Sct TRACON controller reported an aircraft descended below the MVA.

Attributes
ACN	1522413
Time
Date	201802
Local Time Of Day	1201-1800
Place
Locale Reference	SCT.TRACON
State Reference	CA
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Make Model Name	F/A 18 Hornet/Super Hornet
Operating Under FAR Part	Part 91
Flight Phase	Initial Approach
Route In Use	Visual Approach
Flight Plan	IFR
Person 1
Function	Coordinator
Qualification	Air Traffic Control Fully Certified
Experience	Air Traffic Control Time Certified In Pos 1 (yrs) 2
Events
Anomaly	ATC Issue All Types Inflight Event / Encounter CFTT / CFIT

Narrative:

Aircraft X was inbound for a visual approach and requested the arresting gear for landing. I coordinated which runway would be used and if they would be shutting the runway down. The controller noticed the aircraft descending below the minimum vectoring altitude and issued a low altitude alert and a climb. The controller believed he issued 5;000 ft and I could not verify that. I believe he issued the instruction when I was coordinating.

Original NASA ASRS Text

Title: SCT TRACON Controller reported an aircraft descended below the MVA.

Narrative: Aircraft X was inbound for a Visual Approach and requested the arresting gear for landing. I coordinated which runway would be used and if they would be shutting the runway down. The controller noticed the aircraft descending below the Minimum Vectoring Altitude and issued a low altitude alert and a climb. The controller believed he issued 5;000 ft and I could not verify that. I believe he issued the instruction when I was coordinating.

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.