What was found
MAR 5. VENT EXTRACT FAULT. CORRECTIVE ACTIONS: MAR 5. THIS ITEM ENTER ON DMI SHEET # 29420 ITEM 1 UNDER MCC AUTHORIZATION -CNMCC-2019-AV1178 MAINTENENCE PROCEDURE APPLIED. DUE TSM 21-26-00-810-810-A REMOVAL AND INSTALLATION OF THE EXTRACT FAN PERFORMED IN ACCORDANCE WITH AMM 21-26-51-000-001-A AND AMM 21-26-51-400-001-A OPERATIONAL TEST OF THE VENTILATION SYSTEM OF THE AVIONIC EQUIPMENT IAW AMM 21-26-00-710-001-A TEST SATISFACTORY CLEARED DMI.