What was found
RH FLOOR SILL CORRODED, FS 280.00 FS 284.00. TCI 53-10-219. UPON FURTHER INVESTIGATION CORROSION FOUND TO BE ALL THE WAY THROUGH FLOOR SILL REMOVED FLOOR SILL IAW CRJ 900 SRM 51-42-21,13-06-001-001-A01. REMOVED CANNON PLUGS FROM AOA AND INTERCOM SWITCH AND DISPLACED WIRES, LOCATED AND DRILLED NEW SERVICEABLE RH FLOOR SILL P/N SH670-32172-11 IAW CRJ 900 SRM 51-40-11-001-001-A01. INSTALLED NEW SERVICEABLE RH FLOOR SILL P/N SH670-32172-11 IAW CRJ 900 SRM 51-42-06-001-001-A01, 51-42-13-001-001-A01, AND 51-42-21-001-001-A01. RECONNECTED CANNON PLUG TO AOA IAW CRJ 900 AMM 27-35-05-400-801-A01. RECONNECTED CONNECTOR PLUG OF THE OBSERVER AUDIO PANEL IAW AMM 23-51-06-400-801-A01. OPS CHECK OF THE AOA TRANSDUCER GOOD IAW AMM 27-35-05-710-801-A01. OPS TEST OF THE OBSERVER AUDIO PANEL GOOD IAW AMM 23-51-06-710-801-A01.