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A C550 flight crew performs a missed approach above 1000 ft AGL when there are conflicting GS signals affecting the ILS approach to runway 21L at dtw, mi.
| Attributes | |
| ACN | 481680 |
| Time | |
| Date | 200008 |
| Day | Wed |
| Local Time Of Day | 0601 To 1200 |
| Place | |
| Locale Reference | airport : dtw.airport |
| State Reference | MI |
| Altitude | msl single value : 1800 |
| Environment | |
| Flight Conditions | IMC |
| Light | Daylight |
| Aircraft 1 | |
| Controlling Facilities | tracon : d21.tracon tower : dtw.tower |
| Operator | general aviation : corporate |
| Make Model Name | Citation II S2/Bravo |
| Operating Under FAR Part | Part 91 |
| Navigation In Use | ils localizer & glide slope : 21l |
| Flight Phase | descent : vacating altitude landing : missed approach |
| Route In Use | approach : instrument precision |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | company : corporate |
| Function | flight crew : first officer |
| Qualification | pilot : atp |
| Experience | flight time last 90 days : 140 flight time total : 2000 flight time type : 500 |
| ASRS Report | 481680 |
| Person 2 | |
| Affiliation | company : corporate |
| Function | flight crew : captain oversight : pic |
| Qualification | pilot : atp |
| Experience | flight time last 90 days : 100 flight time total : 2500 flight time type : 600 |
| ASRS Report | 481681 |
| Events | |
| Anomaly | inflight encounter : weather other anomaly other |
| Independent Detector | aircraft equipment other aircraft equipment : gs other flight crewa other flight crewb |
| Resolutory Action | flight crew : executed missed approach other |
| Consequence | Other |
| Supplementary | |
| Problem Areas | Airspace Structure Flight Crew Human Performance Aircraft ATC Facility |
| Primary Problem | Navigational Facility |
Narrative:
On aug/wed/00, XA00 am, we were cleared for the ILS runway 21L at dtw. On the final segment of the approach it was becoming apparent that we were experiencing conflicting signal coverage on the GS. At this point a go around was initiated. The missed approach procedures were followed.
Original NASA ASRS Text
Title: A C550 FLC PERFORMS A MISSED APCH ABOVE 1000 FT AGL WHEN THERE ARE CONFLICTING GS SIGNALS AFFECTING THE ILS APCH TO RWY 21L AT DTW, MI.
Narrative: ON AUG/WED/00, XA00 AM, WE WERE CLRED FOR THE ILS RWY 21L AT DTW. ON THE FINAL SEGMENT OF THE APCH IT WAS BECOMING APPARENT THAT WE WERE EXPERIENCING CONFLICTING SIGNAL COVERAGE ON THE GS. AT THIS POINT A GAR WAS INITIATED. THE MISSED APCH PROCS WERE FOLLOWED.
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.