As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
FLT NR 2090 DEPARTED CDR, THE RIGHT ENGINE DECELERATED AND WENT INTO FEATHER (AUTO FEATHER ENGAGED) AFTER TAKEOFF. FLIGHT CREW SHUT DOWN ENGINE AND LANDED SAFELY BACK IN CDR. MAINTENANCE FOUND THE PY LINE LOOSE AT THE FIRESHIELD. 'B' NUT WAS TIGHTENED AND SYSTEM CHECKED SATISFACTORY. AIRCRAFT WAS RETURNED TO SERVICE. (Z)