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Air carrier crew has a TCASII RA near bna, tn, when current controller was unaware of previous clearance.
| Attributes | |
| ACN | 472700 |
| Time | |
| Date | 200005 |
| Day | Thu |
| Local Time Of Day | 1201 To 1800 |
| Place | |
| Locale Reference | airport : bna.airport |
| State Reference | TN |
| Altitude | msl single value : 5700 |
| Environment | |
| Light | Daylight |
| Aircraft 1 | |
| Controlling Facilities | tracon : bna.tracon |
| Operator | common carrier : air carrier |
| Make Model Name | Fokker 100 |
| Operating Under FAR Part | Part 121 |
| Navigation In Use | other |
| Flight Phase | descent : intermediate altitude |
| Route In Use | arrival : on vectors |
| Flight Plan | IFR |
| Aircraft 2 | |
| Controlling Facilities | tracon : bna.tracon |
| Make Model Name | Any Unknown or Unlisted Aircraft Manufacturer |
| Flight Phase | other |
| Person 1 | |
| Affiliation | company : air carrier |
| Function | flight crew : captain oversight : pic |
| Qualification | pilot : atp |
| ASRS Report | 472700 |
| Person 2 | |
| Affiliation | company : air carrier |
| Function | flight crew : first officer |
| Qualification | pilot : multi engine pilot : instrument pilot : commercial |
| ASRS Report | 472701 |
| Events | |
| Anomaly | conflict : airborne less severe other anomaly other |
| Independent Detector | aircraft equipment : tcas other controllerb other flight crewa other flight crewb |
| Resolutory Action | controller : issued new clearance flight crew : took evasive action |
| Supplementary | |
| Problem Areas | ATC Human Performance Flight Crew Human Performance |
| Primary Problem | ATC Human Performance |
| Air Traffic Incident | Inter Facility Coordination Failure |
Narrative:
On descent in bna, first approach controller assigned a descent to 3000 ft with a deceleration to 210 KTS at 6000 ft. First TCASII target noticed at 12 O'clock position, 5 mi, 1500 ft below and climbing. Approximately 5700 ft, got RA to monitor vertical speed. Called controller to advise and was told clearance should have been to 6000 ft and traffic should stay below us. Visual on traffic was high and left. Controller advised it was not a problem and to continue to 3000 ft and turn to a 010 degree heading. Previous clearance to 3000 ft was read back as a descent to 3000 ft and slow to 210 KTS at 6000 ft then down to 3000 ft.
Original NASA ASRS Text
Title: ACR CREW HAS A TCASII RA NEAR BNA, TN, WHEN CURRENT CTLR WAS UNAWARE OF PREVIOUS CLRNC.
Narrative: ON DSCNT IN BNA, FIRST APCH CTLR ASSIGNED A DSCNT TO 3000 FT WITH A DECELERATION TO 210 KTS AT 6000 FT. FIRST TCASII TARGET NOTICED AT 12 O'CLOCK POS, 5 MI, 1500 FT BELOW AND CLBING. APPROX 5700 FT, GOT RA TO MONITOR VERT SPD. CALLED CTLR TO ADVISE AND WAS TOLD CLRNC SHOULD HAVE BEEN TO 6000 FT AND TFC SHOULD STAY BELOW US. VISUAL ON TFC WAS HIGH AND L. CTLR ADVISED IT WAS NOT A PROB AND TO CONTINUE TO 3000 FT AND TURN TO A 010 DEG HDG. PREVIOUS CLRNC TO 3000 FT WAS READ BACK AS A DSCNT TO 3000 FT AND SLOW TO 210 KTS AT 6000 FT THEN DOWN TO 3000 FT.
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.