AN MD80 MAIN LNDG GEAR DOOR ASSEMBLY MAY HAVE BEEN REPAIRED USING UNAPPROVED AND UNAUTHORIZED INSTRUCTIONS AND DOCUMENTS.

Narrative

LNDG GEAR DOOR WAS ROUTED TO SHOP FOR EXTENSIVE REPAIRS DUE TO INSERVICE DAMAGE. OVER THE COURSE OF SEVERAL MONTHS; MYSELF AND SEVERAL OTHER MECHANICS REPAIRED DOOR USING BLUEPRINTS; REPAIR MANUALS; AND SUPERVISORS' INSTRUCTIONS. AFTER DOOR LEFT SHOP; A DISCUSSION AMONG SEVERAL MECHANICS AND MYSELF TOOK PLACE REGARDING COMPLEX; CONFUSING REPAIR SCENARIOS REQUIRED ON DOOR. I REALIZED THEN THAT I COULD HAVE POSSIBLY INADVERTENTLY MISINTERPRETED BLUEPRINTS/REPAIR MANUALS AND REFERENCES FOR REPAIRS. CALLBACK CONVERSATION WITH RPTR REVEALED THE FOLLOWING INFO: THE RPTR STATED THE FINAL RESOLUTION ON THE DOOR REPAIR WAS THAT IT WAS REPAIRED CORRECTLY. THE RPTR SAID ONE PROBLEM WAS A PREVIOUS REPAIR THAT WAS CHANGED IN THE STRUCTURAL REPAIR MANUAL LONG AFTER THIS REPAIR WAS ACCOMPLISHED AND THE QUESTION WAS IS THE REPAIR OK? THE RPTR SAID THE BLUEPRINTS HAD ENGINEERING APPROVAL EVEN THOUGH THE PRINTS WERE PRETTY OLD. THE RPTR STATED THE MAIN GEAR DOOR WAS INSPECTED AFTER COMPLETION OF ALL WORK AND FOUND OK FOR SERVICE.