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Instructor controller at bna approach claims that because of a noisy control room, he was unable to hear the trainee or the aircraft xmissions.
| Attributes | |
| ACN | 591666 |
| Time | |
| Date | 200308 |
| Day | Thu |
| Local Time Of Day | 1201 To 1800 |
| Place | |
| Locale Reference | navaid : bna.vortac |
| State Reference | TN |
| Altitude | msl single value : 2100 |
| Environment | |
| Flight Conditions | Marginal |
| Light | Daylight |
| Aircraft 1 | |
| Controlling Facilities | tracon : bna.tracon |
| Operator | general aviation : corporate |
| Make Model Name | King Air 100 A/B |
| Operating Under FAR Part | Part 91 |
| Flight Phase | climbout : intermediate altitude |
| Flight Plan | None |
| Aircraft 2 | |
| Controlling Facilities | tracon : bna.tracon |
| Operator | common carrier : air carrier |
| Make Model Name | Commercial Fixed Wing |
| Operating Under FAR Part | Part 121 |
| Flight Phase | climbout : intermediate altitude |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | government : faa |
| Function | controller : departure instruction : instructor |
| Qualification | controller : radar |
| Experience | controller non radar : 3 controller radar : 17 |
| ASRS Report | 591666 |
| Person 2 | |
| Affiliation | government : faa |
| Function | controller : departure instruction : trainee |
| Events | |
| Anomaly | conflict : airborne less severe non adherence : required legal separation non adherence : published procedure other anomaly other |
| Independent Detector | atc equipment other atc equipment : radar mode c other controllera other controllerb other flight crewa other flight crewb |
| Resolutory Action | other |
| Consequence | faa : investigated |
| Supplementary | |
| Problem Areas | ATC Human Performance |
| Primary Problem | ATC Human Performance |
| Air Traffic Incident | Operational Error |
Narrative:
Aircraft X called bna 119.35. I was training a controller. It was busy when this king air (aircraft X) called off jwn to tys and wanted to climb to 11500 ft or 13500 ft. The trainee told the aircraft to remain outside the class C airspace and squawk a code I could not discern, but ended up being the altimeter setting. There were numerous people mulling around in loud conversation and I could hardly hear the aircraft or the trainee. The aircraft was given a local VFR code on about the bna 220 degree radial, 005 DME. There was a sbound departure that was going to be a conflict with the king air whose mode C was at 2100 ft. The trainee climbed aircraft to requested altitude and said proceed on course. I said 'no, no, no' to the trainee and instructed to turn the aircraft sbound as it would be a conflict for runway 20L departures. There was no time to point the aircraft out to local control and he was not advised radar contact. I requested to listen to the tape because I could not hear what was going on with aircraft xmissions and the trainee's xmissions. During this I ws also questioned by supervisor about breaking out an air carrier flight. These distrs about made work impossible. I was later advised that this king air was supposedly vectored below the MVA. The king air was in controled airspace and never told radar contact. This was not of my knowledge. Overall, this aircraft was not in a good situation on his own account and not much ATC could do but turn to avoid conflict. The MSAW also never alarmed and aircraft X was at 2100 ft, the MSA.
Original NASA ASRS Text
Title: INSTRUCTOR CTLR AT BNA APCH CLAIMS THAT BECAUSE OF A NOISY CTL ROOM, HE WAS UNABLE TO HEAR THE TRAINEE OR THE ACFT XMISSIONS.
Narrative: ACFT X CALLED BNA 119.35. I WAS TRAINING A CTLR. IT WAS BUSY WHEN THIS KING AIR (ACFT X) CALLED OFF JWN TO TYS AND WANTED TO CLB TO 11500 FT OR 13500 FT. THE TRAINEE TOLD THE ACFT TO REMAIN OUTSIDE THE CLASS C AIRSPACE AND SQUAWK A CODE I COULD NOT DISCERN, BUT ENDED UP BEING THE ALTIMETER SETTING. THERE WERE NUMEROUS PEOPLE MULLING AROUND IN LOUD CONVERSATION AND I COULD HARDLY HEAR THE ACFT OR THE TRAINEE. THE ACFT WAS GIVEN A LCL VFR CODE ON ABOUT THE BNA 220 DEG RADIAL, 005 DME. THERE WAS A SBOUND DEP THAT WAS GOING TO BE A CONFLICT WITH THE KING AIR WHOSE MODE C WAS AT 2100 FT. THE TRAINEE CLBED ACFT TO REQUESTED ALT AND SAID PROCEED ON COURSE. I SAID 'NO, NO, NO' TO THE TRAINEE AND INSTRUCTED TO TURN THE ACFT SBOUND AS IT WOULD BE A CONFLICT FOR RWY 20L DEPS. THERE WAS NO TIME TO POINT THE ACFT OUT TO LCL CTL AND HE WAS NOT ADVISED RADAR CONTACT. I REQUESTED TO LISTEN TO THE TAPE BECAUSE I COULD NOT HEAR WHAT WAS GOING ON WITH ACFT XMISSIONS AND THE TRAINEE'S XMISSIONS. DURING THIS I WS ALSO QUESTIONED BY SUPVR ABOUT BREAKING OUT AN ACR FLT. THESE DISTRS ABOUT MADE WORK IMPOSSIBLE. I WAS LATER ADVISED THAT THIS KING AIR WAS SUPPOSEDLY VECTORED BELOW THE MVA. THE KING AIR WAS IN CTLED AIRSPACE AND NEVER TOLD RADAR CONTACT. THIS WAS NOT OF MY KNOWLEDGE. OVERALL, THIS ACFT WAS NOT IN A GOOD SIT ON HIS OWN ACCOUNT AND NOT MUCH ATC COULD DO BUT TURN TO AVOID CONFLICT. THE MSAW ALSO NEVER ALARMED AND ACFT X WAS AT 2100 FT, THE MSA.
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.