An instructor pilot reported observing the student descend too low on the approach when ATC issued a...

Attributes
ACN	1561927
Time
Date	201807
Local Time Of Day	1201-1800
Place
Locale Reference	TYS.Airport
State Reference	TN
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Make Model Name	Cirrus Vision SJ50
Operating Under FAR Part	Part 91
Flight Phase	Final Approach
Flight Plan	IFR
Person 1
Function	Instructor
Qualification	Flight Crew Air Transport Pilot (ATP) Flight Crew Instrument Flight Crew Flight Instructor
Experience	Flight Crew Last 90 Days 150 Flight Crew Total 3400 Flight Crew Type 500
Events
Anomaly	Deviation - Altitude Overshoot Deviation - Procedural Clearance Deviation - Procedural Published Material / Policy Inflight Event / Encounter CFTT / CFIT

Narrative:

My student got very low on an approach. I was hoping he would realize his mistake without my intervention. I forgot that we had picked up an IFR to get through a patch of rain. We were VMC at the time and obstacle clearance was assured. We received a low altitude alert from ATC and at that point; we called off the approach and officially changed it to a visual approach and landed.

Original NASA ASRS Text

Title: An instructor pilot reported observing the student descend too low on the approach when ATC issued a low altitude alert.

Narrative: My student got very low on an approach. I was hoping he would realize his mistake without my intervention. I forgot that we had picked up an IFR to get through a patch of rain. We were VMC at the time and obstacle clearance was assured. We received a low altitude alert from ATC and at that point; we called off the approach and officially changed it to a Visual Approach and landed.

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.