I performed a quick Airliners.net Tech/Ops forum search for the Service Life or Service Objective of both the CRJ Family (100, 200, 700, and 900) and the ERJ Family (135, 140, and 145) but could not find such information.
Therefore I am asking if any current member of the forum knows the number of cycles at which any member of the CRJ or ERJ Families reaches their Service Life/Service Objective? I understand that Service Life and/or Service Objective are dependent on fatigue spectrum (maneuvering, stage length, etc) therefore I am only looking for "typical" values.
My curiosity stems from a recent flight on an ERJ145. While boarding I noticed a main entry door corner doubler repair, typically an indicator of fatigue damage. I performed quick mental math and realized the Service Life and/or Service Objective of a regional jet must be relatively high.
(These numbers are assumptions to prove a point)
If the "typical" flight time of a regional jet is 1.5 hours and the "typical" turn around time is 0.5 hours we can say the "typical" arrival-departure time is 2.0 hours. Assuming the airplane starts service at 600 and ends service at 2200 each day for six days a week (leaving one day for maintenance or scheduling), the plane builds approximately 8 cycles per day or 48 cycles per week or roughly 2,500 cycles per year.
Early build CRJ200 and ERJ145 airplanes were delivered in 1998, meaning those airplanes "may" have (over approximately 14 years) 35,000 cycles. That is not an absurdly high number of cycles but it is "getting up there."
Anyway, does anyone know the number of cycles at which any member of the CRJ or ERJ Families reaches their Service Life/Service Objective?