What was found
T/O ROLL APPROX 90 KTS, CAPT NOTICED NR 2 ENG HIGH OIL PRESSURE IND 332 PSI. AIRCRAFT RETURNED. MX REPLACED NR 2 ENG PRESSURE PUMP, NR 4 BEARING SCAVENGE VALVE & OIL FILTERS. PROBLEM PERSISTS, BUT OIL PRESSURE REDUCED TO ACCEPTABLE LIMITS FOR FERRY TO PHX. FILTERS EXAMINED & FOUND CONTAMINATED WITH CARBON. MX FLUSHED NR 2 ENG OIL SYS & DISCONNECTED. INSPECTED FOR DEBRIS & RECONNECTED OIL SYS RESTRICTORS & STRAINERS. NO DEBRIS FOUND. REPLACED NR 2 ENG INTERFACE UNIT, NR 4 BEARING PRESSURE TRANSDUCER & PROBLEM PERSISTS. REMOVED & REPLACED NR 2 ENG. DURING TEAR DOWN OF ENG OIL DISTRIBUTION SYS, A PIECE OF SAFETY WIRE FOUND UPSTREAM OF OIL DISTRIBUTOR RESTRICTOR. OIL JETS FOUND SATISFACTORY.