Getting A Mechanic's Signature

From the DVIR Details screen, use the Date Slider to select the DVIR that needs a Mechanic Signature (it defaults to the current day) and click the Add/Remove Defect Button

Add the Defect and click Submit  

Indicate whether the defect was Repaired and Click into the Mechanic Signature Box    

Have the Mechanic Sign the Signature Box and hit Save  

The Mechanic's Signature will attach to your DVIR