Narrative:

Aircraft was cleared for the VOR/DME C approach into medford airport. Aircraft was instructed to 'cross brket at or above 10;000.' ten thousand is the published crossing altitude on this approach. As aircraft was descending through 9;000 about 12 nm south of the field the crew told me they were responding to a terrain alert and climbing. Crew was on the correct approach path and they had not yet even descended through the MVA when they said they were responding to the alert. Eventually when aircraft was about 5 nm south of the airport crew reported the field in sight and was vectored for sequence to a visual approach. At no point did I receive a low altitude alert.all of the instrument approaches to runway 32 at medford need to be looked over and possibly changed. Many air carriers have already told us they refuse to do a few of the other approaches that we have to the airport from the south. This particular approach the aircraft was flying has a steep descent angle in a mountainous area which is what I believe triggered the terrain alert.

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Original NASA ASRS Text

Title: EUG TRACON Controller reported a Regional Jet received a terrain alert while on an instrument approach and executed the terrain escape maneuver.

Narrative: Aircraft was cleared for the VOR/DME C approach into Medford airport. Aircraft was instructed to 'cross BRKET at or above 10;000.' Ten thousand is the published crossing altitude on this approach. As aircraft was descending through 9;000 about 12 nm south of the field the crew told me they were responding to a terrain alert and climbing. Crew was on the correct approach path and they had not yet even descended through the MVA when they said they were responding to the alert. Eventually when aircraft was about 5 nm south of the airport crew reported the field in sight and was vectored for sequence to a visual approach. At no point did I receive a low altitude alert.All of the instrument approaches to RWY 32 at Medford need to be looked over and possibly changed. Many air carriers have already told us they refuse to do a few of the other approaches that we have to the airport from the south. This particular approach the aircraft was flying has a steep descent angle in a mountainous area which is what I believe triggered the terrain alert.

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.