A320
Flight Crew Last 90 Days 130; Flight Crew Total 10000; Flight Crew Type 4100
Fatigue
Other Fatigue
General Flight Cancelled / Delayed; General Work Refused
Aircraft; Human Factors
I reported for duty this evening for a scheduled departure an hour later. The aircraft was at the gate being worked on by mechanics for an inbound writeup. It took three hours for us to push and subsequently return to the gate a half hour later with the same failure being displayed. The aircraft was repaired an additional hour later but during this time another unrelated failure took place. The failure required a new flight plan and added fuel for operation at lower altitudes. It was at this time I calculated my awake time from the previous day and concluded that if all went well; as it hadn't up to this point; I would have been up well over 24 hours while landing. Because of the ongoing maintenance items and the uncertainty of our departure time I felt it prudent to relent to my physical condition of certain fatigue if I were to continue. I called the Crew Desk and advised them of my current condition of fatigue.
Following multiple maintenance delays and false starts for a 'red eye' flight; the First Officer of an A320 felt he would be physiologically impaired due to fatigue at their likely arrival time at destination and refused to fly due to fatigue.