EMB ERJ 170/175 ER/LR
Flight Crew Air Transport Pilot (ATP)
Aircraft Equipment Problem Less Severe; Deviation / Discrepancy - Procedural Maintenance; Deviation / Discrepancy - Procedural Published Material / Policy
Aircraft; Procedure
Captain's Oxygen Mask on Aircraft X was opaque (could not use visually). I wrote up the discrepancy. Maintenance came out to the aircraft and wiped it clear with an alcohol sanitizer wipe. I reminded him that this was not the procedure that I had watched Maintenance perform over 25 times before; but he assured me that this method was correct. Establish Maintenance procedures that are consistent and will not further damage the O2 mask. Change SOP to mandate a visual inspection of O2 mask prior to each flight.
EMB-175 Captain reported disagreement with maintenance procedures used to clear an opaque Captains O2 Mask Visor.