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A CL65RJ on approach to cvg flies through the localizer course when the automatic-capture mode of the autoplt defaults to the heading mode.
| Attributes | |
| ACN | 407880 |
| Time | |
| Date | 199807 |
| Day | Mon |
| Local Time Of Day | 0601 To 1200 |
| Place | |
| Locale Reference | airport : cvg |
| State Reference | OH |
| Altitude | msl bound lower : 4000 msl bound upper : 4000 |
| Environment | |
| Flight Conditions | VMC |
| Light | Daylight |
| Aircraft 1 | |
| Controlling Facilities | tracon : cvg |
| Operator | common carrier : air carrier |
| Make Model Name | Challenger CL604 |
| Operating Under FAR Part | Part 121 |
| Navigation In Use | Other Other |
| Flight Phase | descent : approach |
| Route In Use | arrival other enroute : on vectors |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | company : air carrier |
| Function | flight crew : first officer |
| Qualification | pilot : atp |
| Experience | flight time last 90 days : 200 flight time total : 4500 flight time type : 200 |
| ASRS Report | 407880 |
| Person 2 | |
| Affiliation | company : air carrier |
| Function | flight crew : captain oversight : pic |
| Qualification | pilot : cfi pilot : atp |
| Experience | flight time last 90 days : 240 flight time total : 10000 flight time type : 2000 |
| ASRS Report | 407748 |
| Events | |
| Anomaly | aircraft equipment problem : less severe non adherence : clearance other spatial deviation |
| Independent Detector | other flight crewa |
| Resolutory Action | flight crew : overcame equipment problem flight crew : returned to intended course or assigned course |
| Consequence | Other |
| Supplementary | |
| Primary Problem | Aircraft |
| Air Traffic Incident | Pilot Deviation |
Narrative:
After being clear for ILS runway 18R at cvg and arming the approach mode on autoplt, apparently the mode control deactivated and defaulted to heading mode. Did not notice until flying through the localizer. Autoplt was disconnected and we turned back to the runway 18R localizer. No conflict with traffic was noted.
Original NASA ASRS Text
Title: A CL65RJ ON APCH TO CVG FLIES THROUGH THE LOC COURSE WHEN THE AUTO-CAPTURE MODE OF THE AUTOPLT DEFAULTS TO THE HEADING MODE.
Narrative: AFTER BEING CLR FOR ILS RWY 18R AT CVG AND ARMING THE APCH MODE ON AUTOPLT, APPARENTLY THE MODE CTL DEACTIVATED AND DEFAULTED TO HEADING MODE. DID NOT NOTICE UNTIL FLYING THROUGH THE LOC. AUTOPLT WAS DISCONNECTED AND WE TURNED BACK TO THE RWY 18R LOC. NO CONFLICT WITH TFC WAS NOTED.
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.