Hartzell hydraulic prop with no ADs

Fuel Injected 

E225-8 ETT 2837.65

TSMO 528.69 hrs

PTSO 522.79 hrs

Oil filter adapter

Slope Windshield

Recent new Tip Tanks

Cleveland wheels and brakes

Wing tip strobes

PS Engineering PMA4000 audio panel with 4 place intercom

The Bad

Aircraft flew in for an Annual inspection the compression check was completed(#1 70/80 #2 74/80 #3 70/80 #4 74/80 #5 72/80 #6 72/80) and before any more work was performed we noticed that there was an large area of corrosion under the left outboard wing.  The tip tank was removed to reveal a large mouse nest. Damage(corrosion) can be seen in the outboard 6 feet of the wing. Many ribs and lower skins. Damage to spar questionable.