MD80 IN NEED OF ENGINE BORESCOPE IS REFUSED BY FLT CREW FOR A FERRY FLT BACK TO MAINTENANCE STATION.

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FLEW SAME ACFT INTO ZZZZ THE PREVIOUS EVENING. DURING LNDG CAPT NOTICED BIRDS PASS OVER HIS EYEBROW WINDOW AND MADE AN E6 ENTRY RPTING A POSSIBLE BIRD STRIKE. UPON ARR AT THE ARPT THE NEXT MORNING WE LEARNED OUR SCHEDULED FLT WAS CANCELED AND WE WERE TO PERFORM A 1-TIME FERRY OF THE SAME JET TO ZZZ DUE TO THE R ENG HAVING SUSTAINED FOREIGN OBJECT DAMAGE (FOD). CAPT AND I INSPECTED THE ENG AND NOTICED A FAN BLADE THAT WAS DAMAGED AND HAD BEEN BLENDED BY ZZZZ MAINT OVERNIGHT. WE ALSO NOTICED WHAT APPEARED TO BE ADDITIONAL DAMAGE TO ANOTHER FIRST STAGE FAN BLADE AND THE ACOUSTIC LINER. THE DAMAGE APPEARED TO BE CAUSED BY HARD FOD. CAPT BEGAN EXTENSIVE TELEPHONE CONSULTATIONS WITH DISPATCH; MAINT CTL AND THE CHIEF PLT. ADDITIONAL PHOTOGRAPHS OF THE ENG WERE SENT TO MAINT HEADQUARTERS OF THE DAMAGE WE NOTICED. CAPT RELATED TO ME THAT MAINT WANTED TO PERFORM A BORESCOPE INSPECTION IN ZZZ TO DETERMINE IF THERE WAS INTERNAL DAMAGE TO THE ENG. IF THAT WAS THE CASE; CAPT FELT IT SHOULD BE BORESCOPED PRIOR TO FLT OR BE FERRIED BY MAINT CHK/TEST PLTS; NOT US AND OUR FLT ATTENDANTS. CAPT REFUSED THE AIRPLANE.