pproval AVI Systems Test Labor Only (L/P/S) Step: 15.1.4 Waiting approval AVI /Electrical Labor Only (L/P/S) Step: 15.1.5 Waiting approval AVI Sheet Metal Labor Only (L/P/S) Step: 15.1.5.1 Completed Lightly scuff sanded 5" area around routed area. then cleaned area with cheese cloth and isopropyl a