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Since approach control did not specify an intercept vector to final when flight crew of an MD80 was cleared on a base leg, they overshot final. ATC intervened and subsequently cleared them for a visual approach. Frequency congestion prevented the flight crew from querying ATC when going through final with no further instructions from ATC.
| Attributes | |
| ACN | 382100 |
| Time | |
| Date | 199710 |
| Day | Mon |
| Local Time Of Day | 0601 To 1200 |
| Place | |
| Locale Reference | airport : ord |
| State Reference | IL |
| Altitude | msl bound lower : 2500 msl bound upper : 2500 |
| Environment | |
| Light | Daylight |
| Aircraft 1 | |
| Controlling Facilities | tracon : ord |
| Operator | common carrier : air carrier |
| Make Model Name | MD-80 Super 80 |
| Operating Under FAR Part | Part 121 |
| Flight Phase | descent : approach |
| Route In Use | enroute : on vectors |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | company : air carrier |
| Function | flight crew : captain oversight : pic |
| Qualification | pilot : atp |
| ASRS Report | 382100 |
| Person 2 | |
| Affiliation | company : air carrier |
| Function | flight crew : first officer |
| Qualification | pilot : instrument pilot : commercial |
| Events | |
| Anomaly | other anomaly other other spatial deviation |
| Independent Detector | other controllera other flight crewa |
| Resolutory Action | controller : issued new clearance flight crew : returned to intended course or assigned course |
| Consequence | Other |
| Supplementary | |
| Primary Problem | ATC Human Performance |
| Air Traffic Incident | other |
Narrative:
Location: ord 140 degree radial 10 NM. Cleared to 090 degree heading, base leg for ILS runway 14R following heavy jet. Began to cross runway 14R centerline with no vector for intercept. Unable to get a word on frequency. Crossed runway 14L centerline before approach asked if we were turning in I said no intercept vector was ever given. All surrounding aircraft were visually picked up and a visual approach was continued to runway 14R. No other problems.
Original NASA ASRS Text
Title: SINCE APCH CTL DID NOT SPECIFY AN INTERCEPT VECTOR TO FINAL WHEN FLC OF AN MD80 WAS CLRED ON A BASE LEG, THEY OVERSHOT FINAL. ATC INTERVENED AND SUBSEQUENTLY CLRED THEM FOR A VISUAL APCH. FREQ CONGESTION PREVENTED THE FLC FROM QUERYING ATC WHEN GOING THROUGH FINAL WITH NO FURTHER INSTRUCTIONS FROM ATC.
Narrative: LOCATION: ORD 140 DEG RADIAL 10 NM. CLRED TO 090 DEG HDG, BASE LEG FOR ILS RWY 14R FOLLOWING HVY JET. BEGAN TO CROSS RWY 14R CTRLINE WITH NO VECTOR FOR INTERCEPT. UNABLE TO GET A WORD ON FREQ. CROSSED RWY 14L CTRLINE BEFORE APCH ASKED IF WE WERE TURNING IN I SAID NO INTERCEPT VECTOR WAS EVER GIVEN. ALL SURROUNDING ACFT WERE VISUALLY PICKED UP AND A VISUAL APCH WAS CONTINUED TO RWY 14R. NO OTHER PROBS.
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.