What was found
PDX: LT OUTBOARD FLAP UPPER SKIN CHAFED 13.5" FWD OF AFT EDGE APPROX 5" LONG ON PREVIOUS REPAIR 80" FROM INBOARD END. MAINTENANCE REPAIRED IAW Q400 SRM 51-26-10, SRM 57-52-30-320-801, NDTM PART 6, 51-00-02, NDTM PART 1, 51-00-04, HORIZON EA 6-57-444, SRM 51-42-90 AND SRM 51-25-05-370-801.