What was found
(CAN) IT WAS FOUND THAT AN INDIVIDUAL HAD REMOVED MATERIAL FROM THE DOUBLER & CROSS-TIE IN AN EFFORT TO ELIMINATE CONTACT WITH THE EMERGENCY EXCAPE HATCH.CRACKS WERE FOUND PROPAGATING FROM THE SHARP CORNER OF THIS RADIUS. WE ALSO DISCOVERED DURING THE REMOVAL OF THIS PART, THAT IT WAS INSTALLED WITH A PRE LOAD DURING THE RIVETING PROCESS. I AM SURE THIS HELPED THE CRACKS TO FORM.NO REFERENCES OR DATA WAS FOUND TO SUPPORT THE WORK DONE, BUT IT CLEARLY DID NOT FOLLOW STANDARD PRACTICES.