What was found
(CAN) DURING DISASSEMBLY OF 27427-3 ACTUATOR ASSEMBLY (ITEM 2-1) IAW CMM 27-23-01 REV 5, DATED AUG 21/07, IT WAS NOTED THAT THE TWO (2) DYNAMIC SEALS USED TO PREVENT EXTERNAL FLUID LEAKAGE TO ATMOSPHERE ON BOTH ENDS OF THE PISTON ROD WERE INSTALLED IN THE WRONG GROVE LOCATION OF THE 27425-1 HOUSING GLAND (ITEM 2-40) AND 27424-1 TAIL STOCK S/A (ITEM 2-100). THE INNER DYNAMIC SEALS WERE INSTALLED ON THE OUTER GROOVE AND THE OUTER DYNAMIC SEALS WERE INSTALLED ON THE INNER GROOVE OF THE TAILSTOCK AND GLAND HOUSING. ALSO IT WAS NOTED THAT APART FROM ITEM 60 AND 120 BEING INSTALLED IN THE WRONG GROOVE, THEY WERE INSTALLED BACKWARD. ‘O’ RING (REF. ITEM 2-65 OR 2-65A USED WITH ITEM 2-60 AND ITEM 2-130 OR 2-130A USED WITH ITEM 2-120) WERE INSTALLED ON THE OUTSIDE TOWARD THE ATMOSPHERE INSTEAD OF TOWARD THE INTERNAL PRESSURE OF THE ACTUATOR. SEE ATTACHMENTS FOR PERTAINING DOCUMENTS, PHOTO’S AND PART BREAKDOWN OF UNIT AT DISCREPANT ASSEMBLY LEVEL IN QUESTION. NOTE: TIME SINCE OVERHAUL UNKNOWN. UNIT REPAIRED BY ANOTHER REPAIR STATION. NAME UNKNOWN. (TC NR 20091214008)