What was found
PDX: C3 CHECK, AFT SERVICE DOOR HAS A LITE SCRATCH ON OUTER SKIN APPROX 6 INCHES FROM FWD EDGE. MAINTENANCE REPAIRED IAW Q400 SRM 51-44-00, RD 8/4-53-666, NDTM PART 6, 51-00-01-250-801, SRM 51-21-10, SRM 51-25-10-370-801 AND SRM TASK 51-25-15-370-801.