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B727 flight crew issued go around at bos airport. While on vector, flight crew received 2 TCASII alerts from 2 other aircraft on vectors for approach. TRACON supervisor advised controller added to confusion by issuing incorrect headings.
| Attributes | |
| ACN | 395061 |
| Time | |
| Date | 199802 |
| Day | Wed |
| Local Time Of Day | 1801 To 2400 |
| Place | |
| Locale Reference | airport : bos |
| State Reference | MA |
| Altitude | msl bound lower : 3000 msl bound upper : 4000 |
| Environment | |
| Flight Conditions | Mixed |
| Light | Night |
| Aircraft 1 | |
| Controlling Facilities | tracon : bos tower : bos tower : bna |
| Operator | common carrier : air carrier |
| Make Model Name | B727 Undifferentiated or Other Model |
| Operating Under FAR Part | Part 121 |
| Flight Phase | descent : approach landing : go around landing other |
| Route In Use | enroute : on vectors |
| Flight Plan | IFR |
| Aircraft 2 | |
| Make Model Name | Any Unknown or Unlisted Aircraft Manufacturer |
| Operating Under FAR Part | other : unknown |
| Flight Phase | cruise other |
| Route In Use | arrival other enroute : on vectors |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | company : air carrier |
| Function | flight crew : captain oversight : pic |
| Qualification | pilot : atp pilot : commercial pilot : flight engineer pilot : instrument |
| Experience | flight time last 90 days : 200 flight time total : 15000 flight time type : 7000 |
| ASRS Report | 395061 |
| Person 2 | |
| Affiliation | company : air carrier |
| Function | flight crew : first officer |
| Qualification | pilot : commercial pilot : instrument |
| Events | |
| Anomaly | conflict : airborne less severe non adherence : required legal separation non adherence : published procedure other anomaly other |
| Independent Detector | aircraft equipment other aircraft equipment : unspecified other controllera other flight crewa |
| Resolutory Action | flight crew : took evasive action other other |
| Consequence | faa : reviewed incident with flight crew |
| Miss Distance | vertical : 1000 |
| Supplementary | |
| Primary Problem | ATC Human Performance |
| Air Traffic Incident | Operational Error |
Narrative:
ILS runway 33L bos. Separation on approach was minimal referencing aircraft in front of us. At ATC request (approach control) we were maintaining 170 KIAS to the marker. On contact with tower we were advised to expect landing clearance on short final, and then were immediately told to go around, maintain 3000 ft, heading 330 degrees. After being given a subsequent right turn, we were turned further right to, I believe, 210 degrees. At this point TCASII advised 'traffic.' through a break in clouds, I observed aircraft Y corresponding to the TCASII location (first officer was flying). ATC (now approach control again) gave us a turn to 120 degrees. Immediately thereafter, the TCASII commanded 'monitor vertical speed,' indicating a high rate of climb required. Climb was immediately initiated and then ATC advised us to 'climb to 4000 ft -- climb now!' I advised approach we were already climbing. At 4000 ft, TCASII advised clear of conflict. Most of this was in clouds. I did not see the other aircraft. In a subsequent phone call to approach control, the supervisor advised he 'thought I might hear from you,' indicated the controller 'gave [us] the wrong heading.' when the supervisor looked up, we had achieved legal separation. This was a second aircraft, air carrier Z, a DC10. First aircraft TA was not a factor.
Original NASA ASRS Text
Title: B727 FLC ISSUED GAR AT BOS ARPT. WHILE ON VECTOR, FLC RECEIVED 2 TCASII ALERTS FROM 2 OTHER ACFT ON VECTORS FOR APCH. TRACON SUPVR ADVISED CTLR ADDED TO CONFUSION BY ISSUING INCORRECT HDGS.
Narrative: ILS RWY 33L BOS. SEPARATION ON APCH WAS MINIMAL REFING ACFT IN FRONT OF US. AT ATC REQUEST (APCH CTL) WE WERE MAINTAINING 170 KIAS TO THE MARKER. ON CONTACT WITH TWR WE WERE ADVISED TO EXPECT LNDG CLRNC ON SHORT FINAL, AND THEN WERE IMMEDIATELY TOLD TO GAR, MAINTAIN 3000 FT, HDG 330 DEGS. AFTER BEING GIVEN A SUBSEQUENT R TURN, WE WERE TURNED FURTHER R TO, I BELIEVE, 210 DEGS. AT THIS POINT TCASII ADVISED 'TFC.' THROUGH A BREAK IN CLOUDS, I OBSERVED ACFT Y CORRESPONDING TO THE TCASII LOCATION (FO WAS FLYING). ATC (NOW APCH CTL AGAIN) GAVE US A TURN TO 120 DEGS. IMMEDIATELY THEREAFTER, THE TCASII COMMANDED 'MONITOR VERT SPD,' INDICATING A HIGH RATE OF CLB REQUIRED. CLB WAS IMMEDIATELY INITIATED AND THEN ATC ADVISED US TO 'CLB TO 4000 FT -- CLB NOW!' I ADVISED APCH WE WERE ALREADY CLBING. AT 4000 FT, TCASII ADVISED CLR OF CONFLICT. MOST OF THIS WAS IN CLOUDS. I DID NOT SEE THE OTHER ACFT. IN A SUBSEQUENT PHONE CALL TO APCH CTL, THE SUPVR ADVISED HE 'THOUGHT I MIGHT HEAR FROM YOU,' INDICATED THE CTLR 'GAVE [US] THE WRONG HDG.' WHEN THE SUPVR LOOKED UP, WE HAD ACHIEVED LEGAL SEPARATION. THIS WAS A SECOND ACFT, ACR Z, A DC10. FIRST ACFT TA WAS NOT A FACTOR.
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.