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Distraction by localizer and GS fail flags on their pfds, flight crew of MD80 cleared for a visual approach to runway 9R at atl flew through extended centerline of their approach path and encountered a TCASII RA with traffic on approach to runway 9L.
| Attributes | |
| ACN | 596744 |
| Time | |
| Date | 200309 |
| Day | Sun |
| Local Time Of Day | 1201 To 1800 |
| Place | |
| Locale Reference | navaid : atl.vortac |
| State Reference | GA |
| Altitude | msl single value : 3500 |
| Environment | |
| Flight Conditions | VMC |
| Light | Daylight |
| Aircraft 1 | |
| Controlling Facilities | tracon : a80.tracon |
| Operator | common carrier : air carrier |
| Make Model Name | MD-88 |
| Operating Under FAR Part | Part 121 |
| Flight Phase | descent : approach |
| Route In Use | approach : visual |
| Flight Plan | IFR |
| Aircraft 2 | |
| Controlling Facilities | tracon : a80.tracon |
| Operator | common carrier : air carrier |
| Make Model Name | Commercial Fixed Wing |
| Operating Under FAR Part | Part 121 |
| Flight Phase | descent : approach |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | company : air carrier |
| Function | flight crew : captain instruction : trainee |
| Qualification | pilot : commercial pilot : instrument pilot : multi engine |
| Experience | flight time last 90 days : 170 flight time total : 9360 flight time type : 42 |
| ASRS Report | 596744 |
| Person 2 | |
| Affiliation | company : air carrier |
| Function | instruction : instructor observation : company check pilot oversight : pic |
| Qualification | pilot : atp |
| Experience | flight time total : 13157 flight time type : 2693 |
| ASRS Report | 595437 |
| Events | |
| Anomaly | conflict : airborne critical non adherence : clearance other spatial deviation |
| Independent Detector | aircraft equipment : tcas |
| Resolutory Action | controller : issued new clearance controller : issued advisory flight crew : took evasive action |
| Miss Distance | horizontal : 3000 vertical : 500 |
| Supplementary | |
| Problem Areas | Flight Crew Human Performance Environmental Factor Airspace Structure Aircraft |
| Primary Problem | Flight Crew Human Performance |
Narrative:
During final approach to runway 9R in atl international airport, approach control gave me traffic information. He asked me if I had the traffic inside. I told him affirmative and the next instruction was follow the traffic for a visual approach to runway 9R. I selected the appropriate frequency and course for the ILS to runway 9R, but there were 'localizer fail' and 'GS fail' flags in my primary flight display and navigation display. For 5-7 seconds, I lost the traffic and didn't turn right to continue the visual approach to runway 9R. Suddenly, I had a TCASII RA. I disconnected the autoplt following the TCASII RA (descend), then I turned heading 120 degrees for approach instructions and continued to land. If I hadn't accepted a visual approach maybe it never would have occurred. Supplemental information from acn 595437: during the final stage of training as a PIC we were on approach to runway 9R. The new captain (PF) and myself the check pilot (PNF) under contact with atl approach, both VHF navigation radios were selected to the proper frequency, as a back up to the visual approach expected. Although we were inside the localizer and GS cover we had failure flags in view in both VHF receivers. We made a xchk to figure out what was happening. When we were checking about that, approach control issued a TA. We made the call to approach that we had the traffic in sight, we were informed by approach that it was on the localizer to runway 9R and it was the traffic to follow. We were cleared for a visual approach to runway 9R. The PF began a turn to the heading 300 degrees when I realized that something was wrong. I told the PF that we were cleared for the visual approach, but it was too late. We crossed the visual track of runway 9R and it was when we had an RA on the TCASII. We were then distraction by the flags on the navigation instruments in a heavy traffic environment when we were with a medium to high workload.
Original NASA ASRS Text
Title: DISTR BY LOC AND GS FAIL FLAGS ON THEIR PFDS, FLT CREW OF MD80 CLRED FOR A VISUAL APCH TO RWY 9R AT ATL FLEW THROUGH EXTENDED CTRLINE OF THEIR APCH PATH AND ENCOUNTERED A TCASII RA WITH TFC ON APCH TO RWY 9L.
Narrative: DURING FINAL APCH TO RWY 9R IN ATL INTL ARPT, APCH CTL GAVE ME TFC INFO. HE ASKED ME IF I HAD THE TFC INSIDE. I TOLD HIM AFFIRMATIVE AND THE NEXT INSTRUCTION WAS FOLLOW THE TFC FOR A VISUAL APCH TO RWY 9R. I SELECTED THE APPROPRIATE FREQ AND COURSE FOR THE ILS TO RWY 9R, BUT THERE WERE 'LOC FAIL' AND 'GS FAIL' FLAGS IN MY PRIMARY FLT DISPLAY AND NAV DISPLAY. FOR 5-7 SECONDS, I LOST THE TFC AND DIDN'T TURN R TO CONTINUE THE VISUAL APCH TO RWY 9R. SUDDENLY, I HAD A TCASII RA. I DISCONNECTED THE AUTOPLT FOLLOWING THE TCASII RA (DSND), THEN I TURNED HEADING 120 DEGS FOR APCH INSTRUCTIONS AND CONTINUED TO LAND. IF I HADN'T ACCEPTED A VISUAL APCH MAYBE IT NEVER WOULD HAVE OCCURRED. SUPPLEMENTAL INFO FROM ACN 595437: DURING THE FINAL STAGE OF TRAINING AS A PIC WE WERE ON APCH TO RWY 9R. THE NEW CAPT (PF) AND MYSELF THE CHK PLT (PNF) UNDER CONTACT WITH ATL APCH, BOTH VHF NAV RADIOS WERE SELECTED TO THE PROPER FREQ, AS A BACK UP TO THE VISUAL APCH EXPECTED. ALTHOUGH WE WERE INSIDE THE LOC AND GS COVER WE HAD FAILURE FLAGS IN VIEW IN BOTH VHF RECEIVERS. WE MADE A XCHK TO FIGURE OUT WHAT WAS HAPPENING. WHEN WE WERE CHKING ABOUT THAT, APCH CTL ISSUED A TA. WE MADE THE CALL TO APCH THAT WE HAD THE TFC IN SIGHT, WE WERE INFORMED BY APCH THAT IT WAS ON THE LOC TO RWY 9R AND IT WAS THE TFC TO FOLLOW. WE WERE CLRED FOR A VISUAL APCH TO RWY 9R. THE PF BEGAN A TURN TO THE HEADING 300 DEGS WHEN I REALIZED THAT SOMETHING WAS WRONG. I TOLD THE PF THAT WE WERE CLRED FOR THE VISUAL APCH, BUT IT WAS TOO LATE. WE CROSSED THE VISUAL TRACK OF RWY 9R AND IT WAS WHEN WE HAD AN RA ON THE TCASII. WE WERE THEN DISTR BY THE FLAGS ON THE NAV INSTS IN A HVY TFC ENVIRONMENT WHEN WE WERE WITH A MEDIUM TO HIGH WORKLOAD.
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.