What was found
IMMEDIATELY AFTER LIFT OFF FROM ANC, NR 2 ENGINE AUTO FEATHERED. AIRCRAFT RETURNED TO ANC AND LANDED WITHOUT INCIDENT. MAINTENANCE FOUND BETA LINKAGE OUT OF ADJUSTMENT RIGGED BETA, TORQUE AND PROPELLER LINKAGES. ENGINE RUN AND AUTO FEATHER SYSTEM CHECK NORMAL. AIRCRAFT RETURNED TO GATE DUE TO NR 2 ENGINE AUTO FEATHER WOULD NOT ARM. MAINTENANCE REPLACED THE HIGH PRESSURE AUTO FEATHER SWITCH. OPS CHECKED OK. (M)