I believe every aircraft goes through a "High blow" test prior to leaving the hangar it's at 12.1 psid, the first 777 a seal failed and was redesigned, in March of 2006 China Airlines 747-400F blew the nose door open it opened with so much force it went over the limit and smashed the cockpit windows, China Airlines tried and failed to reject the aircraft, Boeing repaired it and delivered it as required, however China Airlines never painted it, it was white, interestingly the pressure wasn't high at the time the door opened. The test is usually done late at night with minimal employees in the hangar, the aircraft is then released to the flight line.
The fatigue airframe was most likely well above normal and abnormal limits so don't think it will cause any delay perhaps a modification to extend the airframe life and a cycle limitation on pre modified aircraft until modified.
Last edited by CCA; 9th Sep 2019 at 12:40.