A320
Flight Crew Air Transport Pilot (ATP); Flight Crew Instrument; Flight Crew Multiengine
Flight Crew Last 90 Days 48; Flight Crew Total 12302; Flight Crew Type 7005
Aircraft Equipment Problem Less Severe; Deviation / Discrepancy - Procedural Maintenance
General Release Refused / Aircraft Not Accepted
Aircraft; Procedure
Additional safety concerns regarding refusal to operate Aircraft X:The deferral of Slat Flap Controller Computer (SFCC) #2 and SFCC Chanel #2 Results in degraded functionality of slats and flaps; (Slow operation).SFCC1 and related protections from Wing Tip Brakes (WTBS) is only remaining operative system with no redundancy.We also have another flight control related deferral with an inoperative rudder travel limiter.Any other flight control computer(s) becoming inoperative during flight would further degrade your ability to control the aircraft i.e.; Elevator and Aileron Computers (ELACs); Secondary Computers (SECs); Flight Augmentation Computers (FACs) etc. all of which must be operational for dispatch due to the seriousness of the deferral.Both my First Officer and I were in agreement with the unacceptably reduced safety margins of this aircraft.Please include the above safety concerns with my originally filed report. I was very tired after a long day; and didn't have time to write a full and proper report which I intended to do.
Air carrier Captain refused an aircraft due to a deferred Slat Flap Controller Computer; citing concerns that flight control protections would be reduced if other computers were to fail in flight.