Rivet VA-192A air inlet to snorkel. Attached filter bypass door. Clamped bypass door control cable to cylinder #2 oil line nut. Marked inner recess of oil door for reinforcement. Manufactured oil door backing plate. Cut out door and backing plate for Hartwell H5000-2 latches. Manufactured oil door frame brace. Scuffed and cleaned all parts. Epoxy and flox fill all parts.