To 1800 |
| Place | |
| Locale Reference | airport : atl.airport |
| State Reference | GA |
| Altitude | msl single value : 15500 |
| Environment | |
| Flight Conditions | VMC |
| Light | Daylight |
| Aircraft 1 | |
| Controlling Facilities | artcc : ztl.artcc |
| Operator | common carrier : air carrier |
| Make Model Name | Regional Jet CL65, Undifferentiated or Other Model |
| Operating Under FAR Part | Part 121 |
| Flight Phase | climbout : intermediate altitude |
| Flight Plan | IFR |
| Aircraft 2 | |
| Controlling Facilities | artcc : ztl.artcc |
| Make Model Name | Any Unknown or Unlisted Aircraft Manufacturer |
| Person 1 | |
| Affiliation | company : air carrier |
| Function | flight crew : first officer |
| Qualification | pilot : atp pilot : cfi pilot : commercial pilot : instrument pilot : multi engine |
| Experience | flight time last 90 days : 200 flight time total : 7500 flight time type : 2500 |
| ASRS Report | 620305 |
| Person 2 | |
| Affiliation | company : air carrier |
| Function | flight crew : captain oversight : pic |
| Events | |
| Anomaly | conflict : airborne critical non adherence : published procedure non adherence : required legal separation |
| Independent Detector | aircraft equipment : tcas |
| Resolutory Action | controller : issued new clearance flight crew : took precautionary avoidance action |
| Supplementary | |
| Problem Areas | Flight Crew Human Performance ATC Human Performance |
| Primary Problem | Flight Crew Human Performance |
| Air Traffic Incident | Pilot Deviation |
Narrative:
During our flight from atlanta, we received and acknowledged a climb clearance from 14000 ft to 23000 ft or 24000 ft (I don't remember which). Shortly after initiating our climb, we received a TCASII TA followed by an RA (monitor vertical speed). PF leveled off while I queried ATC. There appeared to be some confusion at ATC as to our location or altitude and we were instructed to level off at 15500 ft. We were then given a frequency change. The new controller gave us a climb and we continued to destination. Soon after the conflict, we heard another flight with a similar call sign number. I believe that we were either given instructions for that flight or mistakenly answered to his instructions. We had not been warned of a similar call sign on frequency.
Original NASA ASRS Text
Title: A CL65 FLT CREW RECEIVE A TCASII RA AFTER DEPARTING ATL AND LEVELED OFF AT 15500 FT. A QUESTION OF SIMILAR CALL SIGN RESPONSE.
Narrative: DURING OUR FLT FROM ATLANTA, WE RECEIVED AND ACKNOWLEDGED A CLB CLRNC FROM 14000 FT TO 23000 FT OR 24000 FT (I DON'T REMEMBER WHICH). SHORTLY AFTER INITIATING OUR CLB, WE RECEIVED A TCASII TA FOLLOWED BY AN RA (MONITOR VERT SPD). PF LEVELED OFF WHILE I QUERIED ATC. THERE APPEARED TO BE SOME CONFUSION AT ATC AS TO OUR LOCATION OR ALT AND WE WERE INSTRUCTED TO LEVEL OFF AT 15500 FT. WE WERE THEN GIVEN A FREQ CHANGE. THE NEW CTLR GAVE US A CLB AND WE CONTINUED TO DEST. SOON AFTER THE CONFLICT, WE HEARD ANOTHER FLT WITH A SIMILAR CALL SIGN NUMBER. I BELIEVE THAT WE WERE EITHER GIVEN INSTRUCTIONS FOR THAT FLT OR MISTAKENLY ANSWERED TO HIS INSTRUCTIONS. WE HAD NOT BEEN WARNED OF A SIMILAR CALL SIGN ON FREQ.
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.