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When intercepting the localizer for an ILS approach, flight crew was close in and fast, configuring the aircraft for landing. Localizer course needle went to full deflection and flight crew did a go around. They then noted that their set courses were 20 degrees off from approach course and corrected for uneventful approach landing.
| Attributes | |
| ACN | 330717 |
| Time | |
| Date | 199603 |
| Day | Sun |
| Local Time Of Day | 0601 To 1200 |
| Place | |
| Locale Reference | airport : bna |
| State Reference | TN |
| Aircraft 1 | |
| Controlling Facilities | tracon : bna tower : ord |
| Operator | common carrier : air carrier |
| Make Model Name | MD-80 Super 80 |
| Operating Under FAR Part | Part 121 |
| Navigation In Use | Other Other |
| Flight Phase | descent : approach |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | company : air carrier |
| Function | flight crew : captain oversight : pic |
| Qualification | pilot : atp |
| ASRS Report | 330717 |
| Person 2 | |
| Affiliation | company : air carrier |
| Function | flight crew : first officer |
| Qualification | pilot : atp |
| ASRS Report | 330711 |
| Events | |
| Anomaly | non adherence : clearance other anomaly other other spatial deviation |
| Independent Detector | other flight crewa |
| Resolutory Action | other |
| Consequence | Other |
| Supplementary | |
| Primary Problem | Flight Crew Human Performance |
| Air Traffic Incident | Pilot Deviation |
Narrative:
Being vectored for ILS runway 20L, in WX, looking at radar and running deicing. Given an intercept heading and cleared for approach. First officer flying had localizer tuned and idented, I had bna VOR tuned for orientation. Intercepted localizer just outside FAF, still going fairly fast, so rapidly slowing and configuring. I joined first officer on localizer frequency. First officer had joined and was starting down GS when localizer went full scale right of course. First officer was correcting, and I retuned VOR. Did not recover localizer so we executed a missed approach. Only after this did we realize our mistake. First officer had mistakenly set 220 degree course for localizer instead of 200 degree. When I joined him we were in so close, I just matched first officer settings not catching mistake. Although we did brief the approach, somehow neither of us noticed the discrepancy. Major mistakes were then my not looking at approach plate to join first officer, and not initiating missed approach sooner.
Original NASA ASRS Text
Title: WHEN INTERCEPTING THE LOC FOR AN ILS APCH, FLC WAS CLOSE IN AND FAST, CONFIGURING THE ACFT FOR LNDG. LOC COURSE NEEDLE WENT TO FULL DEFLECTION AND FLC DID A GAR. THEY THEN NOTED THAT THEIR SET COURSES WERE 20 DEGS OFF FROM APCH COURSE AND CORRECTED FOR UNEVENTFUL APCH LNDG.
Narrative: BEING VECTORED FOR ILS RWY 20L, IN WX, LOOKING AT RADAR AND RUNNING DEICING. GIVEN AN INTERCEPT HDG AND CLRED FOR APCH. FO FLYING HAD LOC TUNED AND IDENTED, I HAD BNA VOR TUNED FOR ORIENTATION. INTERCEPTED LOC JUST OUTSIDE FAF, STILL GOING FAIRLY FAST, SO RAPIDLY SLOWING AND CONFIGURING. I JOINED FO ON LOC FREQ. FO HAD JOINED AND WAS STARTING DOWN GS WHEN LOC WENT FULL SCALE R OF COURSE. FO WAS CORRECTING, AND I RETUNED VOR. DID NOT RECOVER LOC SO WE EXECUTED A MISSED APCH. ONLY AFTER THIS DID WE REALIZE OUR MISTAKE. FO HAD MISTAKENLY SET 220 DEG COURSE FOR LOC INSTEAD OF 200 DEG. WHEN I JOINED HIM WE WERE IN SO CLOSE, I JUST MATCHED FO SETTINGS NOT CATCHING MISTAKE. ALTHOUGH WE DID BRIEF THE APCH, SOMEHOW NEITHER OF US NOTICED THE DISCREPANCY. MAJOR MISTAKES WERE THEN MY NOT LOOKING AT APCH PLATE TO JOIN FO, AND NOT INITIATING MISSED APCH SOONER.
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.