Boeing has been heavily criticised because they keep on adding things to the 737-concept to increase payload and range but there is a limit, and they have been pushing that limit for a while rather than diving into a broad new design on a white sheet of paper.
That may be the case, but the issue itself may not be Boeings responsibility. The 739-ER entered service in 2007. Depending on when Delta took possesion the aircract may have already been through 1 D check.
If there had been any other issues requiring the flap assembly to be worked on.
How was it maintained the airlines from delivery to issue?
The 737NG has been a reliable airframe.
Though the MAX and the issue with the door plug have tainted the entire 737 line. Simmilar to the American DC10 crash in Chicago. The issue stemmed from impropper MX procedures that MD had on record of discouraging.
Rug Rat (Brent Hendricks)
Blog and Forums - www.catracing.org
IMAGE BBS! 3.0 - bbs.catracing.org 6400
C-Net Amiga BBS - bbs.catracing.org 6840
--- CNet/5
* Origin: The Rat's Den BBS (1:135/250)