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An air carrier captain reported that the clt runway 5 ILS glide slope has significant fluctuations especially near kecks.
| Attributes | |
| ACN | 1049372 |
| Time | |
| Date | 201211 |
| Local Time Of Day | 1201-1800 |
| Place | |
| Locale Reference | CLT.Airport |
| State Reference | NC |
| Aircraft 1 | |
| Make Model Name | Regional Jet 200 ER/LR (CRJ200) |
| Operating Under FAR Part | Part 121 |
| Flight Phase | Initial Approach |
| Flight Plan | IFR |
| Person 1 | |
| Function | Pilot Flying Captain |
| Qualification | Flight Crew Air Transport Pilot (ATP) |
| Events | |
| Anomaly | ATC Issue All Types |
Narrative:
The glide slope ILS for runway 5 was not and continues to be unstable; with the biggest deviations occurring around kecks. The glide slope moves from one dot low to 1.5 dots high in approximately 3 seconds; then back to one dot low in two seconds. The amplitude and frequency does decrease the closer to the runway; however the glide slope is not steady enough to invoke confidence had the weather been low. This has happened multiple times with multiple aircraft. There were no known vehicles or aircraft operating on the parallel runways at the time as verified by a call to the tower.
Original NASA ASRS Text
Title: An air carrier Captain reported that the CLT Runway 5 ILS glide slope has significant fluctuations especially near KECKS.
Narrative: The glide slope ILS for Runway 5 was not and continues to be unstable; with the biggest deviations occurring around KECKS. The glide slope moves from one dot low to 1.5 dots high in approximately 3 seconds; then back to one dot low in two seconds. The amplitude and frequency does decrease the closer to the runway; however the glide slope is not steady enough to invoke confidence had the weather been low. This has happened multiple times with multiple aircraft. There were no known vehicles or aircraft operating on the parallel runways at the time as verified by a call to the Tower.
Data retrieved from NASA's ASRS site as of July 2013 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.