The Aviation Week Fleet & MRO Forecast also sees this trend ending soon. It projects annual retirement ages based on historical trends and other factors impacting retirement, including but not limited to projected maintenance requirements, aircraft operating economics, airframe versatility, and flexibility and ownership type. That forecast shows the average age skyrocketing for narrowbodies this year to 29 and remaining between 28 and 29.5 through 2018. It also forecasts a widebody average retirement age of about 27 in 2013 and 25-27 through 2020.
This year's results should show whether that forecast remains on track.