Tough as Nails
The quest is unlocked after completing the Testing... Testing... One, Two... quest.
"Terrako—always diligent about keeping itself in good shape—has detected a vulnerability in its armor. That's the bad news. The good news is, you can fix the issue using just two components..."
"Using the materials Terrako requested, researchers were able to reinforce its external plating! The pint-sized paladin thanked them with an uplifting melody."