Flight Crew Last 90 Days 130; Flight Crew Total 6700
Fatigue
Other Fatigue
General None Reported / Taken
Human Factors; Environment - Non Weather Related
My day began as an 8 am reserve short call. Crew Scheduling called me at 8 am and informed me that I had an 11:30 departure. After arriving at the airport; the paring then called for a departure across the U.S. after a two and a half hour sit. The first aircraft that we attempted to fly had an APU that auto-shutdown. While at the gate waiting for Maintenance to repair; the temperature on the aircraft exceeded 90 degrees due to an inoperable loading bridge AC unit. The Captain elected to not board the aircraft for passenger safety due to high temperatures. After about 45 minutes and Maintenance unable to repair the APU; the Captain refused the aircraft. The replacement aircraft they found for us was due in around 17:30. After arriving at the aircraft; we noticed several inbound write ups to include oxygen servicing. The repairs delayed us to the point of me being illegal and Scheduling notified us that I would not be flying the flight to ZZZ1 due to (duty day exceeding 16 hours). Scheduling informed me that I was being reassigned and now flying a flight leaving 13 hours after my duty day began. I then informed the Flight Manager of my growing concern and fatigue. He informed me that the next flight would probably be cancelled for lack of coverage; but to use my best judgment for safety and how I felt. I notified Scheduling that I was fit to fly but may be fatigued for the following flight the next morning. The layover was scheduled for 13 hours with a mid morning departure. At approximately 5:15 am; I was awakened by a loud group of people returning to their rooms across the hall. I was then unable to get back to sleep. I then felt my body becoming ill due to lack of rest so I notified Crew Scheduling around 5:30 am that I would be unable to fly after the next flight. Several factors contributed to my fatigue on this paring. The 6 hour and 40 minute rolling delay was the primary cause. In addition; [I had] no adequate rest quarters or room during the delay. Another contributing factor for the fatigue was the reduced rest (9 hours 22 minutes) from the previous paring (just 2 days prior).
A320 First Officer describes the circumstances leading up to a fatigue call to Scheduling.