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B737 flight crew on instrument approach to foreign airport executes evasive maneuver in accordance with TCASII RA.
| Attributes | |
| ACN | 544061 |
| Time | |
| Date | 200204 |
| Day | Wed |
| Local Time Of Day | 1201 To 1800 |
| Place | |
| Locale Reference | navaid : aur.vortac |
| State Reference | FO |
| Altitude | msl single value : 6300 |
| Environment | |
| Flight Conditions | IMC |
| Light | Daylight |
| Aircraft 1 | |
| Controlling Facilities | tower : cvg.tower |
| Operator | common carrier : air carrier |
| Make Model Name | B737 Undifferentiated or Other Model |
| Operating Under FAR Part | Part 121 |
| Navigation In Use | ils localizer & glide slope : 01 other other vortac |
| Flight Phase | descent : approach |
| Route In Use | approach : instrument precision arrival : on vectors |
| Flight Plan | IFR |
| Aircraft 2 | |
| Operator | common carrier : air carrier |
| Make Model Name | A320 |
| Operating Under FAR Part | Part 121 |
| Navigation In Use | other vortac |
| Flight Phase | descent : approach landing : go around |
| Route In Use | arrival : on vectors |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | company : air carrier |
| Function | flight crew : first officer |
| Qualification | pilot : multi engine pilot : instrument pilot : commercial |
| ASRS Report | 544061 |
| Person 2 | |
| Affiliation | company : air carrier |
| Function | flight crew : captain oversight : pic |
| Events | |
| Anomaly | conflict : airborne critical non adherence : required legal separation non adherence : published procedure non adherence : clearance other spatial deviation |
| Independent Detector | aircraft equipment : tcas other flight crewa other flight crewb other other : 3 |
| Resolutory Action | flight crew : executed missed approach flight crew : took evasive action flight crew : overrode automation |
| Miss Distance | horizontal : 953 |
Narrative:
ILS DME 2 mggt, rag to aur inbound air carrier Y at 11000 ft approximately 2 mi in front of air carrier X at 9000 ft. Both flts cleared IFR approach. Air carrier X slowed to 190 KIAS, flaps 5 degrees overhead aur VOR. Air carrier X departed aur VOR on 215 degree radial, flaps 10 degrees, speed reduced to 150 KIAS. Air carrier X got yellow TCASII display from descending air carrier Y. Approach is attempting to get spacing (ie, air carrier Y fast, air carrier X slow). Air carrier X FMS approach set up with aur 215 degree radial, 6.2 DME as turn point, aur 205 degree radial 6.8 DME as midpoint of procedure, to rollout at vilan at 6300 ft. Configured landing gear down, flaps 15 degrees prior to 215 degree radial 6.2 DME. Reconfigured flaps 25 degrees before initiating turn at 6.2 DME 6600 ft. Approximately 70 degrees through turn, air carrier X got red TCASII display of co-altitude target to the right of our nose. Crew became uncomfortable, disengaged the autoplt at 90 degree turn and rolled wings level. (WX conditions intermittent.) air carrier X crew visually sighted air carrier Y at our 2 O'clock position approximately 6000-9000 ft co-altitude. Air carrier X initiated a climbing right turn to air carrier Y lag position. TCASII alert sounded, commanding maintain vertical speed. Air carrier X crew cleared aft of air carrier Y as the airbus 320 initiated a go around. Air carrier X overshot ILS final, turned back inbound to an uneventful final approach and landing. Air carrier X maximum DME during procedure was 6.8 DME. (Air carrier Y outside 7 DME during procedure.) approach plate specified 'do not exceed 7 DME arc.' approach never mentioned air carrier Y throughout the approach and seemed unaware of the conflict until after the aircraft had initiated evasive maneuvering.
Original NASA ASRS Text
Title: B737 FLC ON INST APCH TO FOREIGN ARPT EXECUTES EVASIVE MANEUVER IN ACCORDANCE WITH TCASII RA.
Narrative: ILS DME 2 MGGT, RAG TO AUR INBOUND ACR Y AT 11000 FT APPROX 2 MI IN FRONT OF ACR X AT 9000 FT. BOTH FLTS CLRED IFR APCH. ACR X SLOWED TO 190 KIAS, FLAPS 5 DEGS OVERHEAD AUR VOR. ACR X DEPARTED AUR VOR ON 215 DEG RADIAL, FLAPS 10 DEGS, SPD REDUCED TO 150 KIAS. ACR X GOT YELLOW TCASII DISPLAY FROM DSNDING ACR Y. APCH IS ATTEMPTING TO GET SPACING (IE, ACR Y FAST, ACR X SLOW). ACR X FMS APCH SET UP WITH AUR 215 DEG RADIAL, 6.2 DME AS TURN POINT, AUR 205 DEG RADIAL 6.8 DME AS MIDPOINT OF PROC, TO ROLLOUT AT VILAN AT 6300 FT. CONFIGURED LNDG GEAR DOWN, FLAPS 15 DEGS PRIOR TO 215 DEG RADIAL 6.2 DME. RECONFIGURED FLAPS 25 DEGS BEFORE INITIATING TURN AT 6.2 DME 6600 FT. APPROX 70 DEGS THROUGH TURN, ACR X GOT RED TCASII DISPLAY OF CO-ALT TARGET TO THE R OF OUR NOSE. CREW BECAME UNCOMFORTABLE, DISENGAGED THE AUTOPLT AT 90 DEG TURN AND ROLLED WINGS LEVEL. (WX CONDITIONS INTERMITTENT.) ACR X CREW VISUALLY SIGHTED ACR Y AT OUR 2 O'CLOCK POS APPROX 6000-9000 FT CO-ALT. ACR X INITIATED A CLBING R TURN TO ACR Y LAG POS. TCASII ALERT SOUNDED, COMMANDING MAINTAIN VERT SPD. ACR X CREW CLRED AFT OF ACR Y AS THE AIRBUS 320 INITIATED A GAR. ACR X OVERSHOT ILS FINAL, TURNED BACK INBOUND TO AN UNEVENTFUL FINAL APCH AND LNDG. ACR X MAX DME DURING PROC WAS 6.8 DME. (ACR Y OUTSIDE 7 DME DURING PROC.) APCH PLATE SPECIFIED 'DO NOT EXCEED 7 DME ARC.' APCH NEVER MENTIONED ACR Y THROUGHOUT THE APCH AND SEEMED UNAWARE OF THE CONFLICT UNTIL AFTER THE ACFT HAD INITIATED EVASIVE MANEUVERING.
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.