What was found
ENGINE REMOVED DUE TO METAL IN OIL. UPON INSPECTION OF COMPRESSOR PARTS NOTED THE FOLLOWING: 1) FRETTING ON SPUR ADPATER GEARSHAFT DUE TO RETAINING RING NOT IN SPLINE ADAPTER GROOVE AND GROOVED NR 2 1/2 BEARING INNER RACE O.D. 2) EXCESSIVE WEAR ON SPLINE ADAPTER RETAINING RING GROOVE. 3) SPIRAL LOCK RING BECOMING DISLODGED IN SPLINE ADAPTER AND CAUSING METAL IN OIL. 4) GROOVED AND DENTED ROLLERS IN NR 2 1/2 BEARING. NOTE: NR 2 1/2 BEARING INNER RACE REMOVED FROM SPUR ADAPTER GEARSHAFT AND SENT WITH OTHER PARTS AND N1 COUPLING BEING SENT FOR INSPECTION AS N1 SHAFTING SET. SEE MMIR'S NR 6477 THROUGH NR 6481 FOR ADDITIONAL PARTS REPLACED.