Narrative:

I was pm when I checked in with cle approach; they said that a few aircraft that had landed before; had dipped down on the glideslope (GS) to maintain visual with the runway. ATC told us that they were going to clear us for the ILS 24R and that they wanted us to fly the GS all the way down to runway so they could check out the GS. The captain and I thought this was a weird request but we obliged. We were cleared to 4;000 feet and cleared for the approach. As the GS was captured we followed it down from 4;000 [feet] at civac. At civac ATC said to fly the GS; fly the GS. So we did and at jedsu ATC asked if we were on the GS and I said yes. He said impossible because jedsu is 3;000 feet. He then asked if we had runway which I responded yes. ATC cleared us for a visual approach and at that moment the GS went full scale up; we reported that to ATC and nothing else was said. Cle must not realize that the final fix and GS intercept is far off.

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Original NASA ASRS Text

Title: CRJ700 flight crew is asked by ATC to follow the glideslope all the way down for the ILS 24R at CLE as a test. This results in crossing JEDSU below the glideslope intercept altitude of 3;000 feet.

Narrative: I was PM when I checked in with CLE Approach; they said that a few aircraft that had landed before; had dipped down on the glideslope (GS) to maintain visual with the runway. ATC told us that they were going to clear us for the ILS 24R and that they wanted us to fly the GS all the way down to runway so they could check out the GS. The Captain and I thought this was a weird request but we obliged. We were cleared to 4;000 feet and cleared for the approach. As the GS was captured we followed it down from 4;000 [feet] at CIVAC. At CIVAC ATC said to fly the GS; fly the GS. So we did and at JEDSU ATC asked if we were on the GS and I said yes. He said impossible because JEDSU is 3;000 feet. He then asked if we had runway which I responded yes. ATC cleared us for a Visual Approach and at that moment the GS went full scale up; we reported that to ATC and nothing else was said. CLE must not realize that the final fix and GS intercept is far off.

Data retrieved from NASA's ASRS site 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.